From 89ad24e7d63f7488c2796b30d41303f52663a8c4 Mon Sep 17 00:00:00 2001 From: gus knight Date: Wed, 29 Jul 2015 16:53:57 -0400 Subject: Revert all of my changes to directories & codingstyle. --- libtcc.c | 2322 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2322 insertions(+) create mode 100644 libtcc.c (limited to 'libtcc.c') diff --git a/libtcc.c b/libtcc.c new file mode 100644 index 0000000..df98bb0 --- /dev/null +++ b/libtcc.c @@ -0,0 +1,2322 @@ +/* + * 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