mk/stage0.mk

   1 # Extract the snapshot host compiler
   2
   3 $(HBIN0_H_$(CFG_BUILD))/:
   4         mkdir -p $@
   5
   6 $(HLIB0_H_$(CFG_BUILD))/:
   7         mkdir -p $@
   8
   9 $(SNAPSHOT_RUSTC_POST_CLEANUP):                                         \
  10                 $(S)src/snapshots.txt                                   \
  11                 $(S)src/etc/get-snapshot.py $(MKFILE_DEPS)              \
  12                 | $(HBIN0_H_$(CFG_BUILD))/
  13
  14         @$(call E, fetch: $@)
  15 #   Note: the variable "SNAPSHOT_FILE" is generally not set, and so
  16 #   we generally only pass one argument to this script.
  17 ifdef CFG_ENABLE_LOCAL_RUST
  18         $(Q)$(S)src/etc/local_stage0.sh $(CFG_BUILD) $(CFG_LOCAL_RUST_ROOT) rustlib
  19 else
  20         $(Q)$(CFG_PYTHON) $(S)src/etc/get-snapshot.py $(CFG_BUILD) $(SNAPSHOT_FILE)
  21 endif
  22         $(Q)touch $@
  23
  24 # For other targets, let the host build the target:
  25
  26 define BOOTSTRAP_STAGE0
  27   # $(1) target to bootstrap
  28   # $(2) stage to bootstrap from
  29   # $(3) target to bootstrap from
  30
  31 $(HBIN0_H_$(1))/:
  32         mkdir -p $@
  33
  34 $(HLIB0_H_$(1))/:
  35         mkdir -p $@
  36
  37 $$(HBIN0_H_$(1))/rustc$$(X_$(1)): \
  38                 $$(TBIN$(2)_T_$(1)_H_$(3))/rustc$$(X_$(1)) \
  39                 | $(HBIN0_H_$(1))/
  40         @$$(call E, cp: $$@)
  41         $$(Q)cp $$< $$@
  42
  43 endef
  44
  45 # Use stage1 to build other architectures: then you don't have to wait
  46 # for stage2, but you get the latest updates to the compiler source.
  47 $(foreach t,$(NON_BUILD_HOST),                                                          \
  48  $(eval $(call BOOTSTRAP_STAGE0,$(t),1,$(CFG_BUILD))))