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Diffstat (limited to 'arch/powerpc/kernel/vmlinux.lds.S')
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S154
1 files changed, 79 insertions, 75 deletions
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 40bdefe9caa7..15850296c0a9 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -1,13 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#ifdef CONFIG_PPC64
-#define PROVIDE32(x) PROVIDE(__unused__##x)
-#else
-#define PROVIDE32(x) PROVIDE(x)
-#endif
-
#define BSS_FIRST_SECTIONS *(.bss.prominit)
#define EMITS_PT_NOTE
#define RO_EXCEPTION_TABLE_ALIGN 0
+#define RUNTIME_DISCARD_EXIT
#define SOFT_MASK_TABLE(align) \
. = ALIGN(align); \
@@ -32,6 +27,10 @@
#define STRICT_ALIGN_SIZE (1 << CONFIG_DATA_SHIFT)
+#if STRICT_ALIGN_SIZE < PAGE_SIZE
+#error "CONFIG_DATA_SHIFT must be >= PAGE_SHIFT"
+#endif
+
ENTRY(_stext)
PHDRS {
@@ -67,7 +66,7 @@ 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);
@@ -102,12 +101,9 @@ SECTIONS
#endif
/* careful! __ftr_alt_* sections need to be close to .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
KPROBES_TEXT
IRQENTRY_TEXT
@@ -120,29 +116,73 @@ SECTIONS
* included with the main text sections, so put it by itself.
*/
*(.sfpr);
- MEM_KEEP(init.text)
- MEM_KEEP(exit.text)
+ *(.text.asan.* .text.tsan.*)
+ } :text
+
+ . = ALIGN(PAGE_SIZE);
+ _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 .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 */
-
- } :text
+ }
+ .got : AT(ADDR(.got) - LOAD_OFFSET) {
+ *(.got)
+ *(.got.plt)
+ }
+ .plt : AT(ADDR(.plt) - LOAD_OFFSET) {
+ /* XXX: is .plt (and .got.plt) required? */
+ *(.plt)
+ }
- . = ALIGN(PAGE_SIZE);
- _etext = .;
- PROVIDE32 (etext = .);
+#else /* CONFIG_PPC32 */
+#ifndef CONFIG_PPC_KERNEL_PCREL
+ .toc1 : AT(ADDR(.toc1) - LOAD_OFFSET) {
+ *(.toc1)
+ }
+#endif
- /* Read-only data */
- RO_DATA(PAGE_SIZE)
+ .got : AT(ADDR(.got) - LOAD_OFFSET) ALIGN(256) {
+#ifdef CONFIG_PPC_KERNEL_PCREL
+ *(.got)
+#else
+ *(.got .toc)
+#endif
+ }
-#ifdef CONFIG_PPC64
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
+
. = ALIGN(8);
__stf_entry_barrier_fixup : AT(ADDR(__stf_entry_barrier_fixup) - LOAD_OFFSET) {
__start___stf_entry_barrier_fixup = .;
@@ -184,7 +224,7 @@ SECTIONS
*(__rfi_flush_fixup)
__stop___rfi_flush_fixup = .;
}
-#endif /* CONFIG_PPC64 */
+#endif /* CONFIG_PPC32 */
#ifdef CONFIG_PPC_BARRIER_NOSPEC
. = ALIGN(8);
@@ -195,7 +235,7 @@ 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 = .;
@@ -204,32 +244,36 @@ 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
-
+ *(.tramp.ftrace.init);
/*
*.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);
-#endif
} :text
/* .exit.text is discarded at runtime, not link time,
* to deal with references from __bug_table
*/
.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
+ __exittext_begin = .;
EXIT_TEXT
+ __exittext_end = .;
}
. = ALIGN(PAGE_SIZE);
@@ -275,9 +319,7 @@ SECTIONS
. = ALIGN(8);
.dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET)
{
-#ifdef CONFIG_PPC32
__dynamic_symtab = .;
-#endif
*(.dynsym)
}
.dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
@@ -288,7 +330,6 @@ SECTIONS
}
.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)
{
__rela_dyn_start = .;
@@ -313,50 +354,13 @@ 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
-#ifdef CONFIG_UBSAN
- *(.data..Lubsan_data*)
- *(.data..Lubsan_type*)
-#endif
- *(.data.rel*)
- *(.toc1)
- *(.branch_lt)
- }
-
- .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)
@@ -382,7 +386,6 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
_edata = .;
- PROVIDE32 (edata = .);
/*
* And finally the bss
@@ -392,18 +395,19 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
_end = . ;
- PROVIDE32 (end = .);
- STABS_DEBUG
DWARF_DEBUG
ELF_DETAILS
DISCARDS
/DISCARD/ : {
*(*.EMB.apuinfo)
- *(.glink .iplt .plt .rela* .comment)
+ *(.glink .iplt .plt)
*(.gnu.version*)
*(.gnu.attributes)
*(.eh_frame)
+#ifndef CONFIG_RELOCATABLE
+ *(.rela*)
+#endif
}
}
generated by cgit (git 2.34.1) at 2025-12-25 12:07:39 +0000