sh: fix debug trap failure to process signals before return to user
[ Upstream commit 96a598996f
]
When responding to a debug trap (breakpoint) in userspace, the
kernel's trap handler raised SIGTRAP but returned from the trap via a
code path that ignored pending signals, resulting in an infinite loop
re-executing the trapping instruction.
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
4ee9130f64
commit
d9179b4aa4
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@ -255,7 +255,7 @@ debug_trap:
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mov.l @r8, r8
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jsr @r8
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nop
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bra __restore_all
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bra ret_from_exception
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nop
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CFI_ENDPROC
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