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authorDenys Vlasenko2015-04-21 18:03:13 +0200
committerIngo Molnar2015-04-22 08:41:44 +0200
commitac7f5dfb0348a33b2ea92a0c477103c4db45ad4e (patch)
tree1ca083075465ef080abd89ffc5a7ce164a038367 /arch
parent17be0aec74fb036eb4eb32c2268f3420a034762b (diff)
x86/asm/entry/64: Merge 32-bit execve stubs with x32 ones, as they are identical
Run-tested. Suggested-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Drewry <wad@chromium.org> Link: http://lkml.kernel.org/r/1429632194-13445-1-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/entry_64.S23
1 files changed, 5 insertions, 18 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 3c78a15a537d..e952f6bf1d6d 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -525,40 +525,27 @@ GLOBAL(stub_execveat)
CFI_ENDPROC
END(stub_execveat)
-#ifdef CONFIG_X86_X32_ABI
+#if defined(CONFIG_X86_X32_ABI) || defined(CONFIG_IA32_EMULATION)
.align 8
GLOBAL(stub_x32_execve)
+GLOBAL(stub32_execve)
CFI_STARTPROC
DEFAULT_FRAME 0, 8
call compat_sys_execve
jmp return_from_execve
CFI_ENDPROC
+END(stub32_execve)
END(stub_x32_execve)
.align 8
GLOBAL(stub_x32_execveat)
- CFI_STARTPROC
- DEFAULT_FRAME 0, 8
- call compat_sys_execveat
- jmp return_from_execve
- CFI_ENDPROC
-END(stub_x32_execveat)
-#endif
-
-#ifdef CONFIG_IA32_EMULATION
- .align 8
-GLOBAL(stub32_execve)
- CFI_STARTPROC
- call compat_sys_execve
- jmp return_from_execve
- CFI_ENDPROC
-END(stub32_execve)
- .align 8
GLOBAL(stub32_execveat)
CFI_STARTPROC
+ DEFAULT_FRAME 0, 8
call compat_sys_execveat
jmp return_from_execve
CFI_ENDPROC
END(stub32_execveat)
+END(stub_x32_execveat)
#endif
/*