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-rw-r--r--src/google/stack_frame.h3
-rw-r--r--src/processor/source_line_resolver.cc28
-rw-r--r--src/processor/source_line_resolver.h27
-rw-r--r--src/processor/source_line_resolver_unittest.cc73
4 files changed, 61 insertions, 70 deletions
diff --git a/src/google/stack_frame.h b/src/google/stack_frame.h
index e625aee3..8ede113c 100644
--- a/src/google/stack_frame.h
+++ b/src/google/stack_frame.h
@@ -59,7 +59,8 @@ struct StackFrame {
// The source file name, may be omitted if debug symbols are not available
string source_file_name;
- // The source line number, may be omitted if debug symbols are not available
+ // The (1-based) source line number,
+ // may be omitted if debug symbols are not available
int source_line;
// TODO(bryner): saved registers
diff --git a/src/processor/source_line_resolver.cc b/src/processor/source_line_resolver.cc
index 6ee516ed..a44f4802 100644
--- a/src/processor/source_line_resolver.cc
+++ b/src/processor/source_line_resolver.cc
@@ -18,6 +18,7 @@
#include <vector>
#include <utility>
#include "processor/source_line_resolver.h"
+#include "google/stack_frame.h"
using std::map;
using std::vector;
@@ -26,12 +27,6 @@ using __gnu_cxx::hash;
namespace google_airbag {
-void SourceLineResolver::SourceLineInfo::Reset() {
- function_name.clear();
- source_file.clear();
- source_line = 0;
-}
-
// MemAddrMap is a map subclass which has the following properties:
// - stores pointers to an "entry" type, which are deleted on destruction
// - suitable for address lookup via FindContainingEntry
@@ -97,9 +92,9 @@ class SourceLineResolver::Module {
// Loads the given map file, returning true on success.
bool LoadMap(const string &map_file);
- // Looks up the given relative address, and fills the SourceLineInfo struct
+ // Looks up the given relative address, and fills the StackFrame struct
// with the result.
- void LookupAddress(MemAddr address, SourceLineInfo *info) const;
+ void LookupAddress(MemAddr address, StackFrame *frame) const;
private:
friend class SourceLineResolver;
@@ -147,13 +142,10 @@ bool SourceLineResolver::LoadModule(const string &module_name,
return true;
}
-void SourceLineResolver::LookupAddress(MemAddr address,
- const string &module_name,
- SourceLineInfo *info) const {
- info->Reset();
- ModuleMap::const_iterator it = modules_->find(module_name);
+void SourceLineResolver::FillSourceLineInfo(StackFrame *frame) const {
+ ModuleMap::const_iterator it = modules_->find(frame->module_name);
if (it != modules_->end()) {
- it->second->LookupAddress(address, info);
+ it->second->LookupAddress(frame->instruction, frame);
}
}
@@ -192,13 +184,13 @@ bool SourceLineResolver::Module::LoadMap(const string &map_file) {
}
void SourceLineResolver::Module::LookupAddress(MemAddr address,
- SourceLineInfo *info) const {
+ StackFrame *frame) const {
Function *func = functions_.FindContainingEntry(address);
if (!func) {
return;
}
- info->function_name = func->name;
+ frame->function_name = func->name;
Line *line = func->lines.FindContainingEntry(address);
if (!line) {
return;
@@ -206,9 +198,9 @@ void SourceLineResolver::Module::LookupAddress(MemAddr address,
FileMap::const_iterator it = files_.find(line->source_file_id);
if (it != files_.end()) {
- info->source_file = files_.find(line->source_file_id)->second;
+ frame->source_file_name = files_.find(line->source_file_id)->second;
}
- info->source_line = line->line;
+ frame->source_line = line->line;
}
void SourceLineResolver::Module::ParseFile(char *file_line) {
diff --git a/src/processor/source_line_resolver.h b/src/processor/source_line_resolver.h
index 0d193894..9d67553f 100644
--- a/src/processor/source_line_resolver.h
+++ b/src/processor/source_line_resolver.h
@@ -19,7 +19,6 @@
#ifndef PROCESSOR_SOURCE_LINE_RESOLVER_H__
#define PROCESSOR_SOURCE_LINE_RESOLVER_H__
-#include "config.h"
#include <string>
#include <ext/hash_map>
@@ -28,25 +27,12 @@ namespace google_airbag {
using std::string;
using __gnu_cxx::hash_map;
+class StackFrame;
+
class SourceLineResolver {
public:
typedef unsigned long long MemAddr;
- // A struct that gives source file information for a memory address.
- struct SourceLineInfo {
- // Resets all fields to their default empty values
- void Reset();
-
- // The function name, for example Foo::Foo()
- string function_name;
-
- // The source file, for example C:\foo\bar.cc
- string source_file;
-
- // The line number within the source file (1-based)
- int source_line;
- };
-
SourceLineResolver();
~SourceLineResolver();
@@ -58,11 +44,10 @@ class SourceLineResolver {
// map_file should contain line/address mappings for this module.
bool LoadModule(const string &module_name, const string &map_file);
- // Determines the source line for the given address, and fills info
- // with the result. module_name must match a module name that was
- // passed to LoadModule(). The address should be module-relative.
- void LookupAddress(MemAddr address, const string &module_name,
- SourceLineInfo *info) const;
+ // Fills in the function_base, function_name, source_file_name,
+ // and source_line fields of the StackFrame. The instruction and
+ // module_name fields must already be filled in.
+ void FillSourceLineInfo(StackFrame *frame) const;
private:
template<class T> class MemAddrMap;
diff --git a/src/processor/source_line_resolver_unittest.cc b/src/processor/source_line_resolver_unittest.cc
index c47edce8..b5321085 100644
--- a/src/processor/source_line_resolver_unittest.cc
+++ b/src/processor/source_line_resolver_unittest.cc
@@ -15,9 +15,11 @@
#include <stdio.h>
#include <string>
#include "processor/source_line_resolver.h"
+#include "google/stack_frame.h"
using std::string;
using google_airbag::SourceLineResolver;
+using google_airbag::StackFrame;
#define ASSERT_TRUE(cond) \
if (!(cond)) { \
@@ -29,13 +31,19 @@ using google_airbag::SourceLineResolver;
#define ASSERT_EQ(e1, e2) ASSERT_TRUE((e1) == (e2))
-static bool VerifyEmpty(const SourceLineResolver::SourceLineInfo &info) {
- ASSERT_TRUE(info.function_name.empty());
- ASSERT_TRUE(info.source_file.empty());
- ASSERT_EQ(info.source_line, 0);
+static bool VerifyEmpty(const StackFrame &frame) {
+ ASSERT_TRUE(frame.function_name.empty());
+ ASSERT_TRUE(frame.source_file_name.empty());
+ ASSERT_EQ(frame.source_line, 0);
return true;
}
+static void ClearSourceLineInfo(StackFrame *frame) {
+ frame->function_name.clear();
+ frame->source_file_name.clear();
+ frame->source_line = 0;
+}
+
static bool RunTests() {
string testdata_dir = string(getenv("srcdir") ? getenv("srcdir") : ".") +
"/src/processor/testdata";
@@ -44,32 +52,37 @@ static bool RunTests() {
ASSERT_TRUE(resolver.LoadModule("module1", testdata_dir + "/module1.out"));
ASSERT_TRUE(resolver.LoadModule("module2", testdata_dir + "/module2.out"));
- SourceLineResolver::SourceLineInfo info;
- resolver.LookupAddress(0x1000, "module1", &info);
- ASSERT_EQ(info.function_name, "Function1_1");
- ASSERT_EQ(info.source_file, "file1_1.cc");
- ASSERT_EQ(info.source_line, 44);
-
- info.Reset();
- ASSERT_TRUE(VerifyEmpty(info));
-
- resolver.LookupAddress(0x800, "module1", &info);
- ASSERT_TRUE(VerifyEmpty(info));
-
- resolver.LookupAddress(0x1280, "module1", &info);
- ASSERT_EQ(info.function_name, "Function1_3");
- ASSERT_TRUE(info.source_file.empty());
- ASSERT_EQ(info.source_line, 0);
-
- resolver.LookupAddress(0x1380, "module1", &info);
- ASSERT_EQ(info.function_name, "Function1_4");
- ASSERT_TRUE(info.source_file.empty());
- ASSERT_EQ(info.source_line, 0);
-
- resolver.LookupAddress(0x2180, "module2", &info);
- ASSERT_EQ(info.function_name, "Function2_2");
- ASSERT_EQ(info.source_file, "file2_2.cc");
- ASSERT_EQ(info.source_line, 21);
+ StackFrame frame;
+ frame.instruction = 0x1000;
+ frame.module_name = "module1";
+ resolver.FillSourceLineInfo(&frame);
+ ASSERT_EQ(frame.function_name, "Function1_1");
+ ASSERT_EQ(frame.source_file_name, "file1_1.cc");
+ ASSERT_EQ(frame.source_line, 44);
+
+ ClearSourceLineInfo(&frame);
+ frame.instruction = 0x800;
+ resolver.FillSourceLineInfo(&frame);
+ ASSERT_TRUE(VerifyEmpty(frame));
+
+ frame.instruction = 0x1280;
+ resolver.FillSourceLineInfo(&frame);
+ ASSERT_EQ(frame.function_name, "Function1_3");
+ ASSERT_TRUE(frame.source_file_name.empty());
+ ASSERT_EQ(frame.source_line, 0);
+
+ frame.instruction = 0x1380;
+ resolver.FillSourceLineInfo(&frame);
+ ASSERT_EQ(frame.function_name, "Function1_4");
+ ASSERT_TRUE(frame.source_file_name.empty());
+ ASSERT_EQ(frame.source_line, 0);
+
+ frame.instruction = 0x2180;
+ frame.module_name = "module2";
+ resolver.FillSourceLineInfo(&frame);
+ ASSERT_EQ(frame.function_name, "Function2_2");
+ ASSERT_EQ(frame.source_file_name, "file2_2.cc");
+ ASSERT_EQ(frame.source_line, 21);
ASSERT_FALSE(resolver.LoadModule("module3",
testdata_dir + "/module3_bad.out"));
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-26 16:17:24 +0000