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| author | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2017-06-26 11:01:58 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2017-06-26 11:01:58 +0200 |
| commit | 93ec5e23766a9f75aa4950748cf73964028a8d1b (patch) | |
| tree | ba6f4eb23fceddf57b6018ea37d8c2e4e538da28 /bfd/elf64-s390.c | |
| parent | 49fa50ef9c59aa6d03bc2e33a25b2d832a9e692b (diff) | |
| download | gdb-93ec5e23766a9f75aa4950748cf73964028a8d1b.zip gdb-93ec5e23766a9f75aa4950748cf73964028a8d1b.tar.gz gdb-93ec5e23766a9f75aa4950748cf73964028a8d1b.tar.bz2 | |
S/390: Fix testsuite segfault added with recent pgste patch.
The recent pgste patch caused several testcases to fail with a
segfault. Fixed with this patch by adding NULL pointer checks.
regression-tested on s390x.
bfd/ChangeLog:
2017-06-26 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* elf64-s390.c (elf_s390_additional_program_headers): Add NULL
pointer checks.
(elf_s390_modify_segment_map): Likewise.
(bfd_elf_s390_set_options): Lisewise.
Diffstat (limited to 'bfd/elf64-s390.c')
| -rw-r--r-- | bfd/elf64-s390.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c index 1af1200..f85f8cd 100644 --- a/bfd/elf64-s390.c +++ b/bfd/elf64-s390.c @@ -3978,22 +3978,29 @@ elf_s390_additional_program_headers (bfd *abfd ATTRIBUTE_UNUSED, { struct elf_s390_link_hash_table *htab; - htab = elf_s390_hash_table (info); - return htab->params->pgste; + if (info) + { + htab = elf_s390_hash_table (info); + if (htab) + return htab->params->pgste; + } + return 0; } /* Add the PT_S390_PGSTE program header. */ static bfd_boolean -elf_s390_modify_segment_map (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info) +elf_s390_modify_segment_map (bfd *abfd, struct bfd_link_info *info) { struct elf_s390_link_hash_table *htab; struct elf_segment_map *m, *pm = NULL; + if (!abfd || !info) + return TRUE; + htab = elf_s390_hash_table (info); - if (!htab->params->pgste) + if (!htab || !htab->params->pgste) return TRUE; /* If there is already a PT_S390_PGSTE header, avoid adding @@ -4027,8 +4034,12 @@ bfd_elf_s390_set_options (struct bfd_link_info *info, { struct elf_s390_link_hash_table *htab; - htab = elf_s390_hash_table (info); - htab->params = params; + if (info) + { + htab = elf_s390_hash_table (info); + if (htab) + htab->params = params; + } return TRUE; } |