diff options
| author | Ulrich Drepper <[email protected]> | 2006-04-04 21:07:28 +0000 |
|---|---|---|
| committer | Ulrich Drepper <[email protected]> | 2006-04-04 21:07:28 +0000 |
| commit | 697d8d283e5fda32c1930135ff884dd276499e4a (patch) | |
| tree | 35ec910f7033a71c524053dae6528aa0b4271d68 /libelf/elf32_updatenull.c | |
| parent | dd7e22b4a0e47dfab08a14e7fa9bd1fa8b1a968c (diff) | |
Fix read/write of existing file using mmap and different layout of the ELF
file.
Diffstat (limited to 'libelf/elf32_updatenull.c')
| -rw-r--r-- | libelf/elf32_updatenull.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c index ed7242b2..9c61cd77 100644 --- a/libelf/elf32_updatenull.c +++ b/libelf/elf32_updatenull.c @@ -1,5 +1,5 @@ /* Update data structures for changes. - Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Red Hat, Inc. Written by Ulrich Drepper <[email protected]>, 2000. This program is free software; you can redistribute it and/or modify @@ -319,8 +319,18 @@ __elfw2(LIBELFBITS,updatenull) (Elf *elf, int *change_bop, size_t shnum) scn->shdr_flags); size = (size + sh_align - 1) & ~(sh_align - 1); + int offset_changed = 0; update_if_changed (shdr->sh_offset, (GElf_Word) size, - changed); + offset_changed); + changed |= offset_changed; + + if (offset_changed && scn->data_list_rear == NULL) + { + /* The position of the section in the file + changed. Create the section data list. */ + if (INTUSE(elf_getdata) (scn, NULL) == NULL) + return -1; + } /* See whether the section size is correct. */ update_if_changed (shdr->sh_size, (GElf_Word) offset, |