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Fix PR bootstrap/102389: --with-build-config=bootstrap-lto is broken 

So the problem here is that now the lto-plugin requires NM that works
with LTO to work so we need to pass down NM just like we do for ranlib
and ar.

OK? Bootstrapped and tested with --with-build-config=bootstrap-lto on aarch64-linux-gnu.
Note you need to use binutils 2.35 or later too due to ttps://sourceware.org/PR25355
(I will submit another patch to improve the installation instructions too).

config/ChangeLog:

	PR bootstrap/102389
	* bootstrap-lto-lean.mk: Handle NM like RANLIB AND AR.
	* bootstrap-lto.mk: Likewise.
This commit is contained in:
Andrew Pinski 2021-09-18 01:08:17 +00:00
parent 08900f2889
commit 68aace4458
2 changed files with 8 additions and 4 deletions
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6
config/bootstrap-lto-lean.mk
View File

@ -9,9 +9,11 @@ STAGEfeedback_CFLAGS += -flto=jobserver
# assumes the host supports the linker plugin
LTO_AR = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ar$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
LTO_RANLIB = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ranlib$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
LTO_NM = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-nm$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
LTO_EXPORTS = AR="$(LTO_AR)"; export AR; \
RANLIB="$(LTO_RANLIB)"; export RANLIB;
LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)"
RANLIB="$(LTO_RANLIB)"; export RANLIB; \
NM="$(LTO_NM)"; export NM;
LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)" NM="$(LTO_NM)"
do-compare = /bin/true

6
config/bootstrap-lto.mk
View File

@ -9,10 +9,12 @@ STAGEfeedback_CFLAGS += -flto=jobserver -frandom-seed=1
# assumes the host supports the linker plugin
LTO_AR = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ar$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
LTO_RANLIB = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ranlib$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
LTO_NM = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-nm$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
LTO_EXPORTS = AR="$(LTO_AR)"; export AR; \
RANLIB="$(LTO_RANLIB)"; export RANLIB;
LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)"
RANLIB="$(LTO_RANLIB)"; export RANLIB; \
NM="$(LTO_NM)"; export NM;
LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)" NM="$(LTO_NM)"
do-compare = $(SHELL) $(srcdir)/contrib/compare-lto $$f1 $$f2
extra-compare = gcc/lto1$(exeext)