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x86/entry/entry_32: Route int3 through common_exception

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int3 is not using the common_exception path for purely historical reasons,
but there is no reason to keep it the only exception which is different.

Make it use common_exception so the upcoming changes to autogenerate the
entry stubs do not have to special case int3.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200225220217.042369808@linutronix.de
This commit is contained in:
Thomas Gleixner 2020-02-25 22:36:45 +01:00
parent 17dbedb5da
commit ac3607f92f
1 changed files with 2 additions and 8 deletions
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10
arch/x86/entry/entry_32.S
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@ -1683,14 +1683,8 @@ SYM_CODE_END(nmi)
SYM_CODE_START(int3)
ASM_CLAC
pushl $-1 # mark this as an int
SAVE_ALL switch_stacks=1
ENCODE_FRAME_POINTER
TRACE_IRQS_OFF
xorl %edx, %edx # zero error code
movl %esp, %eax # pt_regs pointer
call do_int3
jmp ret_from_exception
pushl $do_int3
jmp common_exception
SYM_CODE_END(int3)
SYM_CODE_START(general_protection)