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| author |   Jiri Slaby <jslaby@suse.cz> | 2019-10-11 13:50:50 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2019-10-18 10:40:11 +0200 |
| commit | cc66936e504a5b91dda52fda90203e174a7a71aa (patch) | |
| tree | f7ad635cd005f80e9e0d4a4b737cf8a68e069013 /arch/x86/entry/entry_64.S | |
| parent | x86/asm: Annotate aliases (diff) | |
| download | wireguard-linux-cc66936e504a5b91dda52fda90203e174a7a71aa.tar.xz wireguard-linux-cc66936e504a5b91dda52fda90203e174a7a71aa.zip | |
x86/asm/entry: Annotate interrupt symbols properly
* annotate functions properly by SYM_CODE_START, SYM_CODE_START_LOCAL*
and SYM_CODE_END -- these are not C-like functions, so they have to
be annotated using CODE.
* use SYM_INNER_LABEL* for labels being in the middle of other functions
This prevents nested labels annotations.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191011115108.12392-11-jslaby@suse.cz
Diffstat (limited to 'arch/x86/entry/entry_64.S')
| -rw-r--r-- | arch/x86/entry/entry_64.S | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index db43526cecfa..607e25f54ff4 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -589,18 +589,18 @@ _ASM_NOKPROBE(interrupt_entry) * The interrupt stubs push (~vector+0x80) onto the stack and * then jump to common_spurious/interrupt. */ -common_spurious: +SYM_CODE_START_LOCAL(common_spurious) addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */ call interrupt_entry UNWIND_HINT_REGS indirect=1 call smp_spurious_interrupt /* rdi points to pt_regs */ jmp ret_from_intr -END(common_spurious) +SYM_CODE_END(common_spurious) _ASM_NOKPROBE(common_spurious) /* common_interrupt is a hotpath. Align it */ .p2align CONFIG_X86_L1_CACHE_SHIFT -common_interrupt: +SYM_CODE_START_LOCAL(common_interrupt) addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */ call interrupt_entry UNWIND_HINT_REGS indirect=1 @@ -695,7 +695,7 @@ GLOBAL(restore_regs_and_return_to_kernel) */ INTERRUPT_RETURN -ENTRY(native_iret) +SYM_INNER_LABEL_ALIGN(native_iret, SYM_L_GLOBAL) UNWIND_HINT_IRET_REGS /* * Are we returning to a stack segment from the LDT? Note: in @@ -706,8 +706,7 @@ ENTRY(native_iret) jnz native_irq_return_ldt #endif -.global native_irq_return_iret -native_irq_return_iret: +SYM_INNER_LABEL(native_irq_return_iret, SYM_L_GLOBAL) /* * This may fault. Non-paranoid faults on return to userspace are * handled by fixup_bad_iret. These include #SS, #GP, and #NP. @@ -789,7 +788,7 @@ native_irq_return_ldt: */ jmp native_irq_return_iret #endif -END(common_interrupt) +SYM_CODE_END(common_interrupt) _ASM_NOKPROBE(common_interrupt) /* |