Author: kcc
Date: Fri Jun 2 20:36:23 2017
New Revision: 304631
URL: http://llvm.org/viewvc/llvm-project?rev=304631&view=rev
Log:
[sanitizer-coverage] one more flavor of coverage:
-fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting
yet. (clang part)
Modified:
cfe/trunk/include/clang/Driver/CC1Options.td
cfe/trunk/include/clang/Frontend/CodeGenOptions.def
cfe/trunk/lib/CodeGen/BackendUtil.cpp
cfe/trunk/lib/Driver/SanitizerArgs.cpp
cfe/trunk/lib/Frontend/CompilerInvocation.cpp
cfe/trunk/test/Driver/fsanitize-coverage.c
Modified: cfe/trunk/include/clang/Driver/CC1Options.td
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=304631&r1=304630&r2=304631&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Fri Jun 2 20:36:23 2017
@@ -293,6 +293,9 @@ def fsanitize_coverage_trace_gep
def fsanitize_coverage_8bit_counters
: Flag<["-"], "fsanitize-coverage-8bit-counters">,
HelpText<"Enable frequency counters in sanitizer coverage">;
+def fsanitize_coverage_inline_8bit_counters
+ : Flag<["-"], "fsanitize-coverage-inline-8bit-counters">,
+ HelpText<"Enable inline 8-bit counters in sanitizer coverage">;
def fsanitize_coverage_trace_pc
: Flag<["-"], "fsanitize-coverage-trace-pc">,
HelpText<"Enable PC tracing in sanitizer coverage">;
Modified: cfe/trunk/include/clang/Frontend/CodeGenOptions.def
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/CodeGenOptions.def?rev=304631&r1=304630&r2=304631&view=diff
==============================================================================
--- cfe/trunk/include/clang/Frontend/CodeGenOptions.def (original)
+++ cfe/trunk/include/clang/Frontend/CodeGenOptions.def Fri Jun 2 20:36:23 2017
@@ -163,6 +163,7 @@ CODEGENOPT(SanitizeCoverageTracePC, 1, 0
///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with
guard
///< in sanitizer coverage.
+CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit
counters.
CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning.
CODEGENOPT(SanitizeStats , 1, 0) ///< Collect statistics for sanitizers.
CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled.
Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=304631&r1=304630&r2=304631&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Fri Jun 2 20:36:23 2017
@@ -187,6 +187,7 @@ static void addSanitizerCoveragePass(con
Opts.TracePC = CGOpts.SanitizeCoverageTracePC;
Opts.TracePCGuard = CGOpts.SanitizeCoverageTracePCGuard;
Opts.NoPrune = CGOpts.SanitizeCoverageNoPrune;
+ Opts.Inline8bitCounters = CGOpts.SanitizeCoverageInline8bitCounters;
PM.add(createSanitizerCoverageModulePass(Opts));
}
Modified: cfe/trunk/lib/Driver/SanitizerArgs.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/SanitizerArgs.cpp?rev=304631&r1=304630&r2=304631&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/SanitizerArgs.cpp (original)
+++ cfe/trunk/lib/Driver/SanitizerArgs.cpp Fri Jun 2 20:36:23 2017
@@ -48,13 +48,14 @@ enum CoverageFeature {
CoverageBB = 1 << 1,
CoverageEdge = 1 << 2,
CoverageIndirCall = 1 << 3,
- CoverageTraceBB = 1 << 4,
+ CoverageTraceBB = 1 << 4, // Deprecated.
CoverageTraceCmp = 1 << 5,
CoverageTraceDiv = 1 << 6,
CoverageTraceGep = 1 << 7,
- Coverage8bitCounters = 1 << 8,
+ Coverage8bitCounters = 1 << 8, // Deprecated.
CoverageTracePC = 1 << 9,
CoverageTracePCGuard = 1 << 10,
+ CoverageInline8bitCounters = 1 << 12,
CoverageNoPrune = 1 << 11,
};
@@ -530,7 +531,8 @@ SanitizerArgs::SanitizerArgs(const ToolC
}
// trace-pc w/o func/bb/edge implies edge.
- if ((CoverageFeatures & (CoverageTracePC | CoverageTracePCGuard)) &&
+ if ((CoverageFeatures &
+ (CoverageTracePC | CoverageTracePCGuard | CoverageInline8bitCounters))
&&
!(CoverageFeatures & InsertionPointTypes))
CoverageFeatures |= CoverageEdge;
@@ -637,6 +639,7 @@ void SanitizerArgs::addArgs(const ToolCh
std::make_pair(Coverage8bitCounters, "-fsanitize-coverage-8bit-counters"),
std::make_pair(CoverageTracePC, "-fsanitize-coverage-trace-pc"),
std::make_pair(CoverageTracePCGuard, "-fsanitize-coverage-trace-pc-guard"),
+ std::make_pair(CoverageInline8bitCounters,
"-fsanitize-coverage-inline-8bit-counters"),
std::make_pair(CoverageNoPrune, "-fsanitize-coverage-no-prune")};
for (auto F : CoverageFlags) {
if (CoverageFeatures & F.first)
@@ -798,6 +801,7 @@ int parseCoverageFeatures(const Driver &
.Case("trace-pc", CoverageTracePC)
.Case("trace-pc-guard", CoverageTracePCGuard)
.Case("no-prune", CoverageNoPrune)
+ .Case("inline-8bit-counters", CoverageInline8bitCounters)
.Default(0);
if (F == 0)
D.Diag(clang::diag::err_drv_unsupported_option_argument)
Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=304631&r1=304630&r2=304631&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Fri Jun 2 20:36:23 2017
@@ -768,6 +768,8 @@ static bool ParseCodeGenArgs(CodeGenOpti
Opts.SanitizeCoverageTracePCGuard =
Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
+ Opts.SanitizeCoverageInline8bitCounters =
+ Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
Opts.SanitizeMemoryTrackOrigins =
getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0,
Diags);
Opts.SanitizeMemoryUseAfterDtor =
Modified: cfe/trunk/test/Driver/fsanitize-coverage.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/fsanitize-coverage.c?rev=304631&r1=304630&r2=304631&view=diff
==============================================================================
--- cfe/trunk/test/Driver/fsanitize-coverage.c (original)
+++ cfe/trunk/test/Driver/fsanitize-coverage.c Fri Jun 2 20:36:23 2017
@@ -84,6 +84,9 @@
// RUN: %clang -target x86_64-linux-gnu
-fsanitize-coverage=no-prune,func,trace-pc-guard %s -### 2>&1 | FileCheck %s
--check-prefix=CHECK_NOPRUNE
// CHECK_NOPRUNE: -fsanitize-coverage-no-prune
+// RUN: %clang -target x86_64-linux-gnu
-fsanitize-coverage=inline-8bit-counters %s -### 2>&1 | FileCheck %s
--check-prefix=CHECK_INLINE8BIT
+// CHECK_INLINE8BIT: -fsanitize-coverage-inline-8bit-counters
+
// RUN: %clang_cl --target=i386-pc-win32 -fsanitize=address
-fsanitize-coverage=func,trace-pc-guard -c -### -- %s 2>&1 | FileCheck %s
-check-prefix=CLANG-CL-COVERAGE
// CLANG-CL-COVERAGE-NOT: error:
// CLANG-CL-COVERAGE-NOT: warning:
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