automatic import of gccopeneuler24.03_LTS_SP1

1 files changed, 44 insertions, 0 deletions

diff --git a/0023-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch b/0023-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch
new file mode 100644
index 0000000..7577a01
--- /dev/null
+++ b/0023-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch
@@ -0,0 +1,44 @@
+From 9dc6d315ba350c9113f486ec897217a82838fb73 Mon Sep 17 00:00:00 2001
+From: Xiong Zhou <xiongzhou4@huawei.com>
+Date: Mon, 7 Aug 2023 14:44:56 +0800
+Subject: [PATCH 1/2] [PGO kernel] Add fkernel-pgo option to support PGO kernel
+ compilation.
+
+---
+ gcc/common.opt      | 4 ++++
+ gcc/tree-profile.cc | 4 +++-
+ 2 files changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index e365a48bc..bd3b7dcb1 100644
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -2363,6 +2363,10 @@ fprofile-generate=
+ Common Joined RejectNegative
+ Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=.
+ 
++fkernel-pgo
++Common 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-info-section
+ Common RejectNegative
+ Register the profile information in the .gcov_info section instead of using a constructor/destructor.
+diff --git a/gcc/tree-profile.cc b/gcc/tree-profile.cc
+index 6d40401f8..e7646f1a1 100644
+--- a/gcc/tree-profile.cc
++++ b/gcc/tree-profile.cc
+@@ -108,7 +108,9 @@ 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
+