Hojun-Cho/ww
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ww: import toolchain — C bootstrap + ww-side self-host (phases 0-10)

Browse Source 
C bootstrap (phases 0-9):
  cmd/wwc, cmd/6c, cmd/6a, cmd/6l, cmd/ww, rt, lib/*.

ww-side self-host (phase 10):
  selfhost/cmd/wwc — ww-cgen frontend; bootstrap fixed point.
  selfhost/cmd/6a  — assembler; byte-identical to C 6a (test 991).
  selfhost/cmd/6l  — linker w/ archive (.a) support; byte-identical
                     to C 6l (test 992).
  selfhost/cmd/ww  — driver (build/run/version); byte-identical to
                     C ww (test 993).

make test: 15/15. make bootstrap: ww2.s == ww3.s, ww2.o == ww3.o,
ww2 == ww3 byte-identical, with the full ww-tooled chain.
This commit is contained in:
Hojun-Cho
2026-05-11 02:17:47 +09:00
parent 4c8fc59ca1
commit 1657bdeda3
106 changed files with 35654 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
cmd/6a/main.c Normal file
View File

@@ -0,0 +1,59 @@
/*
* 6a — amd64 assembler driver. Read .s, parse, encode, emit ELF .o.
*/
#include "a.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int
slurp(const char *path, char **buf, u64 *len)
{
FILE *f = fopen(path, "rb");
if (f == NULL) return -1;
fseek(f, 0, SEEK_END);
long n = ftell(f);
fseek(f, 0, SEEK_SET);
if (n < 0) { fclose(f); return -1; }
char *b = malloc((size_t)n + 1);
if (fread(b, 1, (size_t)n, f) != (size_t)n) { free(b); fclose(f); return -1; }
b[n] = 0;
fclose(f);
*buf = b;
*len = (u64)n;
return 0;
}
int
main(int argc, char **argv)
{
const char *src = NULL;
const char *out = NULL;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "-o") == 0 && i + 1 < argc) out = argv[++i];
else if (argv[i][0] == '-') {
fprintf(stderr, "6a: unknown flag %s\n", argv[i]); return 2;
} else if (src == NULL) src = argv[i];
else { fprintf(stderr, "6a: only one input\n"); return 2; }
}
if (src == NULL || out == NULL) {
fputs("usage: 6a -o file.o file.s\n", stderr);
return 2;
}
char *buf;
u64 len;
if (slurp(src, &buf, &len) < 0) {
fprintf(stderr, "6a: cannot read %s\n", src);
return 1;
}
Asm a;
a_init(&a, src, buf, len);
if (a_parse(&a) != 0) return 1;
if (a_encode(&a) != 0) return 1;
FILE *f = fopen(out, "wb");
if (f == NULL) { fprintf(stderr, "6a: cannot open %s\n", out); return 1; }
int rc = a_emit_elf(&a, f);
fclose(f);
free(buf);
return rc;
}