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build: split cstage/wwstage targets, document bootstrap

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Phase 10 step 8 (delete the C trees) is deferred to v1.0 — until the
compiler stops churning we keep Cstage as the fresh-checkout entry
point. Split the Makefile so the two stages are named, and add
BOOTSTRAP.md describing the cstage → ww1 → ww2 → ww3 fixed-point
flow. PLAN.md gets a status note pointing at it.
This commit is contained in:
Hojun-Cho
2026-05-11 02:36:46 +09:00
parent 1657bdeda3
commit cb57cd795d
3 changed files with 110 additions and 4 deletions
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19
Makefile
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@@ -40,11 +40,22 @@ L6_OBJ = $(L6_SRC:cmd/6l/%.c=$(OBJ)/6l/%.o)
RT_S = rt/start.s rt/syscall.s rt/alloc.s rt/streq.s rt/abort.s
RT_OBJ = $(RT_S:rt/%.s=$(OBJ)/rt/%.o)
BINS = $(BIN)/ww $(BIN)/6c $(BIN)/6a $(BIN)/6l $(BIN)/wwdump \
$(BIN)/wwdump_ww $(BIN)/6a_ww $(BIN)/6l_ww $(BIN)/ww_ww
# Cstage: one-time C bootstrap (see BOOTSTRAP.md). Built by `cc`.
# Goes away at v1.0, replaced by a checked-in stage-0 binary.
CSTAGE_BINS = $(BIN)/ww $(BIN)/6c $(BIN)/6a $(BIN)/6l $(BIN)/wwdump
# Wwstage: ww-rewritten toolchain. Built by Cstage today; will be the
# only toolchain after Phase 10 closeout. Byte-identical to Cstage
# (tests 990-993).
WWSTAGE_BINS = $(BIN)/wwdump_ww $(BIN)/6a_ww $(BIN)/6l_ww $(BIN)/ww_ww
BINS = $(CSTAGE_BINS) $(WWSTAGE_BINS)
LIBS = $(LIB)/libwwc.a $(LIB)/libwwrt.a
all: $(BINS) $(LIBS)
all: cstage wwstage
cstage: $(CSTAGE_BINS) $(LIBS)
wwstage: $(WWSTAGE_BINS)
# ---- libwwc.a ----------------------------------------------------------
$(LIB)/libwwc.a: $(WWC_OBJ) | $(LIB)
@@ -266,4 +277,4 @@ bootstrap: all
@echo " - cmd/6l/ : ww-6l (linker w/ archive support) — byte-identical to C 6l (test 992)"
@echo " - cmd/ww/ : ww-driver (build/run/version) — byte-identical to C ww (test 993)"
.PHONY: all test install clean bootstrap
.PHONY: all cstage wwstage test install clean bootstrap