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| author | Alan Modra <amodra@gmail.com> | 2011-02-25 07:48:51 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2011-02-25 07:48:51 +0000 |
| commit | 15a44d573df5846c607c0d5345a04ac81d78ce1c (patch) | |
| tree | 42bc274bce39ad7a21cb0134d83662acc06fde12 /include/elf/internal.h | |
| parent | dc9a21c4bf06b1c52e730979e56f02bf6c6c50be (diff) | |
| download | gdb-15a44d573df5846c607c0d5345a04ac81d78ce1c.zip gdb-15a44d573df5846c607c0d5345a04ac81d78ce1c.tar.gz gdb-15a44d573df5846c607c0d5345a04ac81d78ce1c.tar.bz2 | |
PR 12519
* internal.h (ELF_SECTION_IN_SEGMENT_1): Don't match zero size
sections at start or end of PT_DYNAMIC.
Diffstat (limited to 'include/elf/internal.h')
| -rw-r--r-- | include/elf/internal.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/include/elf/internal.h b/include/elf/internal.h index 6998ae0..c6e5721 100644 --- a/include/elf/internal.h +++ b/include/elf/internal.h @@ -1,6 +1,6 @@ /* ELF support for BFD. Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 2001, 2002, - 2003, 2006, 2007, 2008, 2010 Free Software Foundation, Inc. + 2003, 2006, 2007, 2008, 2010, 2011 Free Software Foundation, Inc. Written by Fred Fish @ Cygnus Support, from information published in "UNIX System V Release 4, Programmers Guide: ANSI C and @@ -302,7 +302,9 @@ struct elf_segment_map /* Decide if the section SEC_HDR is in SEGMENT. If CHECK_VMA, then VMAs are checked for alloc sections. If STRICT, then a zero size section won't match at the end of a segment, unless the segment - is also zero size. */ + is also zero size. Regardless of STRICT and CHECK_VMA, zero size + sections won't match at the start or end of PT_DYNAMIC, unless + PT_DYNAMIC is itself zero sized. */ #define ELF_SECTION_IN_SEGMENT_1(sec_hdr, segment, check_vma, strict) \ ((/* Only PT_LOAD, PT_GNU_RELRO and PT_TLS segments can contain \ SHF_TLS sections. */ \ @@ -334,7 +336,19 @@ struct elf_segment_map <= (segment)->p_memsz - 1)) \ && (((sec_hdr)->sh_addr - (segment)->p_vaddr \ + ELF_SECTION_SIZE(sec_hdr, segment)) \ - <= (segment)->p_memsz)))) + <= (segment)->p_memsz))) \ + /* No zero size sections at start or end of PT_DYNAMIC. */ \ + && ((segment)->p_type != PT_DYNAMIC \ + || (sec_hdr)->sh_size != 0 \ + || (segment)->p_memsz == 0 \ + || (((sec_hdr)->sh_type == SHT_NOBITS \ + || ((bfd_vma) (sec_hdr)->sh_offset > (segment)->p_offset \ + && ((sec_hdr)->sh_offset - (segment)->p_offset \ + < (segment)->p_filesz))) \ + && (((sec_hdr)->sh_flags & SHF_ALLOC) == 0 \ + || ((sec_hdr)->sh_addr > (segment)->p_vaddr \ + && ((sec_hdr)->sh_addr - (segment)->p_vaddr \ + < (segment)->p_memsz)))))) #define ELF_SECTION_IN_SEGMENT(sec_hdr, segment) \ (ELF_SECTION_IN_SEGMENT_1 (sec_hdr, segment, 1, 0)) |