diff options
Diffstat (limited to 'arch/x86/boot/compressed/head_64.S')
| -rw-r--r-- | arch/x86/boot/compressed/head_64.S | 63 |
1 files changed, 33 insertions, 30 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index d98cd483377e..58a512e33d8d 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -45,7 +45,7 @@ __HEAD .code32 -ENTRY(startup_32) +SYM_FUNC_START(startup_32) /* * 32bit entry is 0 and it is ABI so immutable! * If we come here directly from a bootloader, @@ -222,11 +222,11 @@ ENTRY(startup_32) /* Jump from 32bit compatibility mode into 64bit mode. */ lret -ENDPROC(startup_32) +SYM_FUNC_END(startup_32) #ifdef CONFIG_EFI_MIXED .org 0x190 -ENTRY(efi32_stub_entry) +SYM_FUNC_START(efi32_stub_entry) add $0x4, %esp /* Discard return address */ popl %ecx popl %edx @@ -245,12 +245,12 @@ ENTRY(efi32_stub_entry) movl %eax, efi_config(%ebp) jmp startup_32 -ENDPROC(efi32_stub_entry) +SYM_FUNC_END(efi32_stub_entry) #endif .code64 .org 0x200 -ENTRY(startup_64) +SYM_CODE_START(startup_64) /* * 64bit entry is 0x200 and it is ABI so immutable! * We come here either from startup_32 or directly from a @@ -442,11 +442,12 @@ trampoline_return: */ leaq .Lrelocated(%rbx), %rax jmp *%rax +SYM_CODE_END(startup_64) #ifdef CONFIG_EFI_STUB /* The entry point for the PE/COFF executable is efi_pe_entry. */ -ENTRY(efi_pe_entry) +SYM_FUNC_START(efi_pe_entry) movq %rcx, efi64_config(%rip) /* Handle */ movq %rdx, efi64_config+8(%rip) /* EFI System table pointer */ @@ -495,10 +496,10 @@ fail: movl BP_code32_start(%esi), %eax leaq startup_64(%rax), %rax jmp *%rax -ENDPROC(efi_pe_entry) +SYM_FUNC_END(efi_pe_entry) .org 0x390 -ENTRY(efi64_stub_entry) +SYM_FUNC_START(efi64_stub_entry) movq %rdi, efi64_config(%rip) /* Handle */ movq %rsi, efi64_config+8(%rip) /* EFI System table pointer */ @@ -507,11 +508,11 @@ ENTRY(efi64_stub_entry) movq %rdx, %rsi jmp handover_entry -ENDPROC(efi64_stub_entry) +SYM_FUNC_END(efi64_stub_entry) #endif .text -.Lrelocated: +SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated) /* * Clear BSS (stack is currently empty) @@ -540,6 +541,7 @@ ENDPROC(efi64_stub_entry) * Jump to the decompressed kernel. */ jmp *%rax +SYM_FUNC_END(.Lrelocated) /* * Adjust the global offset table @@ -570,7 +572,7 @@ ENDPROC(efi64_stub_entry) * ECX contains the base address of the trampoline memory. * Non zero RDX means trampoline needs to enable 5-level paging. */ -ENTRY(trampoline_32bit_src) +SYM_CODE_START(trampoline_32bit_src) /* Set up data and stack segments */ movl $__KERNEL_DS, %eax movl %eax, %ds @@ -633,11 +635,13 @@ ENTRY(trampoline_32bit_src) movl %eax, %cr0 lret +SYM_CODE_END(trampoline_32bit_src) .code64 -.Lpaging_enabled: +SYM_FUNC_START_LOCAL_NOALIGN(.Lpaging_enabled) /* Return from the trampoline */ jmp *%rdi +SYM_FUNC_END(.Lpaging_enabled) /* * The trampoline code has a size limit. @@ -647,20 +651,22 @@ ENTRY(trampoline_32bit_src) .org trampoline_32bit_src + TRAMPOLINE_32BIT_CODE_SIZE .code32 -.Lno_longmode: +SYM_FUNC_START_LOCAL_NOALIGN(.Lno_longmode) /* This isn't an x86-64 CPU, so hang intentionally, we cannot continue */ 1: hlt jmp 1b +SYM_FUNC_END(.Lno_longmode) #include "../../kernel/verify_cpu.S" .data -gdt64: +SYM_DATA_START_LOCAL(gdt64) .word gdt_end - gdt .quad 0 +SYM_DATA_END(gdt64) .balign 8 -gdt: +SYM_DATA_START_LOCAL(gdt) .word gdt_end - gdt .long gdt .word 0 @@ -669,25 +675,24 @@ gdt: .quad 0x00cf92000000ffff /* __KERNEL_DS */ .quad 0x0080890000000000 /* TS descriptor */ .quad 0x0000000000000000 /* TS continued */ -gdt_end: +SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end) #ifdef CONFIG_EFI_STUB -efi_config: - .quad 0 +SYM_DATA_LOCAL(efi_config, .quad 0) #ifdef CONFIG_EFI_MIXED - .global efi32_config -efi32_config: +SYM_DATA_START(efi32_config) .fill 5,8,0 .quad efi64_thunk .byte 0 +SYM_DATA_END(efi32_config) #endif - .global efi64_config -efi64_config: +SYM_DATA_START(efi64_config) .fill 5,8,0 .quad efi_call .byte 1 +SYM_DATA_END(efi64_config) #endif /* CONFIG_EFI_STUB */ /* @@ -695,23 +700,21 @@ efi64_config: */ .bss .balign 4 -boot_heap: - .fill BOOT_HEAP_SIZE, 1, 0 -boot_stack: +SYM_DATA_LOCAL(boot_heap, .fill BOOT_HEAP_SIZE, 1, 0) + +SYM_DATA_START_LOCAL(boot_stack) .fill BOOT_STACK_SIZE, 1, 0 -boot_stack_end: +SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end) /* * Space for page tables (not in .bss so not zeroed) */ .section ".pgtable","a",@nobits .balign 4096 -pgtable: - .fill BOOT_PGT_SIZE, 1, 0 +SYM_DATA_LOCAL(pgtable, .fill BOOT_PGT_SIZE, 1, 0) /* * The page table is going to be used instead of page table in the trampoline * memory. */ -top_pgtable: - .fill PAGE_SIZE, 1, 0 +SYM_DATA_LOCAL(top_pgtable, .fill PAGE_SIZE, 1, 0) |