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| author | H.J. Lu <hjl.tools@gmail.com> | 2012-05-10 03:25:17 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2012-05-10 03:25:17 +0000 |
| commit | 8cf0d2dd210b73dff4a2d63d60c49e42b86565a7 (patch) | |
| tree | c73a06cc9dcf7ab583730ab2273ced526febf4cd /bfd/elf64-x86-64.c | |
| parent | 968bf8f19d1668f5ad2b6cd6c7c251e72ed09756 (diff) | |
| download | gdb-8cf0d2dd210b73dff4a2d63d60c49e42b86565a7.zip gdb-8cf0d2dd210b73dff4a2d63d60c49e42b86565a7.tar.gz gdb-8cf0d2dd210b73dff4a2d63d60c49e42b86565a7.tar.bz2 | |
Check 64-bit relocation addend overflow for x32
bfd/
* elf64-x86-64.c (elf_x86_64_relocate_section): Check addend
overflow for R_X86_64_RELATIVE64.
gas/
* config/tc-i386.c (tc_gen_reloc): Check x32 addend overflow
for BFD_RELOC_64.
gas/testsuite/
* gas/i386/ilp32/ilp32.exp: Run reloc64-inval.
* gas/i386/ilp32/reloc64.s: Add tests for ".quad".
* gas/i386/ilp32/reloc64.d: Updated.
* gas/i386/ilp32/reloc64-inval.l: New file.
* gas/i386/ilp32/reloc64-inval.s: Likewise.
ld/testsuite/
* ld-x86-64/ilp32-11.d: New file.
* ld-x86-64/ilp32-11.s: Likewise.
* ld-x86-64/x86-64.exp: Run ilp32-11.
Diffstat (limited to 'bfd/elf64-x86-64.c')
| -rw-r--r-- | bfd/elf64-x86-64.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index de7fd6f..8eafbf0 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -3681,6 +3681,27 @@ elf_x86_64_relocate_section (bfd *output_bfd, outrel.r_info = htab->r_info (0, R_X86_64_RELATIVE64); outrel.r_addend = relocation + rel->r_addend; + /* Check addend overflow. */ + if ((outrel.r_addend & 0x80000000) + != (rel->r_addend & 0x80000000)) + { + const char *name; + if (h && h->root.root.string) + name = h->root.root.string; + else + name = bfd_elf_sym_name (input_bfd, symtab_hdr, + sym, NULL); + (*_bfd_error_handler) + (_("%B: addend %ld in relocation %s against " + "symbol `%s' at 0x%lx in section `%A' is " + "out of range"), + input_bfd, input_section, + (long) rel->r_addend, + x86_64_elf_howto_table[r_type].name, + name, (unsigned long) rel->r_offset); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } } else { |