mirror of
https://github.com/frida/tinycc
synced 2024-12-24 22:16:49 +03:00
tcc: fix -m32/64 & simplify
This cleans up the mess from commit
8f98573658
and preceeding.
- make tcc -m64 work on windows
- execvp on windows returns 0 always, replace by spawnvp
- remove bizarre support for i386-win32-tcc -m64
This commit is contained in:
grischka
parent
5e5e29f8fd
commit
39a07cca58
127
tcc.c
127
tcc.c
@ -34,6 +34,7 @@ static const char *outfile;
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static int do_bench = 0;
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static int gen_deps;
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static const char *deps_outfile;
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static const char *m_option;
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#define TCC_OPTION_HAS_ARG 0x0001
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#define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
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@ -216,78 +217,50 @@ static int expand_args(char ***pargv, const char *str)
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return argc;
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}
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#if defined(TCC_TARGET_X86_64) || defined (TCC_TARGET_I386)
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/* re-execute the i386/x86_64 cross-compilers with tcc -m32/-m64: */
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#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
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#ifdef _WIN32
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#define CAST (const char * const *)
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#include <process.h>
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static int execvp_win32(const char *prog, char **argv)
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{
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int ret = spawnvp(P_NOWAIT, prog, (char const*const*)argv);
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if (-1 == ret)
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return ret;
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cwait(&ret, ret, WAIT_CHILD);
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exit(ret);
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}
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#define execvp execvp_win32
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#endif
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static void exec_other_tcc(TCCState *s, char **argv, const char *optarg)
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{
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char child_path[4096], *child_name; const char *target;
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switch (atoi(optarg)) {
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#ifdef TCC_TARGET_I386
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case 32: break;
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case 64: target = "x86_64";
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#else
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#define CAST (char * const *)
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case 64: break;
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case 32: target = "i386";
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#endif
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#if defined(TCC_TARGET_X86_64)
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#define ARG 32
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#define CHILD "i386"
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#elif defined (TCC_TARGET_I386)
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#define ARG 64
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#define CHILD "x86_64"
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pstrcpy(child_path, sizeof child_path - 40, argv[0]);
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child_name = tcc_basename(child_path);
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strcpy(child_name, target);
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#ifdef TCC_TARGET_PE
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strcat(child_name, "-win32");
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#endif
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static char *ssuffix(const char *oldname, const char sep)
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{
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char *p, *name = tcc_strdup(oldname);
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p = strchr(name, sep);
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if (p)
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return p + 1;
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/* prefix "win32-" when file extension is present */
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if (*tcc_fileextension(name)){
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name = tcc_realloc(name, strlen(oldname + 7));
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sprintf(name, "win32-%s", oldname);
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}
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return name;
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}
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static void exec_other_tcc(TCCState *s, int argc,
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char **argv,const char *optarg, int optind)
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{
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char child_path[4096],child_name[4096];
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char *parent,*child_tcc;
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int opt = atoi(optarg);
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if (strlen(argv[0]) > 4000)
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error("-m%i unsafe path length", ARG);
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switch (opt) {
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case ARG + 1: /* oops we called ourselves */
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error("-m%i cross compiler not installed", ARG);
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strcat(child_name, "-tcc");
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if (strcmp(argv[0], child_path)) {
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if (s->verbose > 0)
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printf("tcc: using '%s'\n", child_name), fflush(stdout);
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execvp(argv[0] = child_path, argv);
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}
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error("'%s' not found", child_name);
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case 0: /* ignore -march etc. */
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break;
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case ARG:
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{
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parent = tcc_basename(argv[0]);
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child_tcc = ssuffix(parent,'-');
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sprintf(child_name, CHILD "-%s", child_tcc);
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tcc_free(child_tcc);
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if (strcmp(parent, child_name)) {
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/* child_path = dirname */
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pstrcpy(child_path, parent - argv[0] + 1, argv[0]);
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child_tcc = strchr(child_path, 0);
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strcpy(child_tcc, child_name);
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if (0 < s->verbose)
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printf("%s -m%i -> %s\n",
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parent, ARG, child_path);
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sprintf(argv[optind],"-m%i", ARG + 1); /* no loop */
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execvp(child_path, CAST argv);
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sprintf(child_tcc,"tcc%s",tcc_fileextension(parent));
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execvp(child_path, CAST argv);
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error("-m%i cross compiler not found", ARG);
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} else error("-m%i unsupported configuration", ARG);
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}
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case 96 ^ ARG : break;
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case 96 ^ (ARG + 1): break;
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default:
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warning("usupported option \"-m%s\"",optarg);
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warning("unsupported option \"-m%s\"", optarg);
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}
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}
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#undef CAST
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#undef ARG
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#undef CHILD
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#endif
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static int parse_args(TCCState *s, int argc, char **argv)
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@ -300,7 +273,7 @@ static int parse_args(TCCState *s, int argc, char **argv)
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was_pthread = 0; /* is set if commandline contains -pthread key */
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optind = 0;
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optind = 1;
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while (optind < argc) {
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r = argv[optind++];
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@ -419,11 +392,9 @@ static int parse_args(TCCState *s, int argc, char **argv)
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case TCC_OPTION_soname:
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s->soname = optarg;
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break;
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#if defined(TCC_TARGET_X86_64) || defined (TCC_TARGET_I386)
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case TCC_OPTION_m:
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exec_other_tcc(s, argc+1, argv-1, optarg, optind);
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m_option = optarg;
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break;
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#endif
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case TCC_OPTION_o:
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multiple_files = 1;
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outfile = optarg;
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@ -458,10 +429,7 @@ static int parse_args(TCCState *s, int argc, char **argv)
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}
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break;
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case TCC_OPTION_v:
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do {
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if (0 == s->verbose++)
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printf("tcc version %s\n", TCC_VERSION);
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} while (*optarg++ == 'v');
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do ++s->verbose; while (*optarg++ == 'v');
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break;
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case TCC_OPTION_f:
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if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported)
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@ -511,7 +479,7 @@ static int parse_args(TCCState *s, int argc, char **argv)
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dynarray_add((void ***)&files, &nb_files, "-lpthread");
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nb_libraries++;
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}
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return optind + 1;
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return optind;
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}
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int main(int argc, char **argv)
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@ -531,14 +499,25 @@ int main(int argc, char **argv)
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nb_libraries = 0;
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reloc_output = 0;
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print_search_dirs = 0;
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m_option = NULL;
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ret = 0;
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optind = parse_args(s, argc - 1, argv + 1);
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optind = parse_args(s, argc, argv);
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#if defined TCC_TARGET_X86_64 || defined TCC_TARGET_I386
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if (m_option)
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exec_other_tcc(s, argv, m_option);
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#endif
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if (print_search_dirs) {
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/* enough for Linux kernel */
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printf("install: %s/\n", s->tcc_lib_path);
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return 0;
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}
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if (s->verbose)
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printf("tcc version %s\n", TCC_VERSION);
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if (optind == 0 || nb_files == 0) {
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if (optind && s->verbose)
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return 0;
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