#ifdef CONFIG_PPC64 #define PROVIDE32(x) PROVIDE(__unused__##x) #else #define PROVIDE32(x) PROVIDE(x) #endif #include <asm/page.h> #include <asm-generic/vmlinux.lds.h> #include <asm/cache.h> #include <asm/thread_info.h> ENTRY(_stext) PHDRS { kernel PT_LOAD FLAGS(7); /* RWX */ notes PT_NOTE FLAGS(0); dummy PT_NOTE FLAGS(0); /* binutils < 2.18 has a bug that makes it misbehave when taking an ELF file with all segments at load address 0 as input. This happens when running "strip" on vmlinux, because of the AT() magic in this linker script. People using GCC >= 4.2 won't run into this problem, because the "build-id" support will put some data into the "notes" segment (at a non-zero load address). To work around this, we force some data into both the "dummy" segment and the kernel segment, so the dummy segment will get a non-zero load address. It's not enough to always create the "notes" segment, since if nothing gets assigned to it, its load address will be zero. */ } #ifdef CONFIG_PPC64 OUTPUT_ARCH(powerpc:common64) jiffies = jiffies_64; #else OUTPUT_ARCH(powerpc:common) jiffies = jiffies_64 + 4; #endif SECTIONS { . = KERNELBASE; /* * Text, read only data and other permanent read-only sections */ /* Text and gots */ .text : AT(ADDR(.text) - LOAD_OFFSET) { ALIGN_FUNCTION(); HEAD_TEXT _text = .; /* careful! __ftr_alt_* sections need to be close to .text */ *(.text .fixup __ftr_alt_* .ref.text) SCHED_TEXT LOCK_TEXT KPROBES_TEXT IRQENTRY_TEXT #ifdef CONFIG_PPC32 *(.got1) __got2_start = .; *(.got2) __got2_end = .; #endif /* CONFIG_PPC32 */ } :kernel . = ALIGN(PAGE_SIZE); _etext = .; PROVIDE32 (etext = .); /* Read-only data */ RODATA EXCEPTION_TABLE(0) NOTES :kernel :notes /* The dummy segment contents for the bug workaround mentioned above near PHDRS. */ .dummy : AT(ADDR(.dummy) - LOAD_OFFSET) { LONG(0) LONG(0) LONG(0) } :kernel :dummy /* * Init sections discarded at runtime */ . = ALIGN(PAGE_SIZE); __init_begin = .; INIT_TEXT_SECTION(PAGE_SIZE) :kernel /* .exit.text is discarded at runtime, not link time, * to deal with references from __bug_table */ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { EXIT_TEXT } .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { INIT_DATA __vtop_table_begin = .; *(.vtop_fixup); __vtop_table_end = .; __ptov_table_begin = .; *(.ptov_fixup); __ptov_table_end = .; } .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { INIT_SETUP(16) } .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) { INIT_CALLS } .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) { CON_INITCALL } SECURITY_INIT . = ALIGN(8); __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) { __start___ftr_fixup = .; *(__ftr_fixup) __stop___ftr_fixup = .; } . = ALIGN(8); __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) { __start___mmu_ftr_fixup = .; *(__mmu_ftr_fixup) __stop___mmu_ftr_fixup = .; } . = ALIGN(8); __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) { __start___lwsync_fixup = .; *(__lwsync_fixup) __stop___lwsync_fixup = .; } #ifdef CONFIG_PPC64 . = ALIGN(8); __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) { __start___fw_ftr_fixup = .; *(__fw_ftr_fixup) __stop___fw_ftr_fixup = .; } #endif .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { INIT_RAM_FS } PERCPU_SECTION(L1_CACHE_BYTES) . = ALIGN(8); .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) { __machine_desc_start = . ; *(.machine.desc) __machine_desc_end = . ; } #ifdef CONFIG_RELOCATABLE . = ALIGN(8); .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) { #ifdef CONFIG_RELOCATABLE_PPC32 __dynamic_symtab = .; #endif *(.dynsym) } .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) } .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET) { __dynamic_start = .; *(.dynamic) } .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) } .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) } .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET) { __rela_dyn_start = .; *(.rela*) } #endif /* freed after init ends here */ . = ALIGN(PAGE_SIZE); __init_end = .; /* * And now the various read/write data */ . = ALIGN(PAGE_SIZE); _sdata = .; #ifdef CONFIG_PPC32 .data : AT(ADDR(.data) - LOAD_OFFSET) { DATA_DATA *(.sdata) *(.got.plt) *(.got) } #else .data : AT(ADDR(.data) - LOAD_OFFSET) { DATA_DATA *(.data.rel*) *(.toc1) *(.branch_lt) } .opd : AT(ADDR(.opd) - LOAD_OFFSET) { *(.opd) } .got : AT(ADDR(.got) - LOAD_OFFSET) { __toc_start = .; #ifndef CONFIG_RELOCATABLE __prom_init_toc_start = .; arch/powerpc/kernel/prom_init.o*(.toc .got) __prom_init_toc_end = .; #endif *(.got) *(.toc) } #endif /* The initial task and kernel stack */ INIT_TASK_DATA_SECTION(THREAD_SIZE) .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) { PAGE_ALIGNED_DATA(PAGE_SIZE) } .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) { CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES) } .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) { READ_MOSTLY_DATA(L1_CACHE_BYTES) } . = ALIGN(PAGE_SIZE); .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { NOSAVE_DATA } . = ALIGN(PAGE_SIZE); _edata = .; PROVIDE32 (edata = .); /* * And finally the bss */ BSS_SECTION(0, 0, 0) . = ALIGN(PAGE_SIZE); _end = . ; PROVIDE32 (end = .); /* Sections to be discarded. */ DISCARDS }