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m68k: fix sigset_t accessor functions

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commit 34fa78b59c upstream.

The sigaddset/sigdelset/sigismember functions that are implemented with
bitfield insn cannot allow the sigset argument to be placed in a data
register since the sigset is wider than 32 bits.  Remove the "d"
constraint from the asm statements.

The effect of the bug is that sending RT signals does not work, the signal
number is truncated modulo 32.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andreas Schwab
2012-11-17 22:27:04 +01:00
committed by Greg Kroah-Hartman
parent 7e2c753a06
commit 345d88cfbd
1 changed files with 3 additions and 3 deletions
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6
arch/m68k/include/asm/signal.h
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@@ -156,7 +156,7 @@ typedef struct sigaltstack {
static inline void sigaddset(sigset_t *set, int _sig)
{
asm ("bfset %0{%1,#1}"
: "+od" (*set)
: "+o" (*set)
: "id" ((_sig - 1) ^ 31)
: "cc");
}
@@ -164,7 +164,7 @@ static inline void sigaddset(sigset_t *set, int _sig)
static inline void sigdelset(sigset_t *set, int _sig)
{
asm ("bfclr %0{%1,#1}"
: "+od" (*set)
: "+o" (*set)
: "id" ((_sig - 1) ^ 31)
: "cc");
}
@@ -180,7 +180,7 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
int ret;
asm ("bfextu %1{%2,#1},%0"
: "=d" (ret)
: "od" (*set), "id" ((_sig-1) ^ 31)
: "o" (*set), "id" ((_sig-1) ^ 31)
: "cc");
return ret;
}