/* Linux-specific definitions: */ /* Define various structure offsets to simplify cross-compilation. */ /* FIXME: Currently these are only used in getcontext.S, which is only used for a local unwinder, so we can use the compile-time ABI. At a later date we will want all three here, to use for signal handlers. Also, because of the three ABIs, gen-offsets.c can not quite generate this file. */ /* Offsets for MIPS Linux "ucontext_t": */ /* First 24 bytes in sigframe are argument save space and padding for what used to be signal trampolines. Ref: arch/mips/kernel/signal.c */ #define LINUX_SF_TRAMP_SIZE 0x18 #if _MIPS_SIM == _ABIO32 # define LINUX_UC_FLAGS_OFF 0x0 # define LINUX_UC_LINK_OFF 0x4 # define LINUX_UC_STACK_OFF 0x8 # define LINUX_UC_MCONTEXT_OFF 0x18 # define LINUX_UC_SIGMASK_OFF 0x268 # define LINUX_UC_MCONTEXT_PC 0x20 # define LINUX_UC_MCONTEXT_GREGS 0x28 #elif _MIPS_SIM == _ABIN32 # define LINUX_UC_FLAGS_OFF 0x0 # define LINUX_UC_LINK_OFF 0x4 # define LINUX_UC_STACK_OFF 0x8 # define LINUX_UC_MCONTEXT_OFF 0x18 # define LINUX_UC_SIGMASK_OFF 0x270 # define LINUX_UC_MCONTEXT_PC 0x258 # define LINUX_UC_MCONTEXT_GREGS 0x18 #elif _MIPS_SIM == _ABI64 # define LINUX_UC_FLAGS_OFF 0x0 # define LINUX_UC_LINK_OFF 0x8 # define LINUX_UC_STACK_OFF 0x10 # define LINUX_UC_MCONTEXT_OFF 0x28 # define LINUX_UC_SIGMASK_OFF 0x280 # define LINUX_UC_MCONTEXT_PC 0x268 # define LINUX_UC_MCONTEXT_GREGS 0x28 #else #error Unsupported ABI #endif #define LINUX_SC_R0_OFF (LINUX_UC_MCONTEXT_GREGS - LINUX_UC_MCONTEXT_OFF) #define LINUX_SC_R1_OFF (LINUX_SC_R0_OFF + 1*8) #define LINUX_SC_R2_OFF (LINUX_SC_R0_OFF + 2*8) #define LINUX_SC_R3_OFF (LINUX_SC_R0_OFF + 3*8) #define LINUX_SC_R4_OFF (LINUX_SC_R0_OFF + 4*8) #define LINUX_SC_R5_OFF (LINUX_SC_R0_OFF + 5*8) #define LINUX_SC_R6_OFF (LINUX_SC_R0_OFF + 6*8) #define LINUX_SC_R7_OFF (LINUX_SC_R0_OFF + 7*8) #define LINUX_SC_R8_OFF (LINUX_SC_R0_OFF + 8*8) #define LINUX_SC_R9_OFF (LINUX_SC_R0_OFF + 9*8) #define LINUX_SC_R10_OFF (LINUX_SC_R0_OFF + 10*8) #define LINUX_SC_R11_OFF (LINUX_SC_R0_OFF + 11*8) #define LINUX_SC_R12_OFF (LINUX_SC_R0_OFF + 12*8) #define LINUX_SC_R13_OFF (LINUX_SC_R0_OFF + 13*8) #define LINUX_SC_R14_OFF (LINUX_SC_R0_OFF + 14*8) #define LINUX_SC_R15_OFF (LINUX_SC_R0_OFF + 15*8) #define LINUX_SC_R16_OFF (LINUX_SC_R0_OFF + 16*8) #define LINUX_SC_R17_OFF (LINUX_SC_R0_OFF + 17*8) #define LINUX_SC_R18_OFF (LINUX_SC_R0_OFF + 18*8) #define LINUX_SC_R19_OFF (LINUX_SC_R0_OFF + 19*8) #define LINUX_SC_R20_OFF (LINUX_SC_R0_OFF + 20*8) #define LINUX_SC_R21_OFF (LINUX_SC_R0_OFF + 21*8) #define LINUX_SC_R22_OFF (LINUX_SC_R0_OFF + 22*8) #define LINUX_SC_R23_OFF (LINUX_SC_R0_OFF + 23*8) #define LINUX_SC_R24_OFF (LINUX_SC_R0_OFF + 24*8) #define LINUX_SC_R25_OFF (LINUX_SC_R0_OFF + 25*8) #define LINUX_SC_R26_OFF (LINUX_SC_R0_OFF + 26*8) #define LINUX_SC_R27_OFF (LINUX_SC_R0_OFF + 27*8) #define LINUX_SC_R28_OFF (LINUX_SC_R0_OFF + 28*8) #define LINUX_SC_R29_OFF (LINUX_SC_R0_OFF + 29*8) #define LINUX_SC_R30_OFF (LINUX_SC_R0_OFF + 30*8) #define LINUX_SC_R31_OFF (LINUX_SC_R0_OFF + 31*8) #define LINUX_SC_SP_OFF LINUX_SC_R29_OFF #define LINUX_SC_PC_OFF (LINUX_UC_MCONTEXT_PC - LINUX_UC_MCONTEXT_OFF)