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ARC: handle gcc generated __builtin_trap for older compiler

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ARC gcc prior to GNU 2018.03 release didn't have a target specific
__builtin_trap() implementation, generating default abort() call.

Implement the abort() call - emulating what newer gcc does for the same,
as suggested by Arnd.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta 2017-12-08 08:45:57 -08:00
parent f5a16b93e6
commit af1be2e212
1 changed files with 8 additions and 0 deletions
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8
arch/arc/kernel/traps.c
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@ -161,3 +161,11 @@ void do_insterror_or_kprobe(unsigned long address, struct pt_regs *regs)
insterror_is_error(address, regs);
}
/*
* abort() call generated by older gcc for __builtin_trap()
*/
void abort(void)
{
__asm__ __volatile__("trap_s 5\n");
}