Messages in this thread Patch in this message | | | From | Jiri Slaby <> | Subject | [PATCH v3 10/29] x86: assembly, annotate relocate_kernel | Date | Fri, 21 Apr 2017 16:12:46 +0200 |
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Annotate all functions in relocate_kernel by SYM_FUNC_START, SYM_FUNC_START_LOCAL, and SYM_FUNC_END properly.
We get in return: 0000 108 FUNC GLOBAL DEFAULT 1 relocate_kernel 0070 165 FUNC LOCAL DEFAULT 1 identity_mapped 0120 53 FUNC LOCAL DEFAULT 1 virtual_mapped 0160 127 FUNC LOCAL DEFAULT 1 swap_pages
Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org --- arch/x86/kernel/relocate_kernel_32.S | 13 ++++++++----- arch/x86/kernel/relocate_kernel_64.S | 13 ++++++++----- 2 files changed, 16 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S index 77630d57e7bf..4f0f80da0454 100644 --- a/arch/x86/kernel/relocate_kernel_32.S +++ b/arch/x86/kernel/relocate_kernel_32.S @@ -37,8 +37,7 @@ #define CP_PA_BACKUP_PAGES_MAP DATA(0x1c) .text - .globl relocate_kernel -relocate_kernel: +SYM_FUNC_START(relocate_kernel) /* Save the CPU context, used for jumping back */ pushl %ebx @@ -95,8 +94,9 @@ relocate_kernel: addl $(identity_mapped - relocate_kernel), %eax pushl %eax ret +SYM_FUNC_END(relocate_kernel) -identity_mapped: +SYM_FUNC_START_LOCAL(identity_mapped) /* set return address to 0 if not preserving context */ pushl $0 /* store the start address on the stack */ @@ -193,8 +193,9 @@ identity_mapped: addl $(virtual_mapped - relocate_kernel), %eax pushl %eax ret +SYM_FUNC_END(identity_mapped) -virtual_mapped: +SYM_FUNC_START_LOCAL(virtual_mapped) movl CR4(%edi), %eax movl %eax, %cr4 movl CR3(%edi), %eax @@ -210,9 +211,10 @@ virtual_mapped: popl %esi popl %ebx ret +SYM_FUNC_END(virtual_mapped) /* Do the copies */ -swap_pages: +SYM_FUNC_START_LOCAL(swap_pages) movl 8(%esp), %edx movl 4(%esp), %ecx pushl %ebp @@ -272,6 +274,7 @@ swap_pages: popl %ebx popl %ebp ret +SYM_FUNC_END(swap_pages) .globl kexec_control_code_size .set kexec_control_code_size, . - relocate_kernel diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S index 98111b38ebfd..5138b0587816 100644 --- a/arch/x86/kernel/relocate_kernel_64.S +++ b/arch/x86/kernel/relocate_kernel_64.S @@ -40,8 +40,7 @@ .text .align PAGE_SIZE .code64 - .globl relocate_kernel -relocate_kernel: +SYM_FUNC_START(relocate_kernel) /* * %rdi indirection_page * %rsi page_list @@ -98,8 +97,9 @@ relocate_kernel: addq $(identity_mapped - relocate_kernel), %r8 pushq %r8 ret +SYM_FUNC_END(relocate_kernel) -identity_mapped: +SYM_FUNC_START_LOCAL(identity_mapped) /* set return address to 0 if not preserving context */ pushq $0 /* store the start address on the stack */ @@ -189,8 +189,9 @@ identity_mapped: movq $virtual_mapped, %rax pushq %rax ret +SYM_FUNC_END(identity_mapped) -virtual_mapped: +SYM_FUNC_START_LOCAL(virtual_mapped) movq RSP(%r8), %rsp movq CR4(%r8), %rax movq %rax, %cr4 @@ -208,9 +209,10 @@ virtual_mapped: popq %rbp popq %rbx ret +SYM_FUNC_END(virtual_mapped) /* Do the copies */ -swap_pages: +SYM_FUNC_START_LOCAL(swap_pages) movq %rdi, %rcx /* Put the page_list in %rcx */ xorl %edi, %edi xorl %esi, %esi @@ -263,6 +265,7 @@ swap_pages: jmp 0b 3: ret +SYM_FUNC_END(swap_pages) .globl kexec_control_code_size .set kexec_control_code_size, . - relocate_kernel -- 2.12.2
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