https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69821
Bug ID: 69821
Summary: -fdebug-prefix-map doesn't affect gcc command line
switches in DWARF DW_AT_producer.
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: hongxu.jia at windriver dot com
Target Milestone: ---
Hi all,
I come from OpenEmbedded community (https://www.yoctoproject.org/),
thanks the powerful gcc, it helps us to do lots of compiling staff.
While cross compilation, we add '-g' to record debugging info,
and lots of build path existed in debugging info. We do not want to
expose the build path to others. So add '-fdebug-prefix-map=old=new'
to replace the build path with target path.
But the option '-fdebug-prefix-map=old=new' itself which included
build path still exists in gcc command line switches in DWARF
DW_AT_producer. I know we could use '-gno-record-gcc-switches' to
not record all gcc command line switches in DWARF DW_AT_producer.
But we would like to keep the others and only remove
'-fdebug-prefix-map=old=new'.
So I suggested to add a new option '-gno-record-debug-prefix-map'
which don't record '-fdebug-prefix-map' in gcc command line switches
in DWARF DW_AT_producer.
Thanks
Hongxu
