From 47e06c6d4e542e47fcbad69a78c2436a854a0779 Mon Sep 17 00:00:00 2001 From: gus knight Date: Mon, 27 Jul 2015 16:03:25 -0400 Subject: Reorganize the source tree. * Documentation is now in "docs". * Source code is now in "src". * Misc. fixes here and there so that everything still works. I think I got everything in this commit, but I only tested this on Linux (Make) and Windows (CMake), so I might've messed something up on other platforms... --- libtcc.c | 2322 -------------------------------------------------------------- 1 file changed, 2322 deletions(-) delete mode 100644 libtcc.c (limited to 'libtcc.c') diff --git a/libtcc.c b/libtcc.c deleted file mode 100644 index f4f01c2..0000000 --- a/libtcc.c +++ /dev/null @@ -1,2322 +0,0 @@ -/* - * TCC - Tiny C Compiler - * - * Copyright (c) 2001-2004 Fabrice Bellard - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "tcc.h" - -/********************************************************/ -/* global variables */ - -/* use GNU C extensions */ -ST_DATA int gnu_ext = 1; - -/* use TinyCC extensions */ -ST_DATA int tcc_ext = 1; - -/* XXX: get rid of this ASAP */ -ST_DATA struct TCCState *tcc_state; - -/********************************************************/ - -#ifdef ONE_SOURCE -#include "tccpp.c" -#include "tccgen.c" -#include "tccelf.c" -#include "tccrun.c" -#ifdef TCC_TARGET_I386 -#include "i386-gen.c" -#endif -#ifdef TCC_TARGET_ARM -#include "arm-gen.c" -#endif -#ifdef TCC_TARGET_ARM64 -#include "arm64-gen.c" -#endif -#ifdef TCC_TARGET_C67 -#include "c67-gen.c" -#endif -#ifdef TCC_TARGET_X86_64 -#include "x86_64-gen.c" -#endif -#ifdef CONFIG_TCC_ASM -#include "tccasm.c" -#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 -#include "i386-asm.c" -#endif -#endif -#ifdef TCC_TARGET_COFF -#include "tcccoff.c" -#endif -#ifdef TCC_TARGET_PE -#include "tccpe.c" -#endif -#endif /* ONE_SOURCE */ - -/********************************************************/ -#ifndef CONFIG_TCC_ASM -ST_FUNC void asm_instr(void) -{ - tcc_error("inline asm() not supported"); -} -ST_FUNC void asm_global_instr(void) -{ - tcc_error("inline asm() not supported"); -} -#endif - -/********************************************************/ -#ifdef _WIN32 -static char *normalize_slashes(char *path) -{ - char *p; - for (p = path; *p; ++p) - if (*p == '\\') - *p = '/'; - return path; -} - -static HMODULE tcc_module; - -/* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */ -static void tcc_set_lib_path_w32(TCCState *s) -{ - char path[1024], *p; - GetModuleFileNameA(tcc_module, path, sizeof path); - p = tcc_basename(normalize_slashes(strlwr(path))); - if (p - 5 > path && 0 == strncmp(p - 5, "/bin/", 5)) - p -= 5; - else if (p > path) - p--; - *p = 0; - tcc_set_lib_path(s, path); -} - -#ifdef TCC_TARGET_PE -static void tcc_add_systemdir(TCCState *s) -{ - char buf[1000]; - GetSystemDirectory(buf, sizeof buf); - tcc_add_library_path(s, normalize_slashes(buf)); -} -#endif - -#ifndef CONFIG_TCC_STATIC -void dlclose(void *p) -{ - FreeLibrary((HMODULE)p); -} -#endif - -#ifdef LIBTCC_AS_DLL -BOOL WINAPI DllMain (HINSTANCE hDll, DWORD dwReason, LPVOID lpReserved) -{ - if (DLL_PROCESS_ATTACH == dwReason) - tcc_module = hDll; - return TRUE; -} -#endif -#endif - -/********************************************************/ -/* copy a string and truncate it. */ -PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s) -{ - char *q, *q_end; - int c; - - if (buf_size > 0) { - q = buf; - q_end = buf + buf_size - 1; - while (q < q_end) { - c = *s++; - if (c == '\0') - break; - *q++ = c; - } - *q = '\0'; - } - return buf; -} - -/* strcat and truncate. */ -PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s) -{ - int len; - len = strlen(buf); - if (len < buf_size) - pstrcpy(buf + len, buf_size - len, s); - return buf; -} - -PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num) -{ - memcpy(out, in, num); - out[num] = '\0'; - return out; -} - -/* extract the basename of a file */ -PUB_FUNC char *tcc_basename(const char *name) -{ - char *p = strchr(name, 0); - while (p > name && !IS_DIRSEP(p[-1])) - --p; - return p; -} - -/* extract extension part of a file - * - * (if no extension, return pointer to end-of-string) - */ -PUB_FUNC char *tcc_fileextension (const char *name) -{ - char *b = tcc_basename(name); - char *e = strrchr(b, '.'); - return e ? e : strchr(b, 0); -} - -/********************************************************/ -/* memory management */ - -#undef free -#undef malloc -#undef realloc - -#ifndef MEM_DEBUG - -PUB_FUNC void tcc_free(void *ptr) -{ - free(ptr); -} - -PUB_FUNC void *tcc_malloc(unsigned long size) -{ - void *ptr; - ptr = malloc(size); - if (!ptr && size) - tcc_error("memory full (malloc)"); - return ptr; -} - -PUB_FUNC void *tcc_mallocz(unsigned long size) -{ - void *ptr; - ptr = tcc_malloc(size); - memset(ptr, 0, size); - return ptr; -} - -PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size) -{ - void *ptr1; - ptr1 = realloc(ptr, size); - if (!ptr1 && size) - tcc_error("memory full (realloc)"); - return ptr1; -} - -PUB_FUNC char *tcc_strdup(const char *str) -{ - char *ptr; - ptr = tcc_malloc(strlen(str) + 1); - strcpy(ptr, str); - return ptr; -} - -PUB_FUNC void tcc_memstats(int bench) -{ -} - -#else - -#define MEM_DEBUG_MAGIC1 0xFEEDDEB1 -#define MEM_DEBUG_MAGIC2 0xFEEDDEB2 -#define MEM_DEBUG_FILE_LEN 15 - -struct mem_debug_header { - size_t magic1; - size_t size; - struct mem_debug_header *prev; - struct mem_debug_header *next; - size_t line_num; - char file_name[MEM_DEBUG_FILE_LEN + 1]; - size_t magic2; -}; - -typedef struct mem_debug_header mem_debug_header_t; - -static mem_debug_header_t *mem_debug_chain; -static size_t mem_cur_size; -static size_t mem_max_size; - -PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line) -{ - void *ptr; - mem_debug_header_t *header; - - ptr = malloc(sizeof(mem_debug_header_t) + size); - if (!ptr) - tcc_error("memory full (malloc)"); - - mem_cur_size += size; - if (mem_cur_size > mem_max_size) - mem_max_size = mem_cur_size; - - header = (mem_debug_header_t *)ptr; - - header->magic1 = MEM_DEBUG_MAGIC1; - header->magic2 = MEM_DEBUG_MAGIC2; - header->size = size; - header->line_num = line; - - strncpy(header->file_name, file, MEM_DEBUG_FILE_LEN); - header->file_name[MEM_DEBUG_FILE_LEN] = 0; - - header->next = mem_debug_chain; - header->prev = NULL; - - if (header->next) - header->next->prev = header; - - mem_debug_chain = header; - - ptr = (char *)ptr + sizeof(mem_debug_header_t); - return ptr; -} - -PUB_FUNC void tcc_free_debug(void *ptr) -{ - mem_debug_header_t *header; - - if (!ptr) - return; - - ptr = (char *)ptr - sizeof(mem_debug_header_t); - header = (mem_debug_header_t *)ptr; - if (header->magic1 != MEM_DEBUG_MAGIC1 || - header->magic2 != MEM_DEBUG_MAGIC2 || - header->size == (size_t)-1 ) - { - tcc_error("tcc_free check failed"); - } - - mem_cur_size -= header->size; - header->size = (size_t)-1; - - if (header->next) - header->next->prev = header->prev; - - if (header->prev) - header->prev->next = header->next; - - if (header == mem_debug_chain) - mem_debug_chain = header->next; - - free(ptr); -} - - -PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line) -{ - void *ptr; - ptr = tcc_malloc_debug(size,file,line); - memset(ptr, 0, size); - return ptr; -} - -PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line) -{ - mem_debug_header_t *header; - int mem_debug_chain_update = 0; - - if (!ptr) { - ptr = tcc_malloc_debug(size, file, line); - return ptr; - } - - ptr = (char *)ptr - sizeof(mem_debug_header_t); - header = (mem_debug_header_t *)ptr; - if (header->magic1 != MEM_DEBUG_MAGIC1 || - header->magic2 != MEM_DEBUG_MAGIC2 || - header->size == (size_t)-1 ) - { - check_error: - tcc_error("tcc_realloc check failed"); - } - - mem_debug_chain_update = (header == mem_debug_chain); - - mem_cur_size -= header->size; - ptr = realloc(ptr, sizeof(mem_debug_header_t) + size); - if (!ptr) - tcc_error("memory full (realloc)"); - - header = (mem_debug_header_t *)ptr; - if (header->magic1 != MEM_DEBUG_MAGIC1 || - header->magic2 != MEM_DEBUG_MAGIC2) - { - goto check_error; - } - - mem_cur_size += size; - if (mem_cur_size > mem_max_size) - mem_max_size = mem_cur_size; - - header->size = size; - if (header->next) - header->next->prev = header; - - if (header->prev) - header->prev->next = header; - - if (mem_debug_chain_update) - mem_debug_chain = header; - - ptr = (char *)ptr + sizeof(mem_debug_header_t); - return ptr; -} - -PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line) -{ - char *ptr; - ptr = tcc_malloc_debug(strlen(str) + 1, file, line); - strcpy(ptr, str); - return ptr; -} - -PUB_FUNC void tcc_memstats(int bench) -{ - if (mem_cur_size) { - mem_debug_header_t *header = mem_debug_chain; - - fprintf(stderr, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n", - mem_cur_size, mem_max_size); - - while (header) { - fprintf(stderr, " file %s, line %u: %u bytes\n", - header->file_name, header->line_num, header->size); - header = header->next; - } - } - else if (bench) - fprintf(stderr, "mem_max_size= %d bytes\n", mem_max_size); -} - -#undef MEM_DEBUG_MAGIC1 -#undef MEM_DEBUG_MAGIC2 -#undef MEM_DEBUG_FILE_LEN - -#endif - -#define free(p) use_tcc_free(p) -#define malloc(s) use_tcc_malloc(s) -#define realloc(p, s) use_tcc_realloc(p, s) - -/********************************************************/ -/* dynarrays */ - -ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data) -{ - int nb, nb_alloc; - void **pp; - - nb = *nb_ptr; - pp = *ptab; - /* every power of two we double array size */ - if ((nb & (nb - 1)) == 0) { - if (!nb) - nb_alloc = 1; - else - nb_alloc = nb * 2; - pp = tcc_realloc(pp, nb_alloc * sizeof(void *)); - *ptab = pp; - } - pp[nb++] = data; - *nb_ptr = nb; -} - -ST_FUNC void dynarray_reset(void *pp, int *n) -{ - void **p; - for (p = *(void***)pp; *n; ++p, --*n) - if (*p) - tcc_free(*p); - tcc_free(*(void**)pp); - *(void**)pp = NULL; -} - -static void tcc_split_path(TCCState *s, void ***p_ary, int *p_nb_ary, const char *in) -{ - const char *p; - do { - int c; - CString str; - - cstr_new(&str); - for (p = in; c = *p, c != '\0' && c != PATHSEP; ++p) { - if (c == '{' && p[1] && p[2] == '}') { - c = p[1], p += 2; - if (c == 'B') - cstr_cat(&str, s->tcc_lib_path); - } else { - cstr_ccat(&str, c); - } - } - cstr_ccat(&str, '\0'); - dynarray_add(p_ary, p_nb_ary, str.data); - in = p+1; - } while (*p); -} - -/********************************************************/ - -ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags) -{ - Section *sec; - - sec = tcc_mallocz(sizeof(Section) + strlen(name)); - strcpy(sec->name, name); - sec->sh_type = sh_type; - sec->sh_flags = sh_flags; - switch(sh_type) { - case SHT_HASH: - case SHT_REL: - case SHT_RELA: - case SHT_DYNSYM: - case SHT_SYMTAB: - case SHT_DYNAMIC: - sec->sh_addralign = 4; - break; - case SHT_STRTAB: - sec->sh_addralign = 1; - break; - default: - sec->sh_addralign = 32; /* default conservative alignment */ - break; - } - - if (sh_flags & SHF_PRIVATE) { - dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec); - } else { - sec->sh_num = s1->nb_sections; - dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec); - } - - return sec; -} - -static void free_section(Section *s) -{ - tcc_free(s->data); -} - -/* realloc section and set its content to zero */ -ST_FUNC void section_realloc(Section *sec, unsigned long new_size) -{ - unsigned long size; - unsigned char *data; - - size = sec->data_allocated; - if (size == 0) - size = 1; - while (size < new_size) - size = size * 2; - data = tcc_realloc(sec->data, size); - memset(data + sec->data_allocated, 0, size - sec->data_allocated); - sec->data = data; - sec->data_allocated = size; -} - -/* reserve at least 'size' bytes in section 'sec' from - sec->data_offset. */ -ST_FUNC void *section_ptr_add(Section *sec, addr_t size) -{ - size_t offset, offset1; - - offset = sec->data_offset; - offset1 = offset + size; - if (offset1 > sec->data_allocated) - section_realloc(sec, offset1); - sec->data_offset = offset1; - return sec->data + offset; -} - -/* reserve at least 'size' bytes from section start */ -ST_FUNC void section_reserve(Section *sec, unsigned long size) -{ - if (size > sec->data_allocated) - section_realloc(sec, size); - if (size > sec->data_offset) - sec->data_offset = size; -} - -/* return a reference to a section, and create it if it does not - exists */ -ST_FUNC Section *find_section(TCCState *s1, const char *name) -{ - Section *sec; - int i; - for(i = 1; i < s1->nb_sections; i++) { - sec = s1->sections[i]; - if (!strcmp(name, sec->name)) - return sec; - } - /* sections are created as PROGBITS */ - return new_section(s1, name, SHT_PROGBITS, SHF_ALLOC); -} - -/* update sym->c so that it points to an external symbol in section - 'section' with value 'value' */ -ST_FUNC void put_extern_sym2(Sym *sym, Section *section, - addr_t value, unsigned long size, - int can_add_underscore) -{ - int sym_type, sym_bind, sh_num, info, other; - ElfW(Sym) *esym; - const char *name; - char buf1[256]; - -#ifdef CONFIG_TCC_BCHECK - char buf[32]; -#endif - - if (section == NULL) - sh_num = SHN_UNDEF; - else if (section == SECTION_ABS) - sh_num = SHN_ABS; - else - sh_num = section->sh_num; - - if ((sym->type.t & VT_BTYPE) == VT_FUNC) { - sym_type = STT_FUNC; - } else if ((sym->type.t & VT_BTYPE) == VT_VOID) { - sym_type = STT_NOTYPE; - } else { - sym_type = STT_OBJECT; - } - - if (sym->type.t & VT_STATIC) - sym_bind = STB_LOCAL; - else { - if (sym->type.t & VT_WEAK) - sym_bind = STB_WEAK; - else - sym_bind = STB_GLOBAL; - } - - if (!sym->c) { - name = get_tok_str(sym->v, NULL); -#ifdef CONFIG_TCC_BCHECK - if (tcc_state->do_bounds_check) { - /* XXX: avoid doing that for statics ? */ - /* if bound checking is activated, we change some function - names by adding the "__bound" prefix */ - switch(sym->v) { -#ifdef TCC_TARGET_PE - /* XXX: we rely only on malloc hooks */ - case TOK_malloc: - case TOK_free: - case TOK_realloc: - case TOK_memalign: - case TOK_calloc: -#endif - case TOK_memcpy: - case TOK_memmove: - case TOK_memset: - case TOK_strlen: - case TOK_strcpy: - case TOK_alloca: - strcpy(buf, "__bound_"); - strcat(buf, name); - name = buf; - break; - } - } -#endif - other = 0; - -#ifdef TCC_TARGET_PE - if (sym->type.t & VT_EXPORT) - other |= ST_PE_EXPORT; - if (sym_type == STT_FUNC && sym->type.ref) { - Sym *ref = sym->type.ref; - if (ref->a.func_export) - other |= ST_PE_EXPORT; - if (ref->a.func_call == FUNC_STDCALL && can_add_underscore) { - sprintf(buf1, "_%s@%d", name, ref->a.func_args * PTR_SIZE); - name = buf1; - other |= ST_PE_STDCALL; - can_add_underscore = 0; - } - } else { - if (find_elf_sym(tcc_state->dynsymtab_section, name)) - other |= ST_PE_IMPORT; - if (sym->type.t & VT_IMPORT) - other |= ST_PE_IMPORT; - } -#else - if (! (sym->type.t & VT_STATIC)) - other = (sym->type.t & VT_VIS_MASK) >> VT_VIS_SHIFT; -#endif - if (tcc_state->leading_underscore && can_add_underscore) { - buf1[0] = '_'; - pstrcpy(buf1 + 1, sizeof(buf1) - 1, name); - name = buf1; - } - if (sym->asm_label) { - name = sym->asm_label; - } - info = ELFW(ST_INFO)(sym_bind, sym_type); - sym->c = add_elf_sym(symtab_section, value, size, info, other, sh_num, name); - } else { - esym = &((ElfW(Sym) *)symtab_section->data)[sym->c]; - esym->st_value = value; - esym->st_size = size; - esym->st_shndx = sh_num; - } -} - -ST_FUNC void put_extern_sym(Sym *sym, Section *section, - addr_t value, unsigned long size) -{ - put_extern_sym2(sym, section, value, size, 1); -} - -/* add a new relocation entry to symbol 'sym' in section 's' */ -ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, - addr_t addend) -{ - int c = 0; - if (sym) { - if (0 == sym->c) - put_extern_sym(sym, NULL, 0, 0); - c = sym->c; - } - /* now we can add ELF relocation info */ - put_elf_reloca(symtab_section, s, offset, type, c, addend); -} - -ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type) -{ - greloca(s, sym, offset, type, 0); -} - -/********************************************************/ - -static void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap) -{ - int len; - len = strlen(buf); - vsnprintf(buf + len, buf_size - len, fmt, ap); -} - -static void strcat_printf(char *buf, int buf_size, const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - strcat_vprintf(buf, buf_size, fmt, ap); - va_end(ap); -} - -static void error1(TCCState *s1, int is_warning, const char *fmt, va_list ap) -{ - char buf[2048]; - BufferedFile **pf, *f; - - buf[0] = '\0'; - /* use upper file if inline ":asm:" or token ":paste:" */ - for (f = file; f && f->filename[0] == ':'; f = f->prev) - ; - if (f) { - for(pf = s1->include_stack; pf < s1->include_stack_ptr; pf++) - strcat_printf(buf, sizeof(buf), "In file included from %s:%d:\n", - (*pf)->filename, (*pf)->line_num); - if (f->line_num > 0) { - strcat_printf(buf, sizeof(buf), "%s:%d: ", - f->filename, f->line_num); - } else { - strcat_printf(buf, sizeof(buf), "%s: ", - f->filename); - } - } else { - strcat_printf(buf, sizeof(buf), "tcc: "); - } - if (is_warning) - strcat_printf(buf, sizeof(buf), "warning: "); - else - strcat_printf(buf, sizeof(buf), "error: "); - strcat_vprintf(buf, sizeof(buf), fmt, ap); - - if (!s1->error_func) { - /* default case: stderr */ - if (s1->ppfp) /* print a newline during tcc -E */ - fprintf(s1->ppfp, "\n"), fflush(s1->ppfp); - fprintf(stderr, "%s\n", buf); - fflush(stderr); /* print error/warning now (win32) */ - } else { - s1->error_func(s1->error_opaque, buf); - } - if (!is_warning || s1->warn_error) - s1->nb_errors++; -} - -LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque, - void (*error_func)(void *opaque, const char *msg)) -{ - s->error_opaque = error_opaque; - s->error_func = error_func; -} - -/* error without aborting current compilation */ -PUB_FUNC void tcc_error_noabort(const char *fmt, ...) -{ - TCCState *s1 = tcc_state; - va_list ap; - - va_start(ap, fmt); - error1(s1, 0, fmt, ap); - va_end(ap); -} - -PUB_FUNC void tcc_error(const char *fmt, ...) -{ - TCCState *s1 = tcc_state; - va_list ap; - - va_start(ap, fmt); - error1(s1, 0, fmt, ap); - va_end(ap); - /* better than nothing: in some cases, we accept to handle errors */ - if (s1->error_set_jmp_enabled) { - longjmp(s1->error_jmp_buf, 1); - } else { - /* XXX: eliminate this someday */ - exit(1); - } -} - -PUB_FUNC void tcc_warning(const char *fmt, ...) -{ - TCCState *s1 = tcc_state; - va_list ap; - - if (s1->warn_none) - return; - - va_start(ap, fmt); - error1(s1, 1, fmt, ap); - va_end(ap); -} - -/********************************************************/ -/* I/O layer */ - -ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen) -{ - BufferedFile *bf; - int buflen = initlen ? initlen : IO_BUF_SIZE; - - bf = tcc_mallocz(sizeof(BufferedFile) + buflen); - bf->buf_ptr = bf->buffer; - bf->buf_end = bf->buffer + initlen; - bf->buf_end[0] = CH_EOB; /* put eob symbol */ - pstrcpy(bf->filename, sizeof(bf->filename), filename); -#ifdef _WIN32 - normalize_slashes(bf->filename); -#endif - bf->line_num = 1; - bf->ifdef_stack_ptr = s1->ifdef_stack_ptr; - bf->fd = -1; - bf->prev = file; - file = bf; -} - -ST_FUNC void tcc_close(void) -{ - BufferedFile *bf = file; - if (bf->fd > 0) { - close(bf->fd); - total_lines += bf->line_num; - } - file = bf->prev; - tcc_free(bf); -} - -ST_FUNC int tcc_open(TCCState *s1, const char *filename) -{ - int fd; - if (strcmp(filename, "-") == 0) - fd = 0, filename = ""; - else - fd = open(filename, O_RDONLY | O_BINARY); - if ((s1->verbose == 2 && fd >= 0) || s1->verbose == 3) - printf("%s %*s%s\n", fd < 0 ? "nf":"->", - (int)(s1->include_stack_ptr - s1->include_stack), "", filename); - if (fd < 0) - return -1; - - tcc_open_bf(s1, filename, 0); - file->fd = fd; - return fd; -} - -/* compile the C file opened in 'file'. Return non zero if errors. */ -static int tcc_compile(TCCState *s1) -{ - Sym *define_start; - char buf[512]; - volatile int section_sym; - -#ifdef INC_DEBUG - printf("%s: **** new file\n", file->filename); -#endif - preprocess_init(s1); - - cur_text_section = NULL; - funcname = ""; - anon_sym = SYM_FIRST_ANOM; - - /* file info: full path + filename */ - section_sym = 0; /* avoid warning */ - if (s1->do_debug) { - section_sym = put_elf_sym(symtab_section, 0, 0, - ELFW(ST_INFO)(STB_LOCAL, STT_SECTION), 0, - text_section->sh_num, NULL); - getcwd(buf, sizeof(buf)); -#ifdef _WIN32 - normalize_slashes(buf); -#endif - pstrcat(buf, sizeof(buf), "/"); - put_stabs_r(buf, N_SO, 0, 0, - text_section->data_offset, text_section, section_sym); - put_stabs_r(file->filename, N_SO, 0, 0, - text_section->data_offset, text_section, section_sym); - } - /* an elf symbol of type STT_FILE must be put so that STB_LOCAL - symbols can be safely used */ - put_elf_sym(symtab_section, 0, 0, - ELFW(ST_INFO)(STB_LOCAL, STT_FILE), 0, - SHN_ABS, file->filename); - - /* define some often used types */ - int_type.t = VT_INT; - - char_pointer_type.t = VT_BYTE; - mk_pointer(&char_pointer_type); - -#if PTR_SIZE == 4 - size_type.t = VT_INT; -#else - size_type.t = VT_LLONG; -#endif - - func_old_type.t = VT_FUNC; - func_old_type.ref = sym_push(SYM_FIELD, &int_type, FUNC_CDECL, FUNC_OLD); -#ifdef TCC_TARGET_ARM - arm_init(s1); -#endif - -#if 0 - /* define 'void *alloca(unsigned int)' builtin function */ - { - Sym *s1; - - p = anon_sym++; - sym = sym_push(p, mk_pointer(VT_VOID), FUNC_CDECL, FUNC_NEW); - s1 = sym_push(SYM_FIELD, VT_UNSIGNED | VT_INT, 0, 0); - s1->next = NULL; - sym->next = s1; - sym_push(TOK_alloca, VT_FUNC | (p << VT_STRUCT_SHIFT), VT_CONST, 0); - } -#endif - - define_start = define_stack; - nocode_wanted = 1; - - if (setjmp(s1->error_jmp_buf) == 0) { - s1->nb_errors = 0; - s1->error_set_jmp_enabled = 1; - - ch = file->buf_ptr[0]; - tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF; - parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM | PARSE_FLAG_TOK_STR; - next(); - decl(VT_CONST); - if (tok != TOK_EOF) - expect("declaration"); - check_vstack(); - - /* end of translation unit info */ - if (s1->do_debug) { - put_stabs_r(NULL, N_SO, 0, 0, - text_section->data_offset, text_section, section_sym); - } - } - - s1->error_set_jmp_enabled = 0; - - /* reset define stack, but leave -Dsymbols (may be incorrect if - they are undefined) */ - free_defines(define_start); - - gen_inline_functions(); - - sym_pop(&global_stack, NULL); - sym_pop(&local_stack, NULL); - - return s1->nb_errors != 0 ? -1 : 0; -} - -LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str) -{ - int len, ret; - - len = strlen(str); - tcc_open_bf(s, "", len); - memcpy(file->buffer, str, len); - ret = tcc_compile(s); - tcc_close(); - return ret; -} - -/* define a preprocessor symbol. A value can also be provided with the '=' operator */ -LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value) -{ - int len1, len2; - /* default value */ - if (!value) - value = "1"; - len1 = strlen(sym); - len2 = strlen(value); - - /* init file structure */ - tcc_open_bf(s1, "", len1 + len2 + 1); - memcpy(file->buffer, sym, len1); - file->buffer[len1] = ' '; - memcpy(file->buffer + len1 + 1, value, len2); - - /* parse with define parser */ - ch = file->buf_ptr[0]; - next_nomacro(); - parse_define(); - - tcc_close(); -} - -/* undefine a preprocessor symbol */ -LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym) -{ - TokenSym *ts; - Sym *s; - ts = tok_alloc(sym, strlen(sym)); - s = define_find(ts->tok); - /* undefine symbol by putting an invalid name */ - if (s) - define_undef(s); -} - -/* cleanup all static data used during compilation */ -static void tcc_cleanup(void) -{ - if (NULL == tcc_state) - return; - tcc_state = NULL; - - preprocess_delete(); - - /* free sym_pools */ - dynarray_reset(&sym_pools, &nb_sym_pools); - /* string buffer */ - cstr_free(&tokcstr); - /* reset symbol stack */ - sym_free_first = NULL; -} - -LIBTCCAPI TCCState *tcc_new(void) -{ - TCCState *s; - char buffer[100]; - int a,b,c; - - tcc_cleanup(); - - s = tcc_mallocz(sizeof(TCCState)); - if (!s) - return NULL; - tcc_state = s; -#ifdef _WIN32 - tcc_set_lib_path_w32(s); -#else - tcc_set_lib_path(s, CONFIG_TCCDIR); -#endif - s->output_type = 0; - preprocess_new(); - s->include_stack_ptr = s->include_stack; - - /* we add dummy defines for some special macros to speed up tests - and to have working defined() */ - define_push(TOK___LINE__, MACRO_OBJ, NULL, NULL); - define_push(TOK___FILE__, MACRO_OBJ, NULL, NULL); - define_push(TOK___DATE__, MACRO_OBJ, NULL, NULL); - define_push(TOK___TIME__, MACRO_OBJ, NULL, NULL); - - /* define __TINYC__ 92X */ - sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c); - sprintf(buffer, "%d", a*10000 + b*100 + c); - tcc_define_symbol(s, "__TINYC__", buffer); - - /* standard defines */ - tcc_define_symbol(s, "__STDC__", NULL); - tcc_define_symbol(s, "__STDC_VERSION__", "199901L"); - tcc_define_symbol(s, "__STDC_HOSTED__", NULL); - - /* target defines */ -#if defined(TCC_TARGET_I386) - tcc_define_symbol(s, "__i386__", NULL); - tcc_define_symbol(s, "__i386", NULL); - tcc_define_symbol(s, "i386", NULL); -#elif defined(TCC_TARGET_X86_64) - tcc_define_symbol(s, "__x86_64__", NULL); -#elif defined(TCC_TARGET_ARM) - tcc_define_symbol(s, "__ARM_ARCH_4__", NULL); - tcc_define_symbol(s, "__arm_elf__", NULL); - tcc_define_symbol(s, "__arm_elf", NULL); - tcc_define_symbol(s, "arm_elf", NULL); - tcc_define_symbol(s, "__arm__", NULL); - tcc_define_symbol(s, "__arm", NULL); - tcc_define_symbol(s, "arm", NULL); - tcc_define_symbol(s, "__APCS_32__", NULL); - tcc_define_symbol(s, "__ARMEL__", NULL); -#if defined(TCC_ARM_EABI) - tcc_define_symbol(s, "__ARM_EABI__", NULL); -#endif -#if defined(TCC_ARM_HARDFLOAT) - s->float_abi = ARM_HARD_FLOAT; - tcc_define_symbol(s, "__ARM_PCS_VFP", NULL); -#else - s->float_abi = ARM_SOFTFP_FLOAT; -#endif -#elif defined(TCC_TARGET_ARM64) - tcc_define_symbol(s, "__aarch64__", NULL); -#endif - -#ifdef TCC_TARGET_PE - tcc_define_symbol(s, "_WIN32", NULL); -# ifdef TCC_TARGET_X86_64 - tcc_define_symbol(s, "_WIN64", NULL); -# endif -#else - tcc_define_symbol(s, "__unix__", NULL); - tcc_define_symbol(s, "__unix", NULL); - tcc_define_symbol(s, "unix", NULL); -# if defined(__linux) - tcc_define_symbol(s, "__linux__", NULL); - tcc_define_symbol(s, "__linux", NULL); -# endif -# if defined(__FreeBSD__) -# define str(s) #s - tcc_define_symbol(s, "__FreeBSD__", str( __FreeBSD__)); -# undef str -# endif -# if defined(__FreeBSD_kernel__) - tcc_define_symbol(s, "__FreeBSD_kernel__", NULL); -# endif -#endif - - /* TinyCC & gcc defines */ -#if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64 - tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long"); - tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long"); -#else - tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long"); - tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long"); -#endif - -#ifdef TCC_TARGET_PE - tcc_define_symbol(s, "__WCHAR_TYPE__", "unsigned short"); - tcc_define_symbol(s, "__WINT_TYPE__", "unsigned short"); -#else - tcc_define_symbol(s, "__WCHAR_TYPE__", "int"); - /* wint_t is unsigned int by default, but (signed) int on BSDs - and unsigned short on windows. Other OSes might have still - other conventions, sigh. */ -#if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) - tcc_define_symbol(s, "__WINT_TYPE__", "int"); -#else - tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int"); -#endif -#endif - -#ifndef TCC_TARGET_PE - /* glibc defines */ - tcc_define_symbol(s, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)"); - tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW"); - /* paths for crt objects */ - tcc_split_path(s, (void ***)&s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX); -#endif - - /* no section zero */ - dynarray_add((void ***)&s->sections, &s->nb_sections, NULL); - - /* create standard sections */ - text_section = new_section(s, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR); - data_section = new_section(s, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); - bss_section = new_section(s, ".bss", SHT_NOBITS, SHF_ALLOC | SHF_WRITE); - - /* symbols are always generated for linking stage */ - symtab_section = new_symtab(s, ".symtab", SHT_SYMTAB, 0, - ".strtab", - ".hashtab", SHF_PRIVATE); - strtab_section = symtab_section->link; - s->symtab = symtab_section; - - /* private symbol table for dynamic symbols */ - s->dynsymtab_section = new_symtab(s, ".dynsymtab", SHT_SYMTAB, SHF_PRIVATE, - ".dynstrtab", - ".dynhashtab", SHF_PRIVATE); - s->alacarte_link = 1; - s->nocommon = 1; - s->warn_implicit_function_declaration = 1; - -#ifdef CHAR_IS_UNSIGNED - s->char_is_unsigned = 1; -#endif - /* enable this if you want symbols with leading underscore on windows: */ -#if 0 /* def TCC_TARGET_PE */ - s->leading_underscore = 1; -#endif -#ifdef TCC_TARGET_I386 - s->seg_size = 32; -#endif -#ifdef TCC_IS_NATIVE - s->runtime_main = "main"; -#endif - return s; -} - -LIBTCCAPI void tcc_delete(TCCState *s1) -{ - int i; - int bench = s1->do_bench; - - tcc_cleanup(); - - /* close a preprocessor output */ - if (s1->ppfp && s1->ppfp != stdout) - fclose(s1->ppfp); - - /* free all sections */ - for(i = 1; i < s1->nb_sections; i++) - free_section(s1->sections[i]); - dynarray_reset(&s1->sections, &s1->nb_sections); - - for(i = 0; i < s1->nb_priv_sections; i++) - free_section(s1->priv_sections[i]); - dynarray_reset(&s1->priv_sections, &s1->nb_priv_sections); - - /* free any loaded DLLs */ -#ifdef TCC_IS_NATIVE - for ( i = 0; i < s1->nb_loaded_dlls; i++) { - DLLReference *ref = s1->loaded_dlls[i]; - if ( ref->handle ) - dlclose(ref->handle); - } -#endif - - /* free loaded dlls array */ - dynarray_reset(&s1->loaded_dlls, &s1->nb_loaded_dlls); - - /* free library paths */ - dynarray_reset(&s1->library_paths, &s1->nb_library_paths); - dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths); - - /* free include paths */ - dynarray_reset(&s1->cached_includes, &s1->nb_cached_includes); - dynarray_reset(&s1->include_paths, &s1->nb_include_paths); - dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths); - - tcc_free(s1->tcc_lib_path); - tcc_free(s1->soname); - tcc_free(s1->rpath); - tcc_free(s1->init_symbol); - tcc_free(s1->fini_symbol); - tcc_free(s1->outfile); - tcc_free(s1->deps_outfile); - dynarray_reset(&s1->files, &s1->nb_files); - dynarray_reset(&s1->target_deps, &s1->nb_target_deps); - dynarray_reset(&s1->pragma_libs, &s1->nb_pragma_libs); - -#ifdef TCC_IS_NATIVE -# ifdef HAVE_SELINUX - munmap (s1->write_mem, s1->mem_size); - munmap (s1->runtime_mem, s1->mem_size); -# else - tcc_free(s1->runtime_mem); -# endif -#endif - - tcc_free(s1->sym_attrs); - tcc_free(s1); - tcc_memstats(bench); -} - -LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname) -{ - tcc_split_path(s, (void ***)&s->include_paths, &s->nb_include_paths, pathname); - return 0; -} - -LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname) -{ - tcc_split_path(s, (void ***)&s->sysinclude_paths, &s->nb_sysinclude_paths, pathname); - return 0; -} - -ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype) -{ - ElfW(Ehdr) ehdr; - int fd, ret, size; - - parse_flags = 0; -#ifdef CONFIG_TCC_ASM - /* if .S file, define __ASSEMBLER__ like gcc does */ - if ((filetype == TCC_FILETYPE_ASM) || (filetype == TCC_FILETYPE_ASM_PP)) { - tcc_define_symbol(s1, "__ASSEMBLER__", NULL); - parse_flags = PARSE_FLAG_ASM_FILE; - } -#endif - - /* open the file */ - ret = tcc_open(s1, filename); - if (ret < 0) { - if (flags & AFF_PRINT_ERROR) - tcc_error_noabort("file '%s' not found", filename); - return ret; - } - - /* update target deps */ - dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps, - tcc_strdup(filename)); - - if (flags & AFF_PREPROCESS) { - ret = tcc_preprocess(s1); - goto the_end; - } - - if (filetype == TCC_FILETYPE_C) { - /* C file assumed */ - ret = tcc_compile(s1); - goto the_end; - } - -#ifdef CONFIG_TCC_ASM - if (filetype == TCC_FILETYPE_ASM_PP) { - /* non preprocessed assembler */ - ret = tcc_assemble(s1, 1); - goto the_end; - } - - if (filetype == TCC_FILETYPE_ASM) { - /* preprocessed assembler */ - ret = tcc_assemble(s1, 0); - goto the_end; - } -#endif - - fd = file->fd; - /* assume executable format: auto guess file type */ - size = read(fd, &ehdr, sizeof(ehdr)); - lseek(fd, 0, SEEK_SET); - if (size <= 0) { - tcc_error_noabort("could not read header"); - goto the_end; - } - - if (size == sizeof(ehdr) && - ehdr.e_ident[0] == ELFMAG0 && - ehdr.e_ident[1] == ELFMAG1 && - ehdr.e_ident[2] == ELFMAG2 && - ehdr.e_ident[3] == ELFMAG3) { - - /* do not display line number if error */ - file->line_num = 0; - if (ehdr.e_type == ET_REL) { - ret = tcc_load_object_file(s1, fd, 0); - goto the_end; - - } -#ifndef TCC_TARGET_PE - if (ehdr.e_type == ET_DYN) { - if (s1->output_type == TCC_OUTPUT_MEMORY) { -#ifdef TCC_IS_NATIVE - void *h; - h = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY); - if (h) -#endif - ret = 0; - } else { - ret = tcc_load_dll(s1, fd, filename, - (flags & AFF_REFERENCED_DLL) != 0); - } - goto the_end; - } -#endif - tcc_error_noabort("unrecognized ELF file"); - goto the_end; - } - - if (memcmp((char *)&ehdr, ARMAG, 8) == 0) { - file->line_num = 0; /* do not display line number if error */ - ret = tcc_load_archive(s1, fd); - goto the_end; - } - -#ifdef TCC_TARGET_COFF - if (*(uint16_t *)(&ehdr) == COFF_C67_MAGIC) { - ret = tcc_load_coff(s1, fd); - goto the_end; - } -#endif - -#ifdef TCC_TARGET_PE - ret = pe_load_file(s1, filename, fd); -#else - /* as GNU ld, consider it is an ld script if not recognized */ - ret = tcc_load_ldscript(s1); -#endif - if (ret < 0) - tcc_error_noabort("unrecognized file type"); - -the_end: - tcc_close(); - return ret; -} - -LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename, int filetype) -{ - if (s->output_type == TCC_OUTPUT_PREPROCESS) - return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR | AFF_PREPROCESS, filetype); - else - return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR, filetype); -} - -LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname) -{ - tcc_split_path(s, (void ***)&s->library_paths, &s->nb_library_paths, pathname); - return 0; -} - -static int tcc_add_library_internal(TCCState *s, const char *fmt, - const char *filename, int flags, char **paths, int nb_paths) -{ - char buf[1024]; - int i; - - for(i = 0; i < nb_paths; i++) { - snprintf(buf, sizeof(buf), fmt, paths[i], filename); - if (tcc_add_file_internal(s, buf, flags, TCC_FILETYPE_BINARY) == 0) - return 0; - } - return -1; -} - -#ifndef TCC_TARGET_PE -/* find and load a dll. Return non zero if not found */ -/* XXX: add '-rpath' option support ? */ -ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags) -{ - return tcc_add_library_internal(s, "%s/%s", filename, flags, - s->library_paths, s->nb_library_paths); -} -#endif - -ST_FUNC int tcc_add_crt(TCCState *s, const char *filename) -{ - if (-1 == tcc_add_library_internal(s, "%s/%s", - filename, 0, s->crt_paths, s->nb_crt_paths)) - tcc_error_noabort("file '%s' not found", filename); - return 0; -} - -/* the library name is the same as the argument of the '-l' option */ -LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname) -{ -#ifdef TCC_TARGET_PE - const char *libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL }; - const char **pp = s->static_link ? libs + 4 : libs; -#else - const char *libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL }; - const char **pp = s->static_link ? libs + 1 : libs; -#endif - while (*pp) { - if (0 == tcc_add_library_internal(s, *pp, - libraryname, 0, s->library_paths, s->nb_library_paths)) - return 0; - ++pp; - } - return -1; -} - -PUB_FUNC int tcc_add_library_err(TCCState *s, const char *libname) -{ - int ret = tcc_add_library(s, libname); - if (ret < 0) - tcc_error_noabort("cannot find library 'lib%s'", libname); - return ret; -} - -/* habdle #pragma comment(lib,) */ -ST_FUNC void tcc_add_pragma_libs(TCCState *s1) -{ - int i; - for (i = 0; i < s1->nb_pragma_libs; i++) - tcc_add_library_err(s1, s1->pragma_libs[i]); -} - -LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val) -{ -#ifdef TCC_TARGET_PE - /* On x86_64 'val' might not be reachable with a 32bit offset. - So it is handled here as if it were in a DLL. */ - pe_putimport(s, 0, name, (uintptr_t)val); -#else - add_elf_sym(symtab_section, (uintptr_t)val, 0, - ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, - SHN_ABS, name); -#endif - return 0; -} - -LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type) -{ - s->output_type = output_type; - - if (!s->nostdinc) { - /* default include paths */ - /* -isystem paths have already been handled */ - tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS); - } - - /* if bound checking, then add corresponding sections */ -#ifdef CONFIG_TCC_BCHECK - if (s->do_bounds_check) { - /* define symbol */ - tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL); - /* create bounds sections */ - bounds_section = new_section(s, ".bounds", - SHT_PROGBITS, SHF_ALLOC); - lbounds_section = new_section(s, ".lbounds", - SHT_PROGBITS, SHF_ALLOC); - } -#endif - - if (s->char_is_unsigned) { - tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL); - } - - /* add debug sections */ - if (s->do_debug) { - /* stab symbols */ - stab_section = new_section(s, ".stab", SHT_PROGBITS, 0); - stab_section->sh_entsize = sizeof(Stab_Sym); - stabstr_section = new_section(s, ".stabstr", SHT_STRTAB, 0); - put_elf_str(stabstr_section, ""); - stab_section->link = stabstr_section; - /* put first entry */ - put_stabs("", 0, 0, 0, 0); - } - - tcc_add_library_path(s, CONFIG_TCC_LIBPATHS); -#ifdef TCC_TARGET_PE -# ifdef _WIN32 - tcc_add_systemdir(s); -# endif -#else - /* add libc crt1/crti objects */ - if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) && - !s->nostdlib) { - if (output_type != TCC_OUTPUT_DLL) - tcc_add_crt(s, "crt1.o"); - tcc_add_crt(s, "crti.o"); - } -#endif - -#ifdef CONFIG_TCC_BCHECK - if (s->do_bounds_check && (output_type == TCC_OUTPUT_EXE)) - { - /* force a bcheck.o linking */ - addr_t func = TOK___bound_init; - Sym *sym = external_global_sym(func, &func_old_type, 0); - if (!sym->c) - put_extern_sym(sym, NULL, 0, 0); - } -#endif - - if (s->output_type == TCC_OUTPUT_PREPROCESS) - print_defines(); - - return 0; -} - -LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path) -{ - tcc_free(s->tcc_lib_path); - s->tcc_lib_path = tcc_strdup(path); -} - -#define WD_ALL 0x0001 /* warning is activated when using -Wall */ -#define FD_INVERT 0x0002 /* invert value before storing */ - -typedef struct FlagDef { - uint16_t offset; - uint16_t flags; - const char *name; -} FlagDef; - -static const FlagDef warning_defs[] = { - { offsetof(TCCState, warn_unsupported), 0, "unsupported" }, - { offsetof(TCCState, warn_write_strings), 0, "write-strings" }, - { offsetof(TCCState, warn_error), 0, "error" }, - { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL, - "implicit-function-declaration" }, -}; - -ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, int nb_flags, - const char *name, int value) -{ - int i; - const FlagDef *p; - const char *r; - - r = name; - if (r[0] == 'n' && r[1] == 'o' && r[2] == '-') { - r += 3; - value = !value; - } - for(i = 0, p = flags; i < nb_flags; i++, p++) { - if (!strcmp(r, p->name)) - goto found; - } - return -1; - found: - if (p->flags & FD_INVERT) - value = !value; - *(int *)((uint8_t *)s + p->offset) = value; - return 0; -} - -/* set/reset a warning */ -static int tcc_set_warning(TCCState *s, const char *warning_name, int value) -{ - int i; - const FlagDef *p; - - if (!strcmp(warning_name, "all")) { - for(i = 0, p = warning_defs; i < countof(warning_defs); i++, p++) { - if (p->flags & WD_ALL) - *(int *)((uint8_t *)s + p->offset) = 1; - } - return 0; - } else { - return set_flag(s, warning_defs, countof(warning_defs), - warning_name, value); - } -} - -static const FlagDef flag_defs[] = { - { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" }, - { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" }, - { offsetof(TCCState, nocommon), FD_INVERT, "common" }, - { offsetof(TCCState, leading_underscore), 0, "leading-underscore" }, - { offsetof(TCCState, ms_extensions), 0, "ms-extensions" }, - { offsetof(TCCState, old_struct_init_code), 0, "old-struct-init-code" }, - { offsetof(TCCState, dollars_in_identifiers), 0, "dollars-in-identifiers" }, -}; - -/* set/reset a flag */ -static int tcc_set_flag(TCCState *s, const char *flag_name, int value) -{ - return set_flag(s, flag_defs, countof(flag_defs), - flag_name, value); -} - - -static int strstart(const char *val, const char **str) -{ - const char *p, *q; - p = *str; - q = val; - while (*q) { - if (*p != *q) - return 0; - p++; - q++; - } - *str = p; - return 1; -} - -/* Like strstart, but automatically takes into account that ld options can - * - * - start with double or single dash (e.g. '--soname' or '-soname') - * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so' - * or '-Wl,-soname=x.so') - * - * you provide `val` always in 'option[=]' form (no leading -) - */ -static int link_option(const char *str, const char *val, const char **ptr) -{ - const char *p, *q; - - /* there should be 1 or 2 dashes */ - if (*str++ != '-') - return 0; - if (*str == '-') - str++; - - /* then str & val should match (potentialy up to '=') */ - p = str; - q = val; - - while (*q != '\0' && *q != '=') { - if (*p != *q) - return 0; - p++; - q++; - } - - /* '=' near eos means ',' or '=' is ok */ - if (*q == '=') { - if (*p != ',' && *p != '=') - return 0; - p++; - q++; - } - - if (ptr) - *ptr = p; - return 1; -} - -static const char *skip_linker_arg(const char **str) -{ - const char *s1 = *str; - const char *s2 = strchr(s1, ','); - *str = s2 ? s2++ : (s2 = s1 + strlen(s1)); - return s2; -} - -static char *copy_linker_arg(const char *p) -{ - const char *q = p; - skip_linker_arg(&q); - return pstrncpy(tcc_malloc(q - p + 1), p, q - p); -} - -/* set linker options */ -static int tcc_set_linker(TCCState *s, const char *option) -{ - while (option && *option) { - - const char *p = option; - char *end = NULL; - int ignoring = 0; - - if (link_option(option, "Bsymbolic", &p)) { - s->symbolic = 1; - } else if (link_option(option, "nostdlib", &p)) { - s->nostdlib = 1; - } else if (link_option(option, "fini=", &p)) { - s->fini_symbol = copy_linker_arg(p); - ignoring = 1; - } else if (link_option(option, "image-base=", &p) - || link_option(option, "Ttext=", &p)) { - s->text_addr = strtoull(p, &end, 16); - s->has_text_addr = 1; - } else if (link_option(option, "init=", &p)) { - s->init_symbol = copy_linker_arg(p); - ignoring = 1; - } else if (link_option(option, "oformat=", &p)) { -#if defined(TCC_TARGET_PE) - if (strstart("pe-", &p)) { -#elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) - if (strstart("elf64-", &p)) { -#else - if (strstart("elf32-", &p)) { -#endif - s->output_format = TCC_OUTPUT_FORMAT_ELF; - } else if (!strcmp(p, "binary")) { - s->output_format = TCC_OUTPUT_FORMAT_BINARY; -#ifdef TCC_TARGET_COFF - } else if (!strcmp(p, "coff")) { - s->output_format = TCC_OUTPUT_FORMAT_COFF; -#endif - } else - goto err; - - } else if (link_option(option, "as-needed", &p)) { - ignoring = 1; - } else if (link_option(option, "O", &p)) { - ignoring = 1; - } else if (link_option(option, "rpath=", &p)) { - s->rpath = copy_linker_arg(p); - } else if (link_option(option, "section-alignment=", &p)) { - s->section_align = strtoul(p, &end, 16); - } else if (link_option(option, "soname=", &p)) { - s->soname = copy_linker_arg(p); -#ifdef TCC_TARGET_PE - } else if (link_option(option, "file-alignment=", &p)) { - s->pe_file_align = strtoul(p, &end, 16); - } else if (link_option(option, "stack=", &p)) { - s->pe_stack_size = strtoul(p, &end, 10); - } else if (link_option(option, "subsystem=", &p)) { -#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64) - if (!strcmp(p, "native")) { - s->pe_subsystem = 1; - } else if (!strcmp(p, "console")) { - s->pe_subsystem = 3; - } else if (!strcmp(p, "gui")) { - s->pe_subsystem = 2; - } else if (!strcmp(p, "posix")) { - s->pe_subsystem = 7; - } else if (!strcmp(p, "efiapp")) { - s->pe_subsystem = 10; - } else if (!strcmp(p, "efiboot")) { - s->pe_subsystem = 11; - } else if (!strcmp(p, "efiruntime")) { - s->pe_subsystem = 12; - } else if (!strcmp(p, "efirom")) { - s->pe_subsystem = 13; -#elif defined(TCC_TARGET_ARM) - if (!strcmp(p, "wince")) { - s->pe_subsystem = 9; -#endif - } else - goto err; -#endif - } else - goto err; - - if (ignoring && s->warn_unsupported) err: { - char buf[100], *e; - pstrcpy(buf, sizeof buf, e = copy_linker_arg(option)), tcc_free(e); - if (ignoring) - tcc_warning("unsupported linker option '%s'", buf); - else - tcc_error("unsupported linker option '%s'", buf); - } - option = skip_linker_arg(&p); - } - return 0; -} - -typedef struct TCCOption { - const char *name; - uint16_t index; - uint16_t flags; -} TCCOption; - -enum { - TCC_OPTION_HELP, - TCC_OPTION_I, - TCC_OPTION_D, - TCC_OPTION_U, - TCC_OPTION_P, - TCC_OPTION_L, - TCC_OPTION_B, - TCC_OPTION_l, - TCC_OPTION_bench, - TCC_OPTION_bt, - TCC_OPTION_b, - TCC_OPTION_g, - TCC_OPTION_c, - TCC_OPTION_dumpversion, - TCC_OPTION_d, - TCC_OPTION_float_abi, - TCC_OPTION_static, - TCC_OPTION_std, - TCC_OPTION_shared, - TCC_OPTION_soname, - TCC_OPTION_o, - TCC_OPTION_r, - TCC_OPTION_s, - TCC_OPTION_traditional, - TCC_OPTION_Wl, - TCC_OPTION_W, - TCC_OPTION_O, - TCC_OPTION_m, - TCC_OPTION_f, - TCC_OPTION_isystem, - TCC_OPTION_iwithprefix, - TCC_OPTION_nostdinc, - TCC_OPTION_nostdlib, - TCC_OPTION_print_search_dirs, - TCC_OPTION_rdynamic, - TCC_OPTION_pedantic, - TCC_OPTION_pthread, - TCC_OPTION_run, - TCC_OPTION_v, - TCC_OPTION_w, - TCC_OPTION_pipe, - TCC_OPTION_E, - TCC_OPTION_MD, - TCC_OPTION_MF, - TCC_OPTION_x, -}; - -#define TCC_OPTION_HAS_ARG 0x0001 -#define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */ - -static const TCCOption tcc_options[] = { - { "h", TCC_OPTION_HELP, 0 }, - { "-help", TCC_OPTION_HELP, 0 }, - { "?", TCC_OPTION_HELP, 0 }, - { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG }, - { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG }, - { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG }, - { "P", TCC_OPTION_P, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG }, - { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG }, - { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "bench", TCC_OPTION_bench, 0 }, -#ifdef CONFIG_TCC_BACKTRACE - { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG }, -#endif -#ifdef CONFIG_TCC_BCHECK - { "b", TCC_OPTION_b, 0 }, -#endif - { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "c", TCC_OPTION_c, 0 }, - { "dumpversion", TCC_OPTION_dumpversion, 0}, - { "d", TCC_OPTION_d, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, -#ifdef TCC_TARGET_ARM - { "mfloat-abi", TCC_OPTION_float_abi, TCC_OPTION_HAS_ARG }, -#endif - { "static", TCC_OPTION_static, 0 }, - { "std", TCC_OPTION_std, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "shared", TCC_OPTION_shared, 0 }, - { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG }, - { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG }, - { "pedantic", TCC_OPTION_pedantic, 0}, - { "pthread", TCC_OPTION_pthread, 0}, - { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "rdynamic", TCC_OPTION_rdynamic, 0 }, - { "r", TCC_OPTION_r, 0 }, - { "s", TCC_OPTION_s, 0 }, - { "traditional", TCC_OPTION_traditional, 0 }, - { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG }, - { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG }, - { "iwithprefix", TCC_OPTION_iwithprefix, TCC_OPTION_HAS_ARG }, - { "nostdinc", TCC_OPTION_nostdinc, 0 }, - { "nostdlib", TCC_OPTION_nostdlib, 0 }, - { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 }, - { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, - { "w", TCC_OPTION_w, 0 }, - { "pipe", TCC_OPTION_pipe, 0}, - { "E", TCC_OPTION_E, 0}, - { "MD", TCC_OPTION_MD, 0}, - { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG }, - { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG }, - { NULL, 0, 0 }, -}; - -static void parse_option_D(TCCState *s1, const char *optarg) -{ - char *sym = tcc_strdup(optarg); - char *value = strchr(sym, '='); - if (value) - *value++ = '\0'; - tcc_define_symbol(s1, sym, value); - tcc_free(sym); -} - -static void args_parser_add_file(TCCState *s, const char* filename, int filetype) -{ - int len = strlen(filename); - char *p = tcc_malloc(len + 2); - if (filetype) { - *p = filetype; - } - else { - /* use a file extension to detect a filetype */ - const char *ext = tcc_fileextension(filename); - if (ext[0]) { - ext++; - if (!strcmp(ext, "S")) - *p = TCC_FILETYPE_ASM_PP; - else - if (!strcmp(ext, "s")) - *p = TCC_FILETYPE_ASM; - else - if (!PATHCMP(ext, "c") || !PATHCMP(ext, "i")) - *p = TCC_FILETYPE_C; - else - *p = TCC_FILETYPE_BINARY; - } - else { - *p = TCC_FILETYPE_C; - } - } - strcpy(p+1, filename); - dynarray_add((void ***)&s->files, &s->nb_files, p); -} - -PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv) -{ - const TCCOption *popt; - const char *optarg, *r; - int run = 0; - int pthread = 0; - int optind = 0; - int filetype = 0; - - /* collect -Wl options for input such as "-Wl,-rpath -Wl," */ - CString linker_arg; - cstr_new(&linker_arg); - - while (optind < argc) { - - r = argv[optind++]; - if (r[0] != '-' || r[1] == '\0') { - args_parser_add_file(s, r, filetype); - if (run) { - optind--; - /* argv[0] will be this file */ - break; - } - continue; - } - - /* find option in table */ - for(popt = tcc_options; ; ++popt) { - const char *p1 = popt->name; - const char *r1 = r + 1; - if (p1 == NULL) - tcc_error("invalid option -- '%s'", r); - if (!strstart(p1, &r1)) - continue; - optarg = r1; - if (popt->flags & TCC_OPTION_HAS_ARG) { - if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) { - if (optind >= argc) - tcc_error("argument to '%s' is missing", r); - optarg = argv[optind++]; - } - } else if (*r1 != '\0') - continue; - break; - } - - switch(popt->index) { - case TCC_OPTION_HELP: - return 0; - case TCC_OPTION_I: - tcc_add_include_path(s, optarg); - break; - case TCC_OPTION_D: - parse_option_D(s, optarg); - break; - case TCC_OPTION_U: - tcc_undefine_symbol(s, optarg); - break; - case TCC_OPTION_L: - tcc_add_library_path(s, optarg); - break; - case TCC_OPTION_B: - /* set tcc utilities path (mainly for tcc development) */ - tcc_set_lib_path(s, optarg); - break; - case TCC_OPTION_l: - args_parser_add_file(s, r, TCC_FILETYPE_BINARY); - s->nb_libraries++; - break; - case TCC_OPTION_pthread: - parse_option_D(s, "_REENTRANT"); - pthread = 1; - break; - case TCC_OPTION_bench: - s->do_bench = 1; - break; -#ifdef CONFIG_TCC_BACKTRACE - case TCC_OPTION_bt: - tcc_set_num_callers(atoi(optarg)); - break; -#endif -#ifdef CONFIG_TCC_BCHECK - case TCC_OPTION_b: - s->do_bounds_check = 1; - s->do_debug = 1; - break; -#endif - case TCC_OPTION_g: - s->do_debug = 1; - break; - case TCC_OPTION_c: - if (s->output_type) - tcc_warning("-c: some compiler action already specified (%d)", s->output_type); - s->output_type = TCC_OUTPUT_OBJ; - break; - case TCC_OPTION_d: - if (*optarg == 'D') - s->dflag = 1; - else { - if (s->warn_unsupported) - goto unsupported_option; - tcc_error("invalid option -- '%s'", r); - } - break; -#ifdef TCC_TARGET_ARM - case TCC_OPTION_float_abi: - /* tcc doesn't support soft float yet */ - if (!strcmp(optarg, "softfp")) { - s->float_abi = ARM_SOFTFP_FLOAT; - tcc_undefine_symbol(s, "__ARM_PCS_VFP"); - } else if (!strcmp(optarg, "hard")) - s->float_abi = ARM_HARD_FLOAT; - else - tcc_error("unsupported float abi '%s'", optarg); - break; -#endif - case TCC_OPTION_static: - s->static_link = 1; - break; - case TCC_OPTION_std: - /* silently ignore, a current purpose: - allow to use a tcc as a reference compiler for "make test" */ - break; - case TCC_OPTION_shared: - if (s->output_type) - tcc_warning("-shared: some compiler action already specified (%d)", s->output_type); - s->output_type = TCC_OUTPUT_DLL; - break; - case TCC_OPTION_soname: - s->soname = tcc_strdup(optarg); - break; - case TCC_OPTION_m: - s->option_m = tcc_strdup(optarg); - break; - case TCC_OPTION_o: - if (s->outfile) { - tcc_warning("multiple -o option"); - tcc_free(s->outfile); - } - s->outfile = tcc_strdup(optarg); - break; - case TCC_OPTION_r: - /* generate a .o merging several output files */ - if (s->output_type) - tcc_warning("-r: some compiler action already specified (%d)", s->output_type); - s->option_r = 1; - s->output_type = TCC_OUTPUT_OBJ; - break; - case TCC_OPTION_isystem: - tcc_add_sysinclude_path(s, optarg); - break; - case TCC_OPTION_iwithprefix: - if (1) { - char buf[1024]; - int buf_size = sizeof(buf)-1; - char *p = &buf[0]; - - char *sysroot = "{B}/"; - int len = strlen(sysroot); - if (len > buf_size) - len = buf_size; - strncpy(p, sysroot, len); - p += len; - buf_size -= len; - - len = strlen(optarg); - if (len > buf_size) - len = buf_size; - strncpy(p, optarg, len+1); - tcc_add_sysinclude_path(s, buf); - } - break; - case TCC_OPTION_nostdinc: - s->nostdinc = 1; - break; - case TCC_OPTION_nostdlib: - s->nostdlib = 1; - break; - case TCC_OPTION_print_search_dirs: - s->print_search_dirs = 1; - break; - case TCC_OPTION_run: - if (s->output_type) - tcc_warning("-run: some compiler action already specified (%d)", s->output_type); - s->output_type = TCC_OUTPUT_MEMORY; - tcc_set_options(s, optarg); - run = 1; - break; - case TCC_OPTION_v: - do ++s->verbose; while (*optarg++ == 'v'); - break; - case TCC_OPTION_f: - if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported) - goto unsupported_option; - break; - case TCC_OPTION_W: - if (tcc_set_warning(s, optarg, 1) < 0 && - s->warn_unsupported) - goto unsupported_option; - break; - case TCC_OPTION_w: - s->warn_none = 1; - break; - case TCC_OPTION_rdynamic: - s->rdynamic = 1; - break; - case TCC_OPTION_Wl: - if (linker_arg.size) - --linker_arg.size, cstr_ccat(&linker_arg, ','); - cstr_cat(&linker_arg, optarg); - cstr_ccat(&linker_arg, '\0'); - break; - case TCC_OPTION_E: - if (s->output_type) - tcc_warning("-E: some compiler action already specified (%d)", s->output_type); - s->output_type = TCC_OUTPUT_PREPROCESS; - break; - case TCC_OPTION_P: - s->Pflag = atoi(optarg) + 1; - break; - case TCC_OPTION_MD: - s->gen_deps = 1; - break; - case TCC_OPTION_MF: - s->deps_outfile = tcc_strdup(optarg); - break; - case TCC_OPTION_dumpversion: - printf ("%s\n", TCC_VERSION); - exit(0); - case TCC_OPTION_s: - s->do_strip = 1; - break; - case TCC_OPTION_traditional: - break; - case TCC_OPTION_x: - if (*optarg == 'c') - filetype = TCC_FILETYPE_C; - else - if (*optarg == 'a') - filetype = TCC_FILETYPE_ASM_PP; - else - if (*optarg == 'n') - filetype = 0; - else - tcc_warning("unsupported language '%s'", optarg); - break; - case TCC_OPTION_O: - if (1) { - int opt = atoi(optarg); - char *sym = "__OPTIMIZE__"; - if (opt) - tcc_define_symbol(s, sym, 0); - else - tcc_undefine_symbol(s, sym); - } - break; - case TCC_OPTION_pedantic: - case TCC_OPTION_pipe: - /* ignored */ - break; - default: - if (s->warn_unsupported) { - unsupported_option: - tcc_warning("unsupported option '%s'", r); - } - break; - } - } - - if (s->output_type == 0) - s->output_type = TCC_OUTPUT_EXE; - - if (pthread && s->output_type != TCC_OUTPUT_OBJ) - tcc_set_options(s, "-lpthread"); - - if (s->output_type == TCC_OUTPUT_EXE) - tcc_set_linker(s, (const char *)linker_arg.data); - cstr_free(&linker_arg); - - return optind; -} - -LIBTCCAPI int tcc_set_options(TCCState *s, const char *str) -{ - const char *s1; - char **argv, *arg; - int argc, len; - int ret; - - argc = 0, argv = NULL; - for(;;) { - while (is_space(*str)) - str++; - if (*str == '\0') - break; - s1 = str; - while (*str != '\0' && !is_space(*str)) - str++; - len = str - s1; - arg = tcc_malloc(len + 1); - pstrncpy(arg, s1, len); - dynarray_add((void ***)&argv, &argc, arg); - } - ret = tcc_parse_args(s, argc, argv); - dynarray_reset(&argv, &argc); - return ret; -} - -PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time) -{ - double tt; - tt = (double)total_time / 1000000.0; - if (tt < 0.001) - tt = 0.001; - if (total_bytes < 1) - total_bytes = 1; - fprintf(stderr, "%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n", - tok_ident - TOK_IDENT, total_lines, total_bytes, - tt, (int)(total_lines / tt), - total_bytes / tt / 1000000.0); -} - -PUB_FUNC void tcc_set_environment(TCCState *s) -{ - char * path; - - path = getenv("C_INCLUDE_PATH"); - if(path != NULL) { - tcc_add_include_path(s, path); - } - path = getenv("CPATH"); - if(path != NULL) { - tcc_add_include_path(s, path); - } - path = getenv("LIBRARY_PATH"); - if(path != NULL) { - tcc_add_library_path(s, path); - } -} -- cgit v1.3.1