[binutils/f18] - Correctly handle PLTOFF relocs for s390 IFUNCs.
Jeffrey Law
law at fedoraproject.org
Tue Sep 4 16:50:41 UTC 2012
commit 4b9a078401fce9169f4ab3c5334d3f6f43e0d768
Author: Jeff Law <law at redhat.com>
Date: Tue Sep 4 10:49:01 2012 -0600
- Correctly handle PLTOFF relocs for s390 IFUNCs.
binutils-rh805974.patch | 121 +++++++++++++++++++++++++++++++++++++++++++++++
binutils.spec | 8 +++-
2 files changed, 128 insertions(+), 1 deletions(-)
---
diff --git a/binutils-rh805974.patch b/binutils-rh805974.patch
new file mode 100644
index 0000000..bfbb160
--- /dev/null
+++ b/binutils-rh805974.patch
@@ -0,0 +1,121 @@
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+From: "Andreas Krebbel" <andreas at de dot ibm dot com>
+Date: Mon, 3 Sep 2012 14:04:39 +0200
+To: binutils at sourceware dot org
+Subject: [Committed] S/390: Handle PLTOFF for IFUNC symbols correctly
+Message-ID: <20120903120439.GA10593 at bart>
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+Hi,
+
+the s390 IFUNC support so far didn't deal correctly with PLTOFF
+relocs. Fixed with the attached patch.
+
+Committed.
+
+Bye,
+
+-Andreas-
+
+2012-09-03 Andreas Krebbel <Andreas.Krebbel at de.ibm.com>
+
+ * elf32-s390.c (elf_s390_relocate_section): Handle PLTOFF for
+ local and global ifunc symbols.
+ * elf64-s390.c (elf_s390_relocate_section): Likewise.
+
+---
+ bfd/elf32-s390.c | 8 ++++++--
+ bfd/elf64-s390.c | 11 ++++++++---
+ 2 files changed, 14 insertions(+), 5 deletions(-)
+
+Index: binutils/bfd/elf32-s390.c
+===================================================================
+--- binutils.orig/bfd/elf32-s390.c
++++ binutils/bfd/elf32-s390.c
+@@ -2349,6 +2349,10 @@ elf_s390_relocate_section (bfd *output_b
+
+ switch (r_type)
+ {
++ case R_390_PLTOFF16:
++ case R_390_PLTOFF32:
++ relocation -= htab->elf.sgot->output_section->vma;
++ break;
+ case R_390_GOTPLT12:
+ case R_390_GOTPLT16:
+ case R_390_GOTPLT20:
+@@ -2625,9 +2629,9 @@ elf_s390_relocate_section (bfd *output_b
+
+ /* For local symbols or if we didn't make a PLT entry for
+ this symbol resolve the symbol directly. */
+- if ( h == NULL
++ if (h == NULL
+ || h->plt.offset == (bfd_vma) -1
+- || htab->elf.splt == NULL)
++ || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
+ {
+ relocation -= htab->elf.sgot->output_section->vma;
+ break;
+Index: binutils/bfd/elf64-s390.c
+===================================================================
+--- binutils.orig/bfd/elf64-s390.c
++++ binutils/bfd/elf64-s390.c
+@@ -2306,6 +2306,11 @@ elf_s390_relocate_section (bfd *output_b
+
+ switch (r_type)
+ {
++ case R_390_PLTOFF16:
++ case R_390_PLTOFF32:
++ case R_390_PLTOFF64:
++ relocation -= htab->elf.sgot->output_section->vma;
++ break;
+ case R_390_GOTPLT12:
+ case R_390_GOTPLT16:
+ case R_390_GOTPLT20:
+@@ -2561,7 +2566,7 @@ elf_s390_relocate_section (bfd *output_b
+ break;
+
+ if (h->plt.offset == (bfd_vma) -1
+- || (htab->elf.splt == NULL && htab->elf.iplt == NULL))
++ || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
+ {
+ /* We didn't make a PLT entry for this symbol. This
+ happens when statically linking PIC code, or when
+@@ -2587,9 +2592,9 @@ elf_s390_relocate_section (bfd *output_b
+
+ /* For local symbols or if we didn't make a PLT entry for
+ this symbol resolve the symbol directly. */
+- if ( h == NULL
++ if (h == NULL
+ || h->plt.offset == (bfd_vma) -1
+- || htab->elf.splt == NULL)
++ || (htab->elf.splt == NULL && !s390_is_ifunc_symbol_p (h)))
+ {
+ relocation -= htab->elf.sgot->output_section->vma;
+ break;
+
diff --git a/binutils.spec b/binutils.spec
index dc57c00..5621f08 100644
--- a/binutils.spec
+++ b/binutils.spec
@@ -17,7 +17,7 @@
Summary: A GNU collection of binary utilities
Name: %{?cross}binutils%{?_with_debug:-debug}
Version: 2.23.51.0.1
-Release: 3%{?dist}
+Release: 4%{?dist}
License: GPLv3+
Group: Development/Tools
URL: http://sources.redhat.com/binutils
@@ -42,6 +42,8 @@ Patch09: binutils-2.22.52.0.1-export-demangle.h.patch
Patch10: binutils-2.22.52.0.4-no-config-h-check.patch
# Make GOLD honour the KEEP directive in linker scripts.
Patch11: binutils-2.23.51.0.1-gold-keep.patch
+# Bugfix for s390[x] IFUNC support
+Patch12: binutils-rh805974.patch
%define gold_arches %ix86 x86_64
@@ -146,6 +148,7 @@ using libelf instead of BFD.
%patch09 -p0 -b .export-demangle-h~
%patch10 -p0 -b .no-config-h-check~
%patch11 -p0 -b .gold-keep~
+%patch12 -p1
# We cannot run autotools as there is an exact requirement of autoconf-2.59.
@@ -444,6 +447,9 @@ exit 0
%endif # %{isnative}
%changelog
+* Tue Sep 4 2012 Jeff Law <law at redhat.com> 2.23.51.0.1-4
+- Correctly handle PLTOFF relocs for s390 IFUNCs.
+
* Tue Aug 14 2012 Karsten Hopp <karsten at redhat.com> 2.23.51.0.1-3
- apply F17 commit cd2fda5 to honour {powerpc64} macro (#834651)
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