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| author | Ulrich Drepper <drepper@redhat.com> | 2009-02-10 17:21:29 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-02-10 17:21:29 +0000 |
| commit | 40e2fc8b708d74c59548fd5a5673b2d3329f34c0 (patch) | |
| tree | 8be4e4504aefe4307f20a37d640dd6360a75b6b0 /sysdeps/unix/sysv/linux/ldsodefs.h | |
| parent | 6c03cd11e9c253211c831a70dfece6f5bd07e12c (diff) | |
| download | glibc-40e2fc8b708d74c59548fd5a5673b2d3329f34c0.tar.gz glibc-40e2fc8b708d74c59548fd5a5673b2d3329f34c0.tar.xz glibc-40e2fc8b708d74c59548fd5a5673b2d3329f34c0.zip | |
* elf/dl-load.c (open_verify): In case VALID_ELF_HEADER is
defined, allow additional data to be added using the optional MORE_ELF_HEADER_DATA macro. * sysdeps/unix/sysv/linux/ldsodefs.h (VALID_ELF_HEADER, VALID_ELF_OSABI, VALID_ELF_ABIVERSION, MORE_ELF_HEADER_DATA): Define.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ldsodefs.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ldsodefs.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/ldsodefs.h b/sysdeps/unix/sysv/linux/ldsodefs.h index 0bdca3c3fd..0965f1496f 100644 --- a/sysdeps/unix/sysv/linux/ldsodefs.h +++ b/sysdeps/unix/sysv/linux/ldsodefs.h @@ -1,5 +1,5 @@ /* Run-time dynamic linker data structures for loaded ELF shared objects. - Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc. + Copyright (C) 2001, 2002, 2003, 2006, 2009 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 @@ -53,4 +53,24 @@ extern void _dl_non_dynamic_init (void) internal_function; # define HAVE_AUX_PAGESIZE #endif +/* Accept binaries which identify the binary as using Linux extensions. */ +#define VALID_ELF_HEADER(hdr,exp,size) (memcmp (hdr, exp, size) == 0 \ + || memcmp (hdr, expected2, size) == 0) +#define VALID_ELF_OSABI(osabi) (osabi == ELFOSABI_SYSV \ + || osabi == ELFOSABI_LINUX) +#define VALID_ELF_ABIVERSION(ver) (ver == 0) +#define MORE_ELF_HEADER_DATA \ + static const unsigned char expected2[EI_PAD] = \ + { \ + [EI_MAG0] = ELFMAG0, \ + [EI_MAG1] = ELFMAG1, \ + [EI_MAG2] = ELFMAG2, \ + [EI_MAG3] = ELFMAG3, \ + [EI_CLASS] = ELFW(CLASS), \ + [EI_DATA] = byteorder, \ + [EI_VERSION] = EV_CURRENT, \ + [EI_OSABI] = ELFOSABI_LINUX, \ + [EI_ABIVERSION] = 0 \ + } + #endif /* ldsodefs.h */ |