Hi,
When i "configured" binutils in a directory separate to the source directory, it
generates a 11500 line Makefile containing the following fragment.
Down the bottom it does:
$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage1;
but "all-stage1" is not in the Makefile. I think it's got something to do with:
stage:
@: $(MAKE); $(stage)
but i don't understand the description below of what that does.
Fragment:
# -
# GCC bootstrap support
# -
# We track the current stage (the one in 'gcc') in the stage_current file.
# stage_last instead tracks the stage that was built last. These targets
# are dummy when toplevel bootstrap is not active.
# While making host and target tools, symlinks to the final stage must be
# there, so $(unstage) should be run at various points. To avoid excessive
# recursive invocations of make, we "inline" them using a variable. These
# must be referenced as ": $(MAKE) ; $(unstage)" rather than "$(unstage)"
# to avoid warnings from the GNU Make job server.
unstage = :
stage = :
current_stage = ""
.PHONY: unstage stage
unstage:
@: $(MAKE); $(unstage)
stage:
@: $(MAKE); $(stage)
# Disable commands for lean bootstrap.
LEAN = false
# We name the build directories for the various stages "stage1-gcc",
# "stage2-gcc","stage3-gcc", etc.
# Since the 'compare' process will fail (on debugging information) if any
# directory names are different, we need to link the gcc directory for
# the previous stage to a constant name ('prev-gcc'), and to make the name of
# the build directories constant as well. For the latter, we use naked names
# like 'gcc', because the scripts in that directory assume it. We use
# mv on platforms where symlinks to directories do not work or are not
# reliable.
# 'touch' doesn't work right on some platforms.
STAMP = echo timestamp >
# We only want to compare .o files, so set this!
objext = .o
.PHONY: stage1-start stage1-end
stage1-start::
@: $(MAKE); $(stage); \
echo stage1 > stage_current ; \
echo stage1 > stage_last; \
$(SHELL) $(srcdir)/mkinstalldirs $(HOST_SUBDIR)
@cd $(HOST_SUBDIR); [ -d stage1-bfd ] || \
mkdir stage1-bfd; \
mv stage1-bfd bfd
@cd $(HOST_SUBDIR); [ -d stage1-opcodes ] || \
mkdir stage1-opcodes; \
mv stage1-opcodes opcodes
@cd $(HOST_SUBDIR); [ -d stage1-binutils ] || \
mkdir stage1-binutils; \
mv stage1-binutils binutils
@cd $(HOST_SUBDIR); [ -d stage1-gas ] || \
mkdir stage1-gas; \
mv stage1-gas gas
@cd $(HOST_SUBDIR); [ -d stage1-intl ] || \
mkdir stage1-intl; \
mv stage1-intl intl
@cd $(HOST_SUBDIR); [ -d stage1-ld ] || \
mkdir stage1-ld; \
mv stage1-ld ld
@cd $(HOST_SUBDIR); [ -d stage1-libiberty ] || \
mkdir stage1-libiberty; \
mv stage1-libiberty libiberty
@[ -d stage1-$(TARGET_SUBDIR) ] || \
mkdir stage1-$(TARGET_SUBDIR); \
mv stage1-$(TARGET_SUBDIR) $(TARGET_SUBDIR)
stage1-end::
@if test -d $(HOST_SUBDIR)/bfd ; then \
cd $(HOST_SUBDIR); mv bfd stage1-bfd ; \
fi
@if test -d $(HOST_SUBDIR)/opcodes ; then \
cd $(HOST_SUBDIR); mv opcodes stage1-opcodes ; \
fi
@if test -d $(HOST_SUBDIR)/binutils ; then \
cd $(HOST_SUBDIR); mv binutils stage1-binutils ; \
fi
@if test -d $(HOST_SUBDIR)/gas ; then \
cd $(HOST_SUBDIR); mv gas stage1-gas ; \
fi
@if test -d $(HOST_SUBDIR)/intl ; then \
cd $(HOST_SUBDIR); mv intl stage1-intl ; \
fi
@if test -d $(HOST_SUBDIR)/ld ; then \
cd $(HOST_SUBDIR); mv ld stage1-ld ; \
fi
@if test -d $(HOST_SUBDIR)/libiberty ; then \
cd $(HOST_SUBDIR); mv libiberty stage1-libiberty ; \
fi
@if test -d $(TARGET_SUBDIR) ; then \
mv $(TARGET_SUBDIR) stage1-$(TARGET_SUBDIR) ; \
fi
rm -f stage_current
# Bubble a bug fix through all the stages up to stage 1. They are
# remade, but not reconfigured. The next stage (if any) will not be
# reconfigured either.
.PHONY: stage1-bubble
stage1-bubble::
@r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
if test -f stage1-lean ; then \
echo Skipping rebuild of stage1 ; \
else \
$(MAKE) stage1-start; \
$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage1; \
fi
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