r321992 - [Driver] Add flag enabling the function stack size section that was added in r319430
Sean Eveson via cfe-commits
cfe-commits at lists.llvm.org
Mon Jan 8 05:42:26 PST 2018
Author: seaneveson
Date: Mon Jan 8 05:42:26 2018
New Revision: 321992
URL: http://llvm.org/viewvc/llvm-project?rev=321992&view=rev
Log:
[Driver] Add flag enabling the function stack size section that was added in r319430
Adds the -fstack-size-section flag to enable the .stack_sizes section. The flag defaults to on for the PS4 triple.
Differential Revision: https://reviews.llvm.org/D40712
Added:
cfe/trunk/test/CodeGen/stack-size-section.c
cfe/trunk/test/Driver/stack-size-section.c
Modified:
cfe/trunk/include/clang/Driver/Options.td
cfe/trunk/include/clang/Frontend/CodeGenOptions.def
cfe/trunk/lib/CodeGen/BackendUtil.cpp
cfe/trunk/lib/Driver/ToolChains/Clang.cpp
cfe/trunk/lib/Frontend/CompilerInvocation.cpp
Modified: cfe/trunk/include/clang/Driver/Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=321992&r1=321991&r2=321992&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Mon Jan 8 05:42:26 2018
@@ -1574,6 +1574,10 @@ def fdata_sections : Flag <["-"], "fdata
Flags<[CC1Option]>, HelpText<"Place each data in its own section (ELF Only)">;
def fno_data_sections : Flag <["-"], "fno-data-sections">, Group<f_Group>,
Flags<[CC1Option]>;
+def fstack_size_section : Flag<["-"], "fstack-size-section">, Group<f_Group>, Flags<[CC1Option]>,
+ HelpText<"Emit section containing metadata on function stack sizes">;
+def fno_stack_size_section : Flag<["-"], "fno-stack-size-section">, Group<f_Group>, Flags<[CC1Option]>,
+ HelpText<"Don't emit section containing metadata on function stack sizes">;
def funique_section_names : Flag <["-"], "funique-section-names">,
Group<f_Group>, Flags<[CC1Option]>,
Modified: cfe/trunk/include/clang/Frontend/CodeGenOptions.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/CodeGenOptions.def?rev=321992&r1=321991&r2=321992&view=diff
==============================================================================
--- cfe/trunk/include/clang/Frontend/CodeGenOptions.def (original)
+++ cfe/trunk/include/clang/Frontend/CodeGenOptions.def Mon Jan 8 05:42:26 2018
@@ -83,6 +83,7 @@ CODEGENOPT(InstrumentFunctionEntryBare ,
CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is
///< enabled.
+CODEGENOPT(StackSizeSection , 1, 0) ///< Set when -fstack-size-section is enabled.
///< Set when -fxray-always-emit-customevents is enabled.
CODEGENOPT(XRayAlwaysEmitCustomEvents , 1, 0)
Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=321992&r1=321991&r2=321992&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Mon Jan 8 05:42:26 2018
@@ -448,6 +448,7 @@ static void initTargetOptions(llvm::Targ
Options.UniqueSectionNames = CodeGenOpts.UniqueSectionNames;
Options.EmulatedTLS = CodeGenOpts.EmulatedTLS;
Options.DebuggerTuning = CodeGenOpts.getDebuggerTuning();
+ Options.EmitStackSizeSection = CodeGenOpts.StackSizeSection;
if (CodeGenOpts.EnableSplitDwarf)
Options.MCOptions.SplitDwarfFile = CodeGenOpts.SplitDwarfFile;
Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=321992&r1=321991&r2=321992&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Mon Jan 8 05:42:26 2018
@@ -3798,6 +3798,10 @@ void Clang::ConstructJob(Compilation &C,
CmdArgs.push_back(A->getValue());
}
+ if (Args.hasFlag(options::OPT_fstack_size_section,
+ options::OPT_fno_stack_size_section, RawTriple.isPS4()))
+ CmdArgs.push_back("-fstack-size-section");
+
CmdArgs.push_back("-ferror-limit");
if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ))
CmdArgs.push_back(A->getValue());
Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=321992&r1=321991&r2=321992&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Jan 8 05:42:26 2018
@@ -682,6 +682,8 @@ static bool ParseCodeGenArgs(CodeGenOpti
OPT_fno_function_sections, false);
Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
OPT_fno_data_sections, false);
+ Opts.StackSizeSection =
+ Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false);
Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
OPT_fno_unique_section_names, true);
Added: cfe/trunk/test/CodeGen/stack-size-section.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/stack-size-section.c?rev=321992&view=auto
==============================================================================
--- cfe/trunk/test/CodeGen/stack-size-section.c (added)
+++ cfe/trunk/test/CodeGen/stack-size-section.c Mon Jan 8 05:42:26 2018
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -triple x86_64-unknown %s -S -o - | FileCheck %s --check-prefix=CHECK-ABSENT
+// CHECK-ABSENT-NOT: section .stack_sizes
+
+// RUN: %clang_cc1 -triple x86_64-unknown -fstack-size-section %s -S -o - | FileCheck %s --check-prefix=CHECK-PRESENT
+// CHECK-PRESENT: section .stack_sizes
+
+int foo() { return 42; }
Added: cfe/trunk/test/Driver/stack-size-section.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/stack-size-section.c?rev=321992&view=auto
==============================================================================
--- cfe/trunk/test/Driver/stack-size-section.c (added)
+++ cfe/trunk/test/Driver/stack-size-section.c Mon Jan 8 05:42:26 2018
@@ -0,0 +1,9 @@
+// RUN: %clang -target x86_64-unknown %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ABSENT
+// RUN: %clang -target x86_64-scei-ps4 -fno-stack-size-section %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-ABSENT
+// CHECK-ABSENT-NOT: -fstack-size-section
+
+// RUN: %clang -target x86_64-unknown -fstack-size-section -### 2>&1 | FileCheck %s --check-prefix=CHECK-PRESENT
+// RUN: %clang -target x86_64-scei-ps4 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-PRESENT
+// CHECK-PRESENT: -fstack-size-section
+
+int foo() { return 42; }
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