From 73127104a245052cd5cf29cdaaca3e5c32c70348 Mon Sep 17 00:00:00 2001 From: CoprDistGit Date: Fri, 28 Feb 2025 10:03:49 +0000 Subject: automatic import of gcc --- ...Add-fkernel-pgo-option-to-support-PGO-ker.patch | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 0023-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch (limited to '0023-PGO-kernel-Add-fkernel-pgo-option-to-support-PGO-ker.patch') 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 +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 + -- cgit v1.2.3