!307 [sync] PR-290: [Sync] Add PGO kernel option to support PGO kernel

From: @openeuler-sync-bot 
Reviewed-by: @li-yancheng 
Signed-off-by: @li-yancheng

0100-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch

@@ -0,0 +1,46 @@
+From 90d3ef0637c66045eeab78ccf04e9ff51b9b451a Mon Sep 17 00:00:00 2001
+From: xiongzhou4 <xiongzhou4@huawei.com>
+Date: Thu, 1 Jun 2023 09:28:27 +0800
+Subject: [PATCH 5/5] [PGO kernel] Add fkernel-pgo option to support PGO kernel
+ compilation.
+
+If specified, disable TLS setting of instrumentation variables in
+gcc/tree-profile.c, as kernel does not support TLS.
+---
+ gcc/common.opt     | 4 ++++
+ gcc/tree-profile.c | 4 +++-
+ 2 files changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 238c97db8..6f0ed7cea 100644
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -2302,6 +2302,10 @@ fprofile-generate=
+ Common Joined RejectNegative
+ Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=.
+ 
++fkernel-pgo
++Common Report Var(flag_kernel_pgo) Optimization Init(0)
++Disable TLS setting of instrumentation variables to support PGO kernel compilation in -fprofile-generate, as kernel does not support TLS.
++
+ fprofile-partial-training
+ Common Report Var(flag_profile_partial_training) Optimization
+ Do not assume that functions never executed during the train run are cold.
+diff --git a/gcc/tree-profile.c b/gcc/tree-profile.c
+index 6c0838261..924817472 100644
+--- a/gcc/tree-profile.c
++++ b/gcc/tree-profile.c
+@@ -105,7 +105,9 @@ init_ic_make_global_vars (void)
+   DECL_ARTIFICIAL (ic_tuple_var) = 1;
+   DECL_INITIAL (ic_tuple_var) = NULL;
+   DECL_EXTERNAL (ic_tuple_var) = 1;
+-  if (targetm.have_tls)
++  /* Disable TLS setting when compiling kernel in -fprofile-generate,
++     as kernel does not support TLS. */
++  if (targetm.have_tls && !flag_kernel_pgo)
+     set_decl_tls_model (ic_tuple_var, decl_default_tls_model (ic_tuple_var));
+ }
+ 
+-- 
+2.33.0
+

gcc.spec

@@ -61,7 +61,7 @@
 Summary: Various compilers (C, C++, Objective-C, ...)
 Name: gcc
 Version: %{gcc_version}
-Release: 33
+Release: 34
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ with exceptions and LGPLv2+ and BSD
 URL: https://gcc.gnu.org
 
@@ -208,6 +208,7 @@ Patch96: 0096-libquadmath-Revert-Enable-libquadmath-on-kunpeng.patch
 Patch97: 0097-libquadmath-refactor-Enable-libquadmath-on-kunpeng.patch
 Patch98: 0098-AArch64-Rewrite-the-tsv110-option.patch
 Patch99: 0099-Struct-Reorg-Add-escape-propagate-on-external-functi.patch
+Patch100: 0100-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch
 
 %global gcc_target_platform %{_arch}-linux-gnu
 
@@ -761,6 +762,7 @@ not stable, so plugins must be rebuilt any time GCC is updated.
 %patch97 -p1
 %patch98 -p1
 %patch99 -p1
+%patch100 -p1
 
 %build
 
@@ -2785,6 +2787,12 @@ end
 %doc rpm.doc/changelogs/libcc1/ChangeLog*
 
 %changelog
+* Fri Jun 9 2023 Wang Ding <wangding16@huawei.com> - 10.3.1-34
+- Type:Sync
+- ID:NA
+- SUG:NA
+- DESC:Add PGO kernel option to support PGO kernel
+
 * Fri Jun 9 2023 huangxiaoquan <huangxiaoquan1@huawei.com> - 10.3.1-33
 - Type:Sync
 - ID:NA