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[sanitizer-coverage] rename sanitizer-coverage-create-pc-table into sanitizer-coverage-pc-table and add plumbing for a clang flag

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llvm-svn: 309337
This commit is contained in:
Kostya Serebryany 2017-07-28 00:09:29 +00:00
parent c38c834cb8
commit 62523c8dcf
3 changed files with 9 additions and 7 deletions
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1
include/llvm/Transforms/Instrumentation.h
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@ -183,6 +183,7 @@ struct SanitizerCoverageOptions {
bool TracePC = false;
bool TracePCGuard = false;
bool Inline8bitCounters = false;
bool PCTable = false;
bool NoPrune = false;
SanitizerCoverageOptions() = default;

9
lib/Transforms/Instrumentation/SanitizerCoverage.cpp
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@ -84,7 +84,7 @@ static cl::opt<bool> ClTracePCGuard("sanitizer-coverage-trace-pc-guard",
// to __sanitizer_cov_pcs_init.
// This way the coverage instrumentation does not need to acquire the PCs
// at run-time. Works with trace-pc-guard and inline-8bit-counters.
static cl::opt<bool> ClCreatePCTable("sanitizer-coverage-create-pc-table",
static cl::opt<bool> ClCreatePCTable("sanitizer-coverage-pc-table",
cl::desc("create a static PC table"),
cl::Hidden, cl::init(false));
@ -147,6 +147,7 @@ SanitizerCoverageOptions OverrideFromCL(SanitizerCoverageOptions Options) {
Options.TracePC |= ClTracePC;
Options.TracePCGuard |= ClTracePCGuard;
Options.Inline8bitCounters |= ClInline8bitCounters;
Options.PCTable |= ClCreatePCTable;
if (!Options.TracePCGuard && !Options.TracePC && !Options.Inline8bitCounters)
Options.TracePCGuard = true; // TracePCGuard is default.
Options.NoPrune |= !ClPruneBlocks;
@ -216,7 +217,7 @@ private:
GlobalVariable *FunctionGuardArray; // for trace-pc-guard.
GlobalVariable *Function8bitCounterArray; // for inline-8bit-counters.
GlobalVariable *FunctionPCsArray; // for create-pc-table.
GlobalVariable *FunctionPCsArray; // for pc-table.
SanitizerCoverageOptions Options;
};
@ -341,7 +342,7 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
if (Function8bitCounterArray)
Ctor = CreateInitCallsForSections(M, SanCov8bitCountersInitName, Int8PtrTy,
SanCovCountersSectionName);
if (Ctor && ClCreatePCTable) {
if (Ctor && Options.PCTable) {
auto SecStartEnd = CreateSecStartEnd(M, SanCovPCsSectionName, Int8PtrTy);
Function *InitFunction = declareSanitizerInitFunction(
M, SanCovPCsInitName, {Int8PtrTy, Int8PtrTy});
@ -515,7 +516,7 @@ void SanitizerCoverageModule::CreateFunctionLocalArrays(
if (Options.Inline8bitCounters)
Function8bitCounterArray = CreateFunctionLocalArrayInSection(
AllBlocks.size(), F, Int8Ty, SanCovCountersSectionName);
if (ClCreatePCTable)
if (Options.PCTable)
CreatePCArray(F, AllBlocks);
}

6
test/Instrumentation/SanitizerCoverage/pc-table.ll
View File

@ -1,6 +1,6 @@
; Test -sanitizer-coverage-create-pc-table=1
; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard -sanitizer-coverage-create-pc-table=1 -S | FileCheck %s
; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-inline-8bit-counters -sanitizer-coverage-create-pc-table=1 -S | FileCheck %s
; Test -sanitizer-coverage-pc-table=1
; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard -sanitizer-coverage-pc-table=1 -S | FileCheck %s
; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-inline-8bit-counters -sanitizer-coverage-pc-table=1 -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"