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* config/arm/linux-atomic.c (SUBWORD_SYNC_OP, SUBWORD_VAL_CAS)
	(SUBWORD_TEST_AND_SET): Use signed char/short types instead of
	unsigned char/unsigned short.
	(__sync_val_compare_and_swap_{1,2}): Handle signed argument.

From-SVN: r197806
This commit is contained in:
Julian Brown 2013-04-11 14:22:54 +00:00 • committed by Julian Brown
parent 1d42c1ec47
commit b6b9af2f11
2 changed files with 38 additions and 31 deletions
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7
libgcc/ChangeLog
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@ -1,3 +1,10 @@
2013-04-10 Julian Brown <julian@codesourcery.com>
* config/arm/linux-atomic.c (SUBWORD_SYNC_OP, SUBWORD_VAL_CAS)
(SUBWORD_TEST_AND_SET): Use signed char/short types instead of
unsigned char/unsigned short.
(__sync_val_compare_and_swap_{1,2}): Handle signed argument.
2013-04-06 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR other/55274

62
libgcc/config/arm/linux-atomic.c
View file

@ -97,19 +97,19 @@ FETCH_AND_OP_WORD (nand, ~, &)
return (RETURN & mask) >> shift; \
}
SUBWORD_SYNC_OP (add, , +, unsigned short, 2, oldval)
SUBWORD_SYNC_OP (sub, , -, unsigned short, 2, oldval)
SUBWORD_SYNC_OP (or, , |, unsigned short, 2, oldval)
SUBWORD_SYNC_OP (and, , &, unsigned short, 2, oldval)
SUBWORD_SYNC_OP (xor, , ^, unsigned short, 2, oldval)
SUBWORD_SYNC_OP (nand, ~, &, unsigned short, 2, oldval)
SUBWORD_SYNC_OP (add, , +, short, 2, oldval)
SUBWORD_SYNC_OP (sub, , -, short, 2, oldval)
SUBWORD_SYNC_OP (or, , |, short, 2, oldval)
SUBWORD_SYNC_OP (and, , &, short, 2, oldval)
SUBWORD_SYNC_OP (xor, , ^, short, 2, oldval)
SUBWORD_SYNC_OP (nand, ~, &, short, 2, oldval)
SUBWORD_SYNC_OP (add, , +, unsigned char, 1, oldval)
SUBWORD_SYNC_OP (sub, , -, unsigned char, 1, oldval)
SUBWORD_SYNC_OP (or, , |, unsigned char, 1, oldval)
SUBWORD_SYNC_OP (and, , &, unsigned char, 1, oldval)
SUBWORD_SYNC_OP (xor, , ^, unsigned char, 1, oldval)
SUBWORD_SYNC_OP (nand, ~, &, unsigned char, 1, oldval)
SUBWORD_SYNC_OP (add, , +, signed char, 1, oldval)
SUBWORD_SYNC_OP (sub, , -, signed char, 1, oldval)
SUBWORD_SYNC_OP (or, , |, signed char, 1, oldval)
SUBWORD_SYNC_OP (and, , &, signed char, 1, oldval)
SUBWORD_SYNC_OP (xor, , ^, signed char, 1, oldval)
SUBWORD_SYNC_OP (nand, ~, &, signed char, 1, oldval)
#define OP_AND_FETCH_WORD(OP, PFX_OP, INF_OP) \
int HIDDEN \
@ -132,19 +132,19 @@ OP_AND_FETCH_WORD (and, , &)
OP_AND_FETCH_WORD (xor, , ^)
OP_AND_FETCH_WORD (nand, ~, &)
SUBWORD_SYNC_OP (add, , +, unsigned short, 2, newval)
SUBWORD_SYNC_OP (sub, , -, unsigned short, 2, newval)
SUBWORD_SYNC_OP (or, , |, unsigned short, 2, newval)
SUBWORD_SYNC_OP (and, , &, unsigned short, 2, newval)
SUBWORD_SYNC_OP (xor, , ^, unsigned short, 2, newval)
SUBWORD_SYNC_OP (nand, ~, &, unsigned short, 2, newval)
SUBWORD_SYNC_OP (add, , +, short, 2, newval)
SUBWORD_SYNC_OP (sub, , -, short, 2, newval)
SUBWORD_SYNC_OP (or, , |, short, 2, newval)
SUBWORD_SYNC_OP (and, , &, short, 2, newval)
SUBWORD_SYNC_OP (xor, , ^, short, 2, newval)
SUBWORD_SYNC_OP (nand, ~, &, short, 2, newval)
SUBWORD_SYNC_OP (add, , +, unsigned char, 1, newval)
SUBWORD_SYNC_OP (sub, , -, unsigned char, 1, newval)
SUBWORD_SYNC_OP (or, , |, unsigned char, 1, newval)
SUBWORD_SYNC_OP (and, , &, unsigned char, 1, newval)
SUBWORD_SYNC_OP (xor, , ^, unsigned char, 1, newval)
SUBWORD_SYNC_OP (nand, ~, &, unsigned char, 1, newval)
SUBWORD_SYNC_OP (add, , +, signed char, 1, newval)
SUBWORD_SYNC_OP (sub, , -, signed char, 1, newval)
SUBWORD_SYNC_OP (or, , |, signed char, 1, newval)
SUBWORD_SYNC_OP (and, , &, signed char, 1, newval)
SUBWORD_SYNC_OP (xor, , ^, signed char, 1, newval)
SUBWORD_SYNC_OP (nand, ~, &, signed char, 1, newval)
int HIDDEN
__sync_val_compare_and_swap_4 (int *ptr, int oldval, int newval)
@ -181,7 +181,7 @@ __sync_val_compare_and_swap_4 (int *ptr, int oldval, int newval)
actual_oldval = *wordptr; \
\
if (__builtin_expect (((actual_oldval & mask) >> shift) != \
(unsigned int) oldval, 0)) \
((unsigned int) oldval & MASK_##WIDTH), 0)) \
return (actual_oldval & mask) >> shift; \
\
actual_newval = (actual_oldval & ~mask) \
@ -195,8 +195,8 @@ __sync_val_compare_and_swap_4 (int *ptr, int oldval, int newval)
} \
}
SUBWORD_VAL_CAS (unsigned short, 2)
SUBWORD_VAL_CAS (unsigned char, 1)
SUBWORD_VAL_CAS (short, 2)
SUBWORD_VAL_CAS (signed char, 1)
typedef unsigned char bool;
@ -217,8 +217,8 @@ __sync_bool_compare_and_swap_4 (int *ptr, int oldval, int newval)
return (oldval == actual_oldval); \
}
SUBWORD_BOOL_CAS (unsigned short, 2)
SUBWORD_BOOL_CAS (unsigned char, 1)
SUBWORD_BOOL_CAS (short, 2)
SUBWORD_BOOL_CAS (signed char, 1)
void HIDDEN
__sync_synchronize (void)
@ -260,8 +260,8 @@ __sync_lock_test_and_set_4 (int *ptr, int val)
return (oldval & mask) >> shift; \
}
SUBWORD_TEST_AND_SET (unsigned short, 2)
SUBWORD_TEST_AND_SET (unsigned char, 1)
SUBWORD_TEST_AND_SET (short, 2)
SUBWORD_TEST_AND_SET (signed char, 1)
#define SYNC_LOCK_RELEASE(TYPE, WIDTH) \
void HIDDEN \