On Sat, Aug 13, 2022 at 2:39 PM Martin Jansa <martin.jansa@gmail.com> wrote:

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
...lement-a-useful-version-of-_startup_.patch | 128 ------------------
.../glibc/glibc/0025-startup-Force-O2.patch | 28 ++++
meta/recipes-core/glibc/glibc_2.36.bb | 2 +-
3 files changed, 29 insertions(+), 129 deletions(-)
delete mode 100644 meta/recipes-core/glibc/glibc/0025-Revert-Linux-Implement-a-useful-version-of-_startup_.patch
create mode 100644 meta/recipes-core/glibc/glibc/0025-startup-Force-O2.patch

diff --git a/meta/recipes-core/glibc/glibc/0025-Revert-Linux-Implement-a-useful-version-of-_startup_.patch b/meta/recipes-core/glibc/glibc/0025-Revert-Linux-Implement-a-useful-version-of-_startup_.patch
deleted file mode 100644
index 1982598339..0000000000
--- a/meta/recipes-core/glibc/glibc/0025-Revert-Linux-Implement-a-useful-version-of-_startup_.patch
+++ /dev/null
@@ -1,128 +0,0 @@
-From 18b04419d5984f5c6c89fab5e72fcdd1942491cb Mon Sep 17 00:00:00 2001
-From: Martin Jansa <Martin.Jansa@gmail.com>
-Date: Sun, 7 Aug 2022 12:51:48 +0200
-Subject: [PATCH] Revert "Linux: Implement a useful version of _startup_fatal"
-
-This reverts commit a2a6bce7d7e52c1c34369a7da62c501cc350bc31.
-
-Upstream-Status: Inappropriate [temporary work around]
-
-Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
----
- sysdeps/unix/sysv/linux/i386/startup.h | 23 ++++++++++++---
- sysdeps/unix/sysv/linux/ia64/startup.h | 22 ---------------
- sysdeps/unix/sysv/linux/startup.h | 39 --------------------------
- 3 files changed, 19 insertions(+), 65 deletions(-)
- delete mode 100644 sysdeps/unix/sysv/linux/ia64/startup.h
- delete mode 100644 sysdeps/unix/sysv/linux/startup.h
-
-diff --git a/sysdeps/unix/sysv/linux/i386/startup.h b/sysdeps/unix/sysv/linux/i386/startup.h
-index 213805d7d2..67c9310f3a 100644
---- a/sysdeps/unix/sysv/linux/i386/startup.h
-+++ b/sysdeps/unix/sysv/linux/i386/startup.h
-@@ -1,5 +1,5 @@
- /* Linux/i386 definitions of functions used by static libc main startup.
-- Copyright (C) 2022 Free Software Foundation, Inc.
-+ Copyright (C) 2017-2022 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
-@@ -16,7 +16,22 @@
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
-
--/* Can't use "call *%gs:SYSINFO_OFFSET" during startup. */
--#define I386_USE_SYSENTER 0
-+#if BUILD_PIE_DEFAULT
-+/* Can't use "call *%gs:SYSINFO_OFFSET" during statup in static PIE. */
-+# define I386_USE_SYSENTER 0
-
--#include_next <startup.h>
-+# include <sysdep.h>
-+# include <abort-instr.h>
-+
-+__attribute__ ((__noreturn__))
-+static inline void
-+_startup_fatal (const char *message __attribute__ ((unused)))
-+{
-+ /* This is only called very early during startup in static PIE.
-+ FIXME: How can it be improved? */
-+ ABORT_INSTRUCTION;
-+ __builtin_unreachable ();
-+}
-+#else
-+# include_next <startup.h>
-+#endif
-diff --git a/sysdeps/unix/sysv/linux/ia64/startup.h b/sysdeps/unix/sysv/linux/ia64/startup.h
-deleted file mode 100644
-index 77f29f15a2..0000000000
---- a/sysdeps/unix/sysv/linux/ia64/startup.h
-+++ /dev/null
-@@ -1,22 +0,0 @@
--/* Linux/ia64 definitions of functions used by static libc main startup.
-- Copyright (C) 2022 Free Software Foundation, Inc.
-- This file is part of the GNU C Library.
--
-- The GNU C Library is free software; you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public
-- License as published by the Free Software Foundation; either
-- version 2.1 of the License, or (at your option) any later version.
--
-- The GNU C Library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with the GNU C Library; if not, see
-- <https://www.gnu.org/licenses/>. */
--
--/* This code is used before the TCB is set up. */
--#define IA64_USE_NEW_STUB 0
--
--#include_next <startup.h>
-diff --git a/sysdeps/unix/sysv/linux/startup.h b/sysdeps/unix/sysv/linux/startup.h
-deleted file mode 100644
-index 39859b404a..0000000000
---- a/sysdeps/unix/sysv/linux/startup.h
-+++ /dev/null
-@@ -1,39 +0,0 @@
--/* Linux definitions of functions used by static libc main startup.
-- Copyright (C) 2017-2022 Free Software Foundation, Inc.
-- This file is part of the GNU C Library.
--
-- The GNU C Library is free software; you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public
-- License as published by the Free Software Foundation; either
-- version 2.1 of the License, or (at your option) any later version.
--
-- The GNU C Library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with the GNU C Library; if not, see
-- <https://www.gnu.org/licenses/>. */
--
--#ifdef SHARED
--# include_next <startup.h>
--#else
--# include <sysdep.h>
--
--/* Avoid a run-time invocation of strlen. */
--#define _startup_fatal(message) \
-- do \
-- { \
-- size_t __message_length = __builtin_strlen (message); \
-- if (! __builtin_constant_p (__message_length)) \
-- { \
-- extern void _startup_fatal_not_constant (void); \
-- _startup_fatal_not_constant (); \
-- } \
-- INTERNAL_SYSCALL_CALL (write, STDERR_FILENO, (message), \
-- __message_length); \
-- INTERNAL_SYSCALL_CALL (exit_group, 127); \
-- } \
-- while (0)
--#endif /* !SHARED */
diff --git a/meta/recipes-core/glibc/glibc/0025-startup-Force-O2.patch b/meta/recipes-core/glibc/glibc/0025-startup-Force-O2.patch
new file mode 100644
index 0000000000..1f3426295a
--- /dev/null
+++ b/meta/recipes-core/glibc/glibc/0025-startup-Force-O2.patch
@@ -0,0 +1,28 @@
+From 5e635e5dc7d1b21a78f38109d4f43a03bec865c8 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sun, 7 Aug 2022 12:51:48 +0200
+Subject: [PATCH] startup: Force -O2
+
+Upstream-Status: Submitted [https://sourceware.org/bugzilla/show_bug.cgi?id=29249]
+
+Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+---
+ sysdeps/unix/sysv/linux/startup.h | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/sysdeps/unix/sysv/linux/startup.h b/sysdeps/unix/sysv/linux/startup.h
+index 39859b404a..e1fc1b682d 100644
+--- a/sysdeps/unix/sysv/linux/startup.h
++++ b/sysdeps/unix/sysv/linux/startup.h
+@@ -21,6 +21,11 @@
+ #else
+ # include <sysdep.h>
+
++# if !defined __OPTIMIZE__ || __OPTIMIZE__ < 2
++/* Force to fold strlen. */
++# pragma GCC optimize(2)
++# endif
++
+ /* Avoid a run-time invocation of strlen. */
+ #define _startup_fatal(message) \
+ do \
diff --git a/meta/recipes-core/glibc/glibc_2.36.bb b/meta/recipes-core/glibc/glibc_2.36.bb
index 6ccb392f09..1cfa8101ef 100644
--- a/meta/recipes-core/glibc/glibc_2.36.bb
+++ b/meta/recipes-core/glibc/glibc_2.36.bb
@@ -50,7 +50,7 @@ SRC_URI = "${GLIBC_GIT_URI};branch=${SRCBRANCH};name=glibc \
file://0022-tzselect.ksh-Use-bin-sh-default-shell-interpreter.patch \
file://0023-fix-create-thread-failed-in-unprivileged-process-BZ-.patch \
file://0024-Avoid-hardcoded-build-time-paths-in-the-output-binar.patch \
- file://0025-Revert-Linux-Implement-a-useful-version-of-_startup_.patch \
+ file://0025-startup-Force-O2.patch \
"
S = "${WORKDIR}/git"
B = "${WORKDIR}/build-${TARGET_SYS}"
--
2.37.2