[core-updates-frozen] Bug in binutils 1.37

[Guillaume Le Vaillant <glv@posteo.net>]

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Hi,

There's a bug in binutils 1.37, which we are using on the
core-updates-frozen branch.

It's a file descriptor leak that can lead to 'malformed archive' errors
when linking libraries. We get this problem at least when building
qtwekbit and qtwebengine. A workaround allows us to compile qtwebkit
(see [1]), but it doesn't work for qtwebengine.

The bug was discussed at [2] and upstream has a patch to fix it at [3].
However, adding this patch to our binutils rebuilds the world.
I'm currently trying to build things with the patched binutils.
If everything works, should I push this fix on core-updates-frozen, or
does someone have an idea that would lead to less rebuilds?

P.S.: The patch I'm trying is in attachment.

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From d90e95640f0c2bd3271e370516e51fac56929be7 Mon Sep 17 00:00:00 2001
From: Guillaume Le Vaillant <glv@posteo.net>
Date: Mon, 6 Sep 2021 17:32:38 +0200
Subject: [PATCH] gnu: binutils: Fix file decriptor leak.

* gnu/packages/patches/binutils-1.37-file-descriptor-leak.patch: New file.
* gnu/packages/local.mk (dist_patch_DATA): Add it.
* gnu/packages/base.scm (binutils)[source]: Use it.
---
 gnu/local.mk                                  |   1 +
 gnu/packages/base.scm                         |  17 +-
 .../binutils-1.37-file-descriptor-leak.patch  | 231 ++++++++++++++++++
 3 files changed, 241 insertions(+), 8 deletions(-)
 create mode 100644 gnu/packages/patches/binutils-1.37-file-descriptor-leak.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 8c41b5b676..5814587ef2 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -884,6 +884,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/behave-skip-a-couple-of-tests.patch	\
   %D%/packages/patches/beignet-correct-file-names.patch		\
   %D%/packages/patches/bidiv-update-fribidi.patch		\
+  %D%/packages/patches/binutils-1.37-file-descriptor-leak.patch	\
   %D%/packages/patches/binutils-boot-2.20.1a.patch		\
   %D%/packages/patches/binutils-loongson-workaround.patch	\
   %D%/packages/patches/binutils-mingw-w64-timestamp.patch	\
diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index b9841a5cef..f5486c6aae 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -510,14 +510,15 @@ change.  GNU make offers many powerful extensions over the standard utility.")
   (package
    (name "binutils")
    (version "2.37")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnu/binutils/binutils-"
-                                version ".tar.bz2"))
-            (sha256
-             (base32
-              "1m3b2rdfv1dmdpd0bzg1hy7i8a2qng53szc6livyi3nh6101mz37"))
-            (patches (search-patches "binutils-loongson-workaround.patch"))))
+   (source
+    (origin
+      (method url-fetch)
+      (uri (string-append "mirror://gnu/binutils/binutils-"
+                          version ".tar.bz2"))
+      (sha256
+       (base32 "1m3b2rdfv1dmdpd0bzg1hy7i8a2qng53szc6livyi3nh6101mz37"))
+      (patches (search-patches "binutils-loongson-workaround.patch"
+                               "binutils-1.37-file-descriptor-leak.patch"))))
    (build-system gnu-build-system)
 
    ;; TODO: Add dependency on zlib + those for Gold.
diff --git a/gnu/packages/patches/binutils-1.37-file-descriptor-leak.patch b/gnu/packages/patches/binutils-1.37-file-descriptor-leak.patch
new file mode 100644
index 0000000000..1fd3d3d9b7
--- /dev/null
+++ b/gnu/packages/patches/binutils-1.37-file-descriptor-leak.patch
@@ -0,0 +1,231 @@
+From 1c611b40e6bfc8029bff7696814330b5bc0ee5c0 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Mon, 26 Jul 2021 05:59:55 -0700
+Subject: [PATCH] bfd: Close the file descriptor if there is no archive fd
+
+Close the file descriptor if there is no archive plugin file descriptor
+to avoid running out of file descriptors on thin archives with many
+archive members.
+
+bfd/
+
+	PR ld/28138
+	* plugin.c (bfd_plugin_close_file_descriptor): Close the file
+	descriptor there is no archive plugin file descriptor.
+
+ld/
+
+	PR ld/28138
+	* testsuite/ld-plugin/lto.exp: Run tmpdir/pr28138 only for
+	native build.
+
+	PR ld/28138
+	* testsuite/ld-plugin/lto.exp: Run ld/28138 tests.
+	* testsuite/ld-plugin/pr28138.c: New file.
+	* testsuite/ld-plugin/pr28138-1.c: Likewise.
+	* testsuite/ld-plugin/pr28138-2.c: Likewise.
+	* testsuite/ld-plugin/pr28138-3.c: Likewise.
+	* testsuite/ld-plugin/pr28138-4.c: Likewise.
+	* testsuite/ld-plugin/pr28138-5.c: Likewise.
+	* testsuite/ld-plugin/pr28138-6.c: Likewise.
+	* testsuite/ld-plugin/pr28138-7.c: Likewise.
+
+(cherry picked from commit 5a98fb7513b559e20dfebdbaa2a471afda3b4742)
+(cherry picked from commit 7dc37e1e1209c80e0bab784df6b6bac335e836f2)
+---
+ bfd/plugin.c                       |  8 +++++++
+ ld/testsuite/ld-plugin/lto.exp     | 34 ++++++++++++++++++++++++++++++
+ ld/testsuite/ld-plugin/pr28138-1.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138-2.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138-3.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138-4.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138-5.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138-6.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138-7.c |  6 ++++++
+ ld/testsuite/ld-plugin/pr28138.c   | 20 ++++++++++++++++++
+ 10 files changed, 104 insertions(+)
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-1.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-2.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-3.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-4.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-5.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-6.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138-7.c
+ create mode 100644 ld/testsuite/ld-plugin/pr28138.c
+
+diff --git a/bfd/plugin.c b/bfd/plugin.c
+index 6cfa2b66470..3bab8febe88 100644
+--- a/bfd/plugin.c
++++ b/bfd/plugin.c
+@@ -291,6 +291,14 @@ bfd_plugin_close_file_descriptor (bfd *abfd, int fd)
+ 	     && !bfd_is_thin_archive (abfd->my_archive))
+ 	abfd = abfd->my_archive;
+ 
++      /* Close the file descriptor if there is no archive plugin file
++	 descriptor.  */
++      if (abfd->archive_plugin_fd == -1)
++	{
++	  close (fd);
++	  return;
++	}
++
+       abfd->archive_plugin_fd_open_count--;
+       /* Dup the archive plugin file descriptor for later use, which
+ 	 will be closed by _bfd_archive_close_and_cleanup.  */
+diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
+index def69e43ab3..999d911ce6a 100644
+--- a/ld/testsuite/ld-plugin/lto.exp
++++ b/ld/testsuite/ld-plugin/lto.exp
+@@ -687,6 +687,40 @@ if { [is_elf_format] && [check_lto_shared_available] } {
+     }
+ }
+ 
++run_cc_link_tests [list \
++    [list \
++	"Build pr28138.a" \
++	"-T" "" \
++	{pr28138-1.c pr28138-2.c pr28138-3.c pr28138-4.c pr28138-5.c \
++	 pr28138-6.c pr28138-7.c} {} "pr28138.a" \
++    ] \
++    [list \
++	"Build pr28138.o" \
++	"" "" \
++	{pr28138.c} {} \
++    ] \
++]
++
++set exec_output [run_host_cmd "sh" \
++			      "-c \"ulimit -n 20; \
++			      $CC -Btmpdir/ld -o tmpdir/pr28138 \
++			      tmpdir/pr28138.o tmpdir/pr28138.a\""]
++set exec_output [prune_warnings $exec_output]
++if [string match "" $exec_output] then {
++    if { [isnative] } {
++	set exec_output [run_host_cmd "tmpdir/pr28138" ""]
++	if [string match "PASS" $exec_output] then {
++	    pass "PR ld/28138"
++	} else {
++	    fail "PR ld/28138"
++	}
++    } else {
++	pass "PR ld/28138"
++    }
++} else {
++    fail "PR ld/28138"
++}
++
+ set testname "Build liblto-11.a"
+ remote_file host delete "tmpdir/liblto-11.a"
+ set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
+diff --git a/ld/testsuite/ld-plugin/pr28138-1.c b/ld/testsuite/ld-plugin/pr28138-1.c
+new file mode 100644
+index 00000000000..51d119e1642
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-1.c
+@@ -0,0 +1,6 @@
++extern int a0(void);
++int
++a1(void)
++{
++  return 1 + a0();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138-2.c b/ld/testsuite/ld-plugin/pr28138-2.c
+new file mode 100644
+index 00000000000..1120cd797e9
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-2.c
+@@ -0,0 +1,6 @@
++extern int a1(void);
++int
++a2(void)
++{
++  return 1 + a1();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138-3.c b/ld/testsuite/ld-plugin/pr28138-3.c
+new file mode 100644
+index 00000000000..ec464947ee6
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-3.c
+@@ -0,0 +1,6 @@
++extern int a2(void);
++int
++a3(void)
++{
++  return 1 + a2();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138-4.c b/ld/testsuite/ld-plugin/pr28138-4.c
+new file mode 100644
+index 00000000000..475701b2c5c
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-4.c
+@@ -0,0 +1,6 @@
++extern int a3(void);
++int
++a4(void)
++{
++  return 1 + a3();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138-5.c b/ld/testsuite/ld-plugin/pr28138-5.c
+new file mode 100644
+index 00000000000..e24f86c363e
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-5.c
+@@ -0,0 +1,6 @@
++extern int a4(void);
++int
++a5(void)
++{
++  return 1 + a4();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138-6.c b/ld/testsuite/ld-plugin/pr28138-6.c
+new file mode 100644
+index 00000000000..b5b938bdb21
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-6.c
+@@ -0,0 +1,6 @@
++extern int a5(void);
++int
++a6(void)
++{
++  return 1 + a5();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138-7.c b/ld/testsuite/ld-plugin/pr28138-7.c
+new file mode 100644
+index 00000000000..4ef75bf0f0c
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138-7.c
+@@ -0,0 +1,6 @@
++extern int a6(void);
++int
++a7(void)
++{
++  return 1 + a6();
++}
+diff --git a/ld/testsuite/ld-plugin/pr28138.c b/ld/testsuite/ld-plugin/pr28138.c
+new file mode 100644
+index 00000000000..68252c9f382
+--- /dev/null
++++ b/ld/testsuite/ld-plugin/pr28138.c
+@@ -0,0 +1,20 @@
++#include <stdio.h>
++
++extern int a7(void);
++
++int
++a0(void)
++{
++  return 0;
++}
++
++int
++main()
++{
++  if (a7() == 7)
++    {
++      printf ("PASS\n");
++      return 0;
++    }
++  return 1;
++}
+-- 
+2.27.0
-- 
2.33.0


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[1] https://issues.guix.gnu.org/50014
[2] https://sourceware.org/bugzilla/show_bug.cgi?id=28138
[3] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=1c611b40e6bfc8029bff7696814330b5bc0ee5c0

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