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Merge pull request bottlerocket-os#3456 from yeazelm/glibc_update
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glibc: update with latest patches for 2.38
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yeazelm authored Sep 14, 2023
2 parents 1dac592 + f52cfbf commit 03af740
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Original file line number Diff line number Diff line change
@@ -0,0 +1,91 @@
From 5bdef6f27c91f45505ed5444147be4ed0e9bc3c7 Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <[email protected]>
Date: Mon, 28 Aug 2023 23:30:37 +0200
Subject: [PATCH] io: Fix record locking contants for powerpc64 with
__USE_FILE_OFFSET64

Commit 5f828ff824e3b7cd1 ("io: Fix F_GETLK, F_SETLK, and F_SETLKW for
powerpc64") fixed an issue with the value of the lock constants on
powerpc64 when not using __USE_FILE_OFFSET64, but it ended-up also
changing the value when using __USE_FILE_OFFSET64 causing an API change.

Fix that by also checking that define, restoring the pre
4d0fe291aed3a476a commit values:

Default values:
- F_GETLK: 5
- F_SETLK: 6
- F_SETLKW: 7

With -D_FILE_OFFSET_BITS=64:
- F_GETLK: 12
- F_SETLK: 13
- F_SETLKW: 14

At the same time, it has been noticed that there was no test for io lock
with __USE_FILE_OFFSET64, so just add one.

Tested on x86_64-linux-gnu, i686-linux-gnu and
powerpc64le-unknown-linux-gnu.

Resolves: BZ #30804.
Co-authored-by: Adhemerval Zanella <[email protected]>
Signed-off-by: Aurelien Jarno <[email protected]>
(cherry picked from commit 434bf72a94de68f0cc7fbf3c44bf38c1911b70cb)
---
NEWS | 2 ++
io/Makefile | 1 +
io/tst-fcntl-lock-lfs.c | 2 ++
sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h | 2 +-
4 files changed, 6 insertions(+), 1 deletion(-)
create mode 100644 io/tst-fcntl-lock-lfs.c

diff --git a/NEWS b/NEWS
index c339cb444e..8156572cdf 100644
--- a/NEWS
+++ b/NEWS
@@ -133,6 +133,8 @@ The following bugs are resolved with this release:
[30579] malloc: trim_threshold in realloc lead to high memory usage
[30662] nscd: Group and password cache use errno in place of errval
[30723] posix_memalign repeatedly scans long bin lists
+ [30804] F_GETLK, F_SETLK, and F_SETLKW value change for powerpc64 with
+ -D_FILE_OFFSET_BITS=64

Version 2.37

diff --git a/io/Makefile b/io/Makefile
index 6ccc0e8691..8a3c83a3bb 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -192,6 +192,7 @@ tests := \
tst-fchownat \
tst-fcntl \
tst-fcntl-lock \
+ tst-fcntl-lock-lfs \
tst-fstatat \
tst-fts \
tst-fts-lfs \
diff --git a/io/tst-fcntl-lock-lfs.c b/io/tst-fcntl-lock-lfs.c
new file mode 100644
index 0000000000..f2a909fb02
--- /dev/null
+++ b/io/tst-fcntl-lock-lfs.c
@@ -0,0 +1,2 @@
+#define _FILE_OFFSET_BITS 64
+#include <io/tst-fcntl-lock.c>
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
index f7615a447e..d8a291a331 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
@@ -33,7 +33,7 @@
# define __O_LARGEFILE 0200000
#endif

-#if __WORDSIZE == 64
+#if __WORDSIZE == 64 && !defined __USE_FILE_OFFSET64
# define F_GETLK 5
# define F_SETLK 6
# define F_SETLKW 7
--
2.41.0

51 changes: 51 additions & 0 deletions packages/glibc/0013-libio-Fix-oversized-__io_vtables.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,51 @@
From 92201f16cbcfd9eafe314ef6654be2ea7ba25675 Mon Sep 17 00:00:00 2001
From: Adam Jackson <[email protected]>
Date: Fri, 8 Sep 2023 15:55:19 -0400
Subject: [PATCH] libio: Fix oversized __io_vtables

IO_VTABLES_LEN is the size of the struct array in bytes, not the number
of __IO_jump_t's in the array. Drops just under 384kb from .rodata on
LP64 machines.

Fixes: 3020f72618e ("libio: Remove the usage of __libc_IO_vtables")
Signed-off-by: Adam Jackson <[email protected]>
Reviewed-by: Florian Weimer <[email protected]>
Tested-by: Florian Weimer <[email protected]>
(cherry picked from commit 8cb69e054386f980f9ff4d93b157861d72b2019e)
---
libio/vtables.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libio/vtables.c b/libio/vtables.c
index 1d8ad612e9..34f7e15f1c 100644
--- a/libio/vtables.c
+++ b/libio/vtables.c
@@ -20,6 +20,7 @@
#include <libioP.h>
#include <stdio.h>
#include <ldsodefs.h>
+#include <array_length.h>
#include <pointer_guard.h>
#include <libio-macros.h>

@@ -88,7 +89,7 @@
# pragma weak __wprintf_buffer_as_file_xsputn
#endif

-const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro =
+const struct _IO_jump_t __io_vtables[] attribute_relro =
{
/* _IO_str_jumps */
[IO_STR_JUMPS] =
@@ -485,6 +486,8 @@ const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro =
},
#endif
};
+_Static_assert (array_length (__io_vtables) == IO_VTABLES_NUM,
+ "initializer count");

#ifdef SHARED

--
2.41.0

Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
From 7ae211a01b085d0bde54bd13b887ce8f9d57c2b4 Mon Sep 17 00:00:00 2001
From: Florian Weimer <[email protected]>
Date: Tue, 22 Aug 2023 13:56:25 +0200
Subject: [PATCH] elf: Do not run constructors for proxy objects

Otherwise, the ld.so constructor runs for each audit namespace
and each dlmopen namespace.

(cherry picked from commit f6c8204fd7fabf0cf4162eaf10ccf23258e4d10e)
---
elf/dl-init.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/elf/dl-init.c b/elf/dl-init.c
index 5b0732590f..ba4d2fdc85 100644
--- a/elf/dl-init.c
+++ b/elf/dl-init.c
@@ -25,10 +25,14 @@
static void
call_init (struct link_map *l, int argc, char **argv, char **env)
{
+ /* Do not run constructors for proxy objects. */
+ if (l != l->l_real)
+ return;
+
/* If the object has not been relocated, this is a bug. The
function pointers are invalid in this case. (Executables do not
- need relocation, and neither do proxy objects.) */
- assert (l->l_real->l_relocated || l->l_real->l_type == lt_executable);
+ need relocation.) */
+ assert (l->l_relocated || l->l_type == lt_executable);

if (l->l_init_called)
/* This object is all done. */
--
2.41.0

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