The recommended optimisation level for debugging is -Og, and is what tools such as gdb prefer. In practice, it equates to -01 with a few specific optimisations turned off.
abi-dumper in particular wants the libraries it inspects in this form. Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> --- CC: Ian Jackson <i...@xenproject.org> CC: Wei Liu <w...@xen.org> CC: Juergen Gross <jgr...@suse.com> --- tools/Rules.mk | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/Rules.mk b/tools/Rules.mk index f61da81f4a..2907ed2d39 100644 --- a/tools/Rules.mk +++ b/tools/Rules.mk @@ -106,8 +106,9 @@ endif CFLAGS_libxenlight += $(CFLAGS_libxenctrl) ifeq ($(debug),y) -# Disable optimizations -CFLAGS += -O0 -fno-omit-frame-pointer +# Use -Og if available, -O0 otherwise +dbg_opt_level := $(call cc-option,$(CC),-Og,-O0) +CFLAGS += $(dbg_opt_level) -fno-omit-frame-pointer # But allow an override to -O0 in case Python enforces -D_FORTIFY_SOURCE=<n>. PY_CFLAGS += $(PY_NOOPT_CFLAGS) else -- 2.11.0
