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Re: "make bubblestrap" weirdness


Kelley Cook wrote:

In recent CVS checkouts of GCC mainline, I have noticed a
weird bootstrapping issue. The steps are:

  1. make bootstrap
  2. touch $GCC_SRC_DIR/gcc/java/check-init.c
  3. make bubblestrap
  4. touch $GCC_SRC_DIR/gcc/java/check-init.c
  5. make bubblestrap

In step #3, I see "genattrab" and other "gen*" programs
running once again, while in #5 (and subsequent such
iterations) they don't. I have seen this on two separate
x86-Linux boxen.


It seems that you've discovered a regression from 3.4. Unfortunately, it likely is related to my moving the GCC build executables into a build/ directory.

Please create a new PR and feel free to assign it to me <kcook@gcc.gnu.org>.

Please try this patch.

Bootstrapped and bubblestrapped on i686-pc-cygwin

BTW, OK to install; it doesn't hurt anything besides running few more tiny scripts in every stage.

diff -prcd gcc-orig/gcc/Makefile.in gcc-snapshot/gcc/Makefile.in
*** gcc-orig/gcc/Makefile.in    Wed Jan  5 12:31:37 2005
--- gcc-snapshot/gcc/Makefile.in        Wed Jan 12 16:30:33 2005
*************** STAGECOPYSTUFF = insn-flags.h insn-confi
*** 950,959 ****
  genrtl.c genrtl.h gt-*.h gtype-*.h gtype-desc.c gtyp-gen.h

# Files to be moved away after each stage in building.
! STAGEMOVESTUFF = *$(objext) \
! s-flags s-config s-codes s-mlib s-genrtl s-modes s-gtype \
! s-gtyp-gen s-output s-recog s-emit s-extract s-peep s-check s-conditions \
! s-attr s-attrtab s-opinit s-preds s-constants s-crt0 \
xgcc$(exeext) cpp$(exeext) cc1$(exeext) $(EXTRA_PASSES) \
$(EXTRA_PARTS) $(EXTRA_PROGRAMS) gcc-cross$(exeext) \
protoize$(exeext) unprotoize$(exeext) \
--- 950,956 ----
genrtl.c genrtl.h gt-*.h gtype-*.h gtype-desc.c gtyp-gen.h


 # Files to be moved away after each stage in building.
! STAGEMOVESTUFF = *$(objext) s-* \
  xgcc$(exeext) cpp$(exeext) cc1$(exeext) $(EXTRA_PASSES) \
  $(EXTRA_PARTS) $(EXTRA_PROGRAMS) gcc-cross$(exeext) \
  protoize$(exeext) unprotoize$(exeext) \
Only in gcc-snapshot/gcc/config/i386: i386.md.patch


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