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* misc/sys/cdefs.h: Define __attribute_malloc__ according to
	available gcc version.
	* string/string.h: Mark strdup, __strdup, and strndup with
	__attribute_malloc__.
	* stdlib/stdlib.h: Make malloc, calloc, realloc, and valloc with
	__attribute_malloc__.
	* malloc/malloc.h: Make malloc, calloc, realloc, valloc, pvallc,
	__morecore, and __default_morecore with __attribute_malloc__.
	Provide default definition for __attribute_malloc__.
	* libio/stdio.h: Make tempnam with __attribute_malloc__.
This commit is contained in:
Ulrich Drepper 1999-12-19 08:08:59 +00:00
parent 778c59c850
commit e9e9b245b9
7 changed files with 50 additions and 16 deletions
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11
ChangeLog
View File

@ -1,5 +1,16 @@
1999-12-18 Ulrich Drepper <drepper@cygnus.com>
* misc/sys/cdefs.h: Define __attribute_malloc__ according to
available gcc version.
* string/string.h: Mark strdup, __strdup, and strndup with
__attribute_malloc__.
* stdlib/stdlib.h: Make malloc, calloc, realloc, and valloc with
__attribute_malloc__.
* malloc/malloc.h: Make malloc, calloc, realloc, valloc, pvallc,
__morecore, and __default_morecore with __attribute_malloc__.
Provide default definition for __attribute_malloc__.
* libio/stdio.h: Make tempnam with __attribute_malloc__.
* include/unistd.h: Declare __libc_open64, __libc_lseek64,
__libc_pread, __libc_pread64, __libc_pwrite, and __libc_pwrite64.
* io/Versions: Export __libc_open64 and __libc_lseek64.

3
include/unistd.h
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@ -5,6 +5,7 @@
extern int __access (__const char *__name, int __type);
extern int __euidaccess (__const char *__name, int __type);
extern int __libc_open64 (const char *file, int oflag, ...);
extern int __libc_open (const char *file, int oflag, ...);
extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence);
extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
@ -19,6 +20,8 @@ extern ssize_t __libc_pwrite (int __fd, __const void *__buf, size_t __n,
__off_t __offset);
extern ssize_t __libc_pwrite64 (int __fd, __const void *__buf, size_t __n,
__off64_t __offset);
extern ssize_t __libc_read (int __fd, void *__buf, size_t __n);
extern ssize_t __libc_write (int __fd, __const void *__buf, size_t __n);
extern int __pipe (int __pipedes[2]);
extern unsigned int __sleep (unsigned int __seconds);
extern int __chown (__const char *__file,

3
libio/stdio.h
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@ -156,7 +156,8 @@ extern char *tmpnam_r (char *__s) __THROW;
If not and if DIR is not NULL, that value is checked. If that fails,
P_tmpdir is tried and finally "/tmp". The storage for the filename
is allocated by `malloc'. */
extern char *tempnam (__const char *__dir, __const char *__pfx) __THROW;
extern char *tempnam (__const char *__dir, __const char *__pfx)
__THROW __attribute_malloc__;
#endif

22
malloc/malloc.h
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@ -55,6 +55,8 @@
/* Used by GNU libc internals. */
# define __malloc_size_t size_t
# define __malloc_ptrdiff_t ptrdiff_t
#else
# define __attribute_malloc__
#endif
#ifdef __GNUC__
@ -114,14 +116,17 @@ extern void ptmalloc_init __MALLOC_P ((void));
#endif
/* Allocate SIZE bytes of memory. */
extern __malloc_ptr_t malloc __MALLOC_P ((size_t __size));
extern __malloc_ptr_t malloc __MALLOC_P ((size_t __size)) __attribute_malloc__;
/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
extern __malloc_ptr_t calloc __MALLOC_P ((size_t __nmemb, size_t __size));
extern __malloc_ptr_t calloc __MALLOC_P ((size_t __nmemb, size_t __size))
__attribute_malloc__;
/* Re-allocate the previously allocated block in __ptr, making the new
block SIZE bytes long. */
extern __malloc_ptr_t realloc __MALLOC_P ((__malloc_ptr_t __ptr, size_t __size));
extern __malloc_ptr_t realloc __MALLOC_P ((__malloc_ptr_t __ptr,
size_t __size))
__attribute_malloc__;
/* Free a block allocated by `malloc', `realloc' or `calloc'. */
extern void free __MALLOC_P ((__malloc_ptr_t __ptr));
@ -133,18 +138,21 @@ extern void cfree __MALLOC_P ((__malloc_ptr_t __ptr));
extern __malloc_ptr_t memalign __MALLOC_P ((size_t __alignment, size_t __size));
/* Allocate SIZE bytes on a page boundary. */
extern __malloc_ptr_t valloc __MALLOC_P ((size_t __size));
extern __malloc_ptr_t valloc __MALLOC_P ((size_t __size)) __attribute_malloc__;
/* Equivalent to valloc(minimum-page-that-holds(n)), that is, round up
__size to nearest pagesize. */
extern __malloc_ptr_t pvalloc __MALLOC_P ((size_t __size));
extern __malloc_ptr_t pvalloc __MALLOC_P ((size_t __size))
__attribute_malloc__;
/* Underlying allocation function; successive calls should return
contiguous pieces of memory. */
extern __malloc_ptr_t (*__morecore) __MALLOC_PMT ((ptrdiff_t __size));
extern __malloc_ptr_t (*__morecore) __MALLOC_PMT ((ptrdiff_t __size))
__attribute_malloc__;
/* Default value of `__morecore'. */
extern __malloc_ptr_t __default_morecore __MALLOC_P ((ptrdiff_t __size));
extern __malloc_ptr_t __default_morecore __MALLOC_P ((ptrdiff_t __size))
__attribute_malloc__;
/* SVID2/XPG mallinfo structure */
struct mallinfo {

11
misc/sys/cdefs.h
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@ -136,7 +136,16 @@
they are omitted for compilers that don't understand it. */
#if !defined __GNUC__ || __GNUC__ < 2
# define __attribute__(xyz) /* Ignore. */
# define __attribute__(xyz) /* Ignore */
/* At some point during the gcc 2.96 development the `malloc' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */
# if __GNUC_PREREQ (2,96)
# define __attribute_malloc__ __attribute__ ((__malloc__))
# else
# define __attribute_malloc__ /* Ignore */
# endif
#endif

9
stdlib/stdlib.h
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@ -469,15 +469,16 @@ extern int lcong48_r (unsigned short int __param[7],
#ifndef __malloc_and_calloc_defined
#define __malloc_and_calloc_defined
/* Allocate SIZE bytes of memory. */
extern void *malloc (size_t __size) __THROW;
extern void *malloc (size_t __size) __THROW __attribute_malloc__;
/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
extern void *calloc (size_t __nmemb, size_t __size) __THROW;
extern void *calloc (size_t __nmemb, size_t __size)
__THROW __attribute_malloc__;
#endif
#ifndef __need_malloc_and_calloc
/* Re-allocate the previously allocated block
in PTR, making the new block SIZE bytes long. */
extern void *realloc (void *__ptr, size_t __size) __THROW;
extern void *realloc (void *__ptr, size_t __size) __THROW __attribute_malloc__;
/* Free a block allocated by `malloc', `realloc' or `calloc'. */
extern void free (void *__ptr) __THROW;
@ -492,7 +493,7 @@ extern void cfree (void *__ptr) __THROW;
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Allocate SIZE bytes on a page boundary. The storage cannot be freed. */
extern void *valloc (size_t __size) __THROW;
extern void *valloc (size_t __size) __THROW __attribute_malloc__;
#endif

7
string/string.h
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@ -112,15 +112,16 @@ extern size_t __strxfrm_l (char *__dest, __const char *__src, size_t __n,
#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Duplicate S, returning an identical malloc'd string. */
extern char *__strdup (__const char *__s) __THROW;
extern char *strdup (__const char *__s) __THROW;
extern char *__strdup (__const char *__s) __THROW __attribute_malloc__;
extern char *strdup (__const char *__s) __THROW __attribute_malloc__;
#endif
/* Return a malloc'd copy of at most N bytes of STRING. The
resultant string is terminated even if no null terminator
appears before STRING[N]. */
#if defined __USE_GNU
extern char *strndup (__const char *__string, size_t __n) __THROW;
extern char *strndup (__const char *__string, size_t __n)
__THROW __attribute_malloc__;
#endif
#if defined __USE_GNU && defined __GNUC__