Tools debug builds are built with optimization level -O1, inherited from the CFLAGS definition in StdGNU.mk. Optimizations confuse the debugger, and the comment justifying -O1 in StdGNU.mk should not apply for a userspace library. Disable optimization by appending -O0 to CFLAGS, which overrides the -O1 flag specified earlier.
Also specify -g3, to add macro debugging information which allows gdb to expand macro invocations. This is useful as libxl uses many non-trivial macros. Signed-off-by: Euan Harris <euan.har...@citrix.com> Changes since v1: * moved flag override to tools/Rules.mk so it affects all tools --- tools/Rules.mk | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/tools/Rules.mk b/tools/Rules.mk index 87a56dc..7ef1ce5 100644 --- a/tools/Rules.mk +++ b/tools/Rules.mk @@ -54,6 +54,11 @@ CFLAGS_libxenvchan = -I$(XEN_LIBVCHAN) LDLIBS_libxenvchan = $(SHLIB_libxenctrl) $(SHLIB_libxenstore) -L$(XEN_LIBVCHAN) -lxenvchan SHLIB_libxenvchan = -Wl,-rpath-link=$(XEN_LIBVCHAN) +ifeq ($(debug),y) +# Disable optimizations and debugging information for macros +CFLAGS += -O0 -g3 +endif + LIBXL_BLKTAP ?= $(CONFIG_BLKTAP2) ifeq ($(LIBXL_BLKTAP),y) -- 1.7.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
