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i386: expand exception 3 DO_TRAP macro

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The int3 exception was already takes as an interrupt and
do_int3 does not fit in the new DO_ERROR macro. This patch
just expands the DO_TRAP macro and rearranges the code a
bit.

No functional changes intended.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Alexander van Heukelum 2008-09-09 21:55:58 +02:00 committed by Ingo Molnar
parent 976382dcbe
commit b94da1e4b7
1 changed files with 6 additions and 5 deletions
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11
arch/x86/kernel/traps_32.c
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@ -633,9 +633,6 @@ void do_##name(struct pt_regs *regs, long error_code) \
}
DO_VM86_ERROR_INFO(0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip)
#ifndef CONFIG_KPROBES
DO_VM86_TRAP(3, SIGTRAP, "int3", int3)
#endif
DO_VM86_TRAP(4, SIGSEGV, "overflow", overflow)
DO_VM86_TRAP(5, SIGSEGV, "bounds", bounds)
DO_TRAP_INFO(6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0)
@ -907,9 +904,9 @@ void restart_nmi(void)
acpi_nmi_enable();
}
#ifdef CONFIG_KPROBES
void __kprobes do_int3(struct pt_regs *regs, long error_code)
{
#ifdef CONFIG_KPROBES
trace_hardirqs_fixup();
if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP)
@ -920,10 +917,14 @@ void __kprobes do_int3(struct pt_regs *regs, long error_code)
* disabled. Normal trap handlers don't.
*/
conditional_sti(regs);
#else
if (notify_die(DIE_TRAP, "int3", regs, error_code, 3, SIGTRAP)
== NOTIFY_STOP)
return;
#endif
do_trap(3, SIGTRAP, "int3", 1, regs, error_code, NULL);
}
#endif
/*
* Our handling of the processor debug registers is non-trivial.