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体验新版 GitCode,发现更多精彩内容 >>
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b1fd1f69
编写于
1月 25, 1997
作者:
M
Marc G. Fournier
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remove asm/bitops.h, as its causing more problems then it fixes.
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9921eae7
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-41
src/backend/port/linux/asm/bitops.h
src/backend/port/linux/asm/bitops.h
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src/backend/port/linux/asm/bitops.h
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9921eae7
/* This is a hack that lets us use the -Wmissing-prototypes compile option.
A bug or weakness in Linux's asm/bitops.h file makes it define a bunch
of inline functions without first declaring a prototype. This causes
-Wmissing-prototypes to generate warnings. These warnings are distracting
and, in the case of -Werror, fatal.
asm/bitops.h gets included by the Linux C library sem.h, which is included
in several Postgres backend source files.
Until Linux is fixed, we have our own version of asm/bitops.h that gets
included first because it is in a directory mentioned in a -I option,
whereas the Linux asm/bitops.h is in a standard include directory. (This
is GNU C preprocessor function).
Our asm/bitops.h declares prototypes and then includes the Linux
asm/bitops.h. If Linux changes these functions, our asm/bitops.h will
stop compiling and will have to be updated.
-Bryan 1996.11.17
*/
#ifndef POSTGRES_BITOPS_H
#define POSTGRES_BITOPS_H
#ifdef __SMP__
#define PG_BITOPS_VOLATILE volatile
#else
#define PG_BITOPS_VOLATILE
#endif
extern
__inline__
int
set_bit
(
int
nr
,
PG_BITOPS_VOLATILE
void
*
addr
);
extern
__inline__
int
clear_bit
(
int
nr
,
PG_BITOPS_VOLATILE
void
*
addr
);
extern
__inline__
int
change_bit
(
int
nr
,
PG_BITOPS_VOLATILE
void
*
addr
);
extern
__inline__
int
test_bit
(
int
nr
,
const
PG_BITOPS_VOLATILE
void
*
addr
);
extern
__inline__
int
find_first_zero_bit
(
void
*
addr
,
unsigned
size
);
extern
__inline__
int
find_next_zero_bit
(
void
*
addr
,
int
size
,
int
offset
);
extern
__inline__
unsigned
long
ffz
(
unsigned
long
word
);
#include_next <asm/bitops.h>
#endif
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