/* -*- c -*-
----------------------------------------------------------------
Notice that the following BSD-style license applies to this one
file (valgrind.h) only. The rest of Valgrind is licensed under the
terms of the GNU General Public License, version 2, unless
otherwise indicated. See the COPYING file in the source
distribution for details.
----------------------------------------------------------------
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2010 Julian Seward. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------
Notice that the above BSD-style license applies to this one file
(valgrind.h) only. The entire rest of Valgrind is licensed under
the terms of the GNU General Public License, version 2. See the
COPYING file in the source distribution for details.
----------------------------------------------------------------
*/
/* This file is for inclusion into client (your!) code.
You can use these macros to manipulate and query Valgrind's
execution inside your own programs.
The resulting executables will still run without Valgrind, just a
little bit more slowly than they otherwise would, but otherwise
unchanged. When not running on valgrind, each client request
consumes very few (eg. 7) instructions, so the resulting performance
loss is negligible unless you plan to execute client requests
millions of times per second. Nevertheless, if that is still a
problem, you can compile with the NVALGRIND symbol defined (gcc
-DNVALGRIND) so that client requests are not even compiled in. */
#ifndef __VALGRIND_H
#define __VALGRIND_H
/* ------------------------------------------------------------------ */
/* VERSION NUMBER OF VALGRIND */
/* ------------------------------------------------------------------ */
/* Specify Valgrind's version number, so that user code can
conditionally compile based on our version number. Note that these
were introduced at version 3.6 and so do not exist in version 3.5
or earlier. The recommended way to use them to check for "version
X.Y or later" is (eg)
#if defined(__VALGRIND_MAJOR__) && defined(__VALGRIND_MINOR__) \
&& (__VALGRIND_MAJOR__ > 3 \
|| (__VALGRIND_MAJOR__ == 3 && __VALGRIND_MINOR__ >= 6))
*/
#define __VALGRIND_MAJOR__ 3
#define __VALGRIND_MINOR__ 6
#include <stdarg.h>
#include <stdint.h>
/* Nb: this file might be included in a file compiled with -ansi. So
we can't use C++ style "//" comments nor the "asm" keyword (instead
use "__asm__"). */
/* Derive some tags indicating what the target platform is. Note
that in this file we're using the compiler's CPP symbols for
identifying architectures, which are different to the ones we use
within the rest of Valgrind. Note, __powerpc__ is active for both
32 and 64-bit PPC, whereas __powerpc64__ is only active for the
latter (on Linux, that is).
Misc note: how to find out what's predefined in gcc by default:
gcc -Wp,-dM somefile.c
*/
#undef PLAT_x86_darwin
#undef PLAT_amd64_darwin
#undef PLAT_x86_win32
#undef PLAT_x86_linux
#undef PLAT_amd64_linux
#undef PLAT_ppc32_linux
#undef PLAT_ppc64_linux
#undef PLAT_arm_linux
#undef PLAT_s390x_linux
#if defined(__APPLE__) && defined(__i386__)
# define PLAT_x86_darwin 1
#elif defined(__APPLE__) && defined(__x86_64__)
# define PLAT_amd64_darwin 1
#elif defined(__MINGW32__) || defined(__CYGWIN32__) \
|| (defined(_WIN32) && defined(_M_IX86))
# define PLAT_x86_win32 1
#elif defined(__linux__) && defined(__i386__)
# define PLAT_x86_linux 1
#elif defined(__linux__) && defined(__x86_64__)
# define PLAT_amd64_linux 1
#elif defined(__linux__) && defined(__powerpc__) && !defined(__powerpc64__)
# define PLAT_ppc32_linux 1
#elif defined(__linux__) && defined(__powerpc__) && defined(__powerpc64__)
# define PLAT_ppc64_linux 1
#elif defined(__linux__) && defined(__arm__)
# define PLAT_arm_linux 1
#elif defined(__linux__) && defined(__s390__) && defined(__s390x__)
# define PLAT_s390x_linux 1
#else
/* If we're not compiling for our target platform, don't generate
any inline asms. */
# if !defined(NVALGRIND)
# define NVALGRIND 1
# endif
#endif
/* ------------------------------------------------------------------ */
/* ARCHITECTURE SPECIFICS for SPECIAL INSTRUCTIONS. There is nothing */
/* in here of use to end-users -- skip to the next section. */
/* ------------------------------------------------------------------ */
/*
* VALGRIND_DO_CLIENT_REQUEST(): a statement that invokes a Valgrind client
* request. Accepts both pointers and integers as arguments.
*
* VALGRIND_DO_CLIENT_REQUEST_EXPR(): a C expression that invokes a Valgrind
* client request and whose value equals the client request result. Accepts
* both pointers and integers as arguments.
*/
#define VALGRIND_DO_CLIENT_REQUEST(_zzq_rlval, _zzq_default, \
_zzq_request, _zzq_arg1, _zzq_arg2, \
_zzq_arg3, _zzq_arg4, _zzq_arg5) \
{ (_zzq_rlval) = VALGRIND_DO_CLIENT_REQUEST_EXPR((_zzq_default), \
(_zzq_request), (_zzq_arg1), (_zzq_arg2), \
(_zzq_arg3), (_zzq_arg4), (_zzq_arg5)); }
#if defined(NVALGRIND)
/* Define NVALGRIND to completely remove the Valgrind magic sequence
from the compiled code (analogous to NDEBUG's effects on
assert()) */
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
(_zzq_default)
#else /* ! NVALGRIND */
/* The following defines the magic code sequences which the JITter
spots and handles magically. Don't look too closely at them as
they will rot your brain.
The assembly code sequences for all architectures is in this one
file. This is because this file must be stand-alone, and we don't
want to have multiple files.
For VALGRIND_DO_CLIENT_REQUEST, we must ensure that the default
value gets put in the return slot, so that everything works when
this is executed not under Valgrind. Args are passed in a memory
block, and so there's no intrinsic limit to the number that could
be passed, but it's currently five.
The macro args are:
_zzq_rlval result lvalue
_zzq_default default value (result returned when running on real CPU)
_zzq_request request code
_zzq_arg1..5 request params
The other two macros are used to support function wrapping, and are
a lot simpler. VALGRIND_GET_NR_CONTEXT returns the value of the
guest's NRADDR pseudo-register and whatever other information is
needed to safely run the call original from the wrapper: on
ppc64-linux, the R2 value at the divert point is also needed. This
information is abstracted into a user-visible type, OrigFn.
VALGRIND_CALL_NOREDIR_* behaves the same as the following on the
guest, but guarantees that the branch instruction will not be
redirected: x86: call *%eax, amd64: call *%rax, ppc32/ppc64:
branch-and-link-to-r11. VALGRIND_CALL_NOREDIR is just text, not a
complete inline asm, since it needs to be combined with more magic
inline asm stuff to be useful.
*/
/* ------------------------- x86-{linux,darwin} ---------------- */
#if defined(PLAT_x86_linux) || defined(PLAT_x86_darwin) \
|| (defined(PLAT_x86_win32) && defined(__GNUC__))
typedef
struct {
unsigned int nraddr; /* where's the code? */
}
OrigFn;
#define __SPECIAL_INSTRUCTION_PREAMBLE \
"roll $3, %%edi ; roll $13, %%edi\n\t" \
"roll $29, %%edi ; roll $19, %%edi\n\t"
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
__extension__ \
({volatile unsigned int _zzq_args[6]; \
volatile unsigned int _zzq_result; \
_zzq_args[0] = (unsigned int)(_zzq_request); \
_zzq_args[1] = (unsigned int)(_zzq_arg1); \
_zzq_args[2] = (unsigned int)(_zzq_arg2); \
_zzq_args[3] = (unsigned int)(_zzq_arg3); \
_zzq_args[4] = (unsigned int)(_zzq_arg4); \
_zzq_args[5] = (unsigned int)(_zzq_arg5); \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %EDX = client_request ( %EAX ) */ \
"xchgl %%ebx,%%ebx" \
: "=d" (_zzq_result) \
: "a" (&_zzq_args[0]), "0" (_zzq_default) \
: "cc", "memory" \
); \
_zzq_result; \
})
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
volatile unsigned int __addr; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %EAX = guest_NRADDR */ \
"xchgl %%ecx,%%ecx" \
: "=a" (__addr) \
: \
: "cc", "memory" \
); \
_zzq_orig->nraddr = __addr; \
}
#define VALGRIND_CALL_NOREDIR_EAX \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* call-noredir *%EAX */ \
"xchgl %%edx,%%edx\n\t"
#endif /* PLAT_x86_linux || PLAT_x86_darwin || (PLAT_x86_win32 && __GNUC__) */
/* ------------------------- x86-Win32 ------------------------- */
#if defined(PLAT_x86_win32) && !defined(__GNUC__)
typedef
struct {
unsigned int nraddr; /* where's the code? */
}
OrigFn;
#if defined(_MSC_VER)
#define __SPECIAL_INSTRUCTION_PREAMBLE \
__asm rol edi, 3 __asm rol edi, 13 \
__asm rol edi, 29 __asm rol edi, 19
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
valgrind_do_client_request_expr((uintptr_t)(_zzq_default), \
(uintptr_t)(_zzq_request), (uintptr_t)(_zzq_arg1), \
(uintptr_t)(_zzq_arg2), (uintptr_t)(_zzq_arg3), \
(uintptr_t)(_zzq_arg4), (uintptr_t)(_zzq_arg5))
static __inline uintptr_t
valgrind_do_client_request_expr(uintptr_t _zzq_default, uintptr_t _zzq_request,
uintptr_t _zzq_arg1, uintptr_t _zzq_arg2,
uintptr_t _zzq_arg3, uintptr_t _zzq_arg4,
uintptr_t _zzq_arg5)
{
volatile uintptr_t _zzq_args[6];
volatile unsigned int _zzq_result;
_zzq_args[0] = (uintptr_t)(_zzq_request);
_zzq_args[1] = (uintptr_t)(_zzq_arg1);
_zzq_args[2] = (uintptr_t)(_zzq_arg2);
_zzq_args[3] = (uintptr_t)(_zzq_arg3);
_zzq_args[4] = (uintptr_t)(_zzq_arg4);
_zzq_args[5] = (uintptr_t)(_zzq_arg5);
__asm { __asm lea eax, _zzq_args __asm mov edx, _zzq_default
__SPECIAL_INSTRUCTION_PREAMBLE
/* %EDX = client_request ( %EAX ) */
__asm xchg ebx,ebx
__asm mov _zzq_result, edx
}
return _zzq_result;
}
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
volatile unsigned int __addr; \
__asm { __SPECIAL_INSTRUCTION_PREAMBLE \
/* %EAX = guest_NRADDR */ \
__asm xchg ecx,ecx \
__asm mov __addr, eax \
} \
_zzq_orig->nraddr = __addr; \
}
#define VALGRIND_CALL_NOREDIR_EAX ERROR
#else
#error Unsupported compiler.
#endif
#endif /* PLAT_x86_win32 */
/* ------------------------ amd64-{linux,darwin} --------------- */
#if defined(PLAT_amd64_linux) || defined(PLAT_amd64_darwin)
typedef
struct {
uint64_t nraddr; /* where's the code? */
}
OrigFn;
#define __SPECIAL_INSTRUCTION_PREAMBLE \
"rolq $3, %%rdi ; rolq $13, %%rdi\n\t" \
"rolq $61, %%rdi ; rolq $51, %%rdi\n\t"
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
__extension__ \
({ volatile uint64_t _zzq_args[6]; \
volatile uint64_t _zzq_result; \
_zzq_args[0] = (uint64_t)(_zzq_request); \
_zzq_args[1] = (uint64_t)(_zzq_arg1); \
_zzq_args[2] = (uint64_t)(_zzq_arg2); \
_zzq_args[3] = (uint64_t)(_zzq_arg3); \
_zzq_args[4] = (uint64_t)(_zzq_arg4); \
_zzq_args[5] = (uint64_t)(_zzq_arg5); \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %RDX = client_request ( %RAX ) */ \
"xchgq %%rbx,%%rbx" \
: "=d" (_zzq_result) \
: "a" (&_zzq_args[0]), "0" (_zzq_default) \
: "cc", "memory" \
); \
_zzq_result; \
})
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
volatile uint64_t __addr; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %RAX = guest_NRADDR */ \
"xchgq %%rcx,%%rcx" \
: "=a" (__addr) \
: \
: "cc", "memory" \
); \
_zzq_orig->nraddr = __addr; \
}
#define VALGRIND_CALL_NOREDIR_RAX \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* call-noredir *%RAX */ \
"xchgq %%rdx,%%rdx\n\t"
#endif /* PLAT_amd64_linux || PLAT_amd64_darwin */
/* ------------------------ ppc32-linux ------------------------ */
#if defined(PLAT_ppc32_linux)
typedef
struct {
unsigned int nraddr; /* where's the code? */
}
OrigFn;
#define __SPECIAL_INSTRUCTION_PREAMBLE \
"rlwinm 0,0,3,0,0 ; rlwinm 0,0,13,0,0\n\t" \
"rlwinm 0,0,29,0,0 ; rlwinm 0,0,19,0,0\n\t"
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
\
__extension__ \
({ unsigned int _zzq_args[6]; \
unsigned int _zzq_result; \
unsigned int* _zzq_ptr; \
_zzq_args[0] = (unsigned int)(_zzq_request); \
_zzq_args[1] = (unsigned int)(_zzq_arg1); \
_zzq_args[2] = (unsigned int)(_zzq_arg2); \
_zzq_args[3] = (unsigned int)(_zzq_arg3); \
_zzq_args[4] = (unsigned int)(_zzq_arg4); \
_zzq_args[5] = (unsigned int)(_zzq_arg5); \
_zzq_ptr = _zzq_args; \
__asm__ volatile("mr 3,%1\n\t" /*default*/ \
"mr 4,%2\n\t" /*ptr*/ \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* %R3 = client_request ( %R4 ) */ \
"or 1,1,1\n\t" \
"mr %0,3" /*result*/ \
: "=b" (_zzq_result) \
: "b" (_zzq_default), "b" (_zzq_ptr) \
: "cc", "memory", "r3", "r4"); \
_zzq_result; \
})
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
unsigned int __addr; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %R3 = guest_NRADDR */ \
"or 2,2,2\n\t" \
"mr %0,3" \
: "=b" (__addr) \
: \
: "cc", "memory", "r3" \
); \
_zzq_orig->nraddr = __addr; \
}
#define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* branch-and-link-to-noredir *%R11 */ \
"or 3,3,3\n\t"
#endif /* PLAT_ppc32_linux */
/* ------------------------ ppc64-linux ------------------------ */
#if defined(PLAT_ppc64_linux)
typedef
struct {
uint64_t nraddr; /* where's the code? */
uint64_t r2; /* what tocptr do we need? */
}
OrigFn;
#define __SPECIAL_INSTRUCTION_PREAMBLE \
"rotldi 0,0,3 ; rotldi 0,0,13\n\t" \
"rotldi 0,0,61 ; rotldi 0,0,51\n\t"
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
\
__extension__ \
({ uint64_t _zzq_args[6]; \
register uint64_t _zzq_result __asm__("r3"); \
register uint64_t* _zzq_ptr __asm__("r4"); \
_zzq_args[0] = (uint64_t)(_zzq_request); \
_zzq_args[1] = (uint64_t)(_zzq_arg1); \
_zzq_args[2] = (uint64_t)(_zzq_arg2); \
_zzq_args[3] = (uint64_t)(_zzq_arg3); \
_zzq_args[4] = (uint64_t)(_zzq_arg4); \
_zzq_args[5] = (uint64_t)(_zzq_arg5); \
_zzq_ptr = _zzq_args; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %R3 = client_request ( %R4 ) */ \
"or 1,1,1" \
: "=r" (_zzq_result) \
: "0" (_zzq_default), "r" (_zzq_ptr) \
: "cc", "memory"); \
_zzq_result; \
})
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
register uint64_t __addr __asm__("r3"); \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %R3 = guest_NRADDR */ \
"or 2,2,2" \
: "=r" (__addr) \
: \
: "cc", "memory" \
); \
_zzq_orig->nraddr = __addr; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* %R3 = guest_NRADDR_GPR2 */ \
"or 4,4,4" \
: "=r" (__addr) \
: \
: "cc", "memory" \
); \
_zzq_orig->r2 = __addr; \
}
#define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* branch-and-link-to-noredir *%R11 */ \
"or 3,3,3\n\t"
#endif /* PLAT_ppc64_linux */
/* ------------------------- arm-linux ------------------------- */
#if defined(PLAT_arm_linux)
typedef
struct {
unsigned int nraddr; /* where's the code? */
}
OrigFn;
#define __SPECIAL_INSTRUCTION_PREAMBLE \
"mov r12, r12, ror #3 ; mov r12, r12, ror #13 \n\t" \
"mov r12, r12, ror #29 ; mov r12, r12, ror #19 \n\t"
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
\
__extension__ \
({volatile unsigned int _zzq_args[6]; \
volatile unsigned int _zzq_result; \
_zzq_args[0] = (unsigned int)(_zzq_request); \
_zzq_args[1] = (unsigned int)(_zzq_arg1); \
_zzq_args[2] = (unsigned int)(_zzq_arg2); \
_zzq_args[3] = (unsigned int)(_zzq_arg3); \
_zzq_args[4] = (unsigned int)(_zzq_arg4); \
_zzq_args[5] = (unsigned int)(_zzq_arg5); \
__asm__ volatile("mov r3, %1\n\t" /*default*/ \
"mov r4, %2\n\t" /*ptr*/ \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* R3 = client_request ( R4 ) */ \
"orr r10, r10, r10\n\t" \
"mov %0, r3" /*result*/ \
: "=r" (_zzq_result) \
: "r" (_zzq_default), "r" (&_zzq_args[0]) \
: "cc","memory", "r3", "r4"); \
_zzq_result; \
})
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
unsigned int __addr; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
/* R3 = guest_NRADDR */ \
"orr r11, r11, r11\n\t" \
"mov %0, r3" \
: "=r" (__addr) \
: \
: "cc", "memory", "r3" \
); \
_zzq_orig->nraddr = __addr; \
}
#define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
__SPECIAL_INSTRUCTION_PREAMBLE \
/* branch-and-link-to-noredir *%R4 */ \
"orr r12, r12, r12\n\t"
#endif /* PLAT_arm_linux */
/* ------------------------ s390x-linux ------------------------ */
#if defined(PLAT_s390x_linux)
typedef
struct {
uint64_t nraddr; /* where's the code? */
}
OrigFn;
/* __SPECIAL_INSTRUCTION_PREAMBLE will be used to identify Valgrind specific
* code. This detection is implemented in platform specific toIR.c
* (e.g. VEX/priv/guest_s390_decoder.c).
*/
#define __SPECIAL_INSTRUCTION_PREAMBLE \
"lr 15,15\n\t" \
"lr 1,1\n\t" \
"lr 2,2\n\t" \
"lr 3,3\n\t"
#define __CLIENT_REQUEST_CODE "lr 2,2\n\t"
#define __GET_NR_CONTEXT_CODE "lr 3,3\n\t"
#define __CALL_NO_REDIR_CODE "lr 4,4\n\t"
#define VALGRIND_DO_CLIENT_REQUEST_EXPR( \
_zzq_default, _zzq_request, \
_zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \
__extension__ \
({volatile uint64_t _zzq_args[6]; \
volatile uint64_t _zzq_result; \
_zzq_args[0] = (uint64_t)(_zzq_request); \
_zzq_args[1] = (uint64_t)(_zzq_arg1); \
_zzq_args[2] = (uint64_t)(_zzq_arg2); \
_zzq_args[3] = (uint64_t)(_zzq_arg3); \
_zzq_args[4] = (uint64_t)(_zzq_arg4); \
_zzq_args[5] = (uint64_t)(_zzq_arg5); \
__asm__ volatile(/* r2 = args */ \
"lgr 2,%1\n\t" \
/* r3 = default */ \
"lgr 3,%2\n\t" \
__SPECIAL_INSTRUCTION_PREAMBLE \
__CLIENT_REQUEST_CODE \
/* results = r3 */ \
"lgr %0, 3\n\t" \
: "=d" (_zzq_result) \
: "a" (&_zzq_args[0]), "0" (_zzq_default) \
: "cc", "2", "3", "memory" \
); \
_zzq_result; \
})
#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \
{ volatile OrigFn* _zzq_orig = &(_zzq_rlval); \
volatile uint64_t __addr; \
__asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \
__GET_NR_CONTEXT_CODE \
"lgr %0, 3\n\t" \
: "=a" (__addr) \
: \
: "cc", "3", "memory" \
); \
_zzq_orig->nraddr = __addr; \
}
#define VALGRIND_CALL_NOREDIR_R1 \
__SPECIAL_INSTRUCTION_PREAMBLE \
__CALL_NO_REDIR_CODE
#endif /* PLAT_s390x_linux */
/* Insert assembly code for other platforms here... */
#endif /* NVALGRIND */
/* ------------------------------------------------------------------ */
/* PLATFORM SPECIFICS for FUNCTION WRAPPING. This is all very */
/* ugly. It's the least-worst tradeoff I can think of. */
/* ------------------------------------------------------------------ */
/* This section defines magic (a.k.a appalling-hack) macros for doing
guaranteed-no-redirection macros, so as to get from function
wrappers to the functions they are wrapping. The whole point is to
construct standard call sequences, but to do the call itself with a
special no-redirect call pseudo-instruction that the JIT
understands and handles specially. This section is long and
repetitious, and I can't see a way to make it shorter.
The naming scheme is as follows:
CALL_FN_{W,v}_{v,W,WW,WWW,WWWW,5W,6W,7W,etc}
'W' stands for "word" and 'v' for "void". Hence there are
different macros for calling arity 0, 1, 2, 3, 4, etc, functions,
and for each, the possibility of returning a word-typed result, or
no result.
*/
/* Use these to write the name of your wrapper. NOTE: duplicates
VG_WRAP_FUNCTION_Z{U,Z} in pub_tool_redir.h. */
/* Use an extra level of macroisation so as to ensure the soname/fnname
args are fully macro-expanded before pasting them together. */
#define VG_CONCAT4(_aa,_bb,_cc,_dd) _aa##_bb##_cc##_dd
#define I_WRAP_SONAME_FNNAME_ZU(soname,fnname) \
VG_CONCAT4(_vgwZU_,soname,_,fnname)
#define I_WRAP_SONAME_FNNAME_ZZ(soname,fnname) \
VG_CONCAT4(_vgwZZ_,soname,_,fnname)
/* Use this macro from within a wrapper function to collect the
context (address and possibly other info) of the original function.
Once you have that you can then use it in one of the CALL_FN_
macros. The type of the argument _lval is OrigFn. */
#define VALGRIND_GET_ORIG_FN(_lval) VALGRIND_GET_NR_CONTEXT(_lval)
/* Derivatives of the main macros below, for calling functions
returning void. */
#define CALL_FN_v_v(fnptr) \
do { volatile unsigned long _junk; \
CALL_FN_W_v(_junk,fnptr); } while (0)
#define CALL_FN_v_W(fnptr, arg1) \
do { volatile unsigned long _junk; \
CALL_FN_W_W(_junk,fnptr,arg1); } while (0)
#define CALL_FN_v_WW(fnptr, arg1,arg2) \
do { volatile unsigned long _junk; \
CALL_FN_W_WW(_junk,fnptr,arg1,arg2); } while (0)
#define CALL_FN_v_WWW(fnptr, arg1,arg2,arg3) \
do { volatile unsigned long _junk; \
CALL_FN_W_WWW(_junk,fnptr,arg1,arg2,arg3); } while (0)
#define CALL_FN_v_WWWW(fnptr, arg1,arg2,arg3,arg4) \
do { volatile unsigned long _junk; \
CALL_FN_W_WWWW(_junk,fnptr,arg1,arg2,arg3,arg4); } while (0)
#define CALL_FN_v_5W(fnptr, arg1,arg2,arg3,arg4,arg5) \
do { volatile unsigned long _junk; \
CALL_FN_W_5W(_junk,fnptr,arg1,arg2,arg3,arg4,arg5); } while (0)
#define CALL_FN_v_6W(fnptr, arg1,arg2,arg3,arg4,arg5,arg6) \
do { volatile unsigned long _junk; \
CALL_FN_W_6W(_junk,fnptr,arg1,arg2,arg3,arg4,arg5,arg6); } while (0)
#define CALL_FN_v_7W(fnptr, arg1,arg2,arg3,arg4,arg5,arg6,arg7) \
do { volatile unsigned long _junk; \
CALL_FN_W_7W(_junk,fnptr,arg1,arg2,arg3,arg4,arg5,arg6,arg7); } while (0)
/* ------------------------- x86-{linux,darwin} ---------------- */
#if defined(PLAT_x86_linux) || defined(PLAT_x86_darwin)
/* These regs are trashed by the hidden call. No need to mention eax
as gcc can already see that, plus causes gcc to bomb. */
#define __CALLER_SAVED_REGS /*"eax"*/ "ecx", "edx"
/* These CALL_FN_ macros assume that on x86-linux, sizeof(unsigned
long) == 4. */
#define CALL_FN_W_v(lval, orig) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[1]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
__asm__ volatile( \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_W(lval, orig, arg1) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[2]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
__asm__ volatile( \
"subl $12, %%esp\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $16, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WW(lval, orig, arg1,arg2) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
__asm__ volatile( \
"subl $8, %%esp\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $16, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[4]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
__asm__ volatile( \
"subl $4, %%esp\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $16, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[5]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
__asm__ volatile( \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $16, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[6]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
__asm__ volatile( \
"subl $12, %%esp\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $32, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[7]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
__asm__ volatile( \
"subl $8, %%esp\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $32, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[8]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
__asm__ volatile( \
"subl $4, %%esp\n\t" \
"pushl 28(%%eax)\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $32, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[9]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
__asm__ volatile( \
"pushl 32(%%eax)\n\t" \
"pushl 28(%%eax)\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $32, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[10]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
__asm__ volatile( \
"subl $12, %%esp\n\t" \
"pushl 36(%%eax)\n\t" \
"pushl 32(%%eax)\n\t" \
"pushl 28(%%eax)\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $48, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[11]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
__asm__ volatile( \
"subl $8, %%esp\n\t" \
"pushl 40(%%eax)\n\t" \
"pushl 36(%%eax)\n\t" \
"pushl 32(%%eax)\n\t" \
"pushl 28(%%eax)\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $48, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5, \
arg6,arg7,arg8,arg9,arg10, \
arg11) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[12]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
_argvec[11] = (unsigned long)(arg11); \
__asm__ volatile( \
"subl $4, %%esp\n\t" \
"pushl 44(%%eax)\n\t" \
"pushl 40(%%eax)\n\t" \
"pushl 36(%%eax)\n\t" \
"pushl 32(%%eax)\n\t" \
"pushl 28(%%eax)\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $48, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5, \
arg6,arg7,arg8,arg9,arg10, \
arg11,arg12) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[13]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
_argvec[11] = (unsigned long)(arg11); \
_argvec[12] = (unsigned long)(arg12); \
__asm__ volatile( \
"pushl 48(%%eax)\n\t" \
"pushl 44(%%eax)\n\t" \
"pushl 40(%%eax)\n\t" \
"pushl 36(%%eax)\n\t" \
"pushl 32(%%eax)\n\t" \
"pushl 28(%%eax)\n\t" \
"pushl 24(%%eax)\n\t" \
"pushl 20(%%eax)\n\t" \
"pushl 16(%%eax)\n\t" \
"pushl 12(%%eax)\n\t" \
"pushl 8(%%eax)\n\t" \
"pushl 4(%%eax)\n\t" \
"movl (%%eax), %%eax\n\t" /* target->%eax */ \
VALGRIND_CALL_NOREDIR_EAX \
"addl $48, %%esp\n" \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#endif /* PLAT_x86_linux || PLAT_x86_darwin */
/* ------------------------ amd64-{linux,darwin} --------------- */
#if defined(PLAT_amd64_linux) || defined(PLAT_amd64_darwin)
/* ARGREGS: rdi rsi rdx rcx r8 r9 (the rest on stack in R-to-L order) */
/* These regs are trashed by the hidden call. */
#define __CALLER_SAVED_REGS /*"rax",*/ "rcx", "rdx", "rsi", \
"rdi", "r8", "r9", "r10", "r11"
/* This is all pretty complex. It's so as to make stack unwinding
work reliably. See bug 243270. The basic problem is the sub and
add of 128 of %rsp in all of the following macros. If gcc believes
the CFA is in %rsp, then unwinding may fail, because what's at the
CFA is not what gcc "expected" when it constructs the CFIs for the
places where the macros are instantiated.
But we can't just add a CFI annotation to increase the CFA offset
by 128, to match the sub of 128 from %rsp, because we don't know
whether gcc has chosen %rsp as the CFA at that point, or whether it
has chosen some other register (eg, %rbp). In the latter case,
adding a CFI annotation to change the CFA offset is simply wrong.
So the solution is to get hold of the CFA using
__builtin_dwarf_cfa(), put it in a known register, and add a
CFI annotation to say what the register is. We choose %rbp for
this (perhaps perversely), because:
(1) %rbp is already subject to unwinding. If a new register was
chosen then the unwinder would have to unwind it in all stack
traces, which is expensive, and
(2) %rbp is already subject to precise exception updates in the
JIT. If a new register was chosen, we'd have to have precise
exceptions for it too, which reduces performance of the
generated code.
However .. one extra complication. We can't just whack the result
of __builtin_dwarf_cfa() into %rbp and then add %rbp to the
list of trashed registers at the end of the inline assembly
fragments; gcc won't allow %rbp to appear in that list. Hence
instead we need to stash %rbp in %r15 for the duration of the asm,
and say that %r15 is trashed instead. gcc seems happy to go with
that.
Oh .. and this all needs to be conditionalised so that it is
unchanged from before this commit, when compiled with older gccs
that don't support __builtin_dwarf_cfa. Furthermore, since
this header file is freestanding, it has to be independent of
config.h, and so the following conditionalisation cannot depend on
configure time checks.
Although it's not clear from
'defined(__GNUC__) && defined(__GCC_HAVE_DWARF2_CFI_ASM)',
this expression excludes Darwin.
.cfi directives in Darwin assembly appear to be completely
different and I haven't investigated how they work.
For even more entertainment value, note we have to use the
completely undocumented __builtin_dwarf_cfa(), which appears to
really compute the CFA, whereas __builtin_frame_address(0) claims
to but actually doesn't. See
https://bugs.kde.org/show_bug.cgi?id=243270#c47
*/
#if defined(__GNUC__) && defined(__GCC_HAVE_DWARF2_CFI_ASM)
# define __FRAME_POINTER \
,"r"(__builtin_dwarf_cfa())
# define VALGRIND_CFI_PROLOGUE \
"movq %%rbp, %%r15\n\t" \
"movq %2, %%rbp\n\t" \
".cfi_remember_state\n\t" \
".cfi_def_cfa rbp, 0\n\t"
# define VALGRIND_CFI_EPILOGUE \
"movq %%r15, %%rbp\n\t" \
".cfi_restore_state\n\t"
#else
# define __FRAME_POINTER
# define VALGRIND_CFI_PROLOGUE
# define VALGRIND_CFI_EPILOGUE
#endif
/* These CALL_FN_ macros assume that on amd64-linux, sizeof(unsigned
long) == 8. */
/* NB 9 Sept 07. There is a nasty kludge here in all these CALL_FN_
macros. In order not to trash the stack redzone, we need to drop
%rsp by 128 before the hidden call, and restore afterwards. The
nastyness is that it is only by luck that the stack still appears
to be unwindable during the hidden call - since then the behaviour
of any routine using this macro does not match what the CFI data
says. Sigh.
Why is this important? Imagine that a wrapper has a stack
allocated local, and passes to the hidden call, a pointer to it.
Because gcc does not know about the hidden call, it may allocate
that local in the redzone. Unfortunately the hidden call may then
trash it before it comes to use it. So we must step clear of the
redzone, for the duration of the hidden call, to make it safe.
Probably the same problem afflicts the other redzone-style ABIs too
(ppc64-linux); but for those, the stack is
self describing (none of this CFI nonsense) so at least messing
with the stack pointer doesn't give a danger of non-unwindable
stack. */
#define CALL_FN_W_v(lval, orig) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[1]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_W(lval, orig, arg1) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[2]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WW(lval, orig, arg1,arg2) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[4]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[5]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[6]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[7]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[8]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $136,%%rsp\n\t" \
"pushq 56(%%rax)\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $8, %%rsp\n" \
"addq $136,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[9]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"pushq 64(%%rax)\n\t" \
"pushq 56(%%rax)\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $16, %%rsp\n" \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[10]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $136,%%rsp\n\t" \
"pushq 72(%%rax)\n\t" \
"pushq 64(%%rax)\n\t" \
"pushq 56(%%rax)\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $24, %%rsp\n" \
"addq $136,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[11]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"pushq 80(%%rax)\n\t" \
"pushq 72(%%rax)\n\t" \
"pushq 64(%%rax)\n\t" \
"pushq 56(%%rax)\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $32, %%rsp\n" \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10,arg11) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[12]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
_argvec[11] = (unsigned long)(arg11); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $136,%%rsp\n\t" \
"pushq 88(%%rax)\n\t" \
"pushq 80(%%rax)\n\t" \
"pushq 72(%%rax)\n\t" \
"pushq 64(%%rax)\n\t" \
"pushq 56(%%rax)\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $40, %%rsp\n" \
"addq $136,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10,arg11,arg12) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[13]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
_argvec[11] = (unsigned long)(arg11); \
_argvec[12] = (unsigned long)(arg12); \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"subq $128,%%rsp\n\t" \
"pushq 96(%%rax)\n\t" \
"pushq 88(%%rax)\n\t" \
"pushq 80(%%rax)\n\t" \
"pushq 72(%%rax)\n\t" \
"pushq 64(%%rax)\n\t" \
"pushq 56(%%rax)\n\t" \
"movq 48(%%rax), %%r9\n\t" \
"movq 40(%%rax), %%r8\n\t" \
"movq 32(%%rax), %%rcx\n\t" \
"movq 24(%%rax), %%rdx\n\t" \
"movq 16(%%rax), %%rsi\n\t" \
"movq 8(%%rax), %%rdi\n\t" \
"movq (%%rax), %%rax\n\t" /* target->%rax */ \
VALGRIND_CALL_NOREDIR_RAX \
"addq $48, %%rsp\n" \
"addq $128,%%rsp\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=a" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS, "r15" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#endif /* PLAT_amd64_linux || PLAT_amd64_darwin */
/* ------------------------ ppc32-linux ------------------------ */
#if defined(PLAT_ppc32_linux)
/* This is useful for finding out about the on-stack stuff:
extern int f9 ( int,int,int,int,int,int,int,int,int );
extern int f10 ( int,int,int,int,int,int,int,int,int,int );
extern int f11 ( int,int,int,int,int,int,int,int,int,int,int );
extern int f12 ( int,int,int,int,int,int,int,int,int,int,int,int );
int g9 ( void ) {
return f9(11,22,33,44,55,66,77,88,99);
}
int g10 ( void ) {
return f10(11,22,33,44,55,66,77,88,99,110);
}
int g11 ( void ) {
return f11(11,22,33,44,55,66,77,88,99,110,121);
}
int g12 ( void ) {
return f12(11,22,33,44,55,66,77,88,99,110,121,132);
}
*/
/* ARGREGS: r3 r4 r5 r6 r7 r8 r9 r10 (the rest on stack somewhere) */
/* These regs are trashed by the hidden call. */
#define __CALLER_SAVED_REGS \
"lr", "ctr", "xer", \
"cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \
"r0", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", \
"r11", "r12", "r13"
/* These CALL_FN_ macros assume that on ppc32-linux,
sizeof(unsigned long) == 4. */
#define CALL_FN_W_v(lval, orig) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[1]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_W(lval, orig, arg1) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[2]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WW(lval, orig, arg1,arg2) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[4]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[5]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[6]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[7]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[8]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 9,28(11)\n\t" \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[9]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 9,28(11)\n\t" \
"lwz 10,32(11)\n\t" /* arg8->r10 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[10]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"addi 1,1,-16\n\t" \
/* arg9 */ \
"lwz 3,36(11)\n\t" \
"stw 3,8(1)\n\t" \
/* args1-8 */ \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 9,28(11)\n\t" \
"lwz 10,32(11)\n\t" /* arg8->r10 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"addi 1,1,16\n\t" \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[11]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
_argvec[10] = (unsigned long)arg10; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"addi 1,1,-16\n\t" \
/* arg10 */ \
"lwz 3,40(11)\n\t" \
"stw 3,12(1)\n\t" \
/* arg9 */ \
"lwz 3,36(11)\n\t" \
"stw 3,8(1)\n\t" \
/* args1-8 */ \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 9,28(11)\n\t" \
"lwz 10,32(11)\n\t" /* arg8->r10 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"addi 1,1,16\n\t" \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10,arg11) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[12]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
_argvec[10] = (unsigned long)arg10; \
_argvec[11] = (unsigned long)arg11; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"addi 1,1,-32\n\t" \
/* arg11 */ \
"lwz 3,44(11)\n\t" \
"stw 3,16(1)\n\t" \
/* arg10 */ \
"lwz 3,40(11)\n\t" \
"stw 3,12(1)\n\t" \
/* arg9 */ \
"lwz 3,36(11)\n\t" \
"stw 3,8(1)\n\t" \
/* args1-8 */ \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 9,28(11)\n\t" \
"lwz 10,32(11)\n\t" /* arg8->r10 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"addi 1,1,32\n\t" \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10,arg11,arg12) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[13]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
_argvec[10] = (unsigned long)arg10; \
_argvec[11] = (unsigned long)arg11; \
_argvec[12] = (unsigned long)arg12; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"addi 1,1,-32\n\t" \
/* arg12 */ \
"lwz 3,48(11)\n\t" \
"stw 3,20(1)\n\t" \
/* arg11 */ \
"lwz 3,44(11)\n\t" \
"stw 3,16(1)\n\t" \
/* arg10 */ \
"lwz 3,40(11)\n\t" \
"stw 3,12(1)\n\t" \
/* arg9 */ \
"lwz 3,36(11)\n\t" \
"stw 3,8(1)\n\t" \
/* args1-8 */ \
"lwz 3,4(11)\n\t" /* arg1->r3 */ \
"lwz 4,8(11)\n\t" \
"lwz 5,12(11)\n\t" \
"lwz 6,16(11)\n\t" /* arg4->r6 */ \
"lwz 7,20(11)\n\t" \
"lwz 8,24(11)\n\t" \
"lwz 9,28(11)\n\t" \
"lwz 10,32(11)\n\t" /* arg8->r10 */ \
"lwz 11,0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"addi 1,1,32\n\t" \
"mr %0,3" \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#endif /* PLAT_ppc32_linux */
/* ------------------------ ppc64-linux ------------------------ */
#if defined(PLAT_ppc64_linux)
/* ARGREGS: r3 r4 r5 r6 r7 r8 r9 r10 (the rest on stack somewhere) */
/* These regs are trashed by the hidden call. */
#define __CALLER_SAVED_REGS \
"lr", "ctr", "xer", \
"cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \
"r0", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", \
"r11", "r12", "r13"
/* These CALL_FN_ macros assume that on ppc64-linux, sizeof(unsigned
long) == 8. */
#define CALL_FN_W_v(lval, orig) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+0]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_W(lval, orig, arg1) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+1]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WW(lval, orig, arg1,arg2) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+2]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+3]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+4]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+5]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+6]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+7]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
_argvec[2+7] = (unsigned long)arg7; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 9, 56(11)\n\t" /* arg7->r9 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+8]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
_argvec[2+7] = (unsigned long)arg7; \
_argvec[2+8] = (unsigned long)arg8; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 9, 56(11)\n\t" /* arg7->r9 */ \
"ld 10, 64(11)\n\t" /* arg8->r10 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)" /* restore tocptr */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+9]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
_argvec[2+7] = (unsigned long)arg7; \
_argvec[2+8] = (unsigned long)arg8; \
_argvec[2+9] = (unsigned long)arg9; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"addi 1,1,-128\n\t" /* expand stack frame */ \
/* arg9 */ \
"ld 3,72(11)\n\t" \
"std 3,112(1)\n\t" \
/* args1-8 */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 9, 56(11)\n\t" /* arg7->r9 */ \
"ld 10, 64(11)\n\t" /* arg8->r10 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)\n\t" /* restore tocptr */ \
"addi 1,1,128" /* restore frame */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+10]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
_argvec[2+7] = (unsigned long)arg7; \
_argvec[2+8] = (unsigned long)arg8; \
_argvec[2+9] = (unsigned long)arg9; \
_argvec[2+10] = (unsigned long)arg10; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"addi 1,1,-128\n\t" /* expand stack frame */ \
/* arg10 */ \
"ld 3,80(11)\n\t" \
"std 3,120(1)\n\t" \
/* arg9 */ \
"ld 3,72(11)\n\t" \
"std 3,112(1)\n\t" \
/* args1-8 */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 9, 56(11)\n\t" /* arg7->r9 */ \
"ld 10, 64(11)\n\t" /* arg8->r10 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)\n\t" /* restore tocptr */ \
"addi 1,1,128" /* restore frame */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10,arg11) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+11]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
_argvec[2+7] = (unsigned long)arg7; \
_argvec[2+8] = (unsigned long)arg8; \
_argvec[2+9] = (unsigned long)arg9; \
_argvec[2+10] = (unsigned long)arg10; \
_argvec[2+11] = (unsigned long)arg11; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"addi 1,1,-144\n\t" /* expand stack frame */ \
/* arg11 */ \
"ld 3,88(11)\n\t" \
"std 3,128(1)\n\t" \
/* arg10 */ \
"ld 3,80(11)\n\t" \
"std 3,120(1)\n\t" \
/* arg9 */ \
"ld 3,72(11)\n\t" \
"std 3,112(1)\n\t" \
/* args1-8 */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 9, 56(11)\n\t" /* arg7->r9 */ \
"ld 10, 64(11)\n\t" /* arg8->r10 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)\n\t" /* restore tocptr */ \
"addi 1,1,144" /* restore frame */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10,arg11,arg12) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3+12]; \
volatile unsigned long _res; \
/* _argvec[0] holds current r2 across the call */ \
_argvec[1] = (unsigned long)_orig.r2; \
_argvec[2] = (unsigned long)_orig.nraddr; \
_argvec[2+1] = (unsigned long)arg1; \
_argvec[2+2] = (unsigned long)arg2; \
_argvec[2+3] = (unsigned long)arg3; \
_argvec[2+4] = (unsigned long)arg4; \
_argvec[2+5] = (unsigned long)arg5; \
_argvec[2+6] = (unsigned long)arg6; \
_argvec[2+7] = (unsigned long)arg7; \
_argvec[2+8] = (unsigned long)arg8; \
_argvec[2+9] = (unsigned long)arg9; \
_argvec[2+10] = (unsigned long)arg10; \
_argvec[2+11] = (unsigned long)arg11; \
_argvec[2+12] = (unsigned long)arg12; \
__asm__ volatile( \
"mr 11,%1\n\t" \
"std 2,-16(11)\n\t" /* save tocptr */ \
"ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \
"addi 1,1,-144\n\t" /* expand stack frame */ \
/* arg12 */ \
"ld 3,96(11)\n\t" \
"std 3,136(1)\n\t" \
/* arg11 */ \
"ld 3,88(11)\n\t" \
"std 3,128(1)\n\t" \
/* arg10 */ \
"ld 3,80(11)\n\t" \
"std 3,120(1)\n\t" \
/* arg9 */ \
"ld 3,72(11)\n\t" \
"std 3,112(1)\n\t" \
/* args1-8 */ \
"ld 3, 8(11)\n\t" /* arg1->r3 */ \
"ld 4, 16(11)\n\t" /* arg2->r4 */ \
"ld 5, 24(11)\n\t" /* arg3->r5 */ \
"ld 6, 32(11)\n\t" /* arg4->r6 */ \
"ld 7, 40(11)\n\t" /* arg5->r7 */ \
"ld 8, 48(11)\n\t" /* arg6->r8 */ \
"ld 9, 56(11)\n\t" /* arg7->r9 */ \
"ld 10, 64(11)\n\t" /* arg8->r10 */ \
"ld 11, 0(11)\n\t" /* target->r11 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \
"mr 11,%1\n\t" \
"mr %0,3\n\t" \
"ld 2,-16(11)\n\t" /* restore tocptr */ \
"addi 1,1,144" /* restore frame */ \
: /*out*/ "=r" (_res) \
: /*in*/ "r" (&_argvec[2]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#endif /* PLAT_ppc64_linux */
/* ------------------------- arm-linux ------------------------- */
#if defined(PLAT_arm_linux)
/* These regs are trashed by the hidden call. */
#define __CALLER_SAVED_REGS "r0", "r1", "r2", "r3","r4","r14"
/* These CALL_FN_ macros assume that on arm-linux, sizeof(unsigned
long) == 4. */
#define CALL_FN_W_v(lval, orig) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[1]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
__asm__ volatile( \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"mov %0, r0\n" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_W(lval, orig, arg1) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[2]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
__asm__ volatile( \
"ldr r0, [%1, #4] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"mov %0, r0\n" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WW(lval, orig, arg1,arg2) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
__asm__ volatile( \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"mov %0, r0\n" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[4]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
__asm__ volatile( \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"mov %0, r0\n" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[5]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
__asm__ volatile( \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[6]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
__asm__ volatile( \
"ldr r0, [%1, #20] \n\t" \
"push {r0} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #4 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[7]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
__asm__ volatile( \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"push {r0, r1} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #8 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[8]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
__asm__ volatile( \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"ldr r2, [%1, #28] \n\t" \
"push {r0, r1, r2} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #12 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[9]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
__asm__ volatile( \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"ldr r2, [%1, #28] \n\t" \
"ldr r3, [%1, #32] \n\t" \
"push {r0, r1, r2, r3} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #16 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[10]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
__asm__ volatile( \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"ldr r2, [%1, #28] \n\t" \
"ldr r3, [%1, #32] \n\t" \
"ldr r4, [%1, #36] \n\t" \
"push {r0, r1, r2, r3, r4} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #20 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \
arg7,arg8,arg9,arg10) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[11]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
__asm__ volatile( \
"ldr r0, [%1, #40] \n\t" \
"push {r0} \n\t" \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"ldr r2, [%1, #28] \n\t" \
"ldr r3, [%1, #32] \n\t" \
"ldr r4, [%1, #36] \n\t" \
"push {r0, r1, r2, r3, r4} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #24 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5, \
arg6,arg7,arg8,arg9,arg10, \
arg11) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[12]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
_argvec[11] = (unsigned long)(arg11); \
__asm__ volatile( \
"ldr r0, [%1, #40] \n\t" \
"ldr r1, [%1, #44] \n\t" \
"push {r0, r1} \n\t" \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"ldr r2, [%1, #28] \n\t" \
"ldr r3, [%1, #32] \n\t" \
"ldr r4, [%1, #36] \n\t" \
"push {r0, r1, r2, r3, r4} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #28 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory",__CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5, \
arg6,arg7,arg8,arg9,arg10, \
arg11,arg12) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[13]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)(arg1); \
_argvec[2] = (unsigned long)(arg2); \
_argvec[3] = (unsigned long)(arg3); \
_argvec[4] = (unsigned long)(arg4); \
_argvec[5] = (unsigned long)(arg5); \
_argvec[6] = (unsigned long)(arg6); \
_argvec[7] = (unsigned long)(arg7); \
_argvec[8] = (unsigned long)(arg8); \
_argvec[9] = (unsigned long)(arg9); \
_argvec[10] = (unsigned long)(arg10); \
_argvec[11] = (unsigned long)(arg11); \
_argvec[12] = (unsigned long)(arg12); \
__asm__ volatile( \
"ldr r0, [%1, #40] \n\t" \
"ldr r1, [%1, #44] \n\t" \
"ldr r2, [%1, #48] \n\t" \
"push {r0, r1, r2} \n\t" \
"ldr r0, [%1, #20] \n\t" \
"ldr r1, [%1, #24] \n\t" \
"ldr r2, [%1, #28] \n\t" \
"ldr r3, [%1, #32] \n\t" \
"ldr r4, [%1, #36] \n\t" \
"push {r0, r1, r2, r3, r4} \n\t" \
"ldr r0, [%1, #4] \n\t" \
"ldr r1, [%1, #8] \n\t" \
"ldr r2, [%1, #12] \n\t" \
"ldr r3, [%1, #16] \n\t" \
"ldr r4, [%1] \n\t" /* target->r4 */ \
VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R4 \
"add sp, sp, #32 \n\t" \
"mov %0, r0" \
: /*out*/ "=r" (_res) \
: /*in*/ "0" (&_argvec[0]) \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#endif /* PLAT_arm_linux */
/* ------------------------- s390x-linux ------------------------- */
#if defined(PLAT_s390x_linux)
/* Similar workaround as amd64 (see above), but we use r11 as frame
pointer and save the old r11 in r7. r11 might be used for
argvec, therefore we copy argvec in r1 since r1 is clobbered
after the call anyway. */
#if defined(__GNUC__) && defined(__GCC_HAVE_DWARF2_CFI_ASM)
# define __FRAME_POINTER \
,"d"(__builtin_dwarf_cfa())
# define VALGRIND_CFI_PROLOGUE \
".cfi_remember_state\n\t" \
"lgr 1,%1\n\t" /* copy the argvec pointer in r1 */ \
"lgr 7,11\n\t" \
"lgr 11,%2\n\t" \
".cfi_def_cfa r11, 0\n\t"
# define VALGRIND_CFI_EPILOGUE \
"lgr 11, 7\n\t" \
".cfi_restore_state\n\t"
#else
# define __FRAME_POINTER
# define VALGRIND_CFI_PROLOGUE \
"lgr 1,%1\n\t"
# define VALGRIND_CFI_EPILOGUE
#endif
/* These regs are trashed by the hidden call. Note that we overwrite
r14 in s390_irgen_noredir (VEX/priv/guest_s390_irgen.c) to give the
function a proper return address. All others are ABI defined call
clobbers. */
#define __CALLER_SAVED_REGS "0","1","2","3","4","5","14", \
"f0","f1","f2","f3","f4","f5","f6","f7"
#define CALL_FN_W_v(lval, orig) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[1]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-160\n\t" \
"lg 1, 0(1)\n\t" /* target->r1 */ \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,160\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "d" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
/* The call abi has the arguments in r2-r6 and stack */
#define CALL_FN_W_W(lval, orig, arg1) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[2]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-160\n\t" \
"lg 2, 8(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,160\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WW(lval, orig, arg1, arg2) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[3]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-160\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,160\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWW(lval, orig, arg1, arg2, arg3) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[4]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-160\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,160\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_WWWW(lval, orig, arg1, arg2, arg3, arg4) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[5]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-160\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,160\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_5W(lval, orig, arg1, arg2, arg3, arg4, arg5) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[6]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-160\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,160\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_6W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[7]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-168\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,168\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_7W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6, arg7) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[8]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-176\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"mvc 168(8,15), 56(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,176\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_8W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6, arg7 ,arg8) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[9]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-184\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"mvc 168(8,15), 56(1)\n\t" \
"mvc 176(8,15), 64(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,184\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_9W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6, arg7 ,arg8, arg9) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[10]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-192\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"mvc 168(8,15), 56(1)\n\t" \
"mvc 176(8,15), 64(1)\n\t" \
"mvc 184(8,15), 72(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,192\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_10W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6, arg7 ,arg8, arg9, arg10) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[11]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
_argvec[10] = (unsigned long)arg10; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-200\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"mvc 168(8,15), 56(1)\n\t" \
"mvc 176(8,15), 64(1)\n\t" \
"mvc 184(8,15), 72(1)\n\t" \
"mvc 192(8,15), 80(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,200\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_11W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6, arg7 ,arg8, arg9, arg10, arg11) \
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[12]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
_argvec[10] = (unsigned long)arg10; \
_argvec[11] = (unsigned long)arg11; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-208\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"mvc 168(8,15), 56(1)\n\t" \
"mvc 176(8,15), 64(1)\n\t" \
"mvc 184(8,15), 72(1)\n\t" \
"mvc 192(8,15), 80(1)\n\t" \
"mvc 200(8,15), 88(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,208\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#define CALL_FN_W_12W(lval, orig, arg1, arg2, arg3, arg4, arg5, \
arg6, arg7 ,arg8, arg9, arg10, arg11, arg12)\
do { \
volatile OrigFn _orig = (orig); \
volatile unsigned long _argvec[13]; \
volatile unsigned long _res; \
_argvec[0] = (unsigned long)_orig.nraddr; \
_argvec[1] = (unsigned long)arg1; \
_argvec[2] = (unsigned long)arg2; \
_argvec[3] = (unsigned long)arg3; \
_argvec[4] = (unsigned long)arg4; \
_argvec[5] = (unsigned long)arg5; \
_argvec[6] = (unsigned long)arg6; \
_argvec[7] = (unsigned long)arg7; \
_argvec[8] = (unsigned long)arg8; \
_argvec[9] = (unsigned long)arg9; \
_argvec[10] = (unsigned long)arg10; \
_argvec[11] = (unsigned long)arg11; \
_argvec[12] = (unsigned long)arg12; \
__asm__ volatile( \
VALGRIND_CFI_PROLOGUE \
"aghi 15,-216\n\t" \
"lg 2, 8(1)\n\t" \
"lg 3,16(1)\n\t" \
"lg 4,24(1)\n\t" \
"lg 5,32(1)\n\t" \
"lg 6,40(1)\n\t" \
"mvc 160(8,15), 48(1)\n\t" \
"mvc 168(8,15), 56(1)\n\t" \
"mvc 176(8,15), 64(1)\n\t" \
"mvc 184(8,15), 72(1)\n\t" \
"mvc 192(8,15), 80(1)\n\t" \
"mvc 200(8,15), 88(1)\n\t" \
"mvc 208(8,15), 96(1)\n\t" \
"lg 1, 0(1)\n\t" \
VALGRIND_CALL_NOREDIR_R1 \
"lgr %0, 2\n\t" \
"aghi 15,216\n\t" \
VALGRIND_CFI_EPILOGUE \
: /*out*/ "=d" (_res) \
: /*in*/ "a" (&_argvec[0]) __FRAME_POINTER \
: /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
); \
lval = (__typeof__(lval)) _res; \
} while (0)
#endif /* PLAT_s390x_linux */
/* ------------------------------------------------------------------ */
/* ARCHITECTURE INDEPENDENT MACROS for CLIENT REQUESTS. */
/* */
/* ------------------------------------------------------------------ */
/* Some request codes. There are many more of these, but most are not
exposed to end-user view. These are the public ones, all of the
form 0x1000 + small_number.
Core ones are in the range 0x00000000--0x0000ffff. The non-public
ones start at 0x2000.
*/
/* These macros are used by tools -- they must be public, but don't
embed them into other programs. */
#define VG_USERREQ_TOOL_BASE(a,b) \
((unsigned int)(((a)&0xff) << 24 | ((b)&0xff) << 16))
#define VG_IS_TOOL_USERREQ(a, b, v) \
(VG_USERREQ_TOOL_BASE(a,b) == ((v) & 0xffff0000))
/* !! ABIWARNING !! ABIWARNING !! ABIWARNING !! ABIWARNING !!
This enum comprises an ABI exported by Valgrind to programs
which use client requests. DO NOT CHANGE THE ORDER OF THESE
ENTRIES, NOR DELETE ANY -- add new ones at the end. */
typedef
enum { VG_USERREQ__RUNNING_ON_VALGRIND = 0x1001,
VG_USERREQ__DISCARD_TRANSLATIONS = 0x1002,
/* These allow any function to be called from the simulated
CPU but run on the real CPU. Nb: the first arg passed to
the function is always the ThreadId of the running
thread! So CLIENT_CALL0 actually requires a 1 arg
function, etc. */
VG_USERREQ__CLIENT_CALL0 = 0x1101,
VG_USERREQ__CLIENT_CALL1 = 0x1102,
VG_USERREQ__CLIENT_CALL2 = 0x1103,
VG_USERREQ__CLIENT_CALL3 = 0x1104,
/* Can be useful in regression testing suites -- eg. can
send Valgrind's output to /dev/null and still count
errors. */
VG_USERREQ__COUNT_ERRORS = 0x1201,
/* Allows a string (gdb monitor command) to be passed to the tool
Used for interaction with vgdb/gdb */
VG_USERREQ__GDB_MONITOR_COMMAND = 0x1202,
/* These are useful and can be interpreted by any tool that
tracks malloc() et al, by using vg_replace_malloc.c. */
VG_USERREQ__MALLOCLIKE_BLOCK = 0x1301,
VG_USERREQ__RESIZEINPLACE_BLOCK = 0x130b,
VG_USERREQ__FREELIKE_BLOCK = 0x1302,
/* Memory pool support. */
VG_USERREQ__CREATE_MEMPOOL = 0x1303,
VG_USERREQ__DESTROY_MEMPOOL = 0x1304,
VG_USERREQ__MEMPOOL_ALLOC = 0x1305,
VG_USERREQ__MEMPOOL_FREE = 0x1306,
VG_USERREQ__MEMPOOL_TRIM = 0x1307,
VG_USERREQ__MOVE_MEMPOOL = 0x1308,
VG_USERREQ__MEMPOOL_CHANGE = 0x1309,
VG_USERREQ__MEMPOOL_EXISTS = 0x130a,
/* Allow printfs to valgrind log. */
/* The first two pass the va_list argument by value, which
assumes it is the same size as or smaller than a UWord,
which generally isn't the case. Hence are deprecated.
The second two pass the vargs by reference and so are
immune to this problem. */
/* both :: char* fmt, va_list vargs (DEPRECATED) */
VG_USERREQ__PRINTF = 0x1401,
VG_USERREQ__PRINTF_BACKTRACE = 0x1402,
/* both :: char* fmt, va_list* vargs */
VG_USERREQ__PRINTF_VALIST_BY_REF = 0x1403,
VG_USERREQ__PRINTF_BACKTRACE_VALIST_BY_REF = 0x1404,
/* Stack support. */
VG_USERREQ__STACK_REGISTER = 0x1501,
VG_USERREQ__STACK_DEREGISTER = 0x1502,
VG_USERREQ__STACK_CHANGE = 0x1503,
/* Wine support */
VG_USERREQ__LOAD_PDB_DEBUGINFO = 0x1601,
/* Querying of debug info. */
VG_USERREQ__MAP_IP_TO_SRCLOC = 0x1701
} Vg_ClientRequest;
#if !defined(__GNUC__)
# define __extension__ /* */
#endif
/* Returns the number of Valgrinds this code is running under. That
is, 0 if running natively, 1 if running under Valgrind, 2 if
running under Valgrind which is running under another Valgrind,
etc. */
#define RUNNING_ON_VALGRIND \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* if not */, \
VG_USERREQ__RUNNING_ON_VALGRIND, \
0, 0, 0, 0, 0) \
/* Discard translation of code in the range [_qzz_addr .. _qzz_addr +
_qzz_len - 1]. Useful if you are debugging a JITter or some such,
since it provides a way to make sure valgrind will retranslate the
invalidated area. Returns no value. */
#define VALGRIND_DISCARD_TRANSLATIONS(_qzz_addr,_qzz_len) \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__DISCARD_TRANSLATIONS, \
_qzz_addr, _qzz_len, 0, 0, 0)
/* These requests are for getting Valgrind itself to print something.
Possibly with a backtrace. This is a really ugly hack. The return value
is the number of characters printed, excluding the "**<pid>** " part at the
start and the backtrace (if present). */
#if defined(__GNUC__) || defined(__INTEL_COMPILER)
/* Modern GCC will optimize the static routine out if unused,
and unused attribute will shut down warnings about it. */
static int VALGRIND_PRINTF(const char *format, ...)
__attribute__((format(__printf__, 1, 2), __unused__));
#endif
static int
#if defined(_MSC_VER)
__inline
#endif
VALGRIND_PRINTF(const char *format, ...)
{
#if defined(NVALGRIND)
return 0;
#else /* NVALGRIND */
#if defined(_MSC_VER)
uintptr_t _qzz_res;
#else
unsigned long _qzz_res;
#endif
va_list vargs;
va_start(vargs, format);
#if defined(_MSC_VER)
_qzz_res = VALGRIND_DO_CLIENT_REQUEST_EXPR(0,
VG_USERREQ__PRINTF_VALIST_BY_REF,
(uintptr_t)format,
(uintptr_t)&vargs,
0, 0, 0);
#else
_qzz_res = VALGRIND_DO_CLIENT_REQUEST_EXPR(0,
VG_USERREQ__PRINTF_VALIST_BY_REF,
(unsigned long)format,
(unsigned long)&vargs,
0, 0, 0);
#endif
va_end(vargs);
return (int)_qzz_res;
#endif /* NVALGRIND */
}
#if defined(__GNUC__) || defined(__INTEL_COMPILER)
static int VALGRIND_PRINTF_BACKTRACE(const char *format, ...)
__attribute__((format(__printf__, 1, 2), __unused__));
#endif
static int
#if defined(_MSC_VER)
__inline
#endif
VALGRIND_PRINTF_BACKTRACE(const char *format, ...)
{
#if defined(NVALGRIND)
return 0;
#else /* NVALGRIND */
#if defined(_MSC_VER)
uintptr_t _qzz_res;
#else
unsigned long _qzz_res;
#endif
va_list vargs;
va_start(vargs, format);
#if defined(_MSC_VER)
_qzz_res = VALGRIND_DO_CLIENT_REQUEST_EXPR(0,
VG_USERREQ__PRINTF_BACKTRACE_VALIST_BY_REF,
(uintptr_t)format,
(uintptr_t)&vargs,
0, 0, 0);
#else
_qzz_res = VALGRIND_DO_CLIENT_REQUEST_EXPR(0,
VG_USERREQ__PRINTF_BACKTRACE_VALIST_BY_REF,
(unsigned long)format,
(unsigned long)&vargs,
0, 0, 0);
#endif
va_end(vargs);
return (int)_qzz_res;
#endif /* NVALGRIND */
}
/* These requests allow control to move from the simulated CPU to the
real CPU, calling an arbitary function.
Note that the current ThreadId is inserted as the first argument.
So this call:
VALGRIND_NON_SIMD_CALL2(f, arg1, arg2)
requires f to have this signature:
Word f(Word tid, Word arg1, Word arg2)
where "Word" is a word-sized type.
Note that these client requests are not entirely reliable. For example,
if you call a function with them that subsequently calls printf(),
there's a high chance Valgrind will crash. Generally, your prospects of
these working are made higher if the called function does not refer to
any global variables, and does not refer to any libc or other functions
(printf et al). Any kind of entanglement with libc or dynamic linking is
likely to have a bad outcome, for tricky reasons which we've grappled
with a lot in the past.
*/
#define VALGRIND_NON_SIMD_CALL0(_qyy_fn) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \
VG_USERREQ__CLIENT_CALL0, \
_qyy_fn, \
0, 0, 0, 0)
#define VALGRIND_NON_SIMD_CALL1(_qyy_fn, _qyy_arg1) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \
VG_USERREQ__CLIENT_CALL1, \
_qyy_fn, \
_qyy_arg1, 0, 0, 0)
#define VALGRIND_NON_SIMD_CALL2(_qyy_fn, _qyy_arg1, _qyy_arg2) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \
VG_USERREQ__CLIENT_CALL2, \
_qyy_fn, \
_qyy_arg1, _qyy_arg2, 0, 0)
#define VALGRIND_NON_SIMD_CALL3(_qyy_fn, _qyy_arg1, _qyy_arg2, _qyy_arg3) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \
VG_USERREQ__CLIENT_CALL3, \
_qyy_fn, \
_qyy_arg1, _qyy_arg2, \
_qyy_arg3, 0)
/* Counts the number of errors that have been recorded by a tool. Nb:
the tool must record the errors with VG_(maybe_record_error)() or
VG_(unique_error)() for them to be counted. */
#define VALGRIND_COUNT_ERRORS \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR( \
0 /* default return */, \
VG_USERREQ__COUNT_ERRORS, \
0, 0, 0, 0, 0)
/* Several Valgrind tools (Memcheck, Massif, Helgrind, DRD) rely on knowing
when heap blocks are allocated in order to give accurate results. This
happens automatically for the standard allocator functions such as
malloc(), calloc(), realloc(), memalign(), new, new[], free(), delete,
delete[], etc.
But if your program uses a custom allocator, this doesn't automatically
happen, and Valgrind will not do as well. For example, if you allocate
superblocks with mmap() and then allocates chunks of the superblocks, all
Valgrind's observations will be at the mmap() level and it won't know that
the chunks should be considered separate entities. In Memcheck's case,
that means you probably won't get heap block overrun detection (because
there won't be redzones marked as unaddressable) and you definitely won't
get any leak detection.
The following client requests allow a custom allocator to be annotated so
that it can be handled accurately by Valgrind.
VALGRIND_MALLOCLIKE_BLOCK marks a region of memory as having been allocated
by a malloc()-like function. For Memcheck (an illustrative case), this
does two things:
- It records that the block has been allocated. This means any addresses
within the block mentioned in error messages will be
identified as belonging to the block. It also means that if the block
isn't freed it will be detected by the leak checker.
- It marks the block as being addressable and undefined (if 'is_zeroed' is
not set), or addressable and defined (if 'is_zeroed' is set). This
controls how accesses to the block by the program are handled.
'addr' is the start of the usable block (ie. after any
redzone), 'sizeB' is its size. 'rzB' is the redzone size if the allocator
can apply redzones -- these are blocks of padding at the start and end of
each block. Adding redzones is recommended as it makes it much more likely
Valgrind will spot block overruns. `is_zeroed' indicates if the memory is
zeroed (or filled with another predictable value), as is the case for
calloc().
VALGRIND_MALLOCLIKE_BLOCK should be put immediately after the point where a
heap block -- that will be used by the client program -- is allocated.
It's best to put it at the outermost level of the allocator if possible;
for example, if you have a function my_alloc() which calls
internal_alloc(), and the client request is put inside internal_alloc(),
stack traces relating to the heap block will contain entries for both
my_alloc() and internal_alloc(), which is probably not what you want.
For Memcheck users: if you use VALGRIND_MALLOCLIKE_BLOCK to carve out
custom blocks from within a heap block, B, that has been allocated with
malloc/calloc/new/etc, then block B will be *ignored* during leak-checking
-- the custom blocks will take precedence.
VALGRIND_FREELIKE_BLOCK is the partner to VALGRIND_MALLOCLIKE_BLOCK. For
Memcheck, it does two things:
- It records that the block has been deallocated. This assumes that the
block was annotated as having been allocated via
VALGRIND_MALLOCLIKE_BLOCK. Otherwise, an error will be issued.
- It marks the block as being unaddressable.
VALGRIND_FREELIKE_BLOCK should be put immediately after the point where a
heap block is deallocated.
VALGRIND_RESIZEINPLACE_BLOCK informs a tool about reallocation. For
Memcheck, it does four things:
- It records that the size of a block has been changed. This assumes that
the block was annotated as having been allocated via
VALGRIND_MALLOCLIKE_BLOCK. Otherwise, an error will be issued.
- If the block shrunk, it marks the freed memory as being unaddressable.
- If the block grew, it marks the new area as undefined and defines a red
zone past the end of the new block.
- The V-bits of the overlap between the old and the new block are preserved.
VALGRIND_RESIZEINPLACE_BLOCK should be put after allocation of the new block
and before deallocation of the old block.
In many cases, these three client requests will not be enough to get your
allocator working well with Memcheck. More specifically, if your allocator
writes to freed blocks in any way then a VALGRIND_MAKE_MEM_UNDEFINED call
will be necessary to mark the memory as addressable just before the zeroing
occurs, otherwise you'll get a lot of invalid write errors. For example,
you'll need to do this if your allocator recycles freed blocks, but it
zeroes them before handing them back out (via VALGRIND_MALLOCLIKE_BLOCK).
Alternatively, if your allocator reuses freed blocks for allocator-internal
data structures, VALGRIND_MAKE_MEM_UNDEFINED calls will also be necessary.
Really, what's happening is a blurring of the lines between the client
program and the allocator... after VALGRIND_FREELIKE_BLOCK is called, the
memory should be considered unaddressable to the client program, but the
allocator knows more than the rest of the client program and so may be able
to safely access it. Extra client requests are necessary for Valgrind to
understand the distinction between the allocator and the rest of the
program.
Ignored if addr == 0.
*/
#define VALGRIND_MALLOCLIKE_BLOCK(addr, sizeB, rzB, is_zeroed) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MALLOCLIKE_BLOCK, \
addr, sizeB, rzB, is_zeroed, 0)
/* See the comment for VALGRIND_MALLOCLIKE_BLOCK for details.
Ignored if addr == 0.
*/
#define VALGRIND_RESIZEINPLACE_BLOCK(addr, oldSizeB, newSizeB, rzB) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__RESIZEINPLACE_BLOCK, \
addr, oldSizeB, newSizeB, rzB, 0)
/* See the comment for VALGRIND_MALLOCLIKE_BLOCK for details.
Ignored if addr == 0.
*/
#define VALGRIND_FREELIKE_BLOCK(addr, rzB) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__FREELIKE_BLOCK, \
addr, rzB, 0, 0, 0)
/* Create a memory pool. */
#define VALGRIND_CREATE_MEMPOOL(pool, rzB, is_zeroed) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__CREATE_MEMPOOL, \
pool, rzB, is_zeroed, 0, 0)
/* Destroy a memory pool. */
#define VALGRIND_DESTROY_MEMPOOL(pool) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__DESTROY_MEMPOOL, \
pool, 0, 0, 0, 0)
/* Associate a piece of memory with a memory pool. */
#define VALGRIND_MEMPOOL_ALLOC(pool, addr, size) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MEMPOOL_ALLOC, \
pool, addr, size, 0, 0)
/* Disassociate a piece of memory from a memory pool. */
#define VALGRIND_MEMPOOL_FREE(pool, addr) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MEMPOOL_FREE, \
pool, addr, 0, 0, 0)
/* Disassociate any pieces outside a particular range. */
#define VALGRIND_MEMPOOL_TRIM(pool, addr, size) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MEMPOOL_TRIM, \
pool, addr, size, 0, 0)
/* Resize and/or move a piece associated with a memory pool. */
#define VALGRIND_MOVE_MEMPOOL(poolA, poolB) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MOVE_MEMPOOL, \
poolA, poolB, 0, 0, 0)
/* Resize and/or move a piece associated with a memory pool. */
#define VALGRIND_MEMPOOL_CHANGE(pool, addrA, addrB, size) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MEMPOOL_CHANGE, \
pool, addrA, addrB, size, 0)
/* Return 1 if a mempool exists, else 0. */
#define VALGRIND_MEMPOOL_EXISTS(pool) \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MEMPOOL_EXISTS, \
pool, 0, 0, 0, 0)
/* Mark a piece of memory as being a stack. Returns a stack id. */
#define VALGRIND_STACK_REGISTER(start, end) \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__STACK_REGISTER, \
start, end, 0, 0, 0)
/* Unmark the piece of memory associated with a stack id as being a
stack. */
#define VALGRIND_STACK_DEREGISTER(id) \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__STACK_DEREGISTER, \
id, 0, 0, 0, 0)
/* Change the start and end address of the stack id. */
#define VALGRIND_STACK_CHANGE(id, start, end) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__STACK_CHANGE, \
id, start, end, 0, 0)
/* Load PDB debug info for Wine PE image_map. */
#define VALGRIND_LOAD_PDB_DEBUGINFO(fd, ptr, total_size, delta) \
VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__LOAD_PDB_DEBUGINFO, \
fd, ptr, total_size, delta, 0)
/* Map a code address to a source file name and line number. buf64
must point to a 64-byte buffer in the caller's address space. The
result will be dumped in there and is guaranteed to be zero
terminated. If no info is found, the first byte is set to zero. */
#define VALGRIND_MAP_IP_TO_SRCLOC(addr, buf64) \
(unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \
VG_USERREQ__MAP_IP_TO_SRCLOC, \
addr, buf64, 0, 0, 0)
#undef PLAT_x86_darwin
#undef PLAT_amd64_darwin
#undef PLAT_x86_win32
#undef PLAT_x86_linux
#undef PLAT_amd64_linux
#undef PLAT_ppc32_linux
#undef PLAT_ppc64_linux
#undef PLAT_arm_linux
#undef PLAT_s390x_linux
#endif /* __VALGRIND_H */