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x86/asm: Make some functions local labels

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Boris suggests to make a local label (prepend ".L") to these functions
to eliminate them from the symbol table. These are functions with very
local names and really should not be visible anywhere.

Note that objtool won't see these functions anymore (to generate ORC
debug info). But all the functions are not annotated with ENDPROC, so
they won't have objtool's attention anyway.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Cao jin <caoj.fnst@cn.fujitsu.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steve Winslow <swinslow@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Huang <wei@redhat.com>
Cc: x86-ml <x86@kernel.org>
Cc: Xiaoyao Li <xiaoyao.li@linux.intel.com>
Link: https://lkml.kernel.org/r/20190906075550.23435-2-jslaby@suse.cz
This commit is contained in:
Jiri Slaby
2019-09-06 09:55:50 +02:00
committed by Borislav Petkov
parent 559ceeed62
commit 98ededb61f
6 changed files with 39 additions and 39 deletions
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16
arch/x86/lib/getuser.S
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@@ -115,7 +115,7 @@ ENDPROC(__get_user_8)
EXPORT_SYMBOL(__get_user_8)
bad_get_user_clac:
.Lbad_get_user_clac:
ASM_CLAC
bad_get_user:
xor %edx,%edx
@@ -123,7 +123,7 @@ bad_get_user:
ret
#ifdef CONFIG_X86_32
bad_get_user_8_clac:
.Lbad_get_user_8_clac:
ASM_CLAC
bad_get_user_8:
xor %edx,%edx
@@ -132,12 +132,12 @@ bad_get_user_8:
ret
#endif
_ASM_EXTABLE_UA(1b, bad_get_user_clac)
_ASM_EXTABLE_UA(2b, bad_get_user_clac)
_ASM_EXTABLE_UA(3b, bad_get_user_clac)
_ASM_EXTABLE_UA(1b, .Lbad_get_user_clac)
_ASM_EXTABLE_UA(2b, .Lbad_get_user_clac)
_ASM_EXTABLE_UA(3b, .Lbad_get_user_clac)
#ifdef CONFIG_X86_64
_ASM_EXTABLE_UA(4b, bad_get_user_clac)
_ASM_EXTABLE_UA(4b, .Lbad_get_user_clac)
#else
_ASM_EXTABLE_UA(4b, bad_get_user_8_clac)
_ASM_EXTABLE_UA(5b, bad_get_user_8_clac)
_ASM_EXTABLE_UA(4b, .Lbad_get_user_8_clac)
_ASM_EXTABLE_UA(5b, .Lbad_get_user_8_clac)
#endif