mk/stage0.mk

   1 # Extract the snapshot host compiler
   2
   3 $(HBIN0_H_$(CFG_BUILD))/:
   4         mkdir -p $@
   5
   6 # On windows these two are the same, so cause a redifinition warning
   7 ifneq ($(HBIN0_H_$(CFG_BUILD)),$(HLIB0_H_$(CFG_BUILD)))
   8 $(HLIB0_H_$(CFG_BUILD))/:
   9         mkdir -p $@
  10 endif
  11
  12 $(SNAPSHOT_RUSTC_POST_CLEANUP): \
  13                 $(S)src/stage0.txt \
  14                 $(S)src/etc/local_stage0.sh \
  15                 $(S)src/etc/get-stage0.py $(MKFILE_DEPS) \
  16                 | $(HBIN0_H_$(CFG_BUILD))/
  17         @$(call E, fetch: $@)
  18 ifdef CFG_ENABLE_LOCAL_RUST
  19         $(Q)$(S)src/etc/local_stage0.sh $(CFG_BUILD) $(CFG_LOCAL_RUST_ROOT) rustlib
  20 else
  21         $(Q)$(CFG_PYTHON) $(S)src/etc/get-stage0.py $(CFG_BUILD)
  22 endif
  23         $(Q)if [ -e "$@" ]; then touch "$@"; else echo "ERROR: snapshot $@ not found"; exit 1; fi
  24
  25 # For other targets, let the host build the target:
  26
  27 define BOOTSTRAP_STAGE0
  28   # $(1) target to bootstrap
  29   # $(2) stage to bootstrap from
  30   # $(3) target to bootstrap from
  31
  32 $(HBIN0_H_$(1))/:
  33         mkdir -p $@
  34
  35 $(HLIB0_H_$(1))/:
  36         mkdir -p $@
  37
  38 $$(HBIN0_H_$(1))/rustc$$(X_$(1)): \
  39                 $$(TBIN$(2)_T_$(1)_H_$(3))/rustc$$(X_$(1)) \
  40                 | $(HBIN0_H_$(1))/
  41         @$$(call E, cp: $$@)
  42         $$(Q)cp $$< $$@
  43
  44 endef
  45
  46 # Use stage1 to build other architectures: then you don't have to wait
  47 # for stage2, but you get the latest updates to the compiler source.
  48 $(foreach t,$(NON_BUILD_HOST), \
  49  $(eval $(call BOOTSTRAP_STAGE0,$(t),1,$(CFG_BUILD))))