build: embed images with #embed, keep everything generated in build/

the cores take their genome in with c23 #embed through src/core/genome.h,
so images are plain little-endian word files (genome.bin) instead of
generated c headers. zc0 writes that format, mkgenome checks an image
against its map and shows a compiler's diagnostics when it gets them,
and the javascript vm and the editor's vm host read the same files.
src/tools/findcc.sh picks a compiler with #embed (clang 19 or gcc 15).

zc gets an embed declaration, embed "file" as [type] name, for globals
and locals: a byte string by default, char*, numbers read little-endian,
and arrays of numbers. the compiler and language server carry their
library and source texts through it, so embed.sh and the text it
spliced into compiler.zc are gone.

make writes executables to build/bin, the default map to build/core/map,
the web page to build/web and the extension staging to build/vsix, and
the genome now rebuilds when its sources change. the test suite lays
out its own map and bootstrap and reads nothing from build/.

also: rt.put_s of a byte string in zc0 images, retained function
sources no longer count as live objects, a missing include no longer
cascades into undefined-name errors, consecutive comment lines join
into one hover paragraph, and stale test fixtures follow the include
format.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/tools/zcc b/src/tools/zcc
index 3fb8f0c..ba38e97 100755
--- a/src/tools/zcc
+++ b/src/tools/zcc
@@ -8,7 +8,7 @@
 #
 # -o OUT    the binary to write (default: FILE without .zc)
 # -k        keep the build directory and print where it is
-# CC        the C compiler (default cc). CFLAGS adds to the default -O2
+# CC        the C compiler, one with c23 #embed (default: src/tools/findcc.sh). CFLAGS adds to -O2
 #
 # the build is three steps: automap sizes the map to the program and writes the
 # genome (the compiled program image) for it; the micro core and its linux port
@@ -16,13 +16,13 @@
 # the same image without the static link.
 set -e
 here="$(cd "$(dirname "$0")/../.." && pwd)"
-CC=${CC:-cc}
+CC=${CC:-$(sh "$here/src/tools/findcc.sh")}
 out=""; keep=0
 while [ $# -gt 0 ]; do
 	case "$1" in
 		-o) [ $# -ge 2 ] || { echo "zcc: -o needs a name" >&2; exit 2; }; out="$2"; shift 2 ;;
 		-k) keep=1; shift ;;
-		-h|--help) printf '%s\n' 'usage: src/tools/zcc [-o OUT] [-k] FILE.zc' 'compiles a source file into a standalone binary; links statically where supported.' 'options:' '  -o OUT      output binary path; defaults to the source basename without .zc' '  -k          keep the temporary build directory' '  --help, -h  show this help and exit' 'environment: CC selects the c compiler; CFLAGS adds compiler flags.'; exit 0 ;;
+		-h|--help) printf '%s\n' 'usage: src/tools/zcc [-o OUT] [-k] FILE.zc' 'compiles a source file into a standalone binary; links statically where supported.' 'options:' '  -o OUT      output binary path; defaults to the source basename without .zc' '  -k          keep the temporary build directory' '  --help, -h  show this help and exit' 'environment: CC selects the c compiler (one with #embed); CFLAGS adds compiler flags.'; exit 0 ;;
 		-*) echo "zcc: unknown option $1" >&2; exit 2 ;;
 		*) break ;;
 	esac
@@ -41,7 +41,7 @@ trap cleanup EXIT
 # the map and the genome for this program only
 ( cd "$here" && bash src/tools/automap.sh run "$work/run" src/runtime/run.zc "$abs" ) >/dev/null
 cp "$here/src/micro/micro.c" "$here/src/micro/micro_port.h" "$here/src/micro/port_linux.c" \
-	"$here/src/core/fops.h" "$here/src/core/bops.h" "$here/src/core/stack.h" "$work/run/"
+	"$here/src/core/fops.h" "$here/src/core/bops.h" "$here/src/core/stack.h" "$here/src/core/genome.h" "$work/run/"
 
 # static where the toolchain allows it; a plain link otherwise, with a note
 static=-static