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Print column info in backtraces et al. if available

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This patch allows LLDB to print column info in backtraces et al. if
available, which is useful when the backtrace contains a frame like
the following:

  f(can_crash(0), can_crash(1));

Differential Revision: https://reviews.llvm.org/D51661

llvm-svn: 341506
This commit is contained in:
Adrian Prantl
2018-09-05 23:52:08 +00:00
parent 9ec23049a7
commit 4954f6a565
5 changed files with 18 additions and 3 deletions
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1
lldb/include/lldb/Core/FormatEntity.h
View File

@@ -104,6 +104,7 @@ public:
FunctionIsOptimized,
LineEntryFile,
LineEntryLineNumber,
LineEntryColumn,
LineEntryStartAddress,
LineEntryEndAddress,
CurrentPCArrow

2
lldb/packages/Python/lldbsuite/test/functionalities/asan/Makefile
View File

@@ -1,6 +1,6 @@
LEVEL = ../../make
C_SOURCES := main.c
CFLAGS_EXTRAS := -fsanitize=address -g
CFLAGS_EXTRAS := -fsanitize=address -g -gcolumn-info
include $(LEVEL)/Makefile.rules

3
lldb/packages/Python/lldbsuite/test/functionalities/asan/TestReportData.py
View File

@@ -37,6 +37,7 @@ class AsanTestReportDataCase(TestBase):
self.line_free = line_number('main.c', '// free line')
self.line_breakpoint = line_number('main.c', '// break line')
self.line_crash = line_number('main.c', '// BOOM line')
self.col_crash = 16
def asan_tests(self):
exe = self.getBuildArtifact("a.out")
@@ -63,7 +64,7 @@ class AsanTestReportDataCase(TestBase):
lldb.eStopReasonInstrumentation)
self.expect("bt", "The backtrace should show the crashing line",
substrs=['main.c:%d' % self.line_crash])
substrs=['main.c:%d:%d' % (self.line_crash, self.col_crash)])
self.expect(
"thread info -s",

3
lldb/source/Core/Debugger.cpp
View File

@@ -121,7 +121,8 @@ OptionEnumValueElement g_language_enumerators[] = {
"${module.file.basename}{`${function.name-without-args}" \
"{${frame.no-debug}${function.pc-offset}}}}"
#define FILE_AND_LINE "{ at ${line.file.basename}:${line.number}}"
#define FILE_AND_LINE \
"{ at ${line.file.basename}:${line.number}{:${line.column}}}"
#define IS_OPTIMIZED "{${function.is-optimized} [opt]}"
#define DEFAULT_THREAD_FORMAT \

12
lldb/source/Core/FormatEntity.cpp
View File

@@ -146,6 +146,7 @@ static FormatEntity::Entry::Definition g_function_child_entries[] = {
static FormatEntity::Entry::Definition g_line_child_entries[] = {
ENTRY_CHILDREN("file", LineEntryFile, None, g_file_child_entries),
ENTRY("number", LineEntryLineNumber, UInt32),
ENTRY("column", LineEntryColumn, UInt32),
ENTRY("start-addr", LineEntryStartAddress, UInt64),
ENTRY("end-addr", LineEntryEndAddress, UInt64),
};
@@ -372,6 +373,7 @@ const char *FormatEntity::Entry::TypeToCString(Type t) {
ENUM_TO_CSTR(FunctionIsOptimized);
ENUM_TO_CSTR(LineEntryFile);
ENUM_TO_CSTR(LineEntryLineNumber);
ENUM_TO_CSTR(LineEntryColumn);
ENUM_TO_CSTR(LineEntryStartAddress);
ENUM_TO_CSTR(LineEntryEndAddress);
ENUM_TO_CSTR(CurrentPCArrow);
@@ -1814,6 +1816,16 @@ bool FormatEntity::Format(const Entry &entry, Stream &s,
}
return false;
case Entry::Type::LineEntryColumn:
if (sc && sc->line_entry.IsValid() && sc->line_entry.column) {
const char *format = "%" PRIu32;
if (!entry.printf_format.empty())
format = entry.printf_format.c_str();
s.Printf(format, sc->line_entry.column);
return true;
}
return false;
case Entry::Type::LineEntryStartAddress:
case Entry::Type::LineEntryEndAddress:
if (sc && sc->line_entry.range.GetBaseAddress().IsValid()) {