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Diffstat (limited to 'arch/powerpc/kernel/vmlinux.lds.S')
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S193
1 files changed, 116 insertions, 77 deletions
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index a32d478a7f41..7786e3ac7611 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -9,13 +9,32 @@
#define EMITS_PT_NOTE
#define RO_EXCEPTION_TABLE_ALIGN 0
+#define SOFT_MASK_TABLE(align) \
+ . = ALIGN(align); \
+ __soft_mask_table : AT(ADDR(__soft_mask_table) - LOAD_OFFSET) { \
+ __start___soft_mask_table = .; \
+ KEEP(*(__soft_mask_table)) \
+ __stop___soft_mask_table = .; \
+ }
+
+#define RESTART_TABLE(align) \
+ . = ALIGN(align); \
+ __restart_table : AT(ADDR(__restart_table) - LOAD_OFFSET) { \
+ __start___restart_table = .; \
+ KEEP(*(__restart_table)) \
+ __stop___restart_table = .; \
+ }
+
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
#define STRICT_ALIGN_SIZE (1 << CONFIG_DATA_SHIFT)
-#define ETEXT_ALIGN_SIZE (1 << CONFIG_ETEXT_SHIFT)
+
+#if STRICT_ALIGN_SIZE < PAGE_SIZE
+#error "CONFIG_DATA_SHIFT must be >= PAGE_SHIFT"
+#endif
ENTRY(_stext)
@@ -52,7 +71,7 @@ SECTIONS
.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {
#ifdef CONFIG_PPC64
KEEP(*(.head.text.first_256B));
-#ifdef CONFIG_PPC_BOOK3E
+#ifdef CONFIG_PPC_BOOK3E_64
#else
KEEP(*(.head.text.real_vectors));
*(.head.text.real_trampolines);
@@ -86,10 +105,11 @@ SECTIONS
ALIGN_FUNCTION();
#endif
/* careful! __ftr_alt_* sections need to be close to .text */
- *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
+ *(.text.hot .text.hot.* TEXT_MAIN .text.fixup .text.unlikely .text.unlikely.* .fixup __ftr_alt_* .ref.text);
#ifdef CONFIG_PPC64
*(.tramp.ftrace.text);
#endif
+ NOINSTR_TEXT
SCHED_TEXT
CPUIDLE_TEXT
LOCK_TEXT
@@ -106,24 +126,67 @@ SECTIONS
*(.sfpr);
MEM_KEEP(init.text)
MEM_KEEP(exit.text)
+ } :text
+
+ . = ALIGN(PAGE_SIZE);
+ _etext = .;
+ PROVIDE32 (etext = .);
+
+ /* Read-only data */
+ RO_DATA(PAGE_SIZE)
#ifdef CONFIG_PPC32
+ .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
+ *(.sdata2)
+ }
+#endif
+
+ .data.rel.ro : AT(ADDR(.data.rel.ro) - LOAD_OFFSET) {
+ *(.data.rel.ro*)
+ }
+
+ .branch_lt : AT(ADDR(.branch_lt) - LOAD_OFFSET) {
+ *(.branch_lt)
+ }
+
+#ifdef CONFIG_PPC32
+ .got1 : AT(ADDR(.got1) - LOAD_OFFSET) {
*(.got1)
+ }
+ .got2 : AT(ADDR(.got2) - LOAD_OFFSET) {
__got2_start = .;
*(.got2)
__got2_end = .;
-#endif /* CONFIG_PPC32 */
+ }
+ .got : AT(ADDR(.got) - LOAD_OFFSET) {
+ *(.got)
+ *(.got.plt)
+ }
+ .plt : AT(ADDR(.plt) - LOAD_OFFSET) {
+ /* XXX: is .plt (and .got.plt) required? */
+ *(.plt)
+ }
- } :text
+#else /* CONFIG_PPC32 */
+ .toc1 : AT(ADDR(.toc1) - LOAD_OFFSET) {
+ *(.toc1)
+ }
- . = ALIGN(ETEXT_ALIGN_SIZE);
- _etext = .;
- PROVIDE32 (etext = .);
+ .got : AT(ADDR(.got) - LOAD_OFFSET) ALIGN(256) {
+ *(.got .toc)
+ }
- /* Read-only data */
- RO_DATA(PAGE_SIZE)
+ SOFT_MASK_TABLE(8)
+ RESTART_TABLE(8)
+
+#ifdef CONFIG_PPC64_ELF_ABI_V1
+ .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+ __start_opd = .;
+ KEEP(*(.opd))
+ __end_opd = .;
+ }
+#endif
-#ifdef CONFIG_PPC64
. = ALIGN(8);
__stf_entry_barrier_fixup : AT(ADDR(__stf_entry_barrier_fixup) - LOAD_OFFSET) {
__start___stf_entry_barrier_fixup = .;
@@ -132,6 +195,27 @@ SECTIONS
}
. = ALIGN(8);
+ __uaccess_flush_fixup : AT(ADDR(__uaccess_flush_fixup) - LOAD_OFFSET) {
+ __start___uaccess_flush_fixup = .;
+ *(__uaccess_flush_fixup)
+ __stop___uaccess_flush_fixup = .;
+ }
+
+ . = ALIGN(8);
+ __entry_flush_fixup : AT(ADDR(__entry_flush_fixup) - LOAD_OFFSET) {
+ __start___entry_flush_fixup = .;
+ *(__entry_flush_fixup)
+ __stop___entry_flush_fixup = .;
+ }
+
+ . = ALIGN(8);
+ __scv_entry_flush_fixup : AT(ADDR(__scv_entry_flush_fixup) - LOAD_OFFSET) {
+ __start___scv_entry_flush_fixup = .;
+ *(__scv_entry_flush_fixup)
+ __stop___scv_entry_flush_fixup = .;
+ }
+
+ . = ALIGN(8);
__stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) {
__start___stf_exit_barrier_fixup = .;
*(__stf_exit_barrier_fixup)
@@ -144,7 +228,7 @@ SECTIONS
*(__rfi_flush_fixup)
__stop___rfi_flush_fixup = .;
}
-#endif /* CONFIG_PPC64 */
+#endif /* CONFIG_PPC32 */
#ifdef CONFIG_PPC_BARRIER_NOSPEC
. = ALIGN(8);
@@ -155,7 +239,7 @@ SECTIONS
}
#endif /* CONFIG_PPC_BARRIER_NOSPEC */
-#ifdef CONFIG_PPC_FSL_BOOK3E
+#ifdef CONFIG_PPC_E500
. = ALIGN(8);
__spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) {
__start__btb_flush_fixup = .;
@@ -164,15 +248,26 @@ SECTIONS
}
#endif
+ /*
+ * Various code relies on __init_begin being at the strict RWX boundary.
+ */
+ . = ALIGN(STRICT_ALIGN_SIZE);
+ __srwx_boundary = .;
+ __end_rodata = .;
+ __init_begin = .;
+
/*
* Init sections discarded at runtime
*/
- . = ALIGN(STRICT_ALIGN_SIZE);
- __init_begin = .;
- . = ALIGN(PAGE_SIZE);
.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
_sinittext = .;
INIT_TEXT
+
+ /*
+ *.init.text might be RO so we must ensure this section ends on
+ * a page boundary.
+ */
+ . = ALIGN(PAGE_SIZE);
_einittext = .;
#ifdef CONFIG_PPC64
*(.tramp.ftrace.init);
@@ -186,21 +281,9 @@ SECTIONS
EXIT_TEXT
}
- .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
- INIT_DATA
- }
-
- .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
- INIT_SETUP(16)
- }
+ . = ALIGN(PAGE_SIZE);
- .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
- INIT_CALLS
- }
-
- .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
- CON_INITCALL
- }
+ INIT_DATA_SECTION(16)
. = ALIGN(8);
__ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
@@ -228,9 +311,6 @@ SECTIONS
__stop___fw_ftr_fixup = .;
}
#endif
- .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
- INIT_RAM_FS
- }
PERCPU_SECTION(L1_CACHE_BYTES)
@@ -244,9 +324,7 @@ SECTIONS
. = ALIGN(8);
.dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET)
{
-#ifdef CONFIG_PPC32
__dynamic_symtab = .;
-#endif
*(.dynsym)
}
.dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
@@ -256,6 +334,7 @@ SECTIONS
*(.dynamic)
}
.hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) }
+ .gnu.hash : AT(ADDR(.gnu.hash) - LOAD_OFFSET) { *(.gnu.hash) }
.interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) }
.rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET)
{
@@ -281,53 +360,14 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
_sdata = .;
-#ifdef CONFIG_PPC32
.data : AT(ADDR(.data) - LOAD_OFFSET) {
DATA_DATA
-#ifdef CONFIG_UBSAN
- *(.data..Lubsan_data*)
- *(.data..Lubsan_type*)
-#endif
*(.data.rel*)
+#ifdef CONFIG_PPC32
*(SDATA_MAIN)
- *(.sdata2)
- *(.got.plt) *(.got)
- *(.plt)
- *(.branch_lt)
- }
-#else
- .data : AT(ADDR(.data) - LOAD_OFFSET) {
- DATA_DATA
- *(.data.rel*)
- *(.toc1)
- *(.branch_lt)
- }
-
-#ifdef CONFIG_DEBUG_INFO_BTF
- .BTF : AT(ADDR(.BTF) - LOAD_OFFSET) {
- *(.BTF)
- }
#endif
-
- .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
- __start_opd = .;
- KEEP(*(.opd))
- __end_opd = .;
}
- . = ALIGN(256);
- .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_ALIGN)
@@ -364,9 +404,8 @@ SECTIONS
_end = . ;
PROVIDE32 (end = .);
- STABS_DEBUG
-
DWARF_DEBUG
+ ELF_DETAILS
DISCARDS
/DISCARD/ : {
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