* PR 21384, --dynamic-list regression with f02cb058
@ 2017-05-02 15:22 Alan Modra
2017-05-02 20:57 ` H.J. Lu
0 siblings, 1 reply; 8+ messages in thread
From: Alan Modra @ 2017-05-02 15:22 UTC (permalink / raw)
To: binutils
The commit to "Always descend into output section statements in
lang_do_assignments" meant that linker script symbols were not
bfd_link_hash_new when ld called bfd_elf_record_link_assignment.
This patch corrects that problem by testing h->non_elf instead.
PR 21384
* elflink.c (bfd_elf_link_mark_dynamic_symbol): Test h->non_elf
rather than h->root.type == bfd_link_hash_new.
(bfd_elf_record_link_assignment): Similarly, call
bfd_elf_link_mark_dynamic_symbol when h->non_elf.
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index dff6a59..c62cf13 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2017-05-02 Alan Modra <amodra@gmail.com>
+
+ PR 21384
+ * elflink.c (bfd_elf_link_mark_dynamic_symbol): Test h->non_elf
+ rather than h->root.type == bfd_link_hash_new.
+ (bfd_elf_record_link_assignment): Similarly, call
+ bfd_elf_link_mark_dynamic_symbol when h->non_elf.
+
2017-04-29 Alan Modra <amodra@gmail.com>
PR 21432
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 4af4b1c..9acc069 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -580,7 +580,7 @@ bfd_elf_link_mark_dynamic_symbol (struct bfd_link_info *info,
&& (ELF_ST_TYPE (sym->st_info) == STT_OBJECT
|| ELF_ST_TYPE (sym->st_info) == STT_COMMON))))
|| (d != NULL
- && h->root.type == bfd_link_hash_new
+ && h->non_elf
&& (*d->match) (&d->head, NULL, h->root.root.string)))
h->dynamic = 1;
}
@@ -623,6 +623,14 @@ bfd_elf_record_link_assignment (bfd *output_bfd,
}
}
+ /* Symbols defined in a linker script but not referenced anywhere
+ else will have non_elf set. */
+ if (h->non_elf)
+ {
+ bfd_elf_link_mark_dynamic_symbol (info, h, NULL);
+ h->non_elf = 0;
+ }
+
switch (h->root.type)
{
case bfd_link_hash_defined:
@@ -639,8 +647,6 @@ bfd_elf_record_link_assignment (bfd *output_bfd,
bfd_link_repair_undef_list (&htab->root);
break;
case bfd_link_hash_new:
- bfd_elf_link_mark_dynamic_symbol (info, h, NULL);
- h->non_elf = 0;
break;
case bfd_link_hash_indirect:
/* We had a versioned symbol in a dynamic library. We make the
--
Alan Modra
Australia Development Lab, IBM
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-02 15:22 PR 21384, --dynamic-list regression with f02cb058 Alan Modra
@ 2017-05-02 20:57 ` H.J. Lu
2017-05-02 22:28 ` Alan Modra
2017-05-03 13:44 ` Maciej W. Rozycki
0 siblings, 2 replies; 8+ messages in thread
From: H.J. Lu @ 2017-05-02 20:57 UTC (permalink / raw)
To: Alan Modra; +Cc: Binutils
[-- Attachment #1: Type: text/plain, Size: 2494 bytes --]
On Tue, May 2, 2017 at 8:22 AM, Alan Modra <amodra@gmail.com> wrote:
> The commit to "Always descend into output section statements in
> lang_do_assignments" meant that linker script symbols were not
> bfd_link_hash_new when ld called bfd_elf_record_link_assignment.
> This patch corrects that problem by testing h->non_elf instead.
>
> PR 21384
> * elflink.c (bfd_elf_link_mark_dynamic_symbol): Test h->non_elf
> rather than h->root.type == bfd_link_hash_new.
> (bfd_elf_record_link_assignment): Similarly, call
> bfd_elf_link_mark_dynamic_symbol when h->non_elf.
>
> diff --git a/bfd/ChangeLog b/bfd/ChangeLog
> index dff6a59..c62cf13 100644
> --- a/bfd/ChangeLog
> +++ b/bfd/ChangeLog
> @@ -1,3 +1,11 @@
> +2017-05-02 Alan Modra <amodra@gmail.com>
> +
> + PR 21384
> + * elflink.c (bfd_elf_link_mark_dynamic_symbol): Test h->non_elf
> + rather than h->root.type == bfd_link_hash_new.
> + (bfd_elf_record_link_assignment): Similarly, call
> + bfd_elf_link_mark_dynamic_symbol when h->non_elf.
> +
> 2017-04-29 Alan Modra <amodra@gmail.com>
>
> PR 21432
> diff --git a/bfd/elflink.c b/bfd/elflink.c
> index 4af4b1c..9acc069 100644
> --- a/bfd/elflink.c
> +++ b/bfd/elflink.c
> @@ -580,7 +580,7 @@ bfd_elf_link_mark_dynamic_symbol (struct bfd_link_info *info,
> && (ELF_ST_TYPE (sym->st_info) == STT_OBJECT
> || ELF_ST_TYPE (sym->st_info) == STT_COMMON))))
> || (d != NULL
> - && h->root.type == bfd_link_hash_new
> + && h->non_elf
> && (*d->match) (&d->head, NULL, h->root.root.string)))
> h->dynamic = 1;
> }
> @@ -623,6 +623,14 @@ bfd_elf_record_link_assignment (bfd *output_bfd,
> }
> }
>
> + /* Symbols defined in a linker script but not referenced anywhere
> + else will have non_elf set. */
> + if (h->non_elf)
> + {
> + bfd_elf_link_mark_dynamic_symbol (info, h, NULL);
> + h->non_elf = 0;
> + }
> +
> switch (h->root.type)
> {
> case bfd_link_hash_defined:
> @@ -639,8 +647,6 @@ bfd_elf_record_link_assignment (bfd *output_bfd,
> bfd_link_repair_undef_list (&htab->root);
> break;
> case bfd_link_hash_new:
> - bfd_elf_link_mark_dynamic_symbol (info, h, NULL);
> - h->non_elf = 0;
> break;
> case bfd_link_hash_indirect:
> /* We had a versioned symbol in a dynamic library. We make the
>
I checked in a test for this.
--
H.J.
[-- Attachment #2: 0001-Add-a-test-for-PR-ld-21384.patch --]
[-- Type: text/x-patch, Size: 3022 bytes --]
From 640226f048b67d79da85742728e40114c9ee5da0 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Tue, 2 May 2017 13:54:22 -0700
Subject: [PATCH] Add a test for PR ld/21384
PR ld/21384
* testsuite/ld-elf/pr21384.d: New file.
* testsuite/ld-elf/pr21384.dl: Likewise.
* testsuite/ld-elf/pr21384.ld: Likewise.
* testsuite/ld-elf/pr21384.s: Likewise.
---
ld/ChangeLog | 8 ++++++++
ld/testsuite/ld-elf/pr21384.d | 11 +++++++++++
ld/testsuite/ld-elf/pr21384.dl | 4 ++++
ld/testsuite/ld-elf/pr21384.ld | 22 ++++++++++++++++++++++
ld/testsuite/ld-elf/pr21384.s | 2 ++
5 files changed, 47 insertions(+)
create mode 100644 ld/testsuite/ld-elf/pr21384.d
create mode 100644 ld/testsuite/ld-elf/pr21384.dl
create mode 100644 ld/testsuite/ld-elf/pr21384.ld
create mode 100644 ld/testsuite/ld-elf/pr21384.s
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 238404d..4fc4e1d 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2017-05-02 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/21384
+ * testsuite/ld-elf/pr21384.d: New file.
+ * testsuite/ld-elf/pr21384.dl: Likewise.
+ * testsuite/ld-elf/pr21384.ld: Likewise.
+ * testsuite/ld-elf/pr21384.s: Likewise.
+
2017-05-01 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ld-i386/tls.exp: Run GNU2 TLS tests only if there
diff --git a/ld/testsuite/ld-elf/pr21384.d b/ld/testsuite/ld-elf/pr21384.d
new file mode 100644
index 0000000..5a3aedc
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21384.d
@@ -0,0 +1,11 @@
+#ld: -T pr21384.ld --dynamic-list $srcdir/$subdir/pr21384.dl --no-dynamic-linker
+#readelf : --dyn-syms --wide
+#target: *-*-linux* *-*-gnu* *-*-solaris*
+
+Symbol table '\.dynsym' contains [0-9]+ entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +0: 0+ +0 +NOTYPE +LOCAL +DEFAULT +UND +
+#...
+ +[0-9]+: +[a-f0-9]+ +0 +NOTYPE +GLOBAL +DEFAULT +[0-9]+ +edata
+ +[0-9]+: +[a-f0-9]+ +0 +NOTYPE +GLOBAL +DEFAULT +[0-9]+ +fdata
+#pass
diff --git a/ld/testsuite/ld-elf/pr21384.dl b/ld/testsuite/ld-elf/pr21384.dl
new file mode 100644
index 0000000..b164dc0
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21384.dl
@@ -0,0 +1,4 @@
+{
+ fdata;
+ edata;
+};
diff --git a/ld/testsuite/ld-elf/pr21384.ld b/ld/testsuite/ld-elf/pr21384.ld
new file mode 100644
index 0000000..034887d
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21384.ld
@@ -0,0 +1,22 @@
+SECTIONS
+{
+ .data :
+ {
+ fdata = .;
+ *(.data)
+ edata = .;
+ }
+ .dynamic : { *(.dynamic) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .gnu.version : { *(.gnu.version) }
+ .gnu.version_d : { *(.gnu.version_d) }
+ .shstrtab : { *(.shstrtab) }
+ .symtab : { *(.symtab) }
+ .strtab : { *(.strtab) }
+ .plt : { *(.plt) }
+ .got.plt : { *(.got.plt) }
+ .got : { *(.got) }
+ /DISCARD/ : { *(*) }
+}
diff --git a/ld/testsuite/ld-elf/pr21384.s b/ld/testsuite/ld-elf/pr21384.s
new file mode 100644
index 0000000..ece49d5
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr21384.s
@@ -0,0 +1,2 @@
+ .data
+ .byte 0
--
2.9.3
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-02 20:57 ` H.J. Lu
@ 2017-05-02 22:28 ` Alan Modra
2017-05-02 23:03 ` H.J. Lu
2017-05-03 13:44 ` Maciej W. Rozycki
1 sibling, 1 reply; 8+ messages in thread
From: Alan Modra @ 2017-05-02 22:28 UTC (permalink / raw)
To: H.J. Lu; +Cc: Binutils
On Tue, May 02, 2017 at 01:57:49PM -0700, H.J. Lu wrote:
> I checked in a test for this.
Thanks. Incidentally, on my x86_64-linux box I've been seeing
Executing on host: sh -c {gcc -B/home/alan/build/gas/all/ld/tmpdir/ld/ -L/usr/local/x86_64-linux/lib64 -L/usr/local/lib64 -L/lib64 -L/usr/lib64 -L/usr/local/x86_64-linux/lib -L/usr/local/lib -L/lib -L/usr/lib -o tmpdir/tls-1en -L/home/alan/src/binutils-gdb/ld/testsuite/ld-x86-64 -Wl,-z,now tmpdir/tls-main1.o tmpdir/libtls-1a.so tmpdir/libtls-1bn.so -Wl,-R,tmpdir tmpdir/dummy.o 2>&1} /dev/null ld.tmp (timeout = 300)
spawn [open ...]
tmpdir/libtls-1bn.so: undefined reference to `gd'
collect2: error: ld returned 1 exit status
tmpdir/libtls-1bn.so: undefined reference to `gd'
collect2: error: ld returned 1 exit status
FAIL: TLS without PLT (3)
gcc (Ubuntu 4.9.4-2ubuntu1~16.04) 4.9.4
--
Alan Modra
Australia Development Lab, IBM
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-02 22:28 ` Alan Modra
@ 2017-05-02 23:03 ` H.J. Lu
2017-05-03 7:45 ` Alan Modra
0 siblings, 1 reply; 8+ messages in thread
From: H.J. Lu @ 2017-05-02 23:03 UTC (permalink / raw)
To: Alan Modra; +Cc: Binutils
[-- Attachment #1: Type: text/plain, Size: 1035 bytes --]
On Tue, May 2, 2017 at 3:28 PM, Alan Modra <amodra@gmail.com> wrote:
> On Tue, May 02, 2017 at 01:57:49PM -0700, H.J. Lu wrote:
>> I checked in a test for this.
>
> Thanks. Incidentally, on my x86_64-linux box I've been seeing
>
> Executing on host: sh -c {gcc -B/home/alan/build/gas/all/ld/tmpdir/ld/ -L/usr/local/x86_64-linux/lib64 -L/usr/local/lib64 -L/lib64 -L/usr/lib64 -L/usr/local/x86_64-linux/lib -L/usr/local/lib -L/lib -L/usr/lib -o tmpdir/tls-1en -L/home/alan/src/binutils-gdb/ld/testsuite/ld-x86-64 -Wl,-z,now tmpdir/tls-main1.o tmpdir/libtls-1a.so tmpdir/libtls-1bn.so -Wl,-R,tmpdir tmpdir/dummy.o 2>&1} /dev/null ld.tmp (timeout = 300)
> spawn [open ...]
> tmpdir/libtls-1bn.so: undefined reference to `gd'
> collect2: error: ld returned 1 exit status
> tmpdir/libtls-1bn.so: undefined reference to `gd'
> collect2: error: ld returned 1 exit status
> FAIL: TLS without PLT (3)
>
> gcc (Ubuntu 4.9.4-2ubuntu1~16.04) 4.9.4
>
I checked in this patch. Please give it a try.
Thanks.
--
H.J.
[-- Attachment #2: 0001-x86-Add-Wl-no-as-needed-to-some-TLS-tests.patch --]
[-- Type: text/x-patch, Size: 2255 bytes --]
From 3d8505928a06e00b05bb162c1ad0dd612c1c16af Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Tue, 2 May 2017 16:00:49 -0700
Subject: [PATCH] x86: Add -Wl,--no-as-needed to some TLS tests
* testsuite/ld-i386/tls.exp: Add -Wl,--no-as-needed to
"TLS without PLT (1)" and "TLS without PLT (3)".
* testsuite/ld-x86-64/tls.exp: Add -Wl,--no-as-needed to
to "TLS without PLT (3)".
---
ld/ChangeLog | 7 +++++++
ld/testsuite/ld-i386/tls.exp | 4 ++--
ld/testsuite/ld-x86-64/tls.exp | 2 +-
3 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 4fc4e1d..ff52608 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,12 @@
2017-05-02 H.J. Lu <hongjiu.lu@intel.com>
+ * testsuite/ld-i386/tls.exp: Add -Wl,--no-as-needed to
+ "TLS without PLT (1)" and "TLS without PLT (3)".
+ * testsuite/ld-x86-64/tls.exp: Add -Wl,--no-as-needed to
+ to "TLS without PLT (3)".
+
+2017-05-02 H.J. Lu <hongjiu.lu@intel.com>
+
PR ld/21384
* testsuite/ld-elf/pr21384.d: New file.
* testsuite/ld-elf/pr21384.dl: Likewise.
diff --git a/ld/testsuite/ld-i386/tls.exp b/ld/testsuite/ld-i386/tls.exp
index 7a99e46..5fd42bc 100644
--- a/ld/testsuite/ld-i386/tls.exp
+++ b/ld/testsuite/ld-i386/tls.exp
@@ -141,7 +141,7 @@ run_ld_link_exec_tests [list \
] \
[list \
"TLS without PLT (1)" \
- "tmpdir/tls-main1.o \
+ "-Wl,--no-as-needed tmpdir/tls-main1.o \
tmpdir/libtls-1a.so tmpdir/libtls-1b.so -Wl,-R,tmpdir" \
"" \
{ dummy.s } \
@@ -159,7 +159,7 @@ run_ld_link_exec_tests [list \
] \
[list \
"TLS without PLT (3)" \
- "-Wl,-z,now tmpdir/tls-main1.o \
+ "-Wl,--no-as-needed -Wl,-z,now tmpdir/tls-main1.o \
tmpdir/libtls-1a.so tmpdir/libtls-1bn.so -Wl,-R,tmpdir" \
"" \
{ dummy.s } \
diff --git a/ld/testsuite/ld-x86-64/tls.exp b/ld/testsuite/ld-x86-64/tls.exp
index 5282146..4263d95 100644
--- a/ld/testsuite/ld-x86-64/tls.exp
+++ b/ld/testsuite/ld-x86-64/tls.exp
@@ -159,7 +159,7 @@ run_ld_link_exec_tests [list \
] \
[list \
"TLS without PLT (3)" \
- "-Wl,-z,now tmpdir/tls-main1.o \
+ "-Wl,--no-as-needed -Wl,-z,now tmpdir/tls-main1.o \
tmpdir/libtls-1a.so tmpdir/libtls-1bn.so -Wl,-R,tmpdir" \
"" \
{ dummy.s } \
--
2.9.3
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-02 23:03 ` H.J. Lu
@ 2017-05-03 7:45 ` Alan Modra
0 siblings, 0 replies; 8+ messages in thread
From: Alan Modra @ 2017-05-03 7:45 UTC (permalink / raw)
To: H.J. Lu; +Cc: Binutils
On Tue, May 02, 2017 at 04:03:01PM -0700, H.J. Lu wrote:
> On Tue, May 2, 2017 at 3:28 PM, Alan Modra <amodra@gmail.com> wrote:
> > FAIL: TLS without PLT (3)
> >
> > gcc (Ubuntu 4.9.4-2ubuntu1~16.04) 4.9.4
>
> I checked in this patch. Please give it a try.
Thanks, that fixed it.
--
Alan Modra
Australia Development Lab, IBM
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-02 20:57 ` H.J. Lu
2017-05-02 22:28 ` Alan Modra
@ 2017-05-03 13:44 ` Maciej W. Rozycki
2017-05-03 14:46 ` H.J. Lu
1 sibling, 1 reply; 8+ messages in thread
From: Maciej W. Rozycki @ 2017-05-03 13:44 UTC (permalink / raw)
To: H.J. Lu; +Cc: Alan Modra, Binutils
On Tue, 2 May 2017, H.J. Lu wrote:
> I checked in a test for this.
Which fails for MIPS targets -- did you regression-test it properly
before committing?
Maciej
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-03 13:44 ` Maciej W. Rozycki
@ 2017-05-03 14:46 ` H.J. Lu
2017-05-03 21:22 ` Maciej W. Rozycki
0 siblings, 1 reply; 8+ messages in thread
From: H.J. Lu @ 2017-05-03 14:46 UTC (permalink / raw)
To: Maciej W. Rozycki; +Cc: Alan Modra, Binutils
[-- Attachment #1: Type: text/plain, Size: 355 bytes --]
On Wed, May 3, 2017 at 6:44 AM, Maciej W. Rozycki <macro@imgtec.com> wrote:
> On Tue, 2 May 2017, H.J. Lu wrote:
>
>> I checked in a test for this.
>
> Which fails for MIPS targets -- did you regression-test it properly
> before committing?
>
Sorry for the noise. I checked in this to accommodate additional
dynamic symbols on some targets.
--
H.J.
[-- Attachment #2: 0001-Adjust-testsuite-ld-elf-pr21384.d.patch --]
[-- Type: text/x-patch, Size: 1347 bytes --]
From b22908217d8593185af3f76fab6f0f01457b0600 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 3 May 2017 07:40:51 -0700
Subject: [PATCH] Adjust testsuite/ld-elf/pr21384.d
Adjust testsuite/ld-elf/pr21384.d to accommodate additional dynamic
symbols on some targets.
* testsuite/ld-elf/pr21384.d: Adjusted to accommodate
additional dynamic symbols on some targets.
---
ld/ChangeLog | 5 +++++
ld/testsuite/ld-elf/pr21384.d | 1 +
2 files changed, 6 insertions(+)
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 92af8b9..16133b8 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,8 @@
+2017-05-03 H.J. Lu <hongjiu.lu@intel.com>
+
+ * testsuite/ld-elf/pr21384.d: Adjusted to accommodate
+ additional dynamic symbols on some targets.
+
2017-05-02 Maciej W. Rozycki <macro@imgtec.com>
* testsuite/ld-mips-elf/mips16-branch-absolute-1.d: New test.
diff --git a/ld/testsuite/ld-elf/pr21384.d b/ld/testsuite/ld-elf/pr21384.d
index 5a3aedc..5f17aaf 100644
--- a/ld/testsuite/ld-elf/pr21384.d
+++ b/ld/testsuite/ld-elf/pr21384.d
@@ -7,5 +7,6 @@ Symbol table '\.dynsym' contains [0-9]+ entries:
+0: 0+ +0 +NOTYPE +LOCAL +DEFAULT +UND +
#...
+[0-9]+: +[a-f0-9]+ +0 +NOTYPE +GLOBAL +DEFAULT +[0-9]+ +edata
+#...
+[0-9]+: +[a-f0-9]+ +0 +NOTYPE +GLOBAL +DEFAULT +[0-9]+ +fdata
#pass
--
2.9.3
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: PR 21384, --dynamic-list regression with f02cb058
2017-05-03 14:46 ` H.J. Lu
@ 2017-05-03 21:22 ` Maciej W. Rozycki
0 siblings, 0 replies; 8+ messages in thread
From: Maciej W. Rozycki @ 2017-05-03 21:22 UTC (permalink / raw)
To: H.J. Lu; +Cc: Alan Modra, Binutils
On Wed, 3 May 2017, H.J. Lu wrote:
> > Which fails for MIPS targets -- did you regression-test it properly
> > before committing?
>
> Sorry for the noise. I checked in this to accommodate additional
> dynamic symbols on some targets.
Thanks!
Maciej
^ permalink raw reply [flat|nested] 8+ messages in thread
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Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2017-05-02 15:22 PR 21384, --dynamic-list regression with f02cb058 Alan Modra
2017-05-02 20:57 ` H.J. Lu
2017-05-02 22:28 ` Alan Modra
2017-05-02 23:03 ` H.J. Lu
2017-05-03 7:45 ` Alan Modra
2017-05-03 13:44 ` Maciej W. Rozycki
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