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authorUlrich Drepper <drepper@redhat.com>2000-08-19 16:58:09 +0000
committerUlrich Drepper <drepper@redhat.com>2000-08-19 16:58:09 +0000
commit60f0e64b3c13cf717fd49d327dbbca88568ca647 (patch)
tree06093754479c7bbe18bed7bb50a905358290f42f /malloc/malloc.c
parent277723d891149ded87f4d7fbb080575c722bdf75 (diff)
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Update.
* malloc/mtrace.pl (usage): Inform about --help. 2000-08-19 Wolfram Gloger <wg@malloc.de> * malloc/malloc.c (new_heap): try harder to get an aligned chunk of size HEAP_MAX_SIZE. 2000-08-19 Andreas Jaeger <aj@suse.de> * shlib-versions: Remove libnss_db, libdb and libdb1. 2000-08-19 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/alpha/readdir.c: Move... * sysdeps/unix/sysv/linux/ia64/readdir.c: ...here and * sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c: ...here. * sysdeps/unix/sysv/linux/alpha/readdir_r.c: Move... * sysdeps/unix/sysv/linux/ia64/readdir_r.c: ...here and * sysdeps/unix/sysv/linux/sparc/sparc64/readdir_r.c: ...here. * sysdeps/unix/sysv/linux/alpha/readdir64.c: Remove. * sysdeps/unix/sysv/linux/alpha/readdir64_r.c: Remove. * sysdeps/unix/sysv/linux/alpha/getdents64.c: Remove. * sysdeps/unix/sysv/linux/alpha/getdents.c: Only use for non-LFS getdents. * sysdeps/unix/sysv/linux/readdir64.c: Remove versioning. * sysdeps/unix/sysv/linux/readdir64_r.c: Likewise. 2000-08-18 Jakub Jelinek <jakub@redhat.com> * include/glob.h (__glob64): Add prototype. * sysdeps/generic/glob.c: If GLOB_ONLY_P is defined, only define glob and glob_in_dir. * sysdeps/unix/sysv/linux/i386/Versions: Add glob64@@GLIBC_2.2. * sysdeps/unix/sysv/linux/arm/Versions: Likewise. * sysdeps/unix/sysv/linux/powerpc/Versions: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/Versions: Likewise. * sysdeps/unix/sysv/linux/i386/glob64.c: New file. * sysdeps/unix/sysv/linux/arm/glob64.c: New file. * sysdeps/unix/sysv/linux/powerpc/glob64.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/glob64.c: New file. 2000-08-18 Jakub Jelinek <jakub@redhat.com> * malloc/Makefile (memusage): libmemusage.so is installed in slibdir. 2000-08-17 Andreas Jaeger <aj@suse.de> * math/test-fenv.c (fe_single_test): New function. (fe_env_tests): Use fe_single_test. (feenable_test): New tests for feenable/fedisable and fegetexcpetions. (feexcp_mask_test): New function. (feexcp_nomask_test): New function. 2000-08-19 Richard Henderson <rth@cygnus.com> * sysdeps/alpha/fpu/fenv_libc.h: New file. * sysdeps/alpha/fpu/fclrexcpt.c: Use it. * sysdeps/alpha/fpu/fegetenv.c: Likewise. * sysdeps/alpha/fpu/fesetround.c: Likewise. * sysdeps/alpha/fpu/fegetround.c: Likewise. * sysdeps/alpha/fpu/fgetexcptflg.c: Likewise. * sysdeps/alpha/fpu/fraiseexcpt.c: Likewise. * sysdeps/alpha/fpu/ftestexcept.c: Likewise. * sysdeps/alpha/fpu/fedisblxcpt.c: Likewise. Use the smaller mask. * sysdeps/alpha/fpu/feenablxcpt.c: Likewise. * sysdeps/alpha/fpu/fegetexcept.c: Likewise. * sysdeps/alpha/fpu/feholdexcpt.c: Retain the SWCR_MAP bits. * sysdeps/alpha/fpu/fesetenv.c: Likewise. * sysdeps/alpha/fpu/feupdateenv.c: Likewise. * sysdeps/alpha/fpu/fsetexcptflg.c: Likewise. * sysdeps/alpha/fpu/bits/fenv.h (FE_DENORMAL): New. (FE_MAP_DMZ, FE_MAP_UMZ, FE_NONIEEE_ENV): New. 2000-08-19 Andreas Jaeger <aj@suse.de>
Diffstat (limited to 'malloc/malloc.c')
-rw-r--r--malloc/malloc.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index af20ca2..9ae5b6e 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -2013,12 +2013,22 @@ new_heap(size) size_t size;
mapping (on Linux, this is the case for all non-writable mappings
anyway). */
p1 = (char *)MMAP(0, HEAP_MAX_SIZE<<1, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE);
- if(p1 == MAP_FAILED)
- return 0;
- p2 = (char *)(((unsigned long)p1 + HEAP_MAX_SIZE) & ~(HEAP_MAX_SIZE-1));
- ul = p2 - p1;
- munmap(p1, ul);
- munmap(p2 + HEAP_MAX_SIZE, HEAP_MAX_SIZE - ul);
+ if(p1 != MAP_FAILED) {
+ p2 = (char *)(((unsigned long)p1 + HEAP_MAX_SIZE) & ~(HEAP_MAX_SIZE-1));
+ ul = p2 - p1;
+ munmap(p1, ul);
+ munmap(p2 + HEAP_MAX_SIZE, HEAP_MAX_SIZE - ul);
+ } else {
+ /* Try to take the chance that an allocation of only HEAP_MAX_SIZE
+ is already aligned. */
+ p2 = (char *)MMAP(0, HEAP_MAX_SIZE, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE);
+ if(p2 == MAP_FAILED)
+ return 0;
+ if((unsigned long)p2 & (HEAP_MAX_SIZE-1)) {
+ munmap(p2, HEAP_MAX_SIZE);
+ return 0;
+ }
+ }
if(mprotect(p2, size, PROT_READ|PROT_WRITE) != 0) {
munmap(p2, HEAP_MAX_SIZE);
return 0;