diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td index 3ee834e68566..d84613c05912 100644 --- a/clang/include/clang/Driver/Options.td +++ b/clang/include/clang/Driver/Options.td @@ -1574,6 +1574,10 @@ def fdata_sections : Flag <["-"], "fdata-sections">, Group, Flags<[CC1Option]>, HelpText<"Place each data in its own section (ELF Only)">; def fno_data_sections : Flag <["-"], "fno-data-sections">, Group, Flags<[CC1Option]>; +def fstack_size_section : Flag<["-"], "fstack-size-section">, Group, Flags<[CC1Option]>, + HelpText<"Emit section containing metadata on function stack sizes">; +def fno_stack_size_section : Flag<["-"], "fno-stack-size-section">, Group, Flags<[CC1Option]>, + HelpText<"Don't emit section containing metadata on function stack sizes">; def funique_section_names : Flag <["-"], "funique-section-names">, Group, Flags<[CC1Option]>, diff --git a/clang/include/clang/Frontend/CodeGenOptions.def b/clang/include/clang/Frontend/CodeGenOptions.def index bb91cf5f742b..0ee3bb119761 100644 --- a/clang/include/clang/Frontend/CodeGenOptions.def +++ b/clang/include/clang/Frontend/CodeGenOptions.def @@ -83,6 +83,7 @@ CODEGENOPT(InstrumentFunctionEntryBare , 1, 0) ///< Set when 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) diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp index e2349da5f0a4..c4a37dfc8b36 100644 --- a/clang/lib/CodeGen/BackendUtil.cpp +++ b/clang/lib/CodeGen/BackendUtil.cpp @@ -448,6 +448,7 @@ static void initTargetOptions(llvm::TargetOptions &Options, Options.UniqueSectionNames = CodeGenOpts.UniqueSectionNames; Options.EmulatedTLS = CodeGenOpts.EmulatedTLS; Options.DebuggerTuning = CodeGenOpts.getDebuggerTuning(); + Options.EmitStackSizeSection = CodeGenOpts.StackSizeSection; if (CodeGenOpts.EnableSplitDwarf) Options.MCOptions.SplitDwarfFile = CodeGenOpts.SplitDwarfFile; diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp index c445669a5ad4..b7241d2f6be3 100644 --- a/clang/lib/Driver/ToolChains/Clang.cpp +++ b/clang/lib/Driver/ToolChains/Clang.cpp @@ -3798,6 +3798,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, 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()); diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index ce875fa03b97..225280046882 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -682,6 +682,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 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); diff --git a/clang/test/CodeGen/stack-size-section.c b/clang/test/CodeGen/stack-size-section.c new file mode 100644 index 000000000000..f81ba191f752 --- /dev/null +++ b/clang/test/CodeGen/stack-size-section.c @@ -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; } diff --git a/clang/test/Driver/stack-size-section.c b/clang/test/Driver/stack-size-section.c new file mode 100644 index 000000000000..461f0b5c9aee --- /dev/null +++ b/clang/test/Driver/stack-size-section.c @@ -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; }