diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-osinfo.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/dl-osinfo.h | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-osinfo.h b/sysdeps/unix/sysv/linux/dl-osinfo.h index 3c93218dfc..89bad440c9 100644 --- a/sysdeps/unix/sysv/linux/dl-osinfo.h +++ b/sysdeps/unix/sysv/linux/dl-osinfo.h @@ -1,5 +1,6 @@ /* Operating system specific code for generic dynamic loader functions. Linux. - Copyright (C) 2000,2001,2002,2004,2005,2006 Free Software Foundation, Inc. + Copyright (C) 2000,2001,2002,2004,2005,2006,2007 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -54,11 +55,9 @@ _dl_discover_osversion (void) static const struct { - ElfW(Word) vendorlen; - ElfW(Word) datalen; - ElfW(Word) type; + ElfW(Nhdr) hdr; char vendor[8]; - } expected_note = { sizeof "Linux", sizeof (ElfW(Word)), 0, "Linux" }; + } expected_note = { { sizeof "Linux", sizeof (ElfW(Word)), 0 }, "Linux" }; const ElfW(Phdr) *const phdr = GLRO(dl_sysinfo_map)->l_phdr; const ElfW(Word) phnum = GLRO(dl_sysinfo_map)->l_phnum; for (uint_fast16_t i = 0; i < phnum; ++i) @@ -66,20 +65,15 @@ _dl_discover_osversion (void) { const ElfW(Addr) start = (phdr[i].p_vaddr + GLRO(dl_sysinfo_map)->l_addr); - const struct - { - ElfW(Word) vendorlen; - ElfW(Word) datalen; - ElfW(Word) type; - } *note = (const void *) start; + const ElfW(Nhdr) *note = (const void *) start; while ((ElfW(Addr)) (note + 1) - start < phdr[i].p_memsz) { if (!memcmp (note, &expected_note, sizeof expected_note)) return *(const ElfW(Word) *) ((const void *) note + sizeof expected_note); -#define ROUND(len) (((len) + sizeof (ElfW(Word)) - 1) & -sizeof (ElfW(Word))) +#define ROUND(len) (((len) + sizeof note->n_type - 1) & -sizeof note->n_type) note = ((const void *) (note + 1) - + ROUND (note->vendorlen) + ROUND (note->datalen)); + + ROUND (note->n_namesz) + ROUND (note->n_descsz)); } } } |