diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/signal.h | 59 |
1 files changed, 22 insertions, 37 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h index c00516609f3f..53d9e4324557 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -70,37 +70,24 @@ static inline int sigfindinword(unsigned long word) #define _SIG_SET_BINOP(name, op) \ static inline void name(sigset_t *r, const sigset_t *a, const sigset_t *b) \ { \ + extern void _NSIG_WORDS_is_unsupported_size(void); \ unsigned long a0, a1, a2, a3, b0, b1, b2, b3; \ - unsigned long i; \ \ - for (i = 0; i < _NSIG_WORDS/4; ++i) { \ - a0 = a->sig[4*i+0]; a1 = a->sig[4*i+1]; \ - a2 = a->sig[4*i+2]; a3 = a->sig[4*i+3]; \ - b0 = b->sig[4*i+0]; b1 = b->sig[4*i+1]; \ - b2 = b->sig[4*i+2]; b3 = b->sig[4*i+3]; \ - r->sig[4*i+0] = op(a0, b0); \ - r->sig[4*i+1] = op(a1, b1); \ - r->sig[4*i+2] = op(a2, b2); \ - r->sig[4*i+3] = op(a3, b3); \ - } \ - switch (_NSIG_WORDS % 4) { \ - case 3: \ - a0 = a->sig[4*i+0]; a1 = a->sig[4*i+1]; a2 = a->sig[4*i+2]; \ - b0 = b->sig[4*i+0]; b1 = b->sig[4*i+1]; b2 = b->sig[4*i+2]; \ - r->sig[4*i+0] = op(a0, b0); \ - r->sig[4*i+1] = op(a1, b1); \ - r->sig[4*i+2] = op(a2, b2); \ - break; \ + switch (_NSIG_WORDS) { \ + case 4: \ + a3 = a->sig[3]; a2 = a->sig[2]; \ + b3 = b->sig[3]; b2 = b->sig[2]; \ + r->sig[3] = op(a3, b3); \ + r->sig[2] = op(a2, b2); \ case 2: \ - a0 = a->sig[4*i+0]; a1 = a->sig[4*i+1]; \ - b0 = b->sig[4*i+0]; b1 = b->sig[4*i+1]; \ - r->sig[4*i+0] = op(a0, b0); \ - r->sig[4*i+1] = op(a1, b1); \ - break; \ + a1 = a->sig[1]; b1 = b->sig[1]; \ + r->sig[1] = op(a1, b1); \ case 1: \ - a0 = a->sig[4*i+0]; b0 = b->sig[4*i+0]; \ - r->sig[4*i+0] = op(a0, b0); \ + a0 = a->sig[0]; b0 = b->sig[0]; \ + r->sig[0] = op(a0, b0); \ break; \ + default: \ + _NSIG_WORDS_is_unsupported_size(); \ } \ } @@ -121,18 +108,16 @@ _SIG_SET_BINOP(signandsets, _sig_nand) #define _SIG_SET_OP(name, op) \ static inline void name(sigset_t *set) \ { \ - unsigned long i; \ + extern void _NSIG_WORDS_is_unsupported_size(void); \ \ - for (i = 0; i < _NSIG_WORDS/4; ++i) { \ - set->sig[4*i+0] = op(set->sig[4*i+0]); \ - set->sig[4*i+1] = op(set->sig[4*i+1]); \ - set->sig[4*i+2] = op(set->sig[4*i+2]); \ - set->sig[4*i+3] = op(set->sig[4*i+3]); \ - } \ - switch (_NSIG_WORDS % 4) { \ - case 3: set->sig[4*i+2] = op(set->sig[4*i+2]); \ - case 2: set->sig[4*i+1] = op(set->sig[4*i+1]); \ - case 1: set->sig[4*i+0] = op(set->sig[4*i+0]); \ + switch (_NSIG_WORDS) { \ + case 4: set->sig[3] = op(set->sig[3]); \ + set->sig[2] = op(set->sig[2]); \ + case 2: set->sig[1] = op(set->sig[1]); \ + case 1: set->sig[0] = op(set->sig[0]); \ + break; \ + default: \ + _NSIG_WORDS_is_unsupported_size(); \ } \ } |