Subversion Repositories Kolibri OS

Rev

Rev 6460 | Rev 8154 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  *  TCC - Tiny C Compiler
  3.  *
  4.  *  Copyright (c) 2001-2004 Fabrice Bellard
  5.  *
  6.  * This library is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2 of the License, or (at your option) any later version.
  10.  *
  11.  * This library is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with this library; if not, write to the Free Software
  18.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19.  */
  20.  
  21. #include "tcc.h"
  22.  
  23. /********************************************************/
  24. /* global variables */
  25.  
  26. /* use GNU C extensions */
  27. ST_DATA int gnu_ext = 1;
  28.  
  29. /* use TinyCC extensions */
  30. ST_DATA int tcc_ext = 1;
  31.  
  32. /* XXX: get rid of this ASAP */
  33. ST_DATA struct TCCState *tcc_state;
  34.  
  35. /********************************************************/
  36.  
  37. #ifdef ONE_SOURCE
  38. #include "tccpp.c"
  39. #include "tccgen.c"
  40. #include "tccelf.c"
  41. #ifdef TCC_IS_NATIVE
  42. # include "tccrun.c"
  43. #endif
  44. #ifdef TCC_TARGET_I386
  45. #include "i386-gen.c"
  46. #endif
  47. #ifdef TCC_TARGET_ARM
  48. #include "arm-gen.c"
  49. #endif
  50. #ifdef TCC_TARGET_ARM64
  51. #include "arm64-gen.c"
  52. #endif
  53. #ifdef TCC_TARGET_C67
  54. #include "c67-gen.c"
  55. #endif
  56. #ifdef TCC_TARGET_X86_64
  57. #include "x86_64-gen.c"
  58. #endif
  59. #ifdef CONFIG_TCC_ASM
  60. #include "tccasm.c"
  61. #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
  62. #include "i386-asm.c"
  63. #endif
  64. #endif
  65. #ifdef TCC_TARGET_COFF
  66. #include "tcccoff.c"
  67. #endif
  68. #if defined(TCC_TARGET_PE) || defined(TCC_TARGET_MEOS)
  69. #include "tccpe.c"
  70. #endif
  71. #ifdef TCC_TARGET_MEOS
  72. #include "tccmeos.c"
  73. #endif
  74.  
  75. #endif /* ONE_SOURCE */
  76.  
  77. /********************************************************/
  78. #ifndef CONFIG_TCC_ASM
  79. ST_FUNC void asm_instr(void)
  80. {
  81.     tcc_error("inline asm() not supported");
  82. }
  83. ST_FUNC void asm_global_instr(void)
  84. {
  85.     tcc_error("inline asm() not supported");
  86. }
  87. #endif
  88.  
  89. /********************************************************/
  90. #ifdef _WIN32
  91. static char *normalize_slashes(char *path)
  92. {
  93.     char *p;
  94.     for (p = path; *p; ++p)
  95.         if (*p == '\\')
  96.             *p = '/';
  97.     return path;
  98. }
  99.  
  100. static HMODULE tcc_module;
  101.  
  102. /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
  103. static void tcc_set_lib_path_w32(TCCState *s)
  104. {
  105.     char path[1024], *p;
  106.     GetModuleFileNameA(tcc_module, path, sizeof path);
  107.     p = tcc_basename(normalize_slashes(strlwr(path)));
  108.     if (p - 5 > path && 0 == strncmp(p - 5, "/bin/", 5))
  109.         p -= 5;
  110.     else if (p > path)
  111.         p--;
  112.     *p = 0;
  113.     tcc_set_lib_path(s, path);
  114. }
  115.  
  116. #ifdef TCC_TARGET_PE
  117. static void tcc_add_systemdir(TCCState *s)
  118. {
  119.     char buf[1000];
  120.     GetSystemDirectory(buf, sizeof buf);
  121.     tcc_add_library_path(s, normalize_slashes(buf));
  122. }
  123. #endif
  124.  
  125. #ifndef CONFIG_TCC_STATIC
  126. void dlclose(void *p)
  127. {
  128.     FreeLibrary((HMODULE)p);
  129. }
  130. #endif
  131.  
  132. #ifdef LIBTCC_AS_DLL
  133. BOOL WINAPI DllMain (HINSTANCE hDll, DWORD dwReason, LPVOID lpReserved)
  134. {
  135.     if (DLL_PROCESS_ATTACH == dwReason)
  136.         tcc_module = hDll;
  137.     return TRUE;
  138. }
  139. #endif
  140. #endif
  141.  
  142. /********************************************************/
  143. /* copy a string and truncate it. */
  144. PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s)
  145. {
  146.     char *q, *q_end;
  147.     int c;
  148.  
  149.     if (buf_size > 0) {
  150.         q = buf;
  151.         q_end = buf + buf_size - 1;
  152.         while (q < q_end) {
  153.             c = *s++;
  154.             if (c == '\0')
  155.                 break;
  156.             *q++ = c;
  157.         }
  158.         *q = '\0';
  159.     }
  160.     return buf;
  161. }
  162.  
  163. /* strcat and truncate. */
  164. PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s)
  165. {
  166.     int len;
  167.     len = strlen(buf);
  168.     if (len < buf_size)
  169.         pstrcpy(buf + len, buf_size - len, s);
  170.     return buf;
  171. }
  172.  
  173. PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num)
  174. {
  175.     memcpy(out, in, num);
  176.     out[num] = '\0';
  177.     return out;
  178. }
  179.  
  180. /* extract the basename of a file */
  181. PUB_FUNC char *tcc_basename(const char *name)
  182. {
  183.     char *p = strchr(name, 0);
  184.     while (p > name && !IS_DIRSEP(p[-1]))
  185.         --p;
  186.     return p;
  187. }
  188.  
  189. /* extract extension part of a file
  190.  *
  191.  * (if no extension, return pointer to end-of-string)
  192.  */
  193. PUB_FUNC char *tcc_fileextension (const char *name)
  194. {
  195.     char *b = tcc_basename(name);
  196.     char *e = strrchr(b, '.');
  197.     return e ? e : strchr(b, 0);
  198. }
  199.  
  200. /********************************************************/
  201. /* memory management */
  202.  
  203. #undef free
  204. #undef malloc
  205. #undef realloc
  206.  
  207. #ifndef MEM_DEBUG
  208.  
  209. PUB_FUNC void tcc_free(void *ptr)
  210. {
  211.     free(ptr);
  212. }
  213.  
  214. PUB_FUNC void *tcc_malloc(unsigned long size)
  215. {
  216.     void *ptr;
  217.     ptr = malloc(size);
  218.     if (!ptr && size)
  219.         tcc_error("memory full (malloc)");
  220.     return ptr;
  221. }
  222.  
  223. PUB_FUNC void *tcc_mallocz(unsigned long size)
  224. {
  225.     void *ptr;
  226.     ptr = tcc_malloc(size);
  227.     memset(ptr, 0, size);
  228.     return ptr;
  229. }
  230.  
  231. PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size)
  232. {
  233.     void *ptr1;
  234.     ptr1 = realloc(ptr, size);
  235.     if (!ptr1 && size)
  236.         tcc_error("memory full (realloc)");
  237.     return ptr1;
  238. }
  239.  
  240. PUB_FUNC char *tcc_strdup(const char *str)
  241. {
  242.     char *ptr;
  243.     ptr = tcc_malloc(strlen(str) + 1);
  244.     strcpy(ptr, str);
  245.     return ptr;
  246. }
  247.  
  248. PUB_FUNC void tcc_memstats(int bench)
  249. {
  250. }
  251.  
  252. #else
  253.  
  254. #define MEM_DEBUG_MAGIC1 0xFEEDDEB1
  255. #define MEM_DEBUG_MAGIC2 0xFEEDDEB2
  256. #define MEM_DEBUG_FILE_LEN 15
  257.  
  258. struct mem_debug_header {
  259.     size_t      magic1;
  260.     size_t      size;
  261.     struct mem_debug_header *prev;
  262.     struct mem_debug_header *next;
  263.     size_t      line_num;
  264.     char        file_name[MEM_DEBUG_FILE_LEN + 1];
  265.     size_t      magic2;
  266. };
  267.  
  268. typedef struct mem_debug_header mem_debug_header_t;
  269.  
  270. static mem_debug_header_t *mem_debug_chain;
  271. static size_t mem_cur_size;
  272. static size_t mem_max_size;
  273.  
  274. PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line)
  275. {
  276.     void *ptr;
  277.     int ofs;
  278.  
  279.     mem_debug_header_t *header;
  280.  
  281.     ptr = malloc(sizeof(mem_debug_header_t) + size);
  282.     if (!ptr)
  283.         tcc_error("memory full (malloc)");
  284.  
  285.     mem_cur_size += size;
  286.     if (mem_cur_size > mem_max_size)
  287.         mem_max_size = mem_cur_size;
  288.  
  289.     header = (mem_debug_header_t *)ptr;
  290.  
  291.     header->magic1 = MEM_DEBUG_MAGIC1;
  292.     header->magic2 = MEM_DEBUG_MAGIC2;
  293.     header->size = size;
  294.     header->line_num = line;
  295.  
  296.     ofs = strlen(file) - MEM_DEBUG_FILE_LEN;
  297.     strncpy(header->file_name, file + (ofs > 0 ? ofs : 0), MEM_DEBUG_FILE_LEN);
  298.     header->file_name[MEM_DEBUG_FILE_LEN] = 0;
  299.  
  300.     header->next = mem_debug_chain;
  301.     header->prev = NULL;
  302.  
  303.     if (header->next)
  304.         header->next->prev = header;
  305.  
  306.     mem_debug_chain = header;
  307.  
  308.     ptr = (char *)ptr + sizeof(mem_debug_header_t);
  309.     return ptr;
  310. }
  311.  
  312. PUB_FUNC void tcc_free_debug(void *ptr)
  313. {
  314.     mem_debug_header_t *header;
  315.  
  316.     if (!ptr)
  317.         return;
  318.  
  319.     ptr = (char *)ptr - sizeof(mem_debug_header_t);
  320.     header = (mem_debug_header_t *)ptr;
  321.     if (header->magic1 != MEM_DEBUG_MAGIC1 ||
  322.         header->magic2 != MEM_DEBUG_MAGIC2 ||
  323.         header->size == (size_t)-1 )
  324.     {
  325.         tcc_error("tcc_free check failed");
  326.     }
  327.  
  328.     mem_cur_size -= header->size;
  329.     header->size = (size_t)-1;
  330.  
  331.     if (header->next)
  332.         header->next->prev = header->prev;
  333.  
  334.     if (header->prev)
  335.         header->prev->next = header->next;
  336.  
  337.     if (header == mem_debug_chain)
  338.         mem_debug_chain = header->next;
  339.  
  340.     free(ptr);
  341. }
  342.  
  343.  
  344. PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line)
  345. {
  346.     void *ptr;
  347.     ptr = tcc_malloc_debug(size,file,line);
  348.     memset(ptr, 0, size);
  349.     return ptr;
  350. }
  351.  
  352. PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line)
  353. {
  354.     mem_debug_header_t *header;
  355.     int mem_debug_chain_update = 0;
  356.  
  357.     if (!ptr) {
  358.         ptr = tcc_malloc_debug(size, file, line);
  359.         return ptr;
  360.     }
  361.  
  362.     ptr = (char *)ptr - sizeof(mem_debug_header_t);
  363.     header = (mem_debug_header_t *)ptr;
  364.     if (header->magic1 != MEM_DEBUG_MAGIC1 ||
  365.         header->magic2 != MEM_DEBUG_MAGIC2 ||
  366.         header->size == (size_t)-1 )
  367.     {
  368.         check_error:
  369.             tcc_error("tcc_realloc check failed");
  370.     }
  371.  
  372.     mem_debug_chain_update = (header == mem_debug_chain);
  373.  
  374.     mem_cur_size -= header->size;
  375.     ptr = realloc(ptr, sizeof(mem_debug_header_t) + size);
  376.     if (!ptr)
  377.         tcc_error("memory full (realloc)");
  378.  
  379.     header = (mem_debug_header_t *)ptr;
  380.     if (header->magic1 != MEM_DEBUG_MAGIC1 ||
  381.         header->magic2 != MEM_DEBUG_MAGIC2)
  382.     {
  383.         goto check_error;
  384.     }
  385.  
  386.     mem_cur_size += size;
  387.     if (mem_cur_size > mem_max_size)
  388.         mem_max_size = mem_cur_size;
  389.  
  390.     header->size = size;
  391.     if (header->next)
  392.         header->next->prev = header;
  393.  
  394.     if (header->prev)
  395.         header->prev->next = header;
  396.  
  397.     if (mem_debug_chain_update)
  398.         mem_debug_chain = header;
  399.  
  400.     ptr = (char *)ptr + sizeof(mem_debug_header_t);
  401.     return ptr;
  402. }
  403.  
  404. PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line)
  405. {
  406.     char *ptr;
  407.     ptr = tcc_malloc_debug(strlen(str) + 1, file, line);
  408.     strcpy(ptr, str);
  409.     return ptr;
  410. }
  411.  
  412. PUB_FUNC void tcc_memstats(int bench)
  413. {
  414.     if (mem_cur_size) {
  415.         mem_debug_header_t *header = mem_debug_chain;
  416.  
  417.         fprintf(stderr, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n",
  418.             mem_cur_size, mem_max_size);
  419.  
  420.         while (header) {
  421.             fprintf(stderr, "  file %s, line %u: %u bytes\n",
  422.                 header->file_name, header->line_num, header->size);
  423.             header = header->next;
  424.         }
  425.     }
  426.     else if (bench)
  427.         fprintf(stderr, "mem_max_size= %d bytes\n", mem_max_size);
  428. }
  429.  
  430. #undef MEM_DEBUG_MAGIC1
  431. #undef MEM_DEBUG_MAGIC2
  432. #undef MEM_DEBUG_FILE_LEN
  433.  
  434. #endif
  435.  
  436. #define free(p) use_tcc_free(p)
  437. #define malloc(s) use_tcc_malloc(s)
  438. #define realloc(p, s) use_tcc_realloc(p, s)
  439.  
  440. /********************************************************/
  441. /* dynarrays */
  442.  
  443. ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data)
  444. {
  445.     int nb, nb_alloc;
  446.     void **pp;
  447.  
  448.     nb = *nb_ptr;
  449.     pp = *ptab;
  450.     /* every power of two we double array size */
  451.     if ((nb & (nb - 1)) == 0) {
  452.         if (!nb)
  453.             nb_alloc = 1;
  454.         else
  455.             nb_alloc = nb * 2;
  456.         pp = tcc_realloc(pp, nb_alloc * sizeof(void *));
  457.         *ptab = pp;
  458.     }
  459.     pp[nb++] = data;
  460.     *nb_ptr = nb;
  461. }
  462.  
  463. ST_FUNC void dynarray_reset(void *pp, int *n)
  464. {
  465.     void **p;
  466.     for (p = *(void***)pp; *n; ++p, --*n)
  467.         if (*p)
  468.             tcc_free(*p);
  469.     tcc_free(*(void**)pp);
  470.     *(void**)pp = NULL;
  471. }
  472.  
  473. static void tcc_split_path(TCCState *s, void ***p_ary, int *p_nb_ary, const char *in)
  474. {
  475.     const char *p;
  476.     do {
  477.         int c;
  478.         CString str;
  479.  
  480.         cstr_new(&str);
  481.         for (p = in; c = *p, c != '\0' && c != PATHSEP; ++p) {
  482.             if (c == '{' && p[1] && p[2] == '}') {
  483.                 c = p[1], p += 2;
  484.                 if (c == 'B')
  485.                     cstr_cat(&str, s->tcc_lib_path, -1);
  486.             } else {
  487.                 cstr_ccat(&str, c);
  488.             }
  489.         }
  490.         cstr_ccat(&str, '\0');
  491.         dynarray_add(p_ary, p_nb_ary, tcc_strdup(str.data));
  492.         cstr_free(&str);
  493.         in = p+1;
  494.     } while (*p);
  495. }
  496.  
  497. /********************************************************/
  498.  
  499. ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags)
  500. {
  501.     Section *sec;
  502.  
  503.     sec = tcc_mallocz(sizeof(Section) + strlen(name));
  504.     strcpy(sec->name, name);
  505.     sec->sh_type = sh_type;
  506.     sec->sh_flags = sh_flags;
  507.     switch(sh_type) {
  508.     case SHT_HASH:
  509.     case SHT_REL:
  510.     case SHT_RELA:
  511.     case SHT_DYNSYM:
  512.     case SHT_SYMTAB:
  513.     case SHT_DYNAMIC:
  514.         sec->sh_addralign = 4;
  515.         break;
  516.     case SHT_STRTAB:
  517.         sec->sh_addralign = 1;
  518.         break;
  519.     default:
  520.         sec->sh_addralign =  PTR_SIZE; /* gcc/pcc default aligment */
  521.         break;
  522.     }
  523.  
  524.     if (sh_flags & SHF_PRIVATE) {
  525.         dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec);
  526.     } else {
  527.         sec->sh_num = s1->nb_sections;
  528.         dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec);
  529.     }
  530.  
  531.     return sec;
  532. }
  533.  
  534. static void free_section(Section *s)
  535. {
  536.     tcc_free(s->data);
  537. }
  538.  
  539. /* realloc section and set its content to zero */
  540. ST_FUNC void section_realloc(Section *sec, unsigned long new_size)
  541. {
  542.     unsigned long size;
  543.     unsigned char *data;
  544.  
  545.     size = sec->data_allocated;
  546.     if (size == 0)
  547.         size = 1;
  548.     while (size < new_size)
  549.         size = size * 2;
  550.     data = tcc_realloc(sec->data, size);
  551.     memset(data + sec->data_allocated, 0, size - sec->data_allocated);
  552.     sec->data = data;
  553.     sec->data_allocated = size;
  554. }
  555.  
  556. /* reserve at least 'size' bytes in section 'sec' from
  557.    sec->data_offset. */
  558. ST_FUNC void *section_ptr_add(Section *sec, addr_t size)
  559. {
  560.     size_t offset, offset1;
  561.  
  562.     offset = sec->data_offset;
  563.     offset1 = offset + size;
  564.     if (offset1 > sec->data_allocated)
  565.         section_realloc(sec, offset1);
  566.     sec->data_offset = offset1;
  567.     return sec->data + offset;
  568. }
  569.  
  570. /* reserve at least 'size' bytes from section start */
  571. ST_FUNC void section_reserve(Section *sec, unsigned long size)
  572. {
  573.     if (size > sec->data_allocated)
  574.         section_realloc(sec, size);
  575.     if (size > sec->data_offset)
  576.         sec->data_offset = size;
  577. }
  578.  
  579. /* return a reference to a section, and create it if it does not
  580.    exists */
  581. ST_FUNC Section *find_section(TCCState *s1, const char *name)
  582. {
  583.     Section *sec;
  584.     int i;
  585.     for(i = 1; i < s1->nb_sections; i++) {
  586.         sec = s1->sections[i];
  587.         if (!strcmp(name, sec->name))
  588.             return sec;
  589.     }
  590.     /* sections are created as PROGBITS */
  591.     return new_section(s1, name, SHT_PROGBITS, SHF_ALLOC);
  592. }
  593.  
  594. /* update sym->c so that it points to an external symbol in section
  595.    'section' with value 'value' */
  596. ST_FUNC void put_extern_sym2(Sym *sym, Section *section,
  597.                             addr_t value, unsigned long size,
  598.                             int can_add_underscore)
  599. {
  600.     int sym_type, sym_bind, sh_num, info, other;
  601.     ElfW(Sym) *esym;
  602.     const char *name;
  603.     char buf1[256];
  604.  
  605. #ifdef CONFIG_TCC_BCHECK
  606.     char buf[32];
  607. #endif
  608.  
  609.     if (section == NULL)
  610.         sh_num = SHN_UNDEF;
  611.     else if (section == SECTION_ABS)
  612.         sh_num = SHN_ABS;
  613.     else
  614.         sh_num = section->sh_num;
  615.  
  616.     if ((sym->type.t & VT_BTYPE) == VT_FUNC) {
  617.         sym_type = STT_FUNC;
  618.     } else if ((sym->type.t & VT_BTYPE) == VT_VOID) {
  619.         sym_type = STT_NOTYPE;
  620.     } else {
  621.         sym_type = STT_OBJECT;
  622.     }
  623.  
  624.     if (sym->type.t & VT_STATIC)
  625.         sym_bind = STB_LOCAL;
  626.     else {
  627.         if (sym->type.t & VT_WEAK)
  628.             sym_bind = STB_WEAK;
  629.         else
  630.             sym_bind = STB_GLOBAL;
  631.     }
  632.  
  633.     if (!sym->c) {
  634.         name = get_tok_str(sym->v, NULL);
  635. #ifdef CONFIG_TCC_BCHECK
  636.         if (tcc_state->do_bounds_check) {
  637.             /* XXX: avoid doing that for statics ? */
  638.             /* if bound checking is activated, we change some function
  639.                names by adding the "__bound" prefix */
  640.             switch(sym->v) {
  641. #ifdef TCC_TARGET_PE
  642.             /* XXX: we rely only on malloc hooks */
  643.             case TOK_malloc:
  644.             case TOK_free:
  645.             case TOK_realloc:
  646.             case TOK_memalign:
  647.             case TOK_calloc:
  648. #endif
  649.             case TOK_memcpy:
  650.             case TOK_memmove:
  651.             case TOK_memset:
  652.             case TOK_strlen:
  653.             case TOK_strcpy:
  654.             case TOK_alloca:
  655.                 strcpy(buf, "__bound_");
  656.                 strcat(buf, name);
  657.                 name = buf;
  658.                 break;
  659.             }
  660.         }
  661. #endif
  662.         other = 0;
  663.  
  664. #ifdef TCC_TARGET_PE
  665.         if (sym->type.t & VT_EXPORT)
  666.             other |= ST_PE_EXPORT;
  667.         if (sym_type == STT_FUNC && sym->type.ref) {
  668.             Sym *ref = sym->type.ref;
  669.             if (ref->a.func_export)
  670.                 other |= ST_PE_EXPORT;
  671.             if (ref->a.func_call == FUNC_STDCALL && can_add_underscore) {
  672.                 sprintf(buf1, "_%s@%d", name, ref->a.func_args * PTR_SIZE);
  673.                 name = buf1;
  674.                 other |= ST_PE_STDCALL;
  675.                 can_add_underscore = 0;
  676.             }
  677.         } else {
  678.             if (find_elf_sym(tcc_state->dynsymtab_section, name))
  679.                 other |= ST_PE_IMPORT;
  680.             if (sym->type.t & VT_IMPORT)
  681.                 other |= ST_PE_IMPORT;
  682.         }
  683. #else
  684.         if (! (sym->type.t & VT_STATIC))
  685.             other = (sym->type.t & VT_VIS_MASK) >> VT_VIS_SHIFT;
  686. #endif
  687.         if (tcc_state->leading_underscore && can_add_underscore) {
  688.             buf1[0] = '_';
  689.             pstrcpy(buf1 + 1, sizeof(buf1) - 1, name);
  690.             name = buf1;
  691.         }
  692.         if (sym->asm_label) {
  693.             name = get_tok_str(sym->asm_label, NULL);
  694.         }
  695.         info = ELFW(ST_INFO)(sym_bind, sym_type);
  696.         sym->c = add_elf_sym(symtab_section, value, size, info, other, sh_num, name);
  697.     } else {
  698.         esym = &((ElfW(Sym) *)symtab_section->data)[sym->c];
  699.         esym->st_value = value;
  700.         esym->st_size = size;
  701.         esym->st_shndx = sh_num;
  702.     }
  703. }
  704.  
  705. ST_FUNC void put_extern_sym(Sym *sym, Section *section,
  706.                            addr_t value, unsigned long size)
  707. {
  708.     put_extern_sym2(sym, section, value, size, 1);
  709. }
  710.  
  711. /* add a new relocation entry to symbol 'sym' in section 's' */
  712. ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type,
  713.                      addr_t addend)
  714. {
  715.     int c = 0;
  716.     if (sym) {
  717.         if (0 == sym->c)
  718.             put_extern_sym(sym, NULL, 0, 0);
  719.         c = sym->c;
  720.     }
  721.     /* now we can add ELF relocation info */
  722.     put_elf_reloca(symtab_section, s, offset, type, c, addend);
  723. }
  724.  
  725. ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type)
  726. {
  727.     greloca(s, sym, offset, type, 0);
  728. }
  729.  
  730. /********************************************************/
  731.  
  732. static void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap)
  733. {
  734.     int len;
  735.     len = strlen(buf);
  736.     vsnprintf(buf + len, buf_size - len, fmt, ap);
  737. }
  738.  
  739. static void strcat_printf(char *buf, int buf_size, const char *fmt, ...)
  740. {
  741.     va_list ap;
  742.     va_start(ap, fmt);
  743.     strcat_vprintf(buf, buf_size, fmt, ap);
  744.     va_end(ap);
  745. }
  746.  
  747. static void error1(TCCState *s1, int is_warning, const char *fmt, va_list ap)
  748. {
  749.     char buf[2048];
  750.     BufferedFile **pf, *f;
  751.  
  752.     buf[0] = '\0';
  753.     /* use upper file if inline ":asm:" or token ":paste:" */
  754.     for (f = file; f && f->filename[0] == ':'; f = f->prev)
  755.      ;
  756.     if (f) {
  757.         for(pf = s1->include_stack; pf < s1->include_stack_ptr; pf++)
  758.             strcat_printf(buf, sizeof(buf), "In file included from %s:%d:\n",
  759.                 (*pf)->filename, (*pf)->line_num);
  760.         if (f->line_num > 0) {
  761.             strcat_printf(buf, sizeof(buf), "%s:%d: ",
  762.                 f->filename, f->line_num);
  763.         } else {
  764.             strcat_printf(buf, sizeof(buf), "%s: ",
  765.                 f->filename);
  766.         }
  767.     } else {
  768.         strcat_printf(buf, sizeof(buf), "tcc: ");
  769.     }
  770.     if (is_warning)
  771.         strcat_printf(buf, sizeof(buf), "warning: ");
  772.     else
  773.         strcat_printf(buf, sizeof(buf), "error: ");
  774.     strcat_vprintf(buf, sizeof(buf), fmt, ap);
  775.  
  776.     if (!s1->error_func) {
  777.         /* default case: stderr */
  778.         if (s1->ppfp) /* print a newline during tcc -E */
  779.             fprintf(s1->ppfp, "\n"), fflush(s1->ppfp);
  780. #ifndef TCC_TARGET_MEOS
  781.         fprintf(stderr, "%s\n", buf);
  782.         fflush(stderr); /* print error/warning now (win32) */
  783. #else
  784.         fprintf(stdout, "%s\n", buf);
  785.         fflush(stdout); /* print error/warning now (win32) */
  786. #endif
  787.     } else {
  788.         s1->error_func(s1->error_opaque, buf);
  789.     }
  790.     if (!is_warning || s1->warn_error)
  791.         s1->nb_errors++;
  792. }
  793.  
  794. LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque,
  795.                         void (*error_func)(void *opaque, const char *msg))
  796. {
  797.     s->error_opaque = error_opaque;
  798.     s->error_func = error_func;
  799. }
  800.  
  801. /* error without aborting current compilation */
  802. PUB_FUNC void tcc_error_noabort(const char *fmt, ...)
  803. {
  804.     TCCState *s1 = tcc_state;
  805.     va_list ap;
  806.  
  807.     va_start(ap, fmt);
  808.     error1(s1, 0, fmt, ap);
  809.     va_end(ap);
  810. }
  811.  
  812. PUB_FUNC void tcc_error(const char *fmt, ...)
  813. {
  814.     TCCState *s1 = tcc_state;
  815.     va_list ap;
  816.  
  817.     va_start(ap, fmt);
  818.     error1(s1, 0, fmt, ap);
  819.     va_end(ap);
  820.     /* better than nothing: in some cases, we accept to handle errors */
  821.     if (s1->error_set_jmp_enabled) {
  822.         longjmp(s1->error_jmp_buf, 1);
  823.     } else {
  824.         /* XXX: eliminate this someday */
  825.         exit(1);
  826.     }
  827. }
  828.  
  829. PUB_FUNC void tcc_warning(const char *fmt, ...)
  830. {
  831.     TCCState *s1 = tcc_state;
  832.     va_list ap;
  833.  
  834.     if (s1->warn_none)
  835.         return;
  836.  
  837.     va_start(ap, fmt);
  838.     error1(s1, 1, fmt, ap);
  839.     va_end(ap);
  840. }
  841.  
  842. /********************************************************/
  843. /* I/O layer */
  844.  
  845. ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen)
  846. {
  847.     BufferedFile *bf;
  848.     int buflen = initlen ? initlen : IO_BUF_SIZE;
  849.  
  850.     bf = tcc_mallocz(sizeof(BufferedFile) + buflen);
  851.     bf->buf_ptr = bf->buffer;
  852.     bf->buf_end = bf->buffer + initlen;
  853.     bf->buf_end[0] = CH_EOB; /* put eob symbol */
  854.     pstrcpy(bf->filename, sizeof(bf->filename), filename);
  855. #ifdef _WIN32
  856.     normalize_slashes(bf->filename);
  857. #endif
  858.     bf->line_num = 1;
  859.     bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
  860.     bf->fd = -1;
  861.     bf->prev = file;
  862.     file = bf;
  863. }
  864.  
  865. ST_FUNC void tcc_close(void)
  866. {
  867.     BufferedFile *bf = file;
  868.     if (bf->fd > 0) {
  869.         close(bf->fd);
  870.         total_lines += bf->line_num;
  871.     }
  872.     file = bf->prev;
  873.     tcc_free(bf);
  874. }
  875.  
  876. ST_FUNC int tcc_open(TCCState *s1, const char *filename)
  877. {
  878.     int fd;
  879.     if (strcmp(filename, "-") == 0)
  880.         fd = 0, filename = "<stdin>";
  881.     else
  882.         fd = open(filename, O_RDONLY | O_BINARY);
  883.     if ((s1->verbose == 2 && fd >= 0) || s1->verbose == 3)
  884.         printf("%s %*s%s\n", fd < 0 ? "nf":"->",
  885.                (int)(s1->include_stack_ptr - s1->include_stack), "", filename);
  886.     if (fd < 0)
  887.         return -1;
  888.  
  889.     tcc_open_bf(s1, filename, 0);
  890.     file->fd = fd;
  891.     return fd;
  892. }
  893.  
  894. /* compile the C file opened in 'file'. Return non zero if errors. */
  895. static int tcc_compile(TCCState *s1)
  896. {
  897.     Sym *define_start;
  898.     char buf[512];
  899.     volatile int section_sym;
  900.  
  901. #ifdef INC_DEBUG
  902.     printf("%s: **** new file\n", file->filename);
  903. #endif
  904.     preprocess_init(s1);
  905.  
  906.     cur_text_section = NULL;
  907.     funcname = "";
  908.     anon_sym = SYM_FIRST_ANOM;
  909.  
  910.     /* file info: full path + filename */
  911.     section_sym = 0; /* avoid warning */
  912.     if (s1->do_debug) {
  913.         section_sym = put_elf_sym(symtab_section, 0, 0,
  914.                                   ELFW(ST_INFO)(STB_LOCAL, STT_SECTION), 0,
  915.                                   text_section->sh_num, NULL);
  916.         getcwd(buf, sizeof(buf));
  917. #ifdef _WIN32
  918.         normalize_slashes(buf);
  919. #endif
  920.         pstrcat(buf, sizeof(buf), "/");
  921.         put_stabs_r(buf, N_SO, 0, 0,
  922.                     text_section->data_offset, text_section, section_sym);
  923.         put_stabs_r(file->filename, N_SO, 0, 0,
  924.                     text_section->data_offset, text_section, section_sym);
  925.     }
  926.     /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
  927.        symbols can be safely used */
  928.     put_elf_sym(symtab_section, 0, 0,
  929.                 ELFW(ST_INFO)(STB_LOCAL, STT_FILE), 0,
  930.                 SHN_ABS, file->filename);
  931.  
  932.     /* define some often used types */
  933.     int_type.t = VT_INT;
  934.  
  935.     char_pointer_type.t = VT_BYTE;
  936.     mk_pointer(&char_pointer_type);
  937.  
  938. #if PTR_SIZE == 4
  939.     size_type.t = VT_INT;
  940. #else
  941.     size_type.t = VT_LLONG;
  942. #endif
  943.  
  944.     func_old_type.t = VT_FUNC;
  945.     func_old_type.ref = sym_push(SYM_FIELD, &int_type, FUNC_CDECL, FUNC_OLD);
  946. #ifdef TCC_TARGET_ARM
  947.     arm_init(s1);
  948. #endif
  949.  
  950. #if 0
  951.     /* define 'void *alloca(unsigned int)' builtin function */
  952.     {
  953.         Sym *s1;
  954.  
  955.         p = anon_sym++;
  956.         sym = sym_push(p, mk_pointer(VT_VOID), FUNC_CDECL, FUNC_NEW);
  957.         s1 = sym_push(SYM_FIELD, VT_UNSIGNED | VT_INT, 0, 0);
  958.         s1->next = NULL;
  959.         sym->next = s1;
  960.         sym_push(TOK_alloca, VT_FUNC | (p << VT_STRUCT_SHIFT), VT_CONST, 0);
  961.     }
  962. #endif
  963.  
  964.     define_start = define_stack;
  965.     nocode_wanted = 1;
  966.  
  967.     if (setjmp(s1->error_jmp_buf) == 0) {
  968.         s1->nb_errors = 0;
  969.         s1->error_set_jmp_enabled = 1;
  970.  
  971.         ch = file->buf_ptr[0];
  972.         tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
  973.         parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM | PARSE_FLAG_TOK_STR;
  974.         next();
  975.         decl(VT_CONST);
  976.         if (tok != TOK_EOF)
  977.             expect("declaration");
  978.         check_vstack();
  979.  
  980.         /* end of translation unit info */
  981.         if (s1->do_debug) {
  982.             put_stabs_r(NULL, N_SO, 0, 0,
  983.                         text_section->data_offset, text_section, section_sym);
  984.         }
  985.     }
  986.  
  987.     s1->error_set_jmp_enabled = 0;
  988.  
  989.     /* reset define stack, but leave -Dsymbols (may be incorrect if
  990.        they are undefined) */
  991.     free_defines(define_start);
  992.  
  993.     gen_inline_functions();
  994.  
  995.     sym_pop(&global_stack, NULL);
  996.     sym_pop(&local_stack, NULL);
  997.  
  998.     return s1->nb_errors != 0 ? -1 : 0;
  999. }
  1000.  
  1001. LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str)
  1002. {
  1003.     int len, ret;
  1004.  
  1005.     len = strlen(str);
  1006.     tcc_open_bf(s, "<string>", len);
  1007.     memcpy(file->buffer, str, len);
  1008.     ret = tcc_compile(s);
  1009.     tcc_close();
  1010.     return ret;
  1011. }
  1012.  
  1013. /* define a preprocessor symbol. A value can also be provided with the '=' operator */
  1014. LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value)
  1015. {
  1016.     int len1, len2;
  1017.     /* default value */
  1018.     if (!value)
  1019.         value = "1";
  1020.     len1 = strlen(sym);
  1021.     len2 = strlen(value);
  1022.  
  1023.     /* init file structure */
  1024.     tcc_open_bf(s1, "<define>", len1 + len2 + 1);
  1025.     memcpy(file->buffer, sym, len1);
  1026.     file->buffer[len1] = ' ';
  1027.     memcpy(file->buffer + len1 + 1, value, len2);
  1028.  
  1029.     /* parse with define parser */
  1030.     ch = file->buf_ptr[0];
  1031.     next_nomacro();
  1032.     parse_define();
  1033.  
  1034.     tcc_close();
  1035. }
  1036.  
  1037. /* undefine a preprocessor symbol */
  1038. LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym)
  1039. {
  1040.     TokenSym *ts;
  1041.     Sym *s;
  1042.     ts = tok_alloc(sym, strlen(sym));
  1043.     s = define_find(ts->tok);
  1044.     /* undefine symbol by putting an invalid name */
  1045.     if (s)
  1046.         define_undef(s);
  1047. }
  1048.  
  1049. /* cleanup all static data used during compilation */
  1050. static void tcc_cleanup(void)
  1051. {
  1052.     if (NULL == tcc_state)
  1053.         return;
  1054.     tcc_state = NULL;
  1055.  
  1056.     preprocess_delete();
  1057.  
  1058.     /* free sym_pools */
  1059.     dynarray_reset(&sym_pools, &nb_sym_pools);
  1060.     /* reset symbol stack */
  1061.     sym_free_first = NULL;
  1062. }
  1063.  
  1064. LIBTCCAPI TCCState *tcc_new(void)
  1065. {
  1066.     TCCState *s;
  1067.     char buffer[100];
  1068.     int a,b,c;
  1069.  
  1070.     tcc_cleanup();
  1071.  
  1072.     s = tcc_mallocz(sizeof(TCCState));
  1073.     if (!s)
  1074.         return NULL;
  1075.     tcc_state = s;
  1076. #ifdef _WIN32
  1077.     tcc_set_lib_path_w32(s);
  1078. #else
  1079.     tcc_set_lib_path(s, CONFIG_TCCDIR);
  1080. #endif
  1081.     s->output_type = 0;
  1082.     preprocess_new();
  1083.     s->include_stack_ptr = s->include_stack;
  1084.  
  1085.     /* we add dummy defines for some special macros to speed up tests
  1086.        and to have working defined() */
  1087.     define_push(TOK___LINE__, MACRO_OBJ, NULL, NULL);
  1088.     define_push(TOK___FILE__, MACRO_OBJ, NULL, NULL);
  1089.     define_push(TOK___DATE__, MACRO_OBJ, NULL, NULL);
  1090.     define_push(TOK___TIME__, MACRO_OBJ, NULL, NULL);
  1091.  
  1092.     /* define __TINYC__ 92X  */
  1093.     sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c);
  1094.     sprintf(buffer, "%d", a*10000 + b*100 + c);
  1095.     tcc_define_symbol(s, "__TINYC__", buffer);
  1096.  
  1097.     /* standard defines */
  1098.     tcc_define_symbol(s, "__STDC__", NULL);
  1099.     tcc_define_symbol(s, "__STDC_VERSION__", "199901L");
  1100.     tcc_define_symbol(s, "__STDC_HOSTED__", NULL);
  1101.  
  1102.     /* target defines */
  1103. #if defined(TCC_TARGET_I386)
  1104.     tcc_define_symbol(s, "__i386__", NULL);
  1105.     tcc_define_symbol(s, "__i386", NULL);
  1106.     tcc_define_symbol(s, "i386", NULL);
  1107. #elif defined(TCC_TARGET_X86_64)
  1108.     tcc_define_symbol(s, "__x86_64__", NULL);
  1109. #elif defined(TCC_TARGET_ARM)
  1110.     tcc_define_symbol(s, "__ARM_ARCH_4__", NULL);
  1111.     tcc_define_symbol(s, "__arm_elf__", NULL);
  1112.     tcc_define_symbol(s, "__arm_elf", NULL);
  1113.     tcc_define_symbol(s, "arm_elf", NULL);
  1114.     tcc_define_symbol(s, "__arm__", NULL);
  1115.     tcc_define_symbol(s, "__arm", NULL);
  1116.     tcc_define_symbol(s, "arm", NULL);
  1117.     tcc_define_symbol(s, "__APCS_32__", NULL);
  1118.     tcc_define_symbol(s, "__ARMEL__", NULL);
  1119. #if defined(TCC_ARM_EABI)
  1120.     tcc_define_symbol(s, "__ARM_EABI__", NULL);
  1121. #endif
  1122. #if defined(TCC_ARM_HARDFLOAT)
  1123.     s->float_abi = ARM_HARD_FLOAT;
  1124.     tcc_define_symbol(s, "__ARM_PCS_VFP", NULL);
  1125. #else
  1126.     s->float_abi = ARM_SOFTFP_FLOAT;
  1127. #endif
  1128. #elif defined(TCC_TARGET_ARM64)
  1129.     tcc_define_symbol(s, "__aarch64__", NULL);
  1130. #endif
  1131.  
  1132. #ifdef TCC_TARGET_PE
  1133.     tcc_define_symbol(s, "_WIN32", NULL);
  1134. # ifdef TCC_TARGET_X86_64
  1135.     tcc_define_symbol(s, "_WIN64", NULL);
  1136. # endif
  1137. #else
  1138.     tcc_define_symbol(s, "__unix__", NULL);
  1139.     tcc_define_symbol(s, "__unix", NULL);
  1140.     tcc_define_symbol(s, "unix", NULL);
  1141. # if defined(__linux__)
  1142.     tcc_define_symbol(s, "__linux__", NULL);
  1143.     tcc_define_symbol(s, "__linux", NULL);
  1144. # endif
  1145. # if defined(__FreeBSD__)
  1146. #  define str(s) #s
  1147.     tcc_define_symbol(s, "__FreeBSD__", str( __FreeBSD__));
  1148. #  undef str
  1149. # endif
  1150. # if defined(__FreeBSD_kernel__)
  1151.     tcc_define_symbol(s, "__FreeBSD_kernel__", NULL);
  1152. # endif
  1153. #endif
  1154. # if defined(__NetBSD__)
  1155. #  define str(s) #s
  1156.     tcc_define_symbol(s, "__NetBSD__", str( __NetBSD__));
  1157. #  undef str
  1158. # endif
  1159.  
  1160.     /* TinyCC & gcc defines */
  1161. #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
  1162.     tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long");
  1163.     tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long");
  1164. #else
  1165.     tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long");
  1166.     tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long");
  1167. #endif
  1168.  
  1169. #ifdef TCC_TARGET_PE
  1170.     tcc_define_symbol(s, "__WCHAR_TYPE__", "unsigned short");
  1171.     tcc_define_symbol(s, "__WINT_TYPE__", "unsigned short");
  1172. #else
  1173.     tcc_define_symbol(s, "__WCHAR_TYPE__", "int");
  1174.     /* wint_t is unsigned int by default, but (signed) int on BSDs
  1175.        and unsigned short on windows.  Other OSes might have still
  1176.        other conventions, sigh.  */
  1177. #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__NetBSD__)
  1178.     tcc_define_symbol(s, "__WINT_TYPE__", "int");
  1179. #else
  1180.     tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int");
  1181. #endif
  1182. #endif
  1183.  
  1184. #ifndef TCC_TARGET_PE
  1185.     /* glibc defines */
  1186.     tcc_define_symbol(s, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
  1187.     tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
  1188.     /* paths for crt objects */
  1189.     tcc_split_path(s, (void ***)&s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX);
  1190. #endif
  1191.  
  1192.     /* no section zero */
  1193.     dynarray_add((void ***)&s->sections, &s->nb_sections, NULL);
  1194.  
  1195.     /* create standard sections */
  1196.     text_section = new_section(s, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR);
  1197.     data_section = new_section(s, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE);
  1198.     bss_section = new_section(s, ".bss", SHT_NOBITS, SHF_ALLOC | SHF_WRITE);
  1199.  
  1200.     /* symbols are always generated for linking stage */
  1201.     symtab_section = new_symtab(s, ".symtab", SHT_SYMTAB, 0,
  1202.                                 ".strtab",
  1203.                                 ".hashtab", SHF_PRIVATE);
  1204.     strtab_section = symtab_section->link;
  1205.     s->symtab = symtab_section;
  1206.  
  1207.     /* private symbol table for dynamic symbols */
  1208.     s->dynsymtab_section = new_symtab(s, ".dynsymtab", SHT_SYMTAB, SHF_PRIVATE,
  1209.                                       ".dynstrtab",
  1210.                                       ".dynhashtab", SHF_PRIVATE);
  1211.     s->alacarte_link = 1;
  1212.     s->nocommon = 1;
  1213.     s->warn_implicit_function_declaration = 1;
  1214.  
  1215. #ifdef CHAR_IS_UNSIGNED
  1216.     s->char_is_unsigned = 1;
  1217. #endif
  1218.     /* enable this if you want symbols with leading underscore on windows: */
  1219. #if 0 /* def TCC_TARGET_PE */
  1220.     s->leading_underscore = 1;
  1221. #endif
  1222. #if 0 /* TCC_TARGET_MEOS */
  1223.     s->leading_underscore = 1;
  1224. #endif
  1225. #ifdef TCC_TARGET_I386
  1226.     s->seg_size = 32;
  1227. #endif
  1228. #ifdef TCC_IS_NATIVE
  1229.     s->runtime_main = "main";
  1230. #endif
  1231.     return s;
  1232. }
  1233.  
  1234. LIBTCCAPI void tcc_delete(TCCState *s1)
  1235. {
  1236.     int i;
  1237.     int bench = s1->do_bench;
  1238.  
  1239.     tcc_cleanup();
  1240.  
  1241.     /* close a preprocessor output */
  1242.     if (s1->ppfp && s1->ppfp != stdout)
  1243.         fclose(s1->ppfp);
  1244.     if (s1->dffp && s1->dffp != s1->ppfp)
  1245.         fclose(s1->dffp);
  1246.  
  1247.     /* free all sections */
  1248.     for(i = 1; i < s1->nb_sections; i++)
  1249.         free_section(s1->sections[i]);
  1250.     dynarray_reset(&s1->sections, &s1->nb_sections);
  1251.  
  1252.     for(i = 0; i < s1->nb_priv_sections; i++)
  1253.         free_section(s1->priv_sections[i]);
  1254.     dynarray_reset(&s1->priv_sections, &s1->nb_priv_sections);
  1255.  
  1256.     /* free any loaded DLLs */
  1257. #ifdef TCC_IS_NATIVE
  1258.     for ( i = 0; i < s1->nb_loaded_dlls; i++) {
  1259.         DLLReference *ref = s1->loaded_dlls[i];
  1260.         if ( ref->handle )
  1261.             dlclose(ref->handle);
  1262.     }
  1263. #endif
  1264.  
  1265.     /* free loaded dlls array */
  1266.     dynarray_reset(&s1->loaded_dlls, &s1->nb_loaded_dlls);
  1267.  
  1268.     /* free library paths */
  1269.     dynarray_reset(&s1->library_paths, &s1->nb_library_paths);
  1270.     dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths);
  1271.  
  1272.     /* free include paths */
  1273.     dynarray_reset(&s1->cached_includes, &s1->nb_cached_includes);
  1274.     dynarray_reset(&s1->include_paths, &s1->nb_include_paths);
  1275.     dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths);
  1276.  
  1277.     tcc_free(s1->tcc_lib_path);
  1278.     tcc_free(s1->soname);
  1279.     tcc_free(s1->rpath);
  1280.     tcc_free(s1->init_symbol);
  1281.     tcc_free(s1->fini_symbol);
  1282.     tcc_free(s1->outfile);
  1283.     tcc_free(s1->deps_outfile);
  1284.     dynarray_reset(&s1->files, &s1->nb_files);
  1285.     dynarray_reset(&s1->target_deps, &s1->nb_target_deps);
  1286.     dynarray_reset(&s1->pragma_libs, &s1->nb_pragma_libs);
  1287.  
  1288. #ifdef TCC_IS_NATIVE
  1289. # ifdef HAVE_SELINUX
  1290.     munmap (s1->write_mem, s1->mem_size);
  1291.     munmap (s1->runtime_mem, s1->mem_size);
  1292. # else
  1293.     tcc_free(s1->runtime_mem);
  1294. # endif
  1295. #endif
  1296.  
  1297.     tcc_free(s1->sym_attrs);
  1298.     tcc_free(s1);
  1299.     tcc_memstats(bench);
  1300. }
  1301.  
  1302. LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname)
  1303. {
  1304.     tcc_split_path(s, (void ***)&s->include_paths, &s->nb_include_paths, pathname);
  1305.     return 0;
  1306. }
  1307.  
  1308. LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
  1309. {
  1310.     tcc_split_path(s, (void ***)&s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
  1311.     return 0;
  1312. }
  1313.  
  1314. ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype)
  1315. {
  1316.     ElfW(Ehdr) ehdr;
  1317.     int fd, ret, size;
  1318.  
  1319.     parse_flags = 0;
  1320. #ifdef CONFIG_TCC_ASM
  1321.     /* if .S file, define __ASSEMBLER__ like gcc does */
  1322.     if ((filetype == TCC_FILETYPE_ASM) || (filetype == TCC_FILETYPE_ASM_PP)) {
  1323.         tcc_define_symbol(s1, "__ASSEMBLER__", NULL);
  1324.         parse_flags = PARSE_FLAG_ASM_FILE;
  1325.     }
  1326. #endif
  1327.  
  1328.     /* open the file */
  1329.     ret = tcc_open(s1, filename);
  1330.     if (ret < 0) {
  1331.         if (flags & AFF_PRINT_ERROR)
  1332.             tcc_error_noabort("file '%s' not found", filename);
  1333.         return ret;
  1334.     }
  1335.  
  1336.     /* update target deps */
  1337.     dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps,
  1338.             tcc_strdup(filename));
  1339.  
  1340.     if (flags & AFF_PREPROCESS) {
  1341.         ret = tcc_preprocess(s1);
  1342.         goto the_end;
  1343.     }
  1344.  
  1345.     if (filetype == TCC_FILETYPE_C) {
  1346.         /* C file assumed */
  1347.         ret = tcc_compile(s1);
  1348.         goto the_end;
  1349.     }
  1350.  
  1351. #ifdef CONFIG_TCC_ASM
  1352.     if (filetype == TCC_FILETYPE_ASM_PP) {
  1353.         /* non preprocessed assembler */
  1354.         ret = tcc_assemble(s1, 1);
  1355.         goto the_end;
  1356.     }
  1357.  
  1358.     if (filetype == TCC_FILETYPE_ASM) {
  1359.         /* preprocessed assembler */
  1360.         ret = tcc_assemble(s1, 0);
  1361.         goto the_end;
  1362.     }
  1363. #endif
  1364.  
  1365.     fd = file->fd;
  1366.     /* assume executable format: auto guess file type */
  1367.     size = read(fd, &ehdr, sizeof(ehdr));
  1368.     lseek(fd, 0, SEEK_SET);
  1369.     if (size <= 0) {
  1370.         tcc_error_noabort("could not read header");
  1371.         goto the_end;
  1372.     }
  1373.  
  1374.     if (size == sizeof(ehdr) &&
  1375.         ehdr.e_ident[0] == ELFMAG0 &&
  1376.         ehdr.e_ident[1] == ELFMAG1 &&
  1377.         ehdr.e_ident[2] == ELFMAG2 &&
  1378.         ehdr.e_ident[3] == ELFMAG3) {
  1379.  
  1380.         /* do not display line number if error */
  1381.         file->line_num = 0;
  1382.         if (ehdr.e_type == ET_REL) {
  1383.             ret = tcc_load_object_file(s1, fd, 0);
  1384.             goto the_end;
  1385.  
  1386.         }
  1387. #if !defined(TCC_TARGET_PE) && !defined(TCC_TARGET_MEOS)
  1388.         if (ehdr.e_type == ET_DYN) {
  1389.             if (s1->output_type == TCC_OUTPUT_MEMORY) {
  1390. #ifdef TCC_IS_NATIVE
  1391.                 void *h;
  1392.                 h = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
  1393.                 if (h)
  1394. #endif
  1395.                     ret = 0;
  1396.             } else {
  1397.                 ret = tcc_load_dll(s1, fd, filename,
  1398.                                    (flags & AFF_REFERENCED_DLL) != 0);
  1399.             }
  1400.             goto the_end;
  1401.         }
  1402. #endif
  1403.         tcc_error_noabort("unrecognized ELF file");
  1404.         goto the_end;
  1405.     }
  1406.  
  1407.     if (memcmp((char *)&ehdr, ARMAG, 8) == 0) {
  1408.         file->line_num = 0; /* do not display line number if error */
  1409.         ret = tcc_load_archive(s1, fd);
  1410.         goto the_end;
  1411.     }
  1412.  
  1413. #ifdef TCC_TARGET_COFF
  1414.     if (*(uint16_t *)(&ehdr) == COFF_C67_MAGIC) {
  1415.         ret = tcc_load_coff(s1, fd);
  1416.         goto the_end;
  1417.     }
  1418. #endif
  1419.  
  1420. #if defined(TCC_TARGET_PE) ||  defined(TCC_TARGET_MEOS)
  1421.     ret = pe_load_file(s1, filename, fd);
  1422. #else
  1423.     /* as GNU ld, consider it is an ld script if not recognized */
  1424.     ret = tcc_load_ldscript(s1);
  1425. #endif
  1426.     if (ret < 0)
  1427.         tcc_error_noabort("unrecognized file type");
  1428.  
  1429. the_end:
  1430.     tcc_close();
  1431.     return ret;
  1432. }
  1433.  
  1434. LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename, int filetype)
  1435. {
  1436.     if (s->output_type == TCC_OUTPUT_PREPROCESS)
  1437.         return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR | AFF_PREPROCESS, filetype);
  1438.     else
  1439.         return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR, filetype);
  1440. }
  1441.  
  1442. LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
  1443. {
  1444.     tcc_split_path(s, (void ***)&s->library_paths, &s->nb_library_paths, pathname);
  1445.     return 0;
  1446. }
  1447.  
  1448. static int tcc_add_library_internal(TCCState *s, const char *fmt,
  1449.     const char *filename, int flags, char **paths, int nb_paths)
  1450. {
  1451.     char buf[1024];
  1452.     int i;
  1453.  
  1454.     for(i = 0; i < nb_paths; i++) {
  1455.         snprintf(buf, sizeof(buf), fmt, paths[i], filename);
  1456. //printf("added lib [%s]\n", buf);
  1457.         if (tcc_add_file_internal(s, buf, flags, TCC_FILETYPE_BINARY) == 0)
  1458.             return 0;
  1459.     }
  1460.     return -1;
  1461. }
  1462.  
  1463. #if !defined(TCC_TARGET_PE) && !defined(TCC_TARGET_MEOS)
  1464. /* find and load a dll. Return non zero if not found */
  1465. /* XXX: add '-rpath' option support ? */
  1466. ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
  1467. {
  1468.     return tcc_add_library_internal(s, "%s/%s", filename, flags,
  1469.         s->library_paths, s->nb_library_paths);
  1470. }
  1471. #endif
  1472.  
  1473. ST_FUNC int tcc_add_crt(TCCState *s, const char *filename)
  1474. {
  1475.     if (-1 == tcc_add_library_internal(s, "%s/%s",
  1476.         filename, 0, s->crt_paths, s->nb_crt_paths))
  1477.         tcc_error_noabort("file '%s' not found", filename);
  1478.     return 0;
  1479. }
  1480.  
  1481. /* the library name is the same as the argument of the '-l' option */
  1482. LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname)
  1483. {
  1484. #if defined(TCC_TARGET_PE) || defined(TCC_TARGET_MEOS)
  1485.     const char *libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL };
  1486.     const char **pp = s->static_link ? libs + 4 : libs;
  1487. #else
  1488.     const char *libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL };
  1489.     const char **pp = s->static_link ? libs + 1 : libs;
  1490. #endif
  1491.     while (*pp) {
  1492.         if (0 == tcc_add_library_internal(s, *pp,
  1493.             libraryname, 0, s->library_paths, s->nb_library_paths))
  1494.             return 0;
  1495.         ++pp;
  1496.     }
  1497.     return -1;
  1498. }
  1499.  
  1500. PUB_FUNC int tcc_add_library_err(TCCState *s, const char *libname)
  1501. {
  1502.     int ret = tcc_add_library(s, libname);
  1503.     if (ret < 0)
  1504.         tcc_error_noabort("cannot find library 'lib%s'", libname);
  1505.     return ret;
  1506. }
  1507.  
  1508. /* habdle #pragma comment(lib,) */
  1509. ST_FUNC void tcc_add_pragma_libs(TCCState *s1)
  1510. {
  1511.     int i;
  1512.     for (i = 0; i < s1->nb_pragma_libs; i++)
  1513.         tcc_add_library_err(s1, s1->pragma_libs[i]);
  1514. }
  1515.  
  1516. LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val)
  1517. {
  1518. #if defined(TCC_TARGET_PE) || defined(TCC_TARGET_MEOS)
  1519.     /* On x86_64 'val' might not be reachable with a 32bit offset.
  1520.        So it is handled here as if it were in a DLL. */
  1521.     pe_putimport(s, 0, name, (uintptr_t)val);
  1522. #else
  1523.     add_elf_sym(symtab_section, (uintptr_t)val, 0,
  1524.         ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0,
  1525.         SHN_ABS, name);
  1526. #endif
  1527.     return 0;
  1528. }
  1529.  
  1530.  
  1531. /* Windows stat* ( https://msdn.microsoft.com/en-us/library/14h5k7ff.aspx ):
  1532.  * - st_gid, st_ino, st_uid: only valid on "unix" file systems (not FAT, NTFS, etc)
  1533.  * - st_atime, st_ctime: not valid on FAT, valid on NTFS.
  1534.  * - Other fields should be reasonably compatible (and S_ISDIR should work).
  1535.  *
  1536.  * BY_HANDLE_FILE_INFORMATION ( https://msdn.microsoft.com/en-us/library/windows/desktop/aa363788%28v=vs.85%29.aspx ):
  1537.  * - File index (combined nFileIndexHigh and nFileIndexLow) _may_ change when the file is opened.
  1538.  *   - But on NTFS: it's guaranteed to be the same value until the file is deleted.
  1539.  * - On windows server 2012 there's a 128b file id, and the 64b one via
  1540.  *   nFileIndex* is not guaranteed to be unique.
  1541.  *
  1542.  * - MS Docs suggest to that volume number with the file index could be used to
  1543.  *   check if two handles refer to the same file.
  1544.  */
  1545. #ifndef _WIN32
  1546. typedef struct stat                file_info_t;
  1547. #else
  1548. typedef BY_HANDLE_FILE_INFORMATION file_info_t;
  1549. #endif
  1550.  
  1551. int get_file_info(const char *fname, file_info_t *out_info)
  1552. {
  1553. #ifndef _WIN32
  1554.     return stat(fname, out_info);
  1555. #else
  1556.     int rv = 1;
  1557.     HANDLE h = CreateFile(fname, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
  1558.                           FILE_ATTRIBUTE_NORMAL|FILE_FLAG_BACKUP_SEMANTICS, NULL);
  1559.  
  1560.     if (h != INVALID_HANDLE_VALUE) {
  1561.         rv = !GetFileInformationByHandle(h, out_info);
  1562.         CloseHandle(h);
  1563.     }
  1564.     return rv;
  1565. #endif
  1566. }
  1567.  
  1568. int is_dir(file_info_t *info)
  1569. {
  1570. #ifndef _WIN32
  1571.     return S_ISDIR(info->st_mode);
  1572. #else
  1573.     return (info->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ==
  1574.            FILE_ATTRIBUTE_DIRECTORY;
  1575. #endif
  1576. }
  1577.  
  1578. int is_same_file(const file_info_t *fi1, const file_info_t *fi2)
  1579. {
  1580. #ifndef _WIN32
  1581.     return fi1->st_dev == fi2->st_dev &&
  1582.            fi1->st_ino == fi2->st_ino;
  1583. #else
  1584.     return fi1->dwVolumeSerialNumber == fi2->dwVolumeSerialNumber &&
  1585.            fi1->nFileIndexHigh       == fi2->nFileIndexHigh &&
  1586.            fi1->nFileIndexLow        == fi2->nFileIndexLow;
  1587. #endif
  1588. }
  1589.  
  1590. static void
  1591. tcc_normalize_inc_dirs_aux(file_info_t *stats, size_t *pnum, char **path)
  1592. {
  1593.     size_t i, num = *pnum;
  1594.     if (get_file_info(*path, &stats[num]) || !is_dir(&stats[num]))
  1595.         goto remove;
  1596.     for (i = 0; i < num; i++)
  1597.         if (is_same_file(&stats[i], &stats[num]))
  1598.             goto remove;
  1599.     *pnum = num + 1;
  1600.     return;
  1601.  remove:
  1602.     tcc_free(*path);
  1603.     *path = 0;
  1604. }
  1605.  
  1606. /* Remove non-existent and duplicate directories from include paths. */
  1607. ST_FUNC void tcc_normalize_inc_dirs(TCCState *s)
  1608. {
  1609.     file_info_t *stats =
  1610.         tcc_malloc(((size_t)s->nb_sysinclude_paths + s->nb_include_paths) *
  1611.                    sizeof(*stats));
  1612.     size_t i, num = 0;
  1613.     for (i = 0; i < s->nb_sysinclude_paths; i++)
  1614.         tcc_normalize_inc_dirs_aux(stats, &num, &s->sysinclude_paths[i]);
  1615.     for (i = 0; i < s->nb_include_paths; i++)
  1616.         tcc_normalize_inc_dirs_aux(stats, &num, &s->include_paths[i]);
  1617.     tcc_free(stats);
  1618. }
  1619.  
  1620. LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
  1621. {
  1622.     s->output_type = output_type;
  1623.  
  1624.     if (s->output_type == TCC_OUTPUT_PREPROCESS) {
  1625.         if (!s->outfile) {
  1626.             s->ppfp = stdout;
  1627.         } else {
  1628.             s->ppfp = fopen(s->outfile, "w");
  1629.             if (!s->ppfp)
  1630.                 tcc_error("could not write '%s'", s->outfile);
  1631.         }
  1632.         s->dffp = s->ppfp;
  1633.         if (s->dflag == 'M')
  1634.             s->ppfp = NULL;
  1635.     }
  1636.     if (s->option_C && !s->ppfp)
  1637.         s->option_C = 0;
  1638.  
  1639.     if (!s->nostdinc) {
  1640.         /* default include paths */
  1641.         /* -isystem paths have already been handled */
  1642.         tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
  1643.     }
  1644.  
  1645.     /* if bound checking, then add corresponding sections */
  1646. #ifdef CONFIG_TCC_BCHECK
  1647.     if (s->do_bounds_check) {
  1648.         /* define symbol */
  1649.         tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL);
  1650.         /* create bounds sections */
  1651.         bounds_section = new_section(s, ".bounds",
  1652.                                      SHT_PROGBITS, SHF_ALLOC);
  1653.         lbounds_section = new_section(s, ".lbounds",
  1654.                                       SHT_PROGBITS, SHF_ALLOC);
  1655.     }
  1656. #endif
  1657.  
  1658.     if (s->char_is_unsigned) {
  1659.         tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL);
  1660.     }
  1661.  
  1662.     /* add debug sections */
  1663.     if (s->do_debug) {
  1664.         /* stab symbols */
  1665.         stab_section = new_section(s, ".stab", SHT_PROGBITS, 0);
  1666.         stab_section->sh_entsize = sizeof(Stab_Sym);
  1667.         stabstr_section = new_section(s, ".stabstr", SHT_STRTAB, 0);
  1668.         put_elf_str(stabstr_section, "");
  1669.         stab_section->link = stabstr_section;
  1670.         /* put first entry */
  1671.         put_stabs("", 0, 0, 0, 0);
  1672.     }
  1673.  
  1674.     tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
  1675. #ifdef TCC_TARGET_PE
  1676. # ifdef _WIN32
  1677.     tcc_add_systemdir(s);
  1678. # endif
  1679. #elif defined(TCC_TARGET_MEOS)
  1680.     if (s->output_type != TCC_OUTPUT_OBJ && !s->nostdlib)
  1681.     {
  1682.         tcc_add_crt(s,"start.o");
  1683. //        tcc_add_library(s,"ck"); // adding libck.a dont work, because need to be added last
  1684.     }
  1685. #else
  1686.     /* add libc crt1/crti objects */
  1687.     if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) &&
  1688.         !s->nostdlib) {
  1689.         if (output_type != TCC_OUTPUT_DLL)
  1690.             tcc_add_crt(s, "crt1.o");
  1691.         tcc_add_crt(s, "crti.o");
  1692.     }
  1693. #endif
  1694.  
  1695. #ifdef CONFIG_TCC_BCHECK
  1696.     if (s->do_bounds_check && (output_type == TCC_OUTPUT_EXE))
  1697.     {
  1698.         /* force a bcheck.o linking */
  1699.         addr_t func = TOK___bound_init;
  1700.         Sym *sym = external_global_sym(func, &func_old_type, 0);
  1701.         if (!sym->c)
  1702.             put_extern_sym(sym, NULL, 0, 0);
  1703.     }
  1704. #endif
  1705.  
  1706.     if (s->normalize_inc_dirs)
  1707.         tcc_normalize_inc_dirs(s);
  1708.     if (s->output_type == TCC_OUTPUT_PREPROCESS)
  1709.         print_defines();
  1710.  
  1711.     return 0;
  1712. }
  1713.  
  1714. LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path)
  1715. {
  1716.     tcc_free(s->tcc_lib_path);
  1717.     s->tcc_lib_path = tcc_strdup(path);
  1718. }
  1719.  
  1720. #define WD_ALL    0x0001 /* warning is activated when using -Wall */
  1721. #define FD_INVERT 0x0002 /* invert value before storing */
  1722.  
  1723. typedef struct FlagDef {
  1724.     uint16_t offset;
  1725.     uint16_t flags;
  1726.     const char *name;
  1727. } FlagDef;
  1728.  
  1729. static const FlagDef warning_defs[] = {
  1730.     { offsetof(TCCState, warn_unsupported), 0, "unsupported" },
  1731.     { offsetof(TCCState, warn_write_strings), 0, "write-strings" },
  1732.     { offsetof(TCCState, warn_error), 0, "error" },
  1733.     { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL,
  1734.       "implicit-function-declaration" },
  1735. };
  1736.  
  1737. ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, int nb_flags,
  1738.                     const char *name, int value)
  1739. {
  1740.     int i;
  1741.     const FlagDef *p;
  1742.     const char *r;
  1743.  
  1744.     r = name;
  1745.     if (r[0] == 'n' && r[1] == 'o' && r[2] == '-') {
  1746.         r += 3;
  1747.         value = !value;
  1748.     }
  1749.     for(i = 0, p = flags; i < nb_flags; i++, p++) {
  1750.         if (!strcmp(r, p->name))
  1751.             goto found;
  1752.     }
  1753.     return -1;
  1754.  found:
  1755.     if (p->flags & FD_INVERT)
  1756.         value = !value;
  1757.     *(int *)((uint8_t *)s + p->offset) = value;
  1758.     return 0;
  1759. }
  1760.  
  1761. /* set/reset a warning */
  1762. static int tcc_set_warning(TCCState *s, const char *warning_name, int value)
  1763. {
  1764.     int i;
  1765.     const FlagDef *p;
  1766.  
  1767.     if (!strcmp(warning_name, "all")) {
  1768.         for(i = 0, p = warning_defs; i < countof(warning_defs); i++, p++) {
  1769.             if (p->flags & WD_ALL)
  1770.                 *(int *)((uint8_t *)s + p->offset) = 1;
  1771.         }
  1772.                 s->warn_unsupported = 1;  // siemargl. was unused flag about compiler features
  1773.         return 0;
  1774.     } else {
  1775.         return set_flag(s, warning_defs, countof(warning_defs),
  1776.                         warning_name, value);
  1777.     }
  1778. }
  1779.  
  1780. static const FlagDef flag_defs[] = {
  1781.     { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
  1782.     { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
  1783.     { offsetof(TCCState, nocommon), FD_INVERT, "common" },
  1784.     { offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
  1785.     { offsetof(TCCState, ms_extensions), 0, "ms-extensions" },
  1786.     { offsetof(TCCState, old_struct_init_code), 0, "old-struct-init-code" },
  1787.     { offsetof(TCCState, dollars_in_identifiers), 0, "dollars-in-identifiers" },
  1788.     { offsetof(TCCState, normalize_inc_dirs), 0, "normalize-inc-dirs" },
  1789. };
  1790.  
  1791. /* set/reset a flag */
  1792. static int tcc_set_flag(TCCState *s, const char *flag_name, int value)
  1793. {
  1794.     return set_flag(s, flag_defs, countof(flag_defs),
  1795.                     flag_name, value);
  1796. }
  1797.  
  1798.  
  1799. static int strstart(const char *val, const char **str)
  1800. {
  1801.     const char *p, *q;
  1802.     p = *str;
  1803.     q = val;
  1804.     while (*q) {
  1805.         if (*p != *q)
  1806.             return 0;
  1807.         p++;
  1808.         q++;
  1809.     }
  1810.     *str = p;
  1811.     return 1;
  1812. }
  1813.  
  1814. /* Like strstart, but automatically takes into account that ld options can
  1815.  *
  1816.  * - start with double or single dash (e.g. '--soname' or '-soname')
  1817.  * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
  1818.  *   or '-Wl,-soname=x.so')
  1819.  *
  1820.  * you provide `val` always in 'option[=]' form (no leading -)
  1821.  */
  1822. static int link_option(const char *str, const char *val, const char **ptr)
  1823. {
  1824.     const char *p, *q;
  1825.  
  1826.     /* there should be 1 or 2 dashes */
  1827.     if (*str++ != '-')
  1828.         return 0;
  1829.     if (*str == '-')
  1830.         str++;
  1831.  
  1832.     /* then str & val should match (potentialy up to '=') */
  1833.     p = str;
  1834.     q = val;
  1835.  
  1836.     while (*q != '\0' && *q != '=') {
  1837.         if (*p != *q)
  1838.             return 0;
  1839.         p++;
  1840.         q++;
  1841.     }
  1842.  
  1843.     /* '=' near eos means ',' or '=' is ok */
  1844.     if (*q == '=') {
  1845.         if (*p != ',' && *p != '=')
  1846.             return 0;
  1847.         p++;
  1848.         q++;
  1849.     }
  1850.  
  1851.     if (ptr)
  1852.         *ptr = p;
  1853.     return 1;
  1854. }
  1855.  
  1856. static const char *skip_linker_arg(const char **str)
  1857. {
  1858.     const char *s1 = *str;
  1859.     const char *s2 = strchr(s1, ',');
  1860.     *str = s2 ? s2++ : (s2 = s1 + strlen(s1));
  1861.     return s2;
  1862. }
  1863.  
  1864. static char *copy_linker_arg(const char *p)
  1865. {
  1866.     const char *q = p;
  1867.     skip_linker_arg(&q);
  1868.     return pstrncpy(tcc_malloc(q - p + 1), p, q - p);
  1869. }
  1870.  
  1871. /* set linker options */
  1872. static int tcc_set_linker(TCCState *s, const char *option)
  1873. {
  1874.     while (option && *option) {
  1875.  
  1876.         const char *p = option;
  1877.         char *end = NULL;
  1878.         int ignoring = 0;
  1879.  
  1880.         if (link_option(option, "Bsymbolic", &p)) {
  1881.             s->symbolic = 1;
  1882.         } else if (link_option(option, "nostdlib", &p)) {
  1883.             s->nostdlib = 1;
  1884.         } else if (link_option(option, "fini=", &p)) {
  1885.             s->fini_symbol = copy_linker_arg(p);
  1886.             ignoring = 1;
  1887.         } else if (link_option(option, "image-base=", &p)
  1888.                 || link_option(option, "Ttext=", &p)) {
  1889.             s->text_addr = strtoull(p, &end, 16);
  1890.             s->has_text_addr = 1;
  1891.         } else if (link_option(option, "init=", &p)) {
  1892.             s->init_symbol = copy_linker_arg(p);
  1893.             ignoring = 1;
  1894.         } else if (link_option(option, "oformat=", &p)) {
  1895. #if defined(TCC_TARGET_PE)
  1896.             if (strstart("pe-", &p)) {
  1897. #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
  1898.             if (strstart("elf64-", &p)) {
  1899. #else
  1900.             if (strstart("elf32-", &p)) {
  1901. #endif
  1902.                 s->output_format = TCC_OUTPUT_FORMAT_ELF;
  1903.             } else if (!strcmp(p, "binary")) {
  1904.                 s->output_format = TCC_OUTPUT_FORMAT_BINARY;
  1905. #ifdef TCC_TARGET_COFF
  1906.             } else if (!strcmp(p, "coff")) {
  1907.                 s->output_format = TCC_OUTPUT_FORMAT_COFF;
  1908. #endif
  1909.             } else
  1910.                 goto err;
  1911.  
  1912.         } else if (link_option(option, "as-needed", &p)) {
  1913.             ignoring = 1;
  1914.         } else if (link_option(option, "O", &p)) {
  1915.             ignoring = 1;
  1916.         } else if (link_option(option, "rpath=", &p)) {
  1917.             s->rpath = copy_linker_arg(p);
  1918.         } else if (link_option(option, "section-alignment=", &p)) {
  1919.             s->section_align = strtoul(p, &end, 16);
  1920.         } else if (link_option(option, "soname=", &p)) {
  1921.             s->soname = copy_linker_arg(p);
  1922. #ifdef TCC_TARGET_PE
  1923.         } else if (link_option(option, "file-alignment=", &p)) {
  1924.             s->pe_file_align = strtoul(p, &end, 16);
  1925.         } else if (link_option(option, "stack=", &p)) {
  1926.             s->pe_stack_size = strtoul(p, &end, 10);
  1927.         } else if (link_option(option, "subsystem=", &p)) {
  1928. #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
  1929.             if (!strcmp(p, "native")) {
  1930.                 s->pe_subsystem = 1;
  1931.             } else if (!strcmp(p, "console")) {
  1932.                 s->pe_subsystem = 3;
  1933.             } else if (!strcmp(p, "gui")) {
  1934.                 s->pe_subsystem = 2;
  1935.             } else if (!strcmp(p, "posix")) {
  1936.                 s->pe_subsystem = 7;
  1937.             } else if (!strcmp(p, "efiapp")) {
  1938.                 s->pe_subsystem = 10;
  1939.             } else if (!strcmp(p, "efiboot")) {
  1940.                 s->pe_subsystem = 11;
  1941.             } else if (!strcmp(p, "efiruntime")) {
  1942.                 s->pe_subsystem = 12;
  1943.             } else if (!strcmp(p, "efirom")) {
  1944.                 s->pe_subsystem = 13;
  1945. #elif defined(TCC_TARGET_ARM)
  1946.             if (!strcmp(p, "wince")) {
  1947.                 s->pe_subsystem = 9;
  1948. #endif
  1949.             } else
  1950.                 goto err;
  1951. #endif
  1952.         } else
  1953.             goto err;
  1954.  
  1955.         if (ignoring && s->warn_unsupported) err: {
  1956.             char buf[100], *e;
  1957.             pstrcpy(buf, sizeof buf, e = copy_linker_arg(option)), tcc_free(e);
  1958.             if (ignoring)
  1959.                 tcc_warning("unsupported linker option '%s'", buf);
  1960.             else
  1961.                 tcc_error("unsupported linker option '%s'", buf);
  1962.         }
  1963.         option = skip_linker_arg(&p);
  1964.     }
  1965.     return 0;
  1966. }
  1967.  
  1968. typedef struct TCCOption {
  1969.     const char *name;
  1970.     uint16_t index;
  1971.     uint16_t flags;
  1972. } TCCOption;
  1973.  
  1974. enum {
  1975.     TCC_OPTION_HELP,
  1976.     TCC_OPTION_I,
  1977.     TCC_OPTION_D,
  1978.     TCC_OPTION_U,
  1979.     TCC_OPTION_P,
  1980.     TCC_OPTION_L,
  1981.     TCC_OPTION_B,
  1982.     TCC_OPTION_l,
  1983.     TCC_OPTION_bench,
  1984.     TCC_OPTION_bt,
  1985.     TCC_OPTION_b,
  1986.     TCC_OPTION_g,
  1987.     TCC_OPTION_c,
  1988.     TCC_OPTION_C,
  1989.     TCC_OPTION_dumpversion,
  1990.     TCC_OPTION_d,
  1991.     TCC_OPTION_float_abi,
  1992.     TCC_OPTION_static,
  1993.     TCC_OPTION_std,
  1994.     TCC_OPTION_shared,
  1995.     TCC_OPTION_soname,
  1996.     TCC_OPTION_o,
  1997.     TCC_OPTION_r,
  1998.     TCC_OPTION_s,
  1999.     TCC_OPTION_traditional,
  2000.     TCC_OPTION_Wl,
  2001.     TCC_OPTION_W,
  2002.     TCC_OPTION_O,
  2003.     TCC_OPTION_m,
  2004.     TCC_OPTION_f,
  2005.     TCC_OPTION_isystem,
  2006.     TCC_OPTION_iwithprefix,
  2007.     TCC_OPTION_nostdinc,
  2008.     TCC_OPTION_nostdlib,
  2009.     TCC_OPTION_print_search_dirs,
  2010.     TCC_OPTION_rdynamic,
  2011.     TCC_OPTION_pedantic,
  2012.     TCC_OPTION_pthread,
  2013.     TCC_OPTION_run,
  2014.     TCC_OPTION_v,
  2015.     TCC_OPTION_w,
  2016.     TCC_OPTION_pipe,
  2017.     TCC_OPTION_E,
  2018.     TCC_OPTION_MD,
  2019.     TCC_OPTION_MF,
  2020.     TCC_OPTION_x,
  2021.     TCC_OPTION_stack
  2022. };
  2023.  
  2024. #define TCC_OPTION_HAS_ARG 0x0001
  2025. #define TCC_OPTION_NOSEP   0x0002 /* cannot have space before option and arg */
  2026.  
  2027. static const TCCOption tcc_options[] = {
  2028.     { "h", TCC_OPTION_HELP, 0 },
  2029.     { "-help", TCC_OPTION_HELP, 0 },
  2030.     { "?", TCC_OPTION_HELP, 0 },
  2031.     { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG },
  2032.     { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG },
  2033.     { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG },
  2034.     { "P", TCC_OPTION_P, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2035.     { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG },
  2036.     { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG },
  2037.     { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2038.     { "bench", TCC_OPTION_bench, 0 },
  2039. #ifdef CONFIG_TCC_BACKTRACE
  2040.     { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG },
  2041. #endif
  2042. #ifdef CONFIG_TCC_BCHECK
  2043.     { "b", TCC_OPTION_b, 0 },
  2044. #endif
  2045.     { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2046.     { "c", TCC_OPTION_c, 0 },
  2047.     { "C", TCC_OPTION_C, 0 },
  2048.     { "dumpversion", TCC_OPTION_dumpversion, 0},
  2049.     { "d", TCC_OPTION_d, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2050. #ifdef TCC_TARGET_ARM
  2051.     { "mfloat-abi", TCC_OPTION_float_abi, TCC_OPTION_HAS_ARG },
  2052. #endif
  2053.     { "static", TCC_OPTION_static, 0 },
  2054.     { "std", TCC_OPTION_std, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2055.     { "shared", TCC_OPTION_shared, 0 },
  2056.     { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG },
  2057.     { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG },
  2058.     { "pedantic", TCC_OPTION_pedantic, 0},
  2059.     { "pthread", TCC_OPTION_pthread, 0},
  2060.     { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2061.     { "rdynamic", TCC_OPTION_rdynamic, 0 },
  2062.     { "r", TCC_OPTION_r, 0 },
  2063.     { "s", TCC_OPTION_s, 0 },
  2064.     { "traditional", TCC_OPTION_traditional, 0 },
  2065.     { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2066.     { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2067.     { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2068.     { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG },
  2069.     { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2070.     { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
  2071.     { "iwithprefix", TCC_OPTION_iwithprefix, TCC_OPTION_HAS_ARG },
  2072.     { "nostdinc", TCC_OPTION_nostdinc, 0 },
  2073.     { "nostdlib", TCC_OPTION_nostdlib, 0 },
  2074.     { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 },
  2075.     { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
  2076.     { "w", TCC_OPTION_w, 0 },
  2077.     { "pipe", TCC_OPTION_pipe, 0},
  2078.     { "E", TCC_OPTION_E, 0},
  2079.     { "MD", TCC_OPTION_MD, 0},
  2080.     { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG },
  2081.     { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG },
  2082.     { "stack", TCC_OPTION_stack, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP},
  2083.     { NULL, 0, 0 },
  2084. };
  2085.  
  2086. static void parse_option_D(TCCState *s1, const char *optarg)
  2087. {
  2088.     char *sym = tcc_strdup(optarg);
  2089.     char *value = strchr(sym, '=');
  2090.     if (value)
  2091.         *value++ = '\0';
  2092.     tcc_define_symbol(s1, sym, value);
  2093.     tcc_free(sym);
  2094. }
  2095.  
  2096. static void args_parser_add_file(TCCState *s, const char* filename, int filetype)
  2097. {
  2098.     int len = strlen(filename);
  2099.     char *p = tcc_malloc(len + 2);
  2100.     if (filetype) {
  2101.         *p = filetype;
  2102.     }
  2103.     else {
  2104.         /* use a file extension to detect a filetype */
  2105.         const char *ext = tcc_fileextension(filename);
  2106.         if (ext[0]) {
  2107.             ext++;
  2108.             if (!strcmp(ext, "S"))
  2109.                 *p = TCC_FILETYPE_ASM_PP;
  2110.             else
  2111.             if (!strcmp(ext, "s"))
  2112.                 *p = TCC_FILETYPE_ASM;
  2113.             else
  2114.             if (!PATHCMP(ext, "c") || !PATHCMP(ext, "i"))
  2115.                 *p = TCC_FILETYPE_C;
  2116.             else
  2117.                 *p = TCC_FILETYPE_BINARY;
  2118.         }
  2119.         else {
  2120.             *p = TCC_FILETYPE_C;
  2121.         }
  2122.     }
  2123.     strcpy(p+1, filename);
  2124.     dynarray_add((void ***)&s->files, &s->nb_files, p);
  2125. }
  2126.  
  2127. ST_FUNC int tcc_parse_args1(TCCState *s, int argc, char **argv)
  2128. {
  2129.     const TCCOption *popt;
  2130.     const char *optarg, *r;
  2131.     int optind = 0;
  2132.     ParseArgsState *pas = s->parse_args_state;
  2133.  
  2134. /*
  2135. #ifdef TCC_TARGET_MEOS
  2136. // siemargl testing
  2137.         s->output_format = TCC_OUTPUT_FORMAT_COFF;
  2138. #endif
  2139. */
  2140.     while (optind < argc) {
  2141.  
  2142.         r = argv[optind++];
  2143.         if (r[0] != '-' || r[1] == '\0') {
  2144.             /* handle list files */
  2145.             if (r[0] == '@' && r[1]) {
  2146.                 char buf[sizeof file->filename], *p;
  2147.                 char **argv = NULL;
  2148.                 int argc = 0;
  2149.                 FILE *fp;
  2150.  
  2151.                 fp = fopen(r + 1, "rb");
  2152.                 if (fp == NULL)
  2153.                     tcc_error("list file '%s' not found", r + 1);
  2154.                 while (fgets(buf, sizeof buf, fp)) {
  2155.                     p = trimfront(trimback(buf, strchr(buf, 0)));
  2156.                     if (0 == *p || ';' == *p)
  2157.                         continue;
  2158.                     dynarray_add((void ***)&argv, &argc, tcc_strdup(p));
  2159.                 }
  2160.                 fclose(fp);
  2161.                 tcc_parse_args1(s, argc, argv);
  2162.                 dynarray_reset(&argv, &argc);
  2163.             } else {
  2164.                 args_parser_add_file(s, r, pas->filetype);
  2165.                 if (pas->run) {
  2166.                     optind--;
  2167.                     /* argv[0] will be this file */
  2168.                     break;
  2169.                 }
  2170.             }
  2171.             continue;
  2172.         }
  2173.  
  2174.         /* find option in table */
  2175.         for(popt = tcc_options; ; ++popt) {
  2176.             const char *p1 = popt->name;
  2177.             const char *r1 = r + 1;
  2178.             if (p1 == NULL)
  2179.                 tcc_error("invalid option -- '%s'", r);
  2180.             if (!strstart(p1, &r1))
  2181.                 continue;
  2182.             optarg = r1;
  2183.             if (popt->flags & TCC_OPTION_HAS_ARG) {
  2184.                 if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) {
  2185.                     if (optind >= argc)
  2186.                         tcc_error("argument to '%s' is missing", r);
  2187.                     optarg = argv[optind++];
  2188.                 }
  2189.             } else if (*r1 != '\0')
  2190.                 continue;
  2191.             break;
  2192.         }
  2193.  
  2194.         switch(popt->index) {
  2195.         case TCC_OPTION_HELP:
  2196.             return 0;
  2197.         case TCC_OPTION_I:
  2198.             tcc_add_include_path(s, optarg);
  2199.             break;
  2200.         case TCC_OPTION_D:
  2201.             parse_option_D(s, optarg);
  2202.             break;
  2203.         case TCC_OPTION_U:
  2204.             tcc_undefine_symbol(s, optarg);
  2205.             break;
  2206.         case TCC_OPTION_L:
  2207.             tcc_add_library_path(s, optarg);
  2208.             break;
  2209.         case TCC_OPTION_B:
  2210.             /* set tcc utilities path (mainly for tcc development) */
  2211.             tcc_set_lib_path(s, optarg);
  2212.             break;
  2213.         case TCC_OPTION_l:
  2214.             args_parser_add_file(s, r, TCC_FILETYPE_BINARY);
  2215.             s->nb_libraries++;
  2216.             break;
  2217.         case TCC_OPTION_pthread:
  2218.             parse_option_D(s, "_REENTRANT");
  2219.             pas->pthread = 1;
  2220.             break;
  2221.         case TCC_OPTION_bench:
  2222.             s->do_bench = 1;
  2223.             break;
  2224. #ifdef CONFIG_TCC_BACKTRACE
  2225.         case TCC_OPTION_bt:
  2226.             tcc_set_num_callers(atoi(optarg));
  2227.             break;
  2228. #endif
  2229. #ifdef CONFIG_TCC_BCHECK
  2230.         case TCC_OPTION_b:
  2231.             s->do_bounds_check = 1;
  2232.             s->do_debug = 1;
  2233.             break;
  2234. #endif
  2235.         case TCC_OPTION_g:
  2236.             s->do_debug = 1;
  2237.             break;
  2238.         case TCC_OPTION_c:
  2239.             if (s->output_type)
  2240.                 tcc_warning("-c: some compiler action already specified (%d)", s->output_type);
  2241.             s->output_type = TCC_OUTPUT_OBJ;
  2242.             break;
  2243.         case TCC_OPTION_C:
  2244.             s->option_C = 1;
  2245.             break;
  2246.         case TCC_OPTION_d:
  2247.             if (*optarg == 'D' || *optarg == 'M')
  2248.                 s->dflag = *optarg;
  2249.             else {
  2250.                 if (s->warn_unsupported)
  2251.                     goto unsupported_option;
  2252.                 tcc_error("invalid option -- '%s'", r);
  2253.             }
  2254.             break;
  2255. #ifdef TCC_TARGET_ARM
  2256.         case TCC_OPTION_float_abi:
  2257.             /* tcc doesn't support soft float yet */
  2258.             if (!strcmp(optarg, "softfp")) {
  2259.                 s->float_abi = ARM_SOFTFP_FLOAT;
  2260.                 tcc_undefine_symbol(s, "__ARM_PCS_VFP");
  2261.             } else if (!strcmp(optarg, "hard"))
  2262.                 s->float_abi = ARM_HARD_FLOAT;
  2263.             else
  2264.                 tcc_error("unsupported float abi '%s'", optarg);
  2265.             break;
  2266. #endif
  2267.         case TCC_OPTION_static:
  2268.             s->static_link = 1;
  2269.             break;
  2270.         case TCC_OPTION_std:
  2271.             /* silently ignore, a current purpose:
  2272.                allow to use a tcc as a reference compiler for "make test" */
  2273.             break;
  2274.         case TCC_OPTION_shared:
  2275.             if (s->output_type)
  2276.                 tcc_warning("-shared: some compiler action already specified (%d)", s->output_type);
  2277.             s->output_type = TCC_OUTPUT_DLL;
  2278.             break;
  2279.         case TCC_OPTION_soname:
  2280.             s->soname = tcc_strdup(optarg);
  2281.             break;
  2282.         case TCC_OPTION_m:
  2283.             s->option_m = tcc_strdup(optarg);
  2284.             break;
  2285.         case TCC_OPTION_o:
  2286.             if (s->outfile) {
  2287.                 tcc_warning("multiple -o option");
  2288.                 tcc_free(s->outfile);
  2289.             }
  2290.             s->outfile = tcc_strdup(optarg);
  2291.             break;
  2292.         case TCC_OPTION_r:
  2293.             /* generate a .o merging several output files */
  2294.             if (s->output_type)
  2295.                 tcc_warning("-r: some compiler action already specified (%d)", s->output_type);
  2296.             s->option_r = 1;
  2297.             s->output_type = TCC_OUTPUT_OBJ;
  2298.             break;
  2299.         case TCC_OPTION_isystem:
  2300.             tcc_add_sysinclude_path(s, optarg);
  2301.             break;
  2302.         case TCC_OPTION_iwithprefix:
  2303.             if (1) {
  2304.                 char buf[1024];
  2305.                 int buf_size = sizeof(buf)-1;
  2306.                 char *p = &buf[0];
  2307.  
  2308.                 char *sysroot = "{B}/";
  2309.                 int len = strlen(sysroot);
  2310.                 if (len > buf_size)
  2311.                     len = buf_size;
  2312.                 strncpy(p, sysroot, len);
  2313.                 p += len;
  2314.                 buf_size -= len;
  2315.  
  2316.                 len = strlen(optarg);
  2317.                 if (len > buf_size)
  2318.                     len = buf_size;
  2319.                 strncpy(p, optarg, len+1);
  2320.                 tcc_add_sysinclude_path(s, buf);
  2321.             }
  2322.             break;
  2323.         case TCC_OPTION_nostdinc:
  2324.             s->nostdinc = 1;
  2325.             break;
  2326.         case TCC_OPTION_nostdlib:
  2327.             s->nostdlib = 1;
  2328.             break;
  2329.         case TCC_OPTION_print_search_dirs:
  2330.             s->print_search_dirs = 1;
  2331.             break;
  2332.         case TCC_OPTION_run:
  2333.             if (s->output_type)
  2334.                 tcc_warning("-run: some compiler action already specified (%d)", s->output_type);
  2335.             s->output_type = TCC_OUTPUT_MEMORY;
  2336.             tcc_set_options(s, optarg);
  2337.             pas->run = 1;
  2338.             break;
  2339.         case TCC_OPTION_v:
  2340.             do ++s->verbose; while (*optarg++ == 'v');
  2341.             break;
  2342.         case TCC_OPTION_f:
  2343.             if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported)
  2344.                 goto unsupported_option;
  2345.             break;
  2346.         case TCC_OPTION_W:
  2347.             if (tcc_set_warning(s, optarg, 1) < 0 &&
  2348.                 s->warn_unsupported)
  2349.                 goto unsupported_option;
  2350.             break;
  2351.         case TCC_OPTION_w:
  2352.             s->warn_none = 1;
  2353.             break;
  2354.         case TCC_OPTION_rdynamic:
  2355.             s->rdynamic = 1;
  2356.             break;
  2357.         case TCC_OPTION_Wl:
  2358.             if (pas->linker_arg.size)
  2359.                 --pas->linker_arg.size, cstr_ccat(&pas->linker_arg, ',');
  2360.             cstr_cat(&pas->linker_arg, optarg, 0);
  2361.             break;
  2362.         case TCC_OPTION_E:
  2363.             if (s->output_type)
  2364.                 tcc_warning("-E: some compiler action already specified (%d)", s->output_type);
  2365.             s->output_type = TCC_OUTPUT_PREPROCESS;
  2366.             break;
  2367.         case TCC_OPTION_P:
  2368.             s->Pflag = atoi(optarg) + 1;
  2369.             break;
  2370.         case TCC_OPTION_MD:
  2371.             s->gen_deps = 1;
  2372.             break;
  2373.         case TCC_OPTION_MF:
  2374.             s->deps_outfile = tcc_strdup(optarg);
  2375.             break;
  2376.         case TCC_OPTION_dumpversion:
  2377.             printf ("%s\n", TCC_VERSION);
  2378.             exit(0);
  2379.         case TCC_OPTION_s:
  2380.             s->do_strip = 1;
  2381.             break;
  2382.         case TCC_OPTION_traditional:
  2383.             break;
  2384.         case TCC_OPTION_x:
  2385.             if (*optarg == 'c')
  2386.                 pas->filetype = TCC_FILETYPE_C;
  2387.             else
  2388.             if (*optarg == 'a')
  2389.                 pas->filetype = TCC_FILETYPE_ASM_PP;
  2390.             else
  2391.             if (*optarg == 'n')
  2392.                 pas->filetype = 0;
  2393.             else
  2394.                 tcc_warning("unsupported language '%s'", optarg);
  2395.             break;
  2396.         case TCC_OPTION_O:
  2397.             if (1) {
  2398.                 int opt = atoi(optarg);
  2399.                 char *sym = "__OPTIMIZE__";
  2400.                 if (opt)
  2401.                     tcc_define_symbol(s, sym, 0);
  2402.                 else
  2403.                     tcc_undefine_symbol(s, sym);
  2404.             }
  2405.             break;
  2406.         case TCC_OPTION_pedantic:
  2407.         case TCC_OPTION_pipe:
  2408.             /* ignored */
  2409.             break;
  2410.         case TCC_OPTION_stack:
  2411. #ifdef TCC_TARGET_MEOS
  2412.             s->pe_stack_size = strtoul(optarg+1, NULL, 10);
  2413. #endif
  2414.             break;
  2415.         default:
  2416.             if (s->warn_unsupported) {
  2417.             unsupported_option:
  2418.                 tcc_warning("unsupported option '%s'", r);
  2419.             }
  2420.             break;
  2421.         }
  2422.     }
  2423.     return optind;
  2424. }
  2425.  
  2426. PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv)
  2427. {
  2428.     ParseArgsState *pas;
  2429.     int ret, is_allocated = 0;
  2430.  
  2431.     if (!s->parse_args_state) {
  2432.         s->parse_args_state = tcc_mallocz(sizeof(ParseArgsState));
  2433.         cstr_new(&s->parse_args_state->linker_arg);
  2434.         is_allocated = 1;
  2435.     }
  2436.     pas = s->parse_args_state;
  2437.  
  2438.     ret = tcc_parse_args1(s, argc, argv);
  2439.  
  2440.     if (s->output_type == 0)
  2441.         s->output_type = TCC_OUTPUT_EXE;
  2442.  
  2443.     if (pas->pthread && s->output_type != TCC_OUTPUT_OBJ)
  2444.         tcc_set_options(s, "-lpthread");
  2445.  
  2446.     if (s->output_type == TCC_OUTPUT_EXE)
  2447.         tcc_set_linker(s, (const char *)pas->linker_arg.data);
  2448.  
  2449.     if (is_allocated) {
  2450.         cstr_free(&pas->linker_arg);
  2451.         tcc_free(pas);
  2452.         s->parse_args_state = NULL;
  2453.     }
  2454.     return ret;
  2455. }
  2456.  
  2457. LIBTCCAPI int tcc_set_options(TCCState *s, const char *str)
  2458. {
  2459.     const char *s1;
  2460.     char **argv, *arg;
  2461.     int argc, len;
  2462.     int ret;
  2463.  
  2464.     argc = 0, argv = NULL;
  2465.     for(;;) {
  2466.         while (is_space(*str))
  2467.             str++;
  2468.         if (*str == '\0')
  2469.             break;
  2470.         s1 = str;
  2471.         while (*str != '\0' && !is_space(*str))
  2472.             str++;
  2473.         len = str - s1;
  2474.         arg = tcc_malloc(len + 1);
  2475.         pstrncpy(arg, s1, len);
  2476.         dynarray_add((void ***)&argv, &argc, arg);
  2477.     }
  2478.     ret = tcc_parse_args(s, argc, argv);
  2479.     dynarray_reset(&argv, &argc);
  2480.     return ret;
  2481. }
  2482.  
  2483. PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time)
  2484. {
  2485.     double tt;
  2486.     tt = (double)total_time / 1000000.0;
  2487.     if (tt < 0.001)
  2488.         tt = 0.001;
  2489.     if (total_bytes < 1)
  2490.         total_bytes = 1;
  2491.     fprintf(stdout, "%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
  2492.            tok_ident - TOK_IDENT, total_lines, total_bytes,
  2493.            tt, (int)(total_lines / tt),
  2494.            total_bytes / tt / 1000000.0);
  2495. }
  2496.  
  2497. PUB_FUNC void tcc_set_environment(TCCState *s)
  2498. {
  2499.     char * path;
  2500.  
  2501.     path = getenv("C_INCLUDE_PATH");
  2502.     if(path != NULL) {
  2503.         tcc_add_include_path(s, path);
  2504.     }
  2505.     path = getenv("CPATH");
  2506.     if(path != NULL) {
  2507.         tcc_add_include_path(s, path);
  2508.     }
  2509.     path = getenv("LIBRARY_PATH");
  2510.     if(path != NULL) {
  2511.         tcc_add_library_path(s, path);
  2512.     }
  2513. }
  2514.