Commit-ID: 42c748bb2544f21c3d115240527fe4478e193641 Gitweb: http://git.kernel.org/tip/42c748bb2544f21c3d115240527fe4478e193641 Author: Borislav Petkov <b...@suse.de> AuthorDate: Thu, 7 Apr 2016 17:31:50 -0700 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Wed, 13 Apr 2016 10:20:42 +0200
x86/entry/64: Make gs_change a local label ... so that it doesn't appear in objdump output. Signed-off-by: Borislav Petkov <b...@suse.de> Signed-off-by: Andy Lutomirski <l...@kernel.org> Cc: Andy Lutomirski <l...@amacapital.net> Cc: Borislav Petkov <b...@alien8.de> Cc: Brian Gerst <brge...@gmail.com> Cc: Denys Vlasenko <dvlas...@redhat.com> Cc: H. Peter Anvin <h...@zytor.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Rudolf Marek <r.ma...@assembler.cz> Cc: Thomas Gleixner <t...@linutronix.de> Link: http://lkml.kernel.org/r/b9c532a0e5f8d56dede2bd59767d40024d5a75e2.1460075211.git.l...@kernel.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- arch/x86/entry/entry_64.S | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 64d2033..1693c17 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -781,7 +781,7 @@ ENTRY(native_load_gs_index) pushfq DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI) SWAPGS -gs_change: +.Lgs_change: movl %edi, %gs 2: ALTERNATIVE "", "mfence", X86_BUG_SWAPGS_FENCE SWAPGS @@ -789,7 +789,7 @@ gs_change: ret END(native_load_gs_index) - _ASM_EXTABLE(gs_change, bad_gs) + _ASM_EXTABLE(.Lgs_change, bad_gs) .section .fixup, "ax" /* running with kernelgs */ bad_gs: @@ -1019,13 +1019,13 @@ ENTRY(error_entry) movl %ecx, %eax /* zero extend */ cmpq %rax, RIP+8(%rsp) je .Lbstep_iret - cmpq $gs_change, RIP+8(%rsp) + cmpq $.Lgs_change, RIP+8(%rsp) jne .Lerror_entry_done /* - * hack: gs_change can fail with user gsbase. If this happens, fix up + * hack: .Lgs_change can fail with user gsbase. If this happens, fix up * gsbase and proceed. We'll fix up the exception and land in - * gs_change's error handler with kernel gsbase. + * .Lgs_change's error handler with kernel gsbase. */ jmp .Lerror_entry_from_usermode_swapgs
