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| author | Alan Modra <amodra@gmail.com> | 2020-02-19 13:14:45 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-02-19 13:14:45 +1030 |
| commit | 446f7ed5abfd2d0bed8c4442d0634b1a8bc116f4 (patch) | |
| tree | 8e1fac2505e01df41dc5991026fb3733f03442bb /bfd/elflink.c | |
| parent | b03202e32c8235997b3485b0b4655926ad97a1cc (diff) | |
| download | gdb-446f7ed5abfd2d0bed8c4442d0634b1a8bc116f4.zip gdb-446f7ed5abfd2d0bed8c4442d0634b1a8bc116f4.tar.gz gdb-446f7ed5abfd2d0bed8c4442d0634b1a8bc116f4.tar.bz2 | |
alloc2 used unnecessarily
The bfd_alloc2 series of functions were invented to handle cases where
nmemb * size can overflow. This patch changes some places where the
calculation can't overflow.
* elf.c (bfd_section_from_shdr): Use bfd_zalloc rather than
bfd_zalloc2.
(assign_section_numbers): Likewise.
(elf_map_symbols): Likewise, and bfd_alloc rather than bfd_alloc2.
(_bfd_elf_map_sections_to_segments): Use bfd_malloc rather than
bfd_malloc2, size_t amt, and unsigned tls_count.
(rewrite_elf_program_header): Use bfd_malloc and size_t amt.
* elflink.c (elf_create_symbuf): Use bfd_malloc.
(elf_output_implib): Use bfd_alloc.
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index f7b867c..1656978e 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -7931,9 +7931,10 @@ elf_create_symbuf (size_t symcount, Elf_Internal_Sym *isymbuf) Elf_Internal_Sym **ind, **indbufend, **indbuf; struct elf_symbuf_symbol *ssym; struct elf_symbuf_head *ssymbuf, *ssymhead; - size_t i, shndx_count, total_size; + size_t i, shndx_count, total_size, amt; - indbuf = (Elf_Internal_Sym **) bfd_malloc2 (symcount, sizeof (*indbuf)); + amt = symcount * sizeof (*indbuf); + indbuf = (Elf_Internal_Sym **) bfd_malloc (amt); if (indbuf == NULL) return NULL; @@ -11657,6 +11658,7 @@ elf_output_implib (bfd *abfd, struct bfd_link_info *info) long symcount; long src_count; elf_symbol_type *osymbuf; + size_t amt; implib_bfd = info->out_implib_bfd; bed = get_elf_backend_data (abfd); @@ -11714,8 +11716,8 @@ elf_output_implib (bfd *abfd, struct bfd_link_info *info) /* Make symbols absolute. */ - osymbuf = (elf_symbol_type *) bfd_alloc2 (implib_bfd, symcount, - sizeof (*osymbuf)); + amt = symcount * sizeof (*osymbuf); + osymbuf = (elf_symbol_type *) bfd_alloc (implib_bfd, amt); if (osymbuf == NULL) goto free_sym_buf; |