-#include <linux/config.h>
+#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;
#endif
SECTIONS
{
- /* Sections to be discarded. */
- /DISCARD/ : {
- *(.exitcall.exit)
- *(.exit.data)
- }
-
- . = KERNELBASE;
+ . = 0;
+ reloc_start = .;
+
+ . = 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
- /* Read-only sections, merged into text segment: */
-#ifdef CONFIG_PPC32
- . = + SIZEOF_HEADERS;
- .interp : { *(.interp) }
- .hash : { *(.hash) }
- .dynsym : { *(.dynsym) }
- .dynstr : { *(.dynstr) }
- .rel.text : { *(.rel.text) }
- .rela.text : { *(.rela.text) }
- .rel.data : { *(.rel.data) }
- .rela.data : { *(.rela.data) }
- .rel.rodata : { *(.rel.rodata) }
- .rela.rodata : { *(.rela.rodata) }
- .rel.got : { *(.rel.got) }
- .rela.got : { *(.rela.got) }
- .rel.ctors : { *(.rel.ctors) }
- .rela.ctors : { *(.rela.ctors) }
- .rel.dtors : { *(.rel.dtors) }
- .rela.dtors : { *(.rela.dtors) }
- .rel.bss : { *(.rel.bss) }
- .rela.bss : { *(.rela.bss) }
- .rel.plt : { *(.rel.plt) }
- .rela.plt : { *(.rela.plt) }
-/* .init : { *(.init) } =0*/
- .plt : { *(.plt) }
-#endif
- .text : {
- *(.text .text.*)
- SCHED_TEXT
- LOCK_TEXT
- KPROBES_TEXT
- *(.fixup)
-#ifdef CONFIG_PPC32
- *(.got1)
- __got2_start = .;
- *(.got2)
- __got2_end = .;
-#else
- . = ALIGN(PAGE_SIZE);
- _etext = .;
-#endif
- }
#ifdef CONFIG_PPC32
- _etext = .;
- PROVIDE (etext = .);
-
- RODATA
- .fini : { *(.fini) } =0
- .ctors : { *(.ctors) }
- .dtors : { *(.dtors) }
+ *(.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
+ }
- .fixup : { *(.fixup) }
+ .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 = .;
+#ifdef CONFIG_PPC_ISERIES
+ __dt_strings_start = .;
+ *(.dt_strings);
+ __dt_strings_end = .;
#endif
+ }
- __ex_table : {
- __start___ex_table = .;
- *(__ex_table)
- __stop___ex_table = .;
+ .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
+ INIT_SETUP(16)
}
- __bug_table : {
- __start___bug_table = .;
- *(__bug_table)
- __stop___bug_table = .;
+ .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
+ INIT_CALLS
}
-#ifdef CONFIG_PPC64
- __ftr_fixup : {
+ .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 = .;
}
-
- RODATA
+ . = 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
+ }
-#ifdef CONFIG_PPC32
- /* Read-write section, merged into data segment: */
- . = ALIGN(PAGE_SIZE);
- _sdata = .;
- .data :
- {
- *(.data)
- *(.data1)
- *(.sdata)
- *(.sdata2)
- *(.got.plt) *(.got)
- *(.dynamic)
- CONSTRUCTORS
- }
-
- . = ALIGN(PAGE_SIZE);
- __nosave_begin = .;
- .data_nosave : { *(.data.nosave) }
- . = ALIGN(PAGE_SIZE);
- __nosave_end = .;
-
- . = ALIGN(32);
- .data.cacheline_aligned : { *(.data.cacheline_aligned) }
-
- _edata = .;
- PROVIDE (edata = .);
-
- . = ALIGN(8192);
- .data.init_task : { *(.data.init_task) }
-#endif
+ PERCPU(PAGE_SIZE)
- /* will be freed after init */
- . = ALIGN(PAGE_SIZE);
- __init_begin = .;
- .init.text : {
- _sinittext = .;
- *(.init.text)
- _einittext = .;
- }
-#ifdef CONFIG_PPC32
- /* .exit.text is discarded at runtime, not link time,
- to deal with references from __bug_table */
- .exit.text : { *(.exit.text) }
+ . = 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) { *(.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
- .init.data : {
- *(.init.data);
- __vtop_table_begin = .;
- *(.vtop_fixup);
- __vtop_table_end = .;
- __ptov_table_begin = .;
- *(.ptov_fixup);
- __ptov_table_end = .;
- }
-
- . = ALIGN(16);
- .init.setup : {
- __setup_start = .;
- *(.init.setup)
- __setup_end = .;
- }
-
- .initcall.init : {
- __initcall_start = .;
- *(.initcall1.init)
- *(.initcall2.init)
- *(.initcall3.init)
- *(.initcall4.init)
- *(.initcall5.init)
- *(.initcall6.init)
- *(.initcall7.init)
- __initcall_end = .;
- }
-
- .con_initcall.init : {
- __con_initcall_start = .;
- *(.con_initcall.init)
- __con_initcall_end = .;
- }
-
- SECURITY_INIT
+
+ /* freed after init ends here */
+ . = ALIGN(PAGE_SIZE);
+ __init_end = .;
+
+/*
+ * And now the various read/write data
+ */
+
+ . = ALIGN(PAGE_SIZE);
+ _sdata = .;
#ifdef CONFIG_PPC32
- __start___ftr_fixup = .;
- __ftr_fixup : { *(__ftr_fixup) }
- __stop___ftr_fixup = .;
+ .data : AT(ADDR(.data) - LOAD_OFFSET) {
+ DATA_DATA
+ *(.sdata)
+ *(.got.plt) *(.got)
+ }
#else
- . = ALIGN(PAGE_SIZE);
- .init.ramfs : {
- __initramfs_start = .;
- *(.init.ramfs)
- __initramfs_end = .;
- }
-#endif
+ .data : AT(ADDR(.data) - LOAD_OFFSET) {
+ DATA_DATA
+ *(.data.rel*)
+ *(.toc1)
+ *(.branch_lt)
+ }
-#ifdef CONFIG_PPC32
- . = ALIGN(32);
+ .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+ *(.opd)
+ }
+
+ .got : AT(ADDR(.got) - LOAD_OFFSET) {
+ __toc_start = .;
+ *(.got)
+ *(.toc)
+ }
#endif
- .data.percpu : {
- __per_cpu_start = .;
- *(.data.percpu)
- __per_cpu_end = .;
- }
- . = ALIGN(PAGE_SIZE);
-#ifdef CONFIG_PPC64
- . = ALIGN(16384);
- __init_end = .;
- /* freed after init ends here */
-
- /* Read/write sections */
- . = ALIGN(PAGE_SIZE);
- . = ALIGN(16384);
- _sdata = .;
- /* The initial task and kernel stack */
- .data.init_task : {
- *(.data.init_task)
- }
-
- . = ALIGN(PAGE_SIZE);
- .data.page_aligned : {
- *(.data.page_aligned)
- }
-
- .data.cacheline_aligned : {
- *(.data.cacheline_aligned)
- }
-
- .data : {
- *(.data .data.rel* .toc1)
- *(.branch_lt)
- }
-
- .opd : {
- *(.opd)
- }
-
- .got : {
- __toc_start = .;
- *(.got)
- *(.toc)
- . = ALIGN(PAGE_SIZE);
- _edata = .;
- }
-
- . = ALIGN(PAGE_SIZE);
-#else
- __initramfs_start = .;
- .init.ramfs : {
- *(.init.ramfs)
- }
- __initramfs_end = .;
+ /* The initial task and kernel stack */
+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
+ INIT_TASK_DATA(THREAD_SIZE)
+ }
- . = ALIGN(4096);
- __init_end = .;
+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
+ PAGE_ALIGNED_DATA(PAGE_SIZE)
+ }
- . = ALIGN(4096);
- _sextratext = .;
- _eextratext = .;
+ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
+ CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
+ }
- __bss_start = .;
-#endif
+ .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
+ READ_MOSTLY_DATA(L1_CACHE_BYTES)
+ }
- .bss : {
- __bss_start = .;
- *(.sbss) *(.scommon)
- *(.dynbss)
- *(.bss)
- *(COMMON)
- __bss_stop = .;
- }
+ . = ALIGN(PAGE_SIZE);
+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
+ NOSAVE_DATA
+ }
-#ifdef CONFIG_PPC64
- . = ALIGN(PAGE_SIZE);
-#endif
- _end = . ;
-#ifdef CONFIG_PPC32
- PROVIDE (end = .);
-#endif
+ . = 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
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff