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| author | Nick Clifton <nickc@redhat.com> | 2008-02-20 17:42:36 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2008-02-20 17:42:36 +0000 |
| commit | 515ef31dec50185cc5d8a6f88b51832bfd259e87 (patch) | |
| tree | 3b25393193afaf4f670cf6da64ff323faee10203 /bfd/libbfd.c | |
| parent | 4443cd0f6e76d3ecb793814445d2e01b41f29fbe (diff) | |
| download | gdb-515ef31dec50185cc5d8a6f88b51832bfd259e87.zip gdb-515ef31dec50185cc5d8a6f88b51832bfd259e87.tar.gz gdb-515ef31dec50185cc5d8a6f88b51832bfd259e87.tar.bz2 | |
PR 868
* libbfd.c (bfd_realloc_or_free): New function. Performs like
bfd_realloc, but if the (re)allocation fails, the pointer is
freed.
* libbfd-in.h: Prototype.
* libbfd.h: Regenerate.
* bfdio.c (bfd_bwrite): Use the new function.
(bfd_seek): Likewise.
* bfdwin.c:(bfd_get_file_window): Likewise.
* elf-strtab.c (_bfd_elf_strtab_add): Likewise.
* elf32-ppc.c (ppc_elf_relax_section): Likewise.
* elf32-xtensa.c (vsprintf_msg): Likewise.
* mach-o.c (bfd_mach_o_core_fetch_environment): Likewise.
* stabs.c (_bfd_link_seciton_stabs): Likewise.
* vms-misc.c (_bfd_vms_get_record): Likewise.
* vms-tir.c (check_section): Likewise.
* vms.c (vms_new_section_hook): Likewise.
* elf32-arm.c (elf32_arm_section_map_add): Check that the
allocation of sec_data->map succeeded before using it.
* elflink.c (elf_link_output_sym): Do not overwrite finfo->
symshndxbuf until it is known that the reallocation succeeded.
Diffstat (limited to 'bfd/libbfd.c')
| -rw-r--r-- | bfd/libbfd.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/bfd/libbfd.c b/bfd/libbfd.c index bf49a2e..a225397 100644 --- a/bfd/libbfd.c +++ b/bfd/libbfd.c @@ -1,6 +1,6 @@ /* Assorted BFD support routines, only used internally. Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003, 2004, 2005, 2007 + 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc. Written by Cygnus Support. @@ -265,6 +265,34 @@ bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size) return ret; } +/* Reallocate memory using realloc. + If this fails the pointer is freed before returning. */ + +void * +bfd_realloc_or_free (void *ptr, bfd_size_type size) +{ + size_t amount = (size_t) size; + void *ret; + + if (size != amount) + ret = NULL; + else if (ptr == NULL) + ret = malloc (amount); + else + ret = realloc (ptr, amount); + + if (ret == NULL) + { + if (amount > 0) + bfd_set_error (bfd_error_no_memory); + + if (ptr != NULL) + free (ptr); + } + + return ret; +} + /* Allocate memory using malloc and clear it. */ void * |