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Port --enable-gcc-warnings to bleeding-edge glibc

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Bleeding-edge glibc sets emacs_cv_var_doug_lea_malloc to 'no'.
Do not merge to master.
* configure.ac: Check for valloc decl when compiling gmalloc.c.
* src/gmalloc.c (emacs_abort) [emacs]: Adjust decl to match
what is in lisp.h.  Remove duplicate decl.
(aligned_alloc): #undef before defining.
(aligned_alloc, memalign) [!MSDOS]: Declare.
(valloc) [HAVE_DECL_VALLOC]: Remove duplicate decl.
This commit is contained in:
Paul Eggert 2016-10-23 21:54:13 -07:00
parent ee04aedc72
commit 7bb5c4f206
2 changed files with 10 additions and 8 deletions
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5
configure.ac
View file

@ -2158,7 +2158,10 @@ elif test "$hybrid_malloc" = yes; then
GMALLOC_OBJ=gmalloc.o
VMLIMIT_OBJ=
else
test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
if test "$doug_lea_malloc" != "yes"; then
GMALLOC_OBJ=gmalloc.o
AC_CHECK_DECLS([valloc])
fi
VMLIMIT_OBJ=vm-limit.o
AC_CHECK_HEADERS([sys/vlimit.h])

13
src/gmalloc.c
View file

@ -40,7 +40,7 @@ License along with this library. If not, see <http://www.gnu.org/licenses/>.
#endif
#ifdef emacs
extern void emacs_abort (void);
extern _Noreturn void emacs_abort (void) NO_INLINE;
#endif
/* If HYBRID_MALLOC is defined, then temacs will use malloc,
@ -59,6 +59,7 @@ extern void emacs_abort (void);
#undef malloc
#undef realloc
#undef calloc
#undef aligned_alloc
#undef free
#define malloc gmalloc
#define realloc grealloc
@ -95,9 +96,9 @@ extern void *calloc (size_t nmemb, size_t size) ATTRIBUTE_MALLOC_SIZE ((1,2));
extern void free (void *ptr);
/* Allocate SIZE bytes allocated to ALIGNMENT bytes. */
#ifdef MSDOS
extern void *aligned_alloc (size_t, size_t);
extern void *memalign (size_t, size_t);
#ifdef MSDOS
extern int posix_memalign (void **, size_t, size_t);
#endif
@ -106,10 +107,6 @@ extern int posix_memalign (void **, size_t, size_t);
extern void malloc_enable_thread (void);
#endif
#ifdef emacs
extern void emacs_abort (void);
#endif
/* The allocator divides the heap into blocks of fixed size; large
requests receive one or more whole blocks, and small requests
receive a fragment of a block. Fragment sizes are powers of two,
@ -1686,7 +1683,9 @@ License along with this library. If not, see <http://www.gnu.org/licenses/>.
or (US mail) as Mike Haertel c/o Free Software Foundation. */
/* Allocate SIZE bytes on a page boundary. */
#ifndef HAVE_DECL_VALLOC
extern void *valloc (size_t);
#endif
#if defined _SC_PAGESIZE || !defined HAVE_GETPAGESIZE
# include "getpagesize.h"
@ -1769,7 +1768,7 @@ hybrid_aligned_alloc (size_t alignment, size_t size)
#endif
}
#endif
void *
hybrid_realloc (void *ptr, size_t size)
{