[llvm-symbolizer] Use the export table if no symbols are present
This lets us make guesses about symbols in third party DLLs without
debug info, like MSVCR120.dll or kernel32.dll. dbghelp does the same
thing.
llvm-svn: 250582
diff --git a/llvm/test/tools/llvm-symbolizer/Inputs/coff-dwarf.cpp b/llvm/test/tools/llvm-symbolizer/Inputs/coff-dwarf.cpp
index 9741439..3a832a9 100644
--- a/llvm/test/tools/llvm-symbolizer/Inputs/coff-dwarf.cpp
+++ b/llvm/test/tools/llvm-symbolizer/Inputs/coff-dwarf.cpp
@@ -1,5 +1,5 @@
// To generate the corresponding EXE, run:
-// clang-cl -O2 -gdwarf -c coff-dwarf.cpp && lld-link -debug coff-dwarf.obj
+// clang-cl -MD -O2 -gdwarf -c coff-dwarf.cpp && lld-link -debug coff-dwarf.obj
extern "C" int puts(const char *str);
diff --git a/llvm/test/tools/llvm-symbolizer/Inputs/coff-exports.cpp b/llvm/test/tools/llvm-symbolizer/Inputs/coff-exports.cpp
new file mode 100644
index 0000000..23b44b3
--- /dev/null
+++ b/llvm/test/tools/llvm-symbolizer/Inputs/coff-exports.cpp
@@ -0,0 +1,20 @@
+// To generate the corresponding EXE, run:
+// clang-cl -MD -c coff-exports.cpp && lld-link /MANIFEST:NO coff-exports.obj
+
+#define EXPORT __declspec(dllexport)
+
+extern "C" int puts(const char *str);
+
+EXPORT void __declspec(noinline) foo() {
+ puts("foo1");
+ puts("foo2");
+}
+
+void bar() {
+ foo();
+}
+
+EXPORT int main() {
+ bar();
+ return 0;
+}
diff --git a/llvm/test/tools/llvm-symbolizer/Inputs/coff-exports.exe b/llvm/test/tools/llvm-symbolizer/Inputs/coff-exports.exe
new file mode 100644
index 0000000..939205e
--- /dev/null
+++ b/llvm/test/tools/llvm-symbolizer/Inputs/coff-exports.exe
Binary files differ
diff --git a/llvm/test/tools/llvm-symbolizer/coff-exports.test b/llvm/test/tools/llvm-symbolizer/coff-exports.test
new file mode 100644
index 0000000..7283acd
--- /dev/null
+++ b/llvm/test/tools/llvm-symbolizer/coff-exports.test
@@ -0,0 +1,17 @@
+RUN: grep '^ADDR:' %s | sed -s 's/ADDR: //' \
+RUN: | llvm-symbolizer --inlining --relative-address -obj="%p/Inputs/coff-exports.exe" \
+RUN: | FileCheck %s
+
+ADDR: 0x500A
+ADDR: 0x5038
+ADDR: 0x504B
+
+We get the expected stack trace, except 'foo' appears for the 'bar' frame
+because 'bar' isn't in the export table.
+
+CHECK: foo(void)
+CHECK: ??:0:0
+CHECK: foo(void)
+CHECK: ??:0:0
+CHECK: main
+CHECK: ??:0:0