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| author | Alan Modra <amodra@gmail.com> | 2013-10-03 13:51:52 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2013-10-04 11:33:12 +0930 |
| commit | f8e3e9f31bfd71641418897228fa1732170b69cc (patch) | |
| tree | e3989beb32870a742129b014e2486edc342fe221 /sysdeps/powerpc/powerpc32/dl-machine.c | |
| parent | f5a0a42a03cb56ef89aeebf94214752a98d074cb (diff) | |
| download | glibc-f8e3e9f31bfd71641418897228fa1732170b69cc.tar.gz | |
Correct little-endian relocation of UADDR64,32,16.
* sysdeps/powerpc/powerpc32/dl-machine.c (__process_machine_rela):
Correct handling of unaligned relocs for little-endian.
* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela): Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/dl-machine.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/dl-machine.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sysdeps/powerpc/powerpc32/dl-machine.c b/sysdeps/powerpc/powerpc32/dl-machine.c index 3e7202d869..f81899a0ac 100644 --- a/sysdeps/powerpc/powerpc32/dl-machine.c +++ b/sysdeps/powerpc/powerpc32/dl-machine.c @@ -416,6 +416,12 @@ __process_machine_rela (struct link_map *map, Elf32_Addr const finaladdr, int rinfo) { + union unaligned + { + unsigned u2 __attribute__ ((mode (HI))); + unsigned u4 __attribute__ ((mode (SI))); + } __attribute__((__packed__)); + switch (rinfo) { case R_PPC_NONE: @@ -432,10 +438,7 @@ __process_machine_rela (struct link_map *map, return; case R_PPC_UADDR32: - ((char *) reloc_addr)[0] = finaladdr >> 24; - ((char *) reloc_addr)[1] = finaladdr >> 16; - ((char *) reloc_addr)[2] = finaladdr >> 8; - ((char *) reloc_addr)[3] = finaladdr; + ((union unaligned *) reloc_addr)->u4 = finaladdr; break; case R_PPC_ADDR24: @@ -453,8 +456,7 @@ __process_machine_rela (struct link_map *map, case R_PPC_UADDR16: if (__builtin_expect (finaladdr > 0x7fff && finaladdr < 0xffff8000, 0)) _dl_reloc_overflow (map, "R_PPC_UADDR16", reloc_addr, refsym); - ((char *) reloc_addr)[0] = finaladdr >> 8; - ((char *) reloc_addr)[1] = finaladdr; + ((union unaligned *) reloc_addr)->u2 = finaladdr; break; case R_PPC_ADDR16_LO: |