Hojun-Cho
2c33228b7e
Plan 9-style w-prefix on the per-arch tools, disambiguating from the
real Plan 9 6c/6a/6l in ref/plan9front/:
cmd/wwc/ → cmd/wcc/ libwwc.a → libwcc.a
cmd/6{c,a,l} → cmd/w6{c,a,l} binary names too
test/wwc/ → test/wcc/ 6 test files w/ w6 prefix
selfhost/cmd mirror in lockstep
bootstrap/amd64/{w6c,w6a,w6l} snapshot binaries (gitignored)
WW_6{C,A,L} → WW_W6{C,A,L} env-var overrides
Plan 9 source-tree refs ("Plan 9 6c shape", ref/plan9front/, etc.)
preserved. Hare-style driver, both C and ww sides:
ww test [path] discover *_test.ww in a directory module, run
each; single-file mode for `ww test foo.ww`
Module-by-name `ww build foo` resolves to foo.ww or foo/foo.ww
via search path (cwd : -I dirs : $WW_LIB)
Default-to-cwd `ww build` / `ww test` build the cwd module
Run pass-through `ww run path arg1 arg2` reaches the program
lib/os: getcwd (79) and getdents64 (217) syscalls power `.` resolution
and directory enumeration on the ww side.
Makefile: wwstage tool deps now include lib/os/os.ww (+ lib/strconv
for wwdump_ww) so lib/* edits force their rebuild instead of leaving
stale binaries — surfaced when test 995 first failed against a stale
w6c_ww built before the lib/os additions.
Test 993 byte-identical parity gate (C-side ww vs ww-side ww_ww on a
build corpus) stays green; all 19 tests pass.
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* gc.h — w6c-private header: Prog/Adr structs, scratch register set,
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* stack-frame state. Plan 9 cmd/6c/gc.h shape, trimmed.
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*/
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#ifndef SIX_GC_H
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#define SIX_GC_H
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#include "ww.h"
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#include "6.out.h"
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typedef struct Prog Prog;
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typedef struct Adr Adr;
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/* one operand: register, immediate, indirect, or symbolic. */
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struct Adr {
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int type; /* D_AX, D_CONST, D_INDIR, ... */
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int reg; /* base register for D_INDIR */
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long long offset; /* immediate value or memory displacement */
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const char *sym; /* symbol name for D_EXTERN/D_BRANCH */
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};
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struct Prog {
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int as; /* opcode (A_MOVQ, ...) */
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Adr from; /* source operand */
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Adr to; /* destination operand (Plan 9 order) */
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int line;
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const char *label; /* if non-NULL, this prog is preceded by label: */
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Prog *link;
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};
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/* per-fn codegen state */
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typedef struct Cg Cg;
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struct Cg {
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Arena *a;
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Prog *head, *tail;
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const char *fnname;
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int framesize; /* bytes of locals; 16-byte aligned */
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int curoff; /* current top of locals */
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Scope *locals; /* (name → offset) tracked via Sym */
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int labelseq;
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};
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/* cgen.c */
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void cg_init(Cg*, Arena*);
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void cg_file(Cg*, FILE *out, Node *file);
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Prog *newprog(Cg*, int op);
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void emit(Cg*, Prog*);
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/* txt.c */
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void txt_emit(FILE*, Prog *head);
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/* swt.c, peep.c, reg.c — placeholders for now */
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void peephole(Cg*);
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void regalloc_init(Cg*);
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#endif
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