test: 995_self_rebuild — wwstage rebuilds itself byte-identical

Drives ww_ww (which already shells to 6c_ww/6a_ww/6l_ww) over each
wwstage tool's source and diffs the resulting binary against the
cstage-built canonical in $BIN. A green run means the toolchain
can recompile itself end-to-end without invoking cc, modulo the
cold-start binary that brings the wwstage into existence.

Stricter than `make bootstrap`: that loop pins wwdump's cgen
self-stabilising; this pins all five wwstage tools (6c, 6a, 6l,
ww, wwdump) round-tripping through the wwstage pipeline.

The .combined.ww refreshes are the expander picking up the
parser/cgen changes from the prior commit. selfhost/cmd/6c/
gains its main.combined.ww for the first time — 995 builds it,
994 reads it.
This commit is contained in:
2026-05-11 11:41:12 +09:00
parent af8836cc8e
commit 37bffa5284
6 changed files with 7108 additions and 18 deletions

View File

@@ -188,7 +188,7 @@ TESTS = $(BIN)/test_smoke $(BIN)/test_lex $(BIN)/test_parse $(BIN)/test_check \
$(BIN)/test_6c $(BIN)/test_6a $(BIN)/test_6l $(BIN)/test_arch \
$(BIN)/test_e2e $(BIN)/test_ffi $(BIN)/test_dyn $(BIN)/test_stdlib \
$(BIN)/test_selfhost $(BIN)/test_6a_ww $(BIN)/test_6l_ww \
$(BIN)/test_6c_ww $(BIN)/test_ww_ww
$(BIN)/test_6c_ww $(BIN)/test_ww_ww $(BIN)/test_self_rebuild
$(BIN)/test_smoke: test/wwc/000_smoke.c $(LIB)/libwwc.a | $(BIN)
$(CC) $(CFLAGS) $(INCS) -o $@ $< -L$(LIB) -lwwc
@@ -247,6 +247,11 @@ $(BIN)/test_ww_ww: test/wwc/993_ww_ww.c $(BIN)/ww $(BIN)/ww_ww \
$(BIN)/6c $(BIN)/6a $(BIN)/6l $(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
$(BIN)/test_self_rebuild: test/wwc/995_self_rebuild.c $(BIN)/ww_ww \
$(BIN)/6c_ww $(BIN)/6a_ww $(BIN)/6l_ww $(BIN)/wwdump_ww \
$(LIB)/libwwrt.a | $(BIN)
$(CC) $(CFLAGS) -o $@ $<
test: all $(TESTS)
@WW=$(BIN)/ww BIN=$(BIN) sh test/run