From cedfa69e6afe381a074d22bdf1e6f2d9e6731038 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 14 Jul 2021 16:36:44 -0400
Subject: test: Add a basic traceback printer

Some tests have some complex flows, and it's useful to be able to see
the call path when there's a failure.

This patch adds a very simple traceback printer, along with changing the
test build arguments to include more debug information.

The result you get from this traceback printer just gives you a function
name and the index into its .txt content, so to use it for more than
"which function calls which", you'll need to use eu-addr2line with the
output.

Signed-off-by: Peter Jones <pjones@redhat.com>
---
 include/test.h  |  2 ++
 include/test.mk | 21 ++++++++++++++++-----
 2 files changed, 18 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/test.h b/include/test.h
index 49a27a94..fedeb782 100644
--- a/include/test.h
+++ b/include/test.h
@@ -69,6 +69,8 @@ extern int debug;
 #define dprint(fmt, ...) {( if (debug) printf("%s:%d:" fmt, __func__, __LINE__, ##__VA_ARGS__); })
 #endif
 
+void print_traceback(int skip);
+
 #define eassert(cond, fmt, ...)                                  \
 	({                                                       \
 		if (!(cond)) {                                   \
diff --git a/include/test.mk b/include/test.mk
index c66b46de..23bf805c 100644
--- a/include/test.mk
+++ b/include/test.mk
@@ -14,14 +14,25 @@ CFLAGS = -O2 -ggdb -std=gnu11 \
 	 -isystem $(TOPDIR)/include/system \
 	 $(EFI_INCLUDES) \
 	 -Iinclude -iquote . \
-	 -fshort-wchar -flto -fno-builtin \
-	 -Wall \
-	 -Wextra \
+	 -isystem /usr/include \
+	 -isystem $(shell $(CC) $(ARCH_CFLAGS) -print-file-name=include) \
+	 $(ARCH_CFLAGS) \
+	 -fshort-wchar \
+	 -flto \
+	 -fno-builtin \
+	 -rdynamic \
+	 -fno-inline \
+	 -fno-eliminate-unused-debug-types \
+	 -fno-eliminate-unused-debug-symbols \
+	 -gpubnames \
+	 -grecord-gcc-switches \
+	 $(DEFAULT_WARNFLAGS) \
 	 -Wsign-compare \
 	 -Wno-deprecated-declarations \
+	 -Wno-unused-but-set-variable \
+	 -Wno-unused-variable \
 	 -Wno-pointer-sign \
-	 -Wno-unused \
-	 -Werror \
+	 $(DEFAULT_WERRFLAGS) \
 	 -Werror=nonnull \
 	 $(shell $(CC) -Werror=nonnull-compare -E -x c /dev/null >/dev/null 2>&1 && echo -Werror=nonnull-compare) \
 	 $(ARCH_DEFINES) \
-- 
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