[OE-core] [PATCH V2] binutils-2.20.1: import several patches from Debian
Khem Raj
raj.khem at gmail.com
Tue Aug 16 23:01:59 UTC 2011
On Tue, Aug 16, 2011 at 2:39 PM, Saul Wold <sgw at linux.intel.com> wrote:
> On 08/16/2011 01:07 AM, Dmitry Eremin-Solenikov wrote:
>>
>> Import several patches from Debian to improve --no-add-needed handling
>> vs. weak symbols and branching to weak symbols on arm.
>>
>> Signed-off-by: Dmitry Eremin-Solenikov<dbaryshkov at gmail.com>
>> ---
>> .../152_arm_branches_to_weak_symbols.patch | 240
>> ++++++++++++++++++++
>> .../binutils-2.20.1/200_elflink_%B_fixes.patch | 65 ++++++
>> .../201_elflink_improve_noaddneeded_errors.patch | 70 ++++++
>> .../202_elflink_noaddneeded_vs_weak.patch | 87 +++++++
>> .../recipes-devtools/binutils/binutils_2.20.1.bb | 6 +-
>> 5 files changed, 467 insertions(+), 1 deletions(-)
>> create mode 100644
>> meta-oe/recipes-devtools/binutils/binutils-2.20.1/152_arm_branches_to_weak_symbols.patch
>> create mode 100644
>> meta-oe/recipes-devtools/binutils/binutils-2.20.1/200_elflink_%B_fixes.patch
>> create mode 100644
>> meta-oe/recipes-devtools/binutils/binutils-2.20.1/201_elflink_improve_noaddneeded_errors.patch
>> create mode 100644
>> meta-oe/recipes-devtools/binutils/binutils-2.20.1/202_elflink_noaddneeded_vs_weak.patch
>>
> These patches need additional patch headers for OE-Core,
they are for meta-oe not for oe-core however more info on patches is
always an improvement
and helps later maintenance
I know they already
> contain some info, but please add Signed-off-by and Upstream-Status (if
> appropriate).
>
> http://wiki.openembedded.org/index.php/Commit_Patch_Message_Guidelines
>
> Thanks
> Sau!
>
>
>> diff --git
>> a/meta-oe/recipes-devtools/binutils/binutils-2.20.1/152_arm_branches_to_weak_symbols.patch
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/152_arm_branches_to_weak_symbols.patch
>> new file mode 100644
>> index 0000000..48523f8
>> --- /dev/null
>> +++
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/152_arm_branches_to_weak_symbols.patch
>> @@ -0,0 +1,240 @@
>> +#!/bin/sh -e
>> +## 152_arm_branches_to_weak_symbols.dpatch
>> +##
>> +## DP: Description:
>> http://sourceware.org/ml/binutils/2010-04/msg00446.html
>> +## DP: Description: taken from the trunk
>> +
>> +if [ $# -ne 1 ]; then
>> + echo>&2 "`basename $0`: script expects -patch|-unpatch as argument"
>> + exit 1
>> +fi
>> +
>> +[ -f debian/patches/00patch-opts ]&& . debian/patches/00patch-opts
>> +patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
>> +
>> +case "$1" in
>> + -patch) patch $patch_opts -p0< $0;;
>> + -unpatch) patch $patch_opts -p0 -R< $0;;
>> + *)
>> + echo>&2 "`basename $0`: script expects -patch|-unpatch as
>> argument"
>> + exit 1;;
>> +esac
>> +
>> +exit 0
>> +
>> +gas/
>> +
>> +2010-05-04 Nick Clifton<nickc at redhat.com>
>> +
>> + * write.c (fixup_segment): Revert previous delta.
>> + * config/tc-arm.h (TC_FORCE_RELOCATION_LOCAL): Also force the
>> + generation of relocations for fixups against weak symbols.
>> +
>> +2010-04-29 Nathan Sidwell<nathan at codesourcery.com>
>> +
>> + * write.c (fixup_segment): Do not assume we know the section a
>> + defined weak symbol is in.
>> + * config/tc-arm.c (relax_adr, relax_branch, md_apply_fix): Treat
>> + weak symbols as not known to be in the same section, even if they
>> + are defined.
>> +
>> +gas/testsuite/
>> +
>> +2010-04-29 Nathan Sidwell<nathan at codesourcery.com>
>> +
>> + * gas/arm/weakdef-1.s: New.
>> + * gas/arm/weakdef-1.d: New.
>> + * gas/arm/weakdef-2.s: New.
>> + * gas/arm/weakdef-2.d: New.
>> + * gas/arm/weakdef-2.l: New.
>> +
>> + at DPATCH@
>> +diff -urN gas.orig/config/tc-arm.c gas/config/tc-arm.c
>> +--- a/gas/config/tc-arm.c 2010-02-22 08:06:52.000000000 +0000
>> ++++ b/gas/config/tc-arm.c 2010-05-06 12:52:25.391085365 +0000
>> +@@ -18207,7 +18207,8 @@
>> +
>> + /* Assume worst case for symbols not known to be in the same section.
>> */
>> + if (!S_IS_DEFINED (fragp->fr_symbol)
>> +- || sec != S_GET_SEGMENT (fragp->fr_symbol))
>> ++ || sec != S_GET_SEGMENT (fragp->fr_symbol)
>> ++ || S_IS_WEAK (fragp->fr_symbol))
>> + return 4;
>> +
>> + val = relaxed_symbol_addr (fragp, stretch);
>> +@@ -18250,7 +18251,8 @@
>> +
>> + /* Assume worst case for symbols not known to be in the same section.
>> */
>> + if (!S_IS_DEFINED (fragp->fr_symbol)
>> +- || sec != S_GET_SEGMENT (fragp->fr_symbol))
>> ++ || sec != S_GET_SEGMENT (fragp->fr_symbol)
>> ++ || S_IS_WEAK (fragp->fr_symbol))
>> + return 4;
>> +
>> + #ifdef OBJ_ELF
>> +@@ -19463,22 +19465,23 @@
>> + not have a reloc for it, so tc_gen_reloc will reject it. */
>> + fixP->fx_done = 1;
>> +
>> +- if (fixP->fx_addsy
>> +- && ! S_IS_DEFINED (fixP->fx_addsy))
>> ++ if (fixP->fx_addsy)
>> + {
>> +- as_bad_where (fixP->fx_file, fixP->fx_line,
>> +- _("undefined symbol %s used as an immediate
>> value"),
>> +- S_GET_NAME (fixP->fx_addsy));
>> +- break;
>> +- }
>> ++ const char *msg = 0;
>> +
>> +- if (fixP->fx_addsy
>> +- && S_GET_SEGMENT (fixP->fx_addsy) != seg)
>> +- {
>> +- as_bad_where (fixP->fx_file, fixP->fx_line,
>> +- _("symbol %s is in a different section"),
>> +- S_GET_NAME (fixP->fx_addsy));
>> +- break;
>> ++ if (! S_IS_DEFINED (fixP->fx_addsy))
>> ++ msg = _("undefined symbol %s used as an immediate value");
>> ++ else if (S_GET_SEGMENT (fixP->fx_addsy) != seg)
>> ++ msg = _("symbol %s is in a different section");
>> ++ else if (S_IS_WEAK (fixP->fx_addsy))
>> ++ msg = _("symbol %s is weak and may be overridden later");
>> ++
>> ++ if (msg)
>> ++ {
>> ++ as_bad_where (fixP->fx_file, fixP->fx_line,
>> ++ msg, S_GET_NAME (fixP->fx_addsy));
>> ++ break;
>> ++ }
>> + }
>> +
>> + newimm = encode_arm_immediate (value);
>> +@@ -19504,24 +19507,25 @@
>> + unsigned int highpart = 0;
>> + unsigned int newinsn = 0xe1a00000; /* nop. */
>> +
>> +- if (fixP->fx_addsy
>> +- && ! S_IS_DEFINED (fixP->fx_addsy))
>> ++ if (fixP->fx_addsy)
>> + {
>> +- as_bad_where (fixP->fx_file, fixP->fx_line,
>> +- _("undefined symbol %s used as an immediate
>> value"),
>> +- S_GET_NAME (fixP->fx_addsy));
>> +- break;
>> +- }
>> ++ const char *msg = 0;
>> +
>> +- if (fixP->fx_addsy
>> +- && S_GET_SEGMENT (fixP->fx_addsy) != seg)
>> +- {
>> +- as_bad_where (fixP->fx_file, fixP->fx_line,
>> +- _("symbol %s is in a different section"),
>> +- S_GET_NAME (fixP->fx_addsy));
>> +- break;
>> ++ if (! S_IS_DEFINED (fixP->fx_addsy))
>> ++ msg = _("undefined symbol %s used as an immediate value");
>> ++ else if (S_GET_SEGMENT (fixP->fx_addsy) != seg)
>> ++ msg = _("symbol %s is in a different section");
>> ++ else if (S_IS_WEAK (fixP->fx_addsy))
>> ++ msg = _("symbol %s is weak and may be overridden later");
>> ++
>> ++ if (msg)
>> ++ {
>> ++ as_bad_where (fixP->fx_file, fixP->fx_line,
>> ++ msg, S_GET_NAME (fixP->fx_addsy));
>> ++ break;
>> ++ }
>> + }
>> +-
>> ++
>> + newimm = encode_arm_immediate (value);
>> + temp = md_chars_to_number (buf, INSN_SIZE);
>> +
>> +diff -urN gas.orig/config/tc-arm.h gas/config/tc-arm.h
>> +--- a/gas/config/tc-arm.h 2009-09-01 00:24:01.000000000 +0000
>> ++++ b/gas/config/tc-arm.h 2010-05-06 12:53:42.784835970 +0000
>> +@@ -183,6 +183,7 @@
>> + (!(FIX)->fx_pcrel \
>> + || (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32 \
>> + || (FIX)->fx_r_type == BFD_RELOC_32 \
>> ++ || ((FIX)->fx_addsy != NULL&& S_IS_WEAK ((FIX)->fx_addsy)) \
>> + || TC_FORCE_RELOCATION (FIX))
>> +
>> + /* Force output of R_ARM_REL32 relocations against thumb function
>> symbols.
>> +diff -urN gas.orig/testsuite/gas/arm/weakdef-1.d
>> gas/testsuite/gas/arm/weakdef-1.d
>> +--- a/gas/testsuite/gas/arm/weakdef-1.d 1970-01-01
>> 00:00:00.000000000 +0000
>> ++++ b/gas/testsuite/gas/arm/weakdef-1.d 2010-05-06
>> 12:52:25.391085365 +0000
>> +@@ -0,0 +1,20 @@
>> ++# name: Thumb branch to weak
>> ++# as:
>> ++# objdump: -dr
>> ++# This test is only valid on ELF based ports.
>> ++#not-target: *-*-*coff *-*-pe *-*-wince *-*-*aout* *-*-netbsd
>> *-*-riscix*
>> ++
>> ++.*: +file format .*arm.*
>> ++
>> ++
>> ++Disassembly of section .text:
>> ++
>> ++0+000<Weak>:
>> ++ 0: e7fe b.n 2<Strong>
>> ++ 0: R_ARM_THM_JUMP11 Strong
>> ++
>> ++0+002<Strong>:
>> ++ 2: f7ff bffe b.w 0<Random>
>> ++ 2: R_ARM_THM_JUMP24 Random
>> ++ 6: f7ff bffe b.w 0<Weak>
>> ++ 6: R_ARM_THM_JUMP24 Weak
>> +diff -urN gas.orig/testsuite/gas/arm/weakdef-1.s
>> gas/testsuite/gas/arm/weakdef-1.s
>> +--- a/gas/testsuite/gas/arm/weakdef-1.s 1970-01-01
>> 00:00:00.000000000 +0000
>> ++++ b/gas/testsuite/gas/arm/weakdef-1.s 2010-05-06
>> 12:52:25.391085365 +0000
>> +@@ -0,0 +1,18 @@
>> ++ .syntax unified
>> ++ .text
>> ++ .thumb
>> ++
>> ++ .globl Weak
>> ++ .weak Weak
>> ++ .thumb_func
>> ++ .type Weak, %function
>> ++Weak:
>> ++ b Strong
>> ++ .size Weak, .-Weak
>> ++
>> ++ .globl Strong
>> ++ .type Strong, %function
>> ++Strong:
>> ++ b Random
>> ++ b Weak
>> ++ .size Strong, .-Strong
>> +diff -urN gas.orig/testsuite/gas/arm/weakdef-2.d
>> gas/testsuite/gas/arm/weakdef-2.d
>> +--- a/gas/testsuite/gas/arm/weakdef-2.d 1970-01-01
>> 00:00:00.000000000 +0000
>> ++++ b/gas/testsuite/gas/arm/weakdef-2.d 2010-05-06
>> 12:52:25.391085365 +0000
>> +@@ -0,0 +1,5 @@
>> ++# name: adr of weak
>> ++# as:
>> ++# error-output: weakdef-2.l
>> ++# This test is only valid on ELF based ports.
>> ++#not-target: *-*-*coff *-*-pe *-*-wince *-*-*aout* *-*-netbsd
>> *-*-riscix*
>> +diff -urN gas.orig/testsuite/gas/arm/weakdef-2.l
>> gas/testsuite/gas/arm/weakdef-2.l
>> +--- a/gas/testsuite/gas/arm/weakdef-2.l 1970-01-01
>> 00:00:00.000000000 +0000
>> ++++ b/gas/testsuite/gas/arm/weakdef-2.l 2010-05-06
>> 12:52:25.391085365 +0000
>> +@@ -0,0 +1,3 @@
>> ++[^:]*: Assembler messages:
>> ++[^:]*:9: Error: symbol Weak is weak and may be overridden later
>> ++[^:]*:10: Error: symbol Weak is weak and may be overridden later
>> +diff -urN gas.orig/testsuite/gas/arm/weakdef-2.s
>> gas/testsuite/gas/arm/weakdef-2.s
>> +--- a/gas/testsuite/gas/arm/weakdef-2.s 1970-01-01
>> 00:00:00.000000000 +0000
>> ++++ b/gas/testsuite/gas/arm/weakdef-2.s 2010-05-06
>> 12:52:25.391085365 +0000
>> +@@ -0,0 +1,10 @@
>> ++ .syntax unified
>> ++ .text
>> ++ .globl Strong
>> ++Strong:
>> ++ adrl r0,Strong
>> ++ adr r0,Strong
>> ++ .globl Weak
>> ++ .weak Weak
>> ++Weak: adrl r0,Weak
>> ++ adr r0,Weak
>> diff --git
>> a/meta-oe/recipes-devtools/binutils/binutils-2.20.1/200_elflink_%B_fixes.patch
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/200_elflink_%B_fixes.patch
>> new file mode 100644
>> index 0000000..ac81685
>> --- /dev/null
>> +++
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/200_elflink_%B_fixes.patch
>> @@ -0,0 +1,65 @@
>> +#! /bin/sh /usr/share/dpatch/dpatch-run
>> +## 200_elflink_%B_fixes.dpatch by<kirr at landau.phys.spbu.ru>
>> +##
>> +## All lines beginning with `## DP:' are a description of the patch.
>> +## DP: Description: Fixes several msgs; needed for later elflink patches
>> +## DP: Upstream status: submitted upstream for binutils-2_20-branch
>> +
>> +2010-08-07 Kirill Smelkov<kirr at landau.phys.spbu.ru>
>> +
>> + Backport from mainline:
>> + 2009-10-12 Roland McGrath<roland at frob.com>
>> +
>> + * elflink.c (elf_link_add_object_symbols, _bfd_elf_merge_symbol):
>> + Fix %s that should be %B in several message formats.
>> +
>> + at DPATCH@
>> +diff --git a/bfd/elflink.c b/bfd/elflink.c
>> +index c42c6e1..4a348de 100644
>> +--- a/bfd/elflink.c
>> ++++ b/bfd/elflink.c
>> +@@ -1110,19 +1110,19 @@ _bfd_elf_merge_symbol (bfd *abfd,
>> +
>> + if (tdef&& ntdef)
>> + (*_bfd_error_handler)
>> +- (_("%s: TLS definition in %B section %A mismatches non-TLS
>> definition in %B section %A"),
>> ++ (_("%B: TLS definition in %B section %A mismatches non-TLS
>> definition in %B section %A"),
>> + tbfd, tsec, ntbfd, ntsec, h->root.root.string);
>> + else if (!tdef&& !ntdef)
>> + (*_bfd_error_handler)
>> +- (_("%s: TLS reference in %B mismatches non-TLS reference in
>> %B"),
>> ++ (_("%B: TLS reference in %B mismatches non-TLS reference in
>> %B"),
>> + tbfd, ntbfd, h->root.root.string);
>> + else if (tdef)
>> + (*_bfd_error_handler)
>> +- (_("%s: TLS definition in %B section %A mismatches non-TLS
>> reference in %B"),
>> ++ (_("%B: TLS definition in %B section %A mismatches non-TLS
>> reference in %B"),
>> + tbfd, tsec, ntbfd, h->root.root.string);
>> + else
>> + (*_bfd_error_handler)
>> +- (_("%s: TLS reference in %B mismatches non-TLS definition in %B
>> section %A"),
>> ++ (_("%B: TLS reference in %B mismatches non-TLS definition in %B
>> section %A"),
>> + tbfd, ntbfd, ntsec, h->root.root.string);
>> +
>> + bfd_set_error (bfd_error_bad_value);
>> +@@ -4437,7 +4437,7 @@ error_free_dyn:
>> + if ((elf_dyn_lib_class (abfd)& DYN_NO_NEEDED) != 0)
>> + {
>> + (*_bfd_error_handler)
>> +- (_("%s: invalid DSO for symbol `%s' definition"),
>> ++ (_("%B: invalid DSO for symbol `%s' definition"),
>> + abfd, name);
>> + bfd_set_error (bfd_error_bad_value);
>> + goto error_free_vers;
>> +@@ -12495,7 +12495,7 @@ _bfd_elf_get_dynamic_reloc_section (bfd *
>> abfd,
>> + section does not exist it is created and attached to the DYNOBJ
>> + bfd and stored in the SRELOC field of SEC's elf_section_data
>> + structure.
>> +-
>> ++
>> + ALIGNMENT is the alignment for the newly created section and
>> + IS_RELA defines whether the name should be .rela.<SEC's name>
>> + or .rel.<SEC's name>. The section name is looked up in the
>> +--
>> +1.7.2.1.44.g721e7
>> +
>> diff --git
>> a/meta-oe/recipes-devtools/binutils/binutils-2.20.1/201_elflink_improve_noaddneeded_errors.patch
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/201_elflink_improve_noaddneeded_errors.patch
>> new file mode 100644
>> index 0000000..85675a3
>> --- /dev/null
>> +++
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/201_elflink_improve_noaddneeded_errors.patch
>> @@ -0,0 +1,70 @@
>> +#! /bin/sh /usr/share/dpatch/dpatch-run
>> +## 201_elflink_improve_errors.dpatch by<kirr at landau.phys.spbu.ru>
>> +##
>> +## All lines beginning with `## DP:' are a description of the patch.
>> +## DP: Improves error messages regarding -no-add-needed cases; needed for
>> +## DP: later elflink patches
>> +## DP: Upstream status: submitted upstream for binutils-2_20-branch
>> +
>> +2010-08-07 Kirill Smelkov<kirr at landau.phys.spbu.ru>
>> +
>> + Backport from mainline:
>> + 2009-11-05 Nick Clifton<nickc at redhat.com>
>> +
>> + * elflink.c (elf_link_add_object_symbols): Improve error
>> + message generated when a symbol is left unresolved because a
>> + --no-add-needed command line option has prevented the
>> + inclusion of the DSO defining it.
>> +
>> + at DPATCH@
>> +diff --git a/bfd/elflink.c b/bfd/elflink.c
>> +index 4a348de..10eee8c 100644
>> +--- a/bfd/elflink.c
>> ++++ b/bfd/elflink.c
>> +@@ -3866,6 +3866,7 @@ error_free_dyn:
>> + bfd_boolean common;
>> + unsigned int old_alignment;
>> + bfd *old_bfd;
>> ++ bfd * undef_bfd = NULL;
>> +
>> + override = FALSE;
>> +
>> +@@ -4097,6 +4098,20 @@ error_free_dyn:
>> + name = newname;
>> + }
>> +
>> ++ /* If this is a definition of a previously undefined symbol
>> ++ make a note of the bfd that contained the reference in
>> ++ case we need to refer to it later on in error messages. */
>> ++ if (! bfd_is_und_section (sec))
>> ++ {
>> ++ h = elf_link_hash_lookup (elf_hash_table (info), name,
>> FALSE, FALSE, FALSE);
>> ++
>> ++ if (h != NULL
>> ++ && (h->root.type == bfd_link_hash_undefined
>> ++ || h->root.type == bfd_link_hash_undefweak)
>> ++ && h->root.u.undef.abfd)
>> ++ undef_bfd = h->root.u.undef.abfd;
>> ++ }
>> ++
>> + if (!_bfd_elf_merge_symbol (abfd, info, name, isym,&sec,
>> + &value,&old_alignment,
>> + sym_hash,&skip,&override,
>> +@@ -4437,9 +4452,12 @@ error_free_dyn:
>> + if ((elf_dyn_lib_class (abfd)& DYN_NO_NEEDED) != 0)
>> + {
>> + (*_bfd_error_handler)
>> +- (_("%B: invalid DSO for symbol `%s' definition"),
>> ++ (_("%B: undefined reference to symbol '%s'"),
>> ++ undef_bfd == NULL ? info->output_bfd : undef_bfd,
>> name);
>> ++ (*_bfd_error_handler)
>> ++ (_("note: '%s' is defined in DSO %B so try adding it
>> to the linker command line"),
>> + abfd, name);
>> +- bfd_set_error (bfd_error_bad_value);
>> ++ bfd_set_error (bfd_error_invalid_operation);
>> + goto error_free_vers;
>> + }
>> +
>> +--
>> +1.7.2.1.44.g721e7
>> +
>> diff --git
>> a/meta-oe/recipes-devtools/binutils/binutils-2.20.1/202_elflink_noaddneeded_vs_weak.patch
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/202_elflink_noaddneeded_vs_weak.patch
>> new file mode 100644
>> index 0000000..a7dbc7a
>> --- /dev/null
>> +++
>> b/meta-oe/recipes-devtools/binutils/binutils-2.20.1/202_elflink_noaddneeded_vs_weak.patch
>> @@ -0,0 +1,87 @@
>> +#! /bin/sh /usr/share/dpatch/dpatch-run
>> +## 202_elflink_noaddneeded_vs_weak.dpatch by<kirr at landau.phys.spbu.ru>
>> +##
>> +## All lines beginning with `## DP:' are a description of the patch.
>> +## DP: Fixes '-no-add-needed breaks linking with weak symbols'
>> +## DP: Upstream status: submitted upstream for binutils-2_20-branch
>> +
>> +
>> +2010-08-07 Kirill Smelkov<kirr at landau.phys.spbu.ru>
>> +
>> + Backport from mainline:
>> + 2010-01-21 Nick Clifton<nickc at redhat.com>
>> +
>> + * elflink.c (elf_link_add_object_symbols): Look up name of
>> + undefined symbol both before and after versioning has been
>> + applied. Do not bother with symbols that are weakly undefined.
>> +
>> +
>> + at DPATCH@
>> +diff --git a/bfd/elflink.c b/bfd/elflink.c
>> +index 10eee8c..e058064 100644
>> +--- a/bfd/elflink.c
>> ++++ b/bfd/elflink.c
>> +@@ -3991,6 +3991,20 @@ error_free_dyn:
>> + unsigned int vernum = 0;
>> + bfd_boolean skip;
>> +
>> ++ /* If this is a definition of a symbol which was previously
>> ++ referenced in a non-weak manner then make a note of the bfd
>> ++ that contained the reference. This is used if we need to
>> ++ refer to the source of the reference later on. */
>> ++ if (! bfd_is_und_section (sec))
>> ++ {
>> ++ h = elf_link_hash_lookup (elf_hash_table (info), name,
>> FALSE, FALSE, FALSE);
>> ++
>> ++ if (h != NULL
>> ++ && h->root.type == bfd_link_hash_undefined
>> ++ && h->root.u.undef.abfd)
>> ++ undef_bfd = h->root.u.undef.abfd;
>> ++ }
>> ++
>> + if (ever == NULL)
>> + {
>> + if (info->default_imported_symver)
>> +@@ -4098,16 +4112,15 @@ error_free_dyn:
>> + name = newname;
>> + }
>> +
>> +- /* If this is a definition of a previously undefined symbol
>> +- make a note of the bfd that contained the reference in
>> +- case we need to refer to it later on in error messages. */
>> +- if (! bfd_is_und_section (sec))
>> ++ /* If necessary, make a second attempt to locate the bfd
>> ++ containing an unresolved, non-weak reference to the
>> ++ current symbol. */
>> ++ if (! bfd_is_und_section (sec)&& undef_bfd == NULL)
>> + {
>> + h = elf_link_hash_lookup (elf_hash_table (info), name,
>> FALSE, FALSE, FALSE);
>> +
>> + if (h != NULL
>> +- && (h->root.type == bfd_link_hash_undefined
>> +- || h->root.type == bfd_link_hash_undefweak)
>> ++ && h->root.type == bfd_link_hash_undefined
>> + && h->root.u.undef.abfd)
>> + undef_bfd = h->root.u.undef.abfd;
>> + }
>> +@@ -4448,12 +4461,14 @@ error_free_dyn:
>> + /* A symbol from a library loaded via DT_NEEDED of some
>> + other library is referenced by a regular object.
>> + Add a DT_NEEDED entry for it. Issue an error if
>> +- --no-add-needed is used. */
>> +- if ((elf_dyn_lib_class (abfd)& DYN_NO_NEEDED) != 0)
>> ++ --no-add-needed is used and the reference was not
>> ++ a weak one. */
>> ++ if (undef_bfd != NULL
>> ++ && (elf_dyn_lib_class (abfd)& DYN_NO_NEEDED) != 0)
>> + {
>> + (*_bfd_error_handler)
>> + (_("%B: undefined reference to symbol '%s'"),
>> +- undef_bfd == NULL ? info->output_bfd : undef_bfd,
>> name);
>> ++ undef_bfd, name);
>> + (*_bfd_error_handler)
>> + (_("note: '%s' is defined in DSO %B so try adding it
>> to the linker command line"),
>> + abfd, name);
>> +--
>> +1.7.2.1.44.g721e7
>> +
>> diff --git a/meta-oe/recipes-devtools/binutils/binutils_2.20.1.bb
>> b/meta-oe/recipes-devtools/binutils/binutils_2.20.1.bb
>> index 6961a46..2558bda 100644
>> --- a/meta-oe/recipes-devtools/binutils/binutils_2.20.1.bb
>> +++ b/meta-oe/recipes-devtools/binutils/binutils_2.20.1.bb
>> @@ -1,6 +1,6 @@
>> require binutils.inc
>>
>> -PR = "r5"
>> +PR = "r6"
>>
>> LIC_FILES_CHKSUM="\
>> file://src-release;endline=17;md5=4830a9ef968f3b18dd5e9f2c00db2d35\
>> @@ -30,6 +30,10 @@ SRC_URI = "\
>> file://libiberty_path_fix.patch \
>> file://binutils-poison.patch \
>> file://libtool-rpath-fix.patch \
>> + file://152_arm_branches_to_weak_symbols.patch \
>> + file://200_elflink_%B_fixes.patch \
>> + file://201_elflink_improve_noaddneeded_errors.patch \
>> + file://202_elflink_noaddneeded_vs_weak.patch \
>> "
>>
>> SRC_URI[md5sum] = "9cdfb9d6ec0578c166d3beae5e15c4e5"
>
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