rpms
/
binutils
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Backport PR 22764 

Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
This commit is contained in:
Patrick Uiterwijk 2018-02-22 13:08:43 +01:00
parent e0e1ae6f6a
commit 5491f5f490
2 changed files with 156 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

147
binutils-2.30-allow_R_AARCH64-symbols.patch Normal file
View File

@ -0,0 +1,147 @@
From 279b2f94168ee91e02ccd070d27c983fc001fe12 Mon Sep 17 00:00:00 2001
From: Renlin Li <renlin.li@arm.com>
Date: Sat, 3 Feb 2018 13:18:17 +0000
Subject: [PATCH] [PR22764][LD][AARCH64]Allow R_AARCH64_ABS16 and
R_AARCH64_ABS32 against absolution symbol or undefine symbol in shared
object.
The assumption that R_AARCH64_ABS16 and R_AARCH64_ABS32 relocation in LP64 abi
will be used to generate an address does not hold for absolute symbol.
In this case, it is a value fixed at static linking time.
The condition to check the relocations is relax to allow absolute symbol and
undefined symbol case.
bfd/
2018-02-05 Renlin Li <renlin.li@arm.com>
PR ld/22764
* elfnn-aarch64.c (elfNN_aarch64_check_relocs): Relax the
R_AARCH64_ABS32 and R_AARCH64_ABS16 for absolute symbol. Apply the
check for writeable section as well.
ld/
2018-02-05 Renlin Li <renlin.li@arm.com>
PR ld/22764
* testsuite/ld-aarch64/emit-relocs-258.s: Define symbol as an address.
* testsuite/ld-aarch64/emit-relocs-259.s: Likewise.
* testsuite/ld-aarch64/aarch64-elf.exp: Run new test.
* testsuite/ld-aarch64/pr22764.s: New.
* testsuite/ld-aarch64/pr22764.d: New.
---
bfd/ChangeLog | 7 +++++++
bfd/elfnn-aarch64.c | 15 ++++++++++++---
ld/ChangeLog | 8 ++++++++
ld/testsuite/ld-aarch64/aarch64-elf.exp | 1 +
ld/testsuite/ld-aarch64/emit-relocs-258.s | 3 ++-
ld/testsuite/ld-aarch64/emit-relocs-259.s | 3 ++-
ld/testsuite/ld-aarch64/pr22764.d | 18 ++++++++++++++++++
ld/testsuite/ld-aarch64/pr22764.s | 6 ++++++
8 files changed, 56 insertions(+), 5 deletions(-)
create mode 100644 ld/testsuite/ld-aarch64/pr22764.d
create mode 100644 ld/testsuite/ld-aarch64/pr22764.s
diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c
index af448f9..2737773 100644
--- a/bfd/elfnn-aarch64.c
+++ b/bfd/elfnn-aarch64.c
@@ -7189,10 +7189,19 @@ elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info,
#if ARCH_SIZE == 64
case BFD_RELOC_AARCH64_32:
#endif
- if (bfd_link_pic (info)
- && (sec->flags & SEC_ALLOC) != 0
- && (sec->flags & SEC_READONLY) != 0)
+ if (bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0)
{
+ if (h != NULL
+ /* This is an absolute symbol. It represents a value instead
+ of an address. */
+ && ((h->root.type == bfd_link_hash_defined
+ && bfd_is_abs_section (h->root.u.def.section))
+ /* This is an undefined symbol. */
+ || h->root.type == bfd_link_hash_undefined))
+ break;
+
+ /* For local symbols, defined global symbols in a non-ABS section,
+ it is assumed that the value is an address. */
int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
_bfd_error_handler
/* xgettext:c-format */
diff --git a/ld/testsuite/ld-aarch64/aarch64-elf.exp b/ld/testsuite/ld-aarch64/aarch64-elf.exp
index 2602a43..c67ffb1 100644
--- a/ld/testsuite/ld-aarch64/aarch64-elf.exp
+++ b/ld/testsuite/ld-aarch64/aarch64-elf.exp
@@ -285,6 +285,7 @@ run_dump_test "pr17415"
run_dump_test_lp64 "tprel_g2_overflow"
run_dump_test "tprel_add_lo12_overflow"
run_dump_test "protected-data"
+run_dump_test_lp64 "pr22764"
# ifunc tests
run_dump_test "ifunc-1"
diff --git a/ld/testsuite/ld-aarch64/emit-relocs-258.s b/ld/testsuite/ld-aarch64/emit-relocs-258.s
index f724776..87bb657 100644
--- a/ld/testsuite/ld-aarch64/emit-relocs-258.s
+++ b/ld/testsuite/ld-aarch64/emit-relocs-258.s
@@ -1,5 +1,6 @@
+.global dummy
.text
-
+dummy:
ldr x0, .L1
.L1:
diff --git a/ld/testsuite/ld-aarch64/emit-relocs-259.s b/ld/testsuite/ld-aarch64/emit-relocs-259.s
index 7e1ba3c..0977c9d 100644
--- a/ld/testsuite/ld-aarch64/emit-relocs-259.s
+++ b/ld/testsuite/ld-aarch64/emit-relocs-259.s
@@ -1,5 +1,6 @@
+.global dummy
.text
-
+dummy:
ldr x0, .L1
.L1:
diff --git a/ld/testsuite/ld-aarch64/pr22764.d b/ld/testsuite/ld-aarch64/pr22764.d
new file mode 100644
index 0000000..997519f
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/pr22764.d
@@ -0,0 +1,18 @@
+#source: pr22764.s
+#ld: -shared -T relocs.ld -defsym sym_abs1=0x1 -defsym sym_abs2=0x2 -defsym sym_abs3=0x3 -e0 --emit-relocs
+#notarget: aarch64_be-*-*
+#objdump: -dr
+#...
+
+Disassembly of section \.text:
+
+0000000000010000 \<\.text\>:
+ 10000: d503201f nop
+ ...
+ 10004: R_AARCH64_ABS64 sym_abs1
+ 1000c: 00000002 \.word 0x00000002
+ 1000c: R_AARCH64_ABS32 sym_abs2
+ 10010: 0003 \.short 0x0003
+ 10010: R_AARCH64_ABS16 sym_abs3
+ 10012: 0000 \.short 0x0000
+ 10014: d503201f nop
diff --git a/ld/testsuite/ld-aarch64/pr22764.s b/ld/testsuite/ld-aarch64/pr22764.s
new file mode 100644
index 0000000..25e36b4
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/pr22764.s
@@ -0,0 +1,6 @@
+ .text
+ nop
+ .xword sym_abs1
+ .word sym_abs2
+ .short sym_abs3
+ nop
--
2.9.3

10
binutils.spec
View File

@ -62,7 +62,7 @@
Summary: A GNU collection of binary utilities
Name: %{?cross}binutils%{?_with_debug:-debug}
Version: 2.30
Release: 5%{?dist}
Release: 6%{?dist}
License: GPLv3+
Group: Development/Tools
URL: https://sourceware.org/binutils
@ -159,6 +159,10 @@ Patch11: binutils-skip-dwo-search-if-not-needed.patch
# Lifetime: Fixed in 2.30.1 and/or 2.31.
Patch12: binutils-page-to-segment-assignment.patch
# Purpose: Fix a bug in ld for linking against AARCH64 UEFI
# Lifetime: Fixed in 2.30.1 and/or 2.31
Patch13: binutils-2.30-allow_R_AARCH64-symbols.patch
#----------------------------------------------------------------------------
Provides: bundled(libiberty)
@ -296,6 +300,7 @@ using libelf instead of BFD.
%patch10 -p1
%patch11 -p1
%patch12 -p1
%patch13 -p1
# We cannot run autotools as there is an exact requirement of autoconf-2.59.
@ -704,6 +709,9 @@ exit 0
#----------------------------------------------------------------------------
%changelog
* Thu Feb 22 2018 Patrick Uiterwijk <patrick@puiterwijk.org> - 2.30-6
- Fix R_AARCH64 symbols (PR 22764) (#1547781)
* Wed Feb 21 2018 Nick Clifton <nickc@redhat.com> 2.30-5
- Fix assignment of pages to segments. (PR 22758)
- Inject RPM_LD_FLAGS into the build. (#1541027)