> -----Original Message----- > From: Nathanael Nerode <[email protected]> > Sent: 19 October 2026 18:48 > To: Tamar Christina <[email protected]>; [email protected] > Cc: nd <[email protected]>; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected] > Subject: Re: [patch][build-system]: strip checking flags when compiling GMP > to fix LTO bootstrap [PR127376] > > I approve this. I'm basically inactive and can't commit anything right now, > someone else will have to.
Thank you! I have commit access and will commit in a bit. Cheers, Tamar > > On Sun, Oct 18, 2026, at 10:00 AM, Tamar Christina wrote: > > Ping. > > > >> -----Original Message----- > >> From: Tamar Christina <[email protected]> > >> Sent: 05 October 2026 12:48 > >> To: Tamar Christina <[email protected]>; [email protected] > >> Cc: nd <[email protected]>; [email protected]; [email protected]; > >> [email protected]; [email protected]; [email protected] > >> Subject: RE: [patch][build-system]: strip checking flags when compiling > GMP > >> to fix LTO bootstrap [PR127376] > >> > >> Ping. > >> > >> > -----Original Message----- > >> > From: Tamar Christina <[email protected]> > >> > Sent: 28 September 2026 08:06 > >> > To: [email protected] > >> > Cc: nd <[email protected]>; [email protected]; [email protected]; > >> > [email protected]; [email protected]; [email protected] > >> > Subject: [patch][build-system]: strip checking flags when compiling GMP > to > >> fix > >> > LTO bootstrap [PR127376] > >> > > >> > LTO bootstrap currently fails due to MPFR and GMP failing stage2 vs > stage3 > >> > comparison: > >> > > >> > mpfr/src/urandom.o differs > >> > mpfr/src/urandomb.o differs > >> > mpfr/src/vasprintf.o differs > >> > mpfr/src/yn.o differs > >> > mpfr/src/zeta.o differs > >> > mpfr/src/zeta_ui.o differs > >> > > >> > of pretty much every object file for mpfr and mpc. > >> > > >> > This is because in Makefile.tpl +579 we have > >> > > >> > STAGE1_TFLAGS += -fno-checking > >> > STAGE2_CFLAGS += -fno-checking > >> > STAGE2_TFLAGS += -fno-checking > >> > STAGE3_CFLAGS += -fchecking=1 > >> > STAGE3_TFLAGS += -fchecking=1 > >> > > >> > But with a LTO bootstrap the options leak into the LTO metadata due to > the > >> > headers ending up with the checking flags inside them. > >> > > >> > stage2-gmp/gmp.h:2334 #define __GMP_CC " ... -fno-checking" > >> > stage3-gmp/gmp.h:2334 #define __GMP_CC " ... -fchecking=1" > >> > > >> > during an LTO bootstrap we call compare-lto which strips the options > from > >> > .gnu.lto_.opts but they're also present in .gnu.lto_.decls.*. > >> > > >> > So we get a miscompare due to -fchecking differences. > >> > > >> > Since MPFR and GMP are C programs just prevent -fno-checking and - > >> > fchecking=1 > >> > from getting passed to them. > >> > > >> > This patch adds a little autogen macro and Scheme function to strip out > >> these > >> > flags only for mpfr and gmp. > >> > > >> > Bootstrapped Regtested on aarch64-none-linux-gnu, > >> > arm-none-linux-gnueabihf, x86_64-pc-linux-gnu > >> > -m32, -m64 > >> > > >> > with: > >> > > >> > - default bootstrap > >> > - profiledbootstrap > >> > - LTO bootstrap > >> > - LTO+O3 > >> > - bootstrap lto locality > >> > - boostrap LTO lean > >> > > >> > Ok for master? > >> > > >> > Thanks, > >> > Tamar > >> > > >> > ChangeLog: > >> > > >> > PR bootstrap/127376 > >> > * Makefile.in: Renegerate. > >> > * Makefile.tpl: Strip checking flags for mpfr and gmp. > >> > > >> > --- > >> > diff --git a/Makefile.in b/Makefile.in > >> > index > >> > > >> > 767d6aab977aa722205275902bdef15635053f25..10adfcebaef9e03caf5f7e > >> > 57b92538ed5e21e4bc 100644 > >> > --- a/Makefile.in > >> > +++ b/Makefile.in > >> > @@ -700,6 +700,9 @@ STAGEautofeedback_TFLAGS = > $(STAGE3_TFLAGS) > >> > # may result in additional warnings. > >> > STAGEautofeedback_CONFIGURE_FLAGS = $(filter-out --enable-werror- > >> > always,$(STAGE_CONFIGURE_FLAGS)) > >> > > >> > +GMP_CHECKING_FLAGS = -fno-checking -fchecking=1 > >> > +GMP_FILTER_CHECKING_FLAGS = $(filter-out > >> > $(GMP_CHECKING_FLAGS),$(1)) > >> > + > >> > do-compare = @do_compare@ > >> > do-compare3 = $(do-compare) > >> > > >> > @@ -13383,10 +13386,10 @@ configure-stage1-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE1_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE1_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE1_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE1_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE1_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(LIBCFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 1 in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13416,11 +13419,11 @@ configure-stage2-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE2_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE2_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE2_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE2_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE2_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGE2_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 2 in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13450,11 +13453,11 @@ configure-stage3-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE3_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE3_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE3_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE3_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE3_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGE3_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 3 in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13484,11 +13487,11 @@ configure-stage4-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE4_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE4_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE4_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE4_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE4_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGE4_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 4 in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13518,11 +13521,11 @@ configure-stageprofile-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEprofile_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEprofile_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEprofile_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEprofile_CFLAGS))"; export > CFLAGS; > >> \ > >> > CXXFLAGS="$(STAGEprofile_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEprofile_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage profile in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13552,11 +13555,11 @@ configure-stagetrain-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEtrain_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEtrain_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEtrain_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEtrain_CFLAGS))"; export CFLAGS; > \ > >> > CXXFLAGS="$(STAGEtrain_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEtrain_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage train in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13586,11 +13589,11 @@ configure-stagefeedback-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEfeedback_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEfeedback_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEfeedback_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEfeedback_CFLAGS))"; export > >> CFLAGS; > >> > \ > >> > CXXFLAGS="$(STAGEfeedback_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEfeedback_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage feedback in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13620,11 +13623,11 @@ configure-stageautoprofile-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEautoprofile_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautoprofile_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEautoprofile_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautoprofile_CFLAGS))"; export > >> > CFLAGS; \ > >> > CXXFLAGS="$(STAGEautoprofile_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEautoprofile_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage autoprofile in $(HOST_SUBDIR)/gmp; \ > >> > @@ -13654,11 +13657,11 @@ configure-stageautofeedback-gmp: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/gmp > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEautofeedback_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautofeedback_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/gmp/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEautofeedback_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautofeedback_CFLAGS))"; export > >> > CFLAGS; \ > >> > CXXFLAGS="$(STAGEautofeedback_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEautofeedback_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage autofeedback in $(HOST_SUBDIR)/gmp; \ > >> > @@ -15657,10 +15660,10 @@ configure-stage1-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE1_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE1_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE1_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE1_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE1_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(LIBCFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 1 in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15690,11 +15693,11 @@ configure-stage2-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE2_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE2_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE2_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE2_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE2_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGE2_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 2 in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15724,11 +15727,11 @@ configure-stage3-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE3_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE3_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE3_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE3_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE3_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGE3_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 3 in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15758,11 +15761,11 @@ configure-stage4-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE4_TFLAGS)"; \ > >> > + TFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE4_TFLAGS))"; > >> > \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGE4_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call GMP_FILTER_CHECKING_FLAGS,$(STAGE4_CFLAGS))"; > >> > export CFLAGS; \ > >> > CXXFLAGS="$(STAGE4_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGE4_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage 4 in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15792,11 +15795,11 @@ configure-stageprofile-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEprofile_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEprofile_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEprofile_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEprofile_CFLAGS))"; export > CFLAGS; > >> \ > >> > CXXFLAGS="$(STAGEprofile_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEprofile_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage profile in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15826,11 +15829,11 @@ configure-stagetrain-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEtrain_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEtrain_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEtrain_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEtrain_CFLAGS))"; export CFLAGS; > \ > >> > CXXFLAGS="$(STAGEtrain_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEtrain_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage train in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15860,11 +15863,11 @@ configure-stagefeedback-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEfeedback_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEfeedback_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEfeedback_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEfeedback_CFLAGS))"; export > >> CFLAGS; > >> > \ > >> > CXXFLAGS="$(STAGEfeedback_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEfeedback_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage feedback in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15894,11 +15897,11 @@ configure-stageautoprofile-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEautoprofile_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautoprofile_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEautoprofile_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautoprofile_CFLAGS))"; export > >> > CFLAGS; \ > >> > CXXFLAGS="$(STAGEautoprofile_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEautoprofile_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage autoprofile in $(HOST_SUBDIR)/mpc; \ > >> > @@ -15928,11 +15931,11 @@ configure-stageautofeedback-mpc: > >> > @$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)/mpc > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGEautofeedback_TFLAGS)"; \ > >> > + TFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautofeedback_TFLAGS))"; \ > >> > test ! -f $(HOST_SUBDIR)/mpc/Makefile || exit 0; \ > >> > $(HOST_EXPORTS) \ > >> > $(POSTSTAGE1_HOST_EXPORTS) \ > >> > - CFLAGS="$(STAGEautofeedback_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="$(call > >> > GMP_FILTER_CHECKING_FLAGS,$(STAGEautofeedback_CFLAGS))"; export > >> > CFLAGS; \ > >> > CXXFLAGS="$(STAGEautofeedback_CXXFLAGS)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(STAGEautofeedback_CFLAGS)"; export LIBCFLAGS; \ > >> > echo Configuring stage autofeedback in $(HOST_SUBDIR)/mpc; \ > >> > diff --git a/Makefile.tpl b/Makefile.tpl > >> > index > >> > > >> > 07b434e4343105439844e05cd7a4652a8480b373..7fa22ce10d4c7d44607 > >> > 1a3dd1c23840793dc54b9 100644 > >> > --- a/Makefile.tpl > >> > +++ b/Makefile.tpl > >> > @@ -607,6 +607,9 @@ STAGEautofeedback_TFLAGS = > $(STAGE3_TFLAGS) > >> > # may result in additional warnings. > >> > STAGEautofeedback_CONFIGURE_FLAGS = $(filter-out --enable-werror- > >> > always,$(STAGE_CONFIGURE_FLAGS)) > >> > > >> > +GMP_CHECKING_FLAGS = -fno-checking -fchecking=1 > >> > +GMP_FILTER_CHECKING_FLAGS = $(filter-out > >> > $(GMP_CHECKING_FLAGS),$(1)) > >> > + > >> > do-compare = @do_compare@ > >> > do-compare3 = $(do-compare) > >> > > >> > @@ -1196,7 +1199,18 @@ TAGS: do-TAGS > >> > # Macros for configure and all targets > >> > # ------------------------------------ > >> > > >> > -[+ DEFINE configure +] > >> > +[+ ;; Return the stage flag variable that should be used when > >> > configuring > >> > + ;; the current module. > >> > + ;; GMP and MPC record the compiler options in object files, which > makes > >> > + ;; LTO bootstrap comparisons fail if stage-specific checking flags > >> > differ. > >> > + (define stage-configure-flags > >> > + (lambda (suffix) > >> > + (let ((flag (string-append "STAGE" (get "id") suffix))) > >> > + (if (or (= (get "module") "gmp") > >> > + (= (get "module") "mpc")) > >> > + (string-append "$(call GMP_FILTER_CHECKING_FLAGS,$(" flag > >> > "))") > >> > + (string-append "$(" flag ")"))))) > >> > ++][+ DEFINE configure +] > >> > .PHONY: configure-[+prefix+][+module+] maybe-configure- > >> > [+prefix+][+module+] > >> > maybe-configure-[+prefix+][+module+]: > >> > @if gcc-bootstrap > >> > @@ -1253,7 +1267,7 @@ configure-stage[+id+]-[+prefix+][+module+]: > >> > @$(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+] > >> > @r=`${PWD_COMMAND}`; export r; \ > >> > s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ > >> > - TFLAGS="$(STAGE[+id+]_TFLAGS)"; \ > >> > + TFLAGS="[+ (stage-configure-flags "_TFLAGS") +]"; \ > >> > [+ IF check_multilibs > >> > +]echo "Checking multilib configuration for [+module+]..."; \ > >> > $(CC_FOR_TARGET) --print-multi-lib > > >> > [+subdir+]/[+module+]/multilib.tmp 2> /dev/null; \ > >> > @@ -1273,7 +1287,7 @@ configure-stage[+id+]-[+prefix+][+module+]: > >> > CFLAGS="$(CFLAGS_FOR_TARGET)"; export CFLAGS; \ > >> > CXXFLAGS="$(CXXFLAGS_FOR_TARGET)"; export CXXFLAGS; \ > >> > LIBCFLAGS="$(LIBCFLAGS_FOR_TARGET)"; export LIBCFLAGS;[+ ELSE > >> > prefix +] \ > >> > - CFLAGS="$(STAGE[+id+]_CFLAGS)"; export CFLAGS; \ > >> > + CFLAGS="[+ (stage-configure-flags "_CFLAGS") +]"; export > >> > CFLAGS; \ > >> > CXXFLAGS="$(STAGE[+id+]_CXXFLAGS)"; export CXXFLAGS;[+ IF (= > >> > (get "module") "gcc") +] \ > >> > GDCFLAGS="$(STAGE[+id+]_GDCFLAGS)"; export GDCFLAGS;[+ ENDIF > >> > +][+ IF prev +] \ > >> > LIBCFLAGS="$(STAGE[+id+]_CFLAGS)"[+ ELSE prev +] \ > >> > > >> > > >> > --
