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[binutils-gdb/binutils-2_29-branch] S/390: Fix segfault when linking -shared -nostartfiles
- From: Andreas Krebbel <krebbel at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 1 Aug 2017 08:59:45 -0000
- Subject: [binutils-gdb/binutils-2_29-branch] S/390: Fix segfault when linking -shared -nostartfiles
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=080e5b3c87417937f033700896db9f50338eac5c
commit 080e5b3c87417937f033700896db9f50338eac5c
Author: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Date: Tue Aug 1 10:56:59 2017 +0200
S/390: Fix segfault when linking -shared -nostartfiles
Regression-tested on s390x.
bfd/ChangeLog:
2017-08-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Backport from mainline
2017-07-28 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* elf32-s390.c (elf_s390_finish_dynamic_sections): Add NULL
pointer check for htab->elf.irelplt.
* elf64-s390.c (elf_s390_finish_dynamic_sections): Likewise.
Diff:
---
bfd/ChangeLog | 9 +++++++++
bfd/elf32-s390.c | 4 +++-
bfd/elf64-s390.c | 8 ++++++--
3 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 1478710..103334d 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2017-08-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
+
+ Backport from mainline
+ 2017-07-28 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
+
+ * elf32-s390.c (elf_s390_finish_dynamic_sections): Add NULL
+ pointer check for htab->elf.irelplt.
+ * elf64-s390.c (elf_s390_finish_dynamic_sections): Likewise.
+
2017-07-31 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (ppc64_elf_tls_setup): Warn on --plt-localentry
diff --git a/bfd/elf32-s390.c b/bfd/elf32-s390.c
index c26bdcf..8adf9e4 100644
--- a/bfd/elf32-s390.c
+++ b/bfd/elf32-s390.c
@@ -3941,7 +3941,9 @@ elf_s390_finish_dynamic_sections (bfd *output_bfd,
break;
case DT_PLTRELSZ:
- dyn.d_un.d_val = htab->elf.srelplt->size + htab->elf.irelplt->size;
+ dyn.d_un.d_val = htab->elf.srelplt->size;
+ if (htab->elf.irelplt)
+ dyn.d_un.d_val += htab->elf.irelplt->size;
break;
}
diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c
index f85f8cd..4dfa007 100644
--- a/bfd/elf64-s390.c
+++ b/bfd/elf64-s390.c
@@ -3745,7 +3745,9 @@ elf_s390_finish_dynamic_sections (bfd *output_bfd,
break;
case DT_PLTRELSZ:
- dyn.d_un.d_val = htab->elf.srelplt->size + htab->elf.irelplt->size;
+ dyn.d_un.d_val = htab->elf.srelplt->size;
+ if (htab->elf.irelplt)
+ dyn.d_un.d_val += htab->elf.irelplt->size;
break;
case DT_RELASZ:
@@ -3756,7 +3758,9 @@ elf_s390_finish_dynamic_sections (bfd *output_bfd,
linker script arranges for .rela.plt to follow all
other relocation sections, we don't have to worry
about changing the DT_RELA entry. */
- dyn.d_un.d_val -= htab->elf.srelplt->size + htab->elf.irelplt->size;
+ dyn.d_un.d_val -= htab->elf.srelplt->size;
+ if (htab->elf.irelplt)
+ dyn.d_un.d_val -= htab->elf.irelplt->size;
break;
}