diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 68 |
1 files changed, 50 insertions, 18 deletions
diff --git a/main.c b/main.c index 4d2e6bd..6098dee 100644 --- a/main.c +++ b/main.c @@ -3,6 +3,18 @@ #include <ctype.h> #include <getopt.h> +Target T; + +extern Target T_amd64_sysv; + +static struct TMap { + char *name; + Target *T; +} tmap[] = { + { "amd64_sysv", &T_amd64_sysv }, + { 0, 0 } +}; + enum Asm { Gasmacho, Gaself, @@ -33,7 +45,7 @@ data(Dat *d) fputs("/* end data */\n\n", outf); freeall(); } - emitdat(d, outf); + gasemitdat(d, outf); } static void @@ -62,10 +74,10 @@ func(Fn *fn) copy(fn); filluse(fn); fold(fn); - abi(fn); + T.abi(fn); fillpreds(fn); filluse(fn); - isel(fn); + T.isel(fn); fillrpo(fn); filllive(fn); fillcost(fn); @@ -83,7 +95,7 @@ func(Fn *fn) } else fn->rpo[n]->link = fn->rpo[n+1]; if (!dbg) { - emitfn(fn, outf); + T.emitfn(fn, outf); fprintf(outf, "/* end function %s */\n\n", fn->name); } else fprintf(stderr, "\n"); @@ -93,13 +105,15 @@ func(Fn *fn) int main(int ac, char *av[]) { - FILE *inf; - char *f; + struct TMap *tm; + FILE *inf, *hf; + char *f, *sep; int c, asm; - asm = Defaultasm; + asm = Defasm; + T = Deftgt; outf = stdout; - while ((c = getopt(ac, av, "hd:o:G:")) != -1) + while ((c = getopt(ac, av, "hd:o:G:t:")) != -1) switch (c) { case 'd': for (; *optarg; optarg++) @@ -112,6 +126,18 @@ main(int ac, char *av[]) if (strcmp(optarg, "-") != 0) outf = fopen(optarg, "w"); break; + case 't': + for (tm=tmap;; tm++) { + if (!tm->name) { + fprintf(stderr, "unknown target '%s'\n", optarg); + exit(1); + } + if (strcmp(optarg, tm->name) == 0) { + T = *tm->T; + break; + } + } + break; case 'G': if (strcmp(optarg, "e") == 0) asm = Gaself; @@ -124,22 +150,28 @@ main(int ac, char *av[]) break; case 'h': default: - fprintf(stderr, "%s [OPTIONS] {file.ssa, -}\n", av[0]); - fprintf(stderr, "\t%-10s prints this help\n", "-h"); - fprintf(stderr, "\t%-10s output to file\n", "-o file"); - fprintf(stderr, "\t%-10s generate gas (e) or osx (m) asm\n", "-G {e,m}"); - fprintf(stderr, "\t%-10s dump debug information\n", "-d <flags>"); + hf = c != 'h' ? stderr : stdout; + fprintf(hf, "%s [OPTIONS] {file.ssa, -}\n", av[0]); + fprintf(hf, "\t%-11s prints this help\n", "-h"); + fprintf(hf, "\t%-11s output to file\n", "-o file"); + fprintf(hf, "\t%-11s generate for a target among:\n", "-t <target>"); + fprintf(hf, "\t%-11s ", ""); + for (tm=tmap, sep=""; tm->name; tm++, sep=", ") + fprintf(hf, "%s%s", sep, tm->name); + fprintf(hf, "\n"); + fprintf(hf, "\t%-11s generate gas (e) or osx (m) asm\n", "-G {e,m}"); + fprintf(hf, "\t%-11s dump debug information\n", "-d <flags>"); exit(c != 'h'); } switch (asm) { case Gaself: - locprefix = ".L"; - symprefix = ""; + gasloc = ".L"; + gassym = ""; break; case Gasmacho: - locprefix = "L"; - symprefix = "_"; + gasloc = "L"; + gassym = "_"; break; } @@ -159,7 +191,7 @@ main(int ac, char *av[]) } while (++optind < ac); if (!dbg) - emitfin(outf); + gasemitfin(outf); exit(0); } |