Use libbacktrace to generate better leak callstacks.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3986 ed5197a5-7fde-0310-b194-c3ffbd925b24

Makefile

@@ -15,19 +15,21 @@ CFLAGS += \
 	-Wno-cast-function-type \
 	-MMD \
 	-ffunction-sections \
-	-fdata-sections
+	-fdata-sections \
+	-fno-omit-frame-pointer \
+	-g
 LDFLAGS += -Wl,-gc-sections
 
-debug windebug: CFLAGS += -Og -g -fno-omit-frame-pointer
+debug windebug: CFLAGS += -Og
 debug release: LDFLAGS += -rdynamic
-release winrelease: CFLAGS += -DNDEBUG -O3 -g
+release winrelease: CFLAGS += -DNDEBUG -O3
 windebug winrelease: CC = i686-w64-mingw32-gcc-win32
 windebug winrelease: AS = $(CC)
 windebug winrelease: CFLAGS += -D_WIN32_WINNT=0x0A00 -DWINVER=0x0A00 -DNTDDI_VERSION=NTDDI_WIN10
 windebug winrelease: LDFLAGS += -static
 
 ifeq ($(UNAME_M),x86_64)
-debug: CFLAGS += -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer -fno-common
+debug: CFLAGS += -fsanitize=address -fsanitize=undefined -fno-common
 debug: LDFLAGS += -fsanitize=address -fsanitize=undefined
 endif
 
@@ -135,7 +137,6 @@ $(UV_OBJS): CFLAGS += \
 	-Wno-unused-but-set-variable \
 	-Wno-incompatible-pointer-types \
 	-Wno-sign-compare \
-	-Wno-maybe-uninitialized \
 	-Wno-unused-variable \
 	-D_GNU_SOURCE \
 
@@ -237,6 +238,48 @@ $(QUICKJS_OBJS): CFLAGS += \
 	-Wno-unused-but-set-variable \
 	-Wno-enum-conversion
 
+LIBBACKTRACE_SOURCES := \
+	deps/libbacktrace/atomic.c \
+	deps/libbacktrace/backtrace.c \
+	deps/libbacktrace/dwarf.c \
+	deps/libbacktrace/elf.c \
+	deps/libbacktrace/fileline.c \
+	deps/libbacktrace/mmap.c \
+	deps/libbacktrace/mmapio.c \
+	deps/libbacktrace/posix.c \
+	deps/libbacktrace/print.c \
+	deps/libbacktrace/simple.c \
+	deps/libbacktrace/sort.c \
+	deps/libbacktrace/state.c
+
+	#deps/libbacktrace/unknown.c
+	#deps/libbacktrace/read.c \
+	#deps/libbacktrace/nounwind.c \
+	#deps/libbacktrace/instrumented_alloc.c \
+	#deps/libbacktrace/pecoff.c \
+	#deps/libbacktrace/xcoff.c
+	#deps/libbacktrace/macho.c \
+	#deps/libbacktrace/alloc.c \
+	#deps/libbacktrace/allocfail.c
+	#deps/libbacktrace/btest.c
+	#deps/libbacktrace/edtest.c
+	#deps/libbacktrace/edtest2.c
+	#deps/libbacktrace/mtest.c
+	#deps/libbacktrace/stest.c
+	#deps/libbacktrace/test_format.c
+	#deps/libbacktrace/testlib.c
+	#deps/libbacktrace/ttest.c
+	#deps/libbacktrace/unittest.c
+	#deps/libbacktrace/xztest.c
+	#deps/libbacktrace/ztest.c
+LIBBACKTRACE_OBJS := $(call get_objs,LIBBACKTRACE_SOURCES)
+$(LIBBACKTRACE_OBJS): CFLAGS += \
+	-Ideps/libbacktrace_config \
+	-Wno-unused-but-set-variable \
+	-Wno-maybe-initialized \
+	-Wno-unused-function \
+	-DBACKTRACE_ELF_SIZE=64
+
 LDFLAGS += \
 	-pthread \
 	-lm
@@ -260,6 +303,7 @@ ALL_APP_OBJS := \
 	$(APP_OBJS) \
 	$(BASE64C_OBJS) \
 	$(BLOWFISH_OBJS) \
+	$(LIBBACKTRACE_OBJS) \
 	$(QUICKJS_OBJS) \
 	$(SODIUM_OBJS) \
 	$(SQLITE_OBJS) \