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libtcc.c
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libtcc.c
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/*
* 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
*/
#if !defined ONE_SOURCE || ONE_SOURCE
#include "tccpp.c"
#include "tccgen.c"
#include "tccelf.c"
#include "tccrun.c"
#ifdef TCC_TARGET_I386
#include "i386-gen.c"
#include "i386-link.c"
#include "i386-asm.c"
#elif defined(TCC_TARGET_ARM)
#include "arm-gen.c"
#include "arm-link.c"
#include "arm-asm.c"
#elif defined(TCC_TARGET_ARM64)
#include "arm64-gen.c"
#include "arm64-link.c"
#elif defined(TCC_TARGET_C67)
#include "c67-gen.c"
#include "c67-link.c"
#include "tcccoff.c"
#elif defined(TCC_TARGET_X86_64)
#include "x86_64-gen.c"
#include "x86_64-link.c"
#include "i386-asm.c"
#elif defined(TCC_TARGET_RISCV64)
#include "riscv64-gen.c"
#include "riscv64-link.c"
#else
#error unknown target
#endif
#ifdef CONFIG_TCC_ASM
#include "tccasm.c"
#endif
#ifdef TCC_TARGET_PE
#include "tccpe.c"
#endif
#endif /* ONE_SOURCE */
#include "tcc.h"
/********************************************************/
/* global variables */
/* XXX: get rid of this ASAP (or maybe not) */
ST_DATA struct TCCState *tcc_state;
#ifdef MEM_DEBUG
static int nb_states;
#endif
/********************************************************/
#ifdef _WIN32
ST_FUNC 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 > 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
#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
/********************************************************/
#ifndef CONFIG_TCC_SEMLOCK
#define WAIT_SEM()
#define POST_SEM()
#elif defined _WIN32
static int tcc_sem_init;
static CRITICAL_SECTION tcc_cr;
static void wait_sem(void)
{
if (!tcc_sem_init)
InitializeCriticalSection(&tcc_cr), tcc_sem_init = 1;
EnterCriticalSection(&tcc_cr);
}
#define WAIT_SEM() wait_sem()
#define POST_SEM() LeaveCriticalSection(&tcc_cr);
#else
#include <semaphore.h>
static int tcc_sem_init;
static sem_t tcc_sem;
static void wait_sem(void)
{
if (!tcc_sem_init)
sem_init(&tcc_sem, 0, 1), tcc_sem_init = 1;
while (sem_wait (&tcc_sem) < 0 && errno == EINTR);
}
#define WAIT_SEM() wait_sem()
#define POST_SEM() sem_post(&tcc_sem)
#endif
/********************************************************/
/* copy a string and truncate it. */
ST_FUNC char *pstrcpy(char *buf, size_t 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. */
ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s)
{
size_t len;
len = strlen(buf);
if (len < buf_size)
pstrcpy(buf + len, buf_size - len, s);
return buf;
}
ST_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;
}
#else
#define MEM_DEBUG_MAGIC1 0xFEEDDEB1
#define MEM_DEBUG_MAGIC2 0xFEEDDEB2
#define MEM_DEBUG_MAGIC3 0xFEEDDEB3
#define MEM_DEBUG_FILE_LEN 40
#define MEM_DEBUG_CHECK3(header) \
((mem_debug_header_t*)((char*)header + header->size))->magic3
#define MEM_USER_PTR(header) \
((char *)header + offsetof(mem_debug_header_t, magic3))
#define MEM_HEADER_PTR(ptr) \
(mem_debug_header_t *)((char*)ptr - offsetof(mem_debug_header_t, magic3))
struct mem_debug_header {
unsigned magic1;
unsigned size;
struct mem_debug_header *prev;
struct mem_debug_header *next;
int line_num;
char file_name[MEM_DEBUG_FILE_LEN + 1];
unsigned magic2;
ALIGNED(16) unsigned magic3;
};
typedef struct mem_debug_header mem_debug_header_t;
static mem_debug_header_t *mem_debug_chain;
static unsigned mem_cur_size;
static unsigned mem_max_size;
static mem_debug_header_t *malloc_check(void *ptr, const char *msg)
{
mem_debug_header_t * header = MEM_HEADER_PTR(ptr);
if (header->magic1 != MEM_DEBUG_MAGIC1 ||
header->magic2 != MEM_DEBUG_MAGIC2 ||
MEM_DEBUG_CHECK3(header) != MEM_DEBUG_MAGIC3 ||
header->size == (unsigned)-1) {
fprintf(stderr, "%s check failed\n", msg);
if (header->magic1 == MEM_DEBUG_MAGIC1)
fprintf(stderr, "%s:%u: block allocated here.\n",
header->file_name, header->line_num);
exit(1);
}
return header;
}
PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line)
{
int ofs;
mem_debug_header_t *header;
header = malloc(sizeof(mem_debug_header_t) + size);
if (!header)
_tcc_error("memory full (malloc)");
header->magic1 = MEM_DEBUG_MAGIC1;
header->magic2 = MEM_DEBUG_MAGIC2;
header->size = size;
MEM_DEBUG_CHECK3(header) = MEM_DEBUG_MAGIC3;
header->line_num = line;
ofs = strlen(file) - MEM_DEBUG_FILE_LEN;
strncpy(header->file_name, file + (ofs > 0 ? ofs : 0), 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;
mem_cur_size += size;
if (mem_cur_size > mem_max_size)
mem_max_size = mem_cur_size;
return MEM_USER_PTR(header);
}
PUB_FUNC void tcc_free_debug(void *ptr)
{
mem_debug_header_t *header;
if (!ptr)
return;
header = malloc_check(ptr, "tcc_free");
mem_cur_size -= header->size;
header->size = (unsigned)-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(header);
}
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)
return tcc_malloc_debug(size, file, line);
header = malloc_check(ptr, "tcc_realloc");
mem_cur_size -= header->size;
mem_debug_chain_update = (header == mem_debug_chain);
header = realloc(header, sizeof(mem_debug_header_t) + size);
if (!header)
_tcc_error("memory full (realloc)");
header->size = size;
MEM_DEBUG_CHECK3(header) = MEM_DEBUG_MAGIC3;
if (header->next)
header->next->prev = header;
if (header->prev)
header->prev->next = header;
if (mem_debug_chain_update)
mem_debug_chain = header;
mem_cur_size += size;
if (mem_cur_size > mem_max_size)
mem_max_size = mem_cur_size;
return MEM_USER_PTR(header);
}
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_memcheck(void)
{
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, "%s:%u: error: %u bytes leaked\n",
header->file_name, header->line_num, header->size);
header = header->next;
}
#if MEM_DEBUG-0 == 2
exit(2);
#endif
}
}
#endif /* MEM_DEBUG */
#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 = *(void ***)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 *));
*(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[0]; ++p) {
if (c == '{' && p[1] && p[2] == '}') {
c = p[1], p += 2;
if (c == 'B')
cstr_cat(&str, s->tcc_lib_path, -1);
if (c == 'f' && file) {
/* substitute current file's dir */
const char *f = file->true_filename;
const char *b = tcc_basename(f);
if (b > f)
cstr_cat(&str, f, b - f - 1);
else
cstr_cat(&str, ".", 1);
}
} else {
cstr_ccat(&str, c);
}
}
if (str.size) {
cstr_ccat(&str, '\0');
dynarray_add(p_ary, p_nb_ary, tcc_strdup(str.data));
}
cstr_free(&str);
in = p+1;
} while (*p);
}
/********************************************************/
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);
}
#define ERROR_WARN 0
#define ERROR_NOABORT 1
#define ERROR_ERROR 2
PUB_FUNC void tcc_enter_state(TCCState *s1)
{
WAIT_SEM();
tcc_state = s1;
}
static void error1(int mode, const char *fmt, va_list ap)
{
char buf[2048];
BufferedFile **pf, *f;
TCCState *s1 = tcc_state;
/* 's1->error_set_jmp_enabled' means that we're called from
within the parser/generator and 'tcc_state' was already
set (i.e. not by the function above).
Otherwise, 's1 = NULL' means we're called because of severe
problems from tcc_malloc() which under normal conditions
should never happen. */
if (s1 && !s1->error_set_jmp_enabled) {
tcc_state = NULL;
POST_SEM();
}
if (mode == ERROR_WARN) {
if (s1->warn_none)
return;
if (s1->warn_error)
mode = ERROR_ERROR;
}
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 (s1->error_set_jmp_enabled) {
strcat_printf(buf, sizeof(buf), "%s:%d: ",
f->filename, f->line_num - !!(tok_flags & TOK_FLAG_BOL));
} else {
strcat_printf(buf, sizeof(buf), "%s: ",
f->filename);
}
} else {
strcat_printf(buf, sizeof(buf), "tcc: ");
}
if (mode == ERROR_WARN)
strcat_printf(buf, sizeof(buf), "warning: ");
else
strcat_printf(buf, sizeof(buf), "error: ");
strcat_vprintf(buf, sizeof(buf), fmt, ap);
if (!s1 || !s1->error_func) {
/* default case: stderr */
if (s1 && s1->output_type == TCC_OUTPUT_PREPROCESS && s1->ppfp == stdout)
/* print a newline during tcc -E */
printf("\n"), fflush(stdout);
fflush(stdout); /* flush -v output */
fprintf(stderr, "%s\n", buf);
fflush(stderr); /* print error/warning now (win32) */
} else {
s1->error_func(s1->error_opaque, buf);
}
if (s1) {
if (mode != ERROR_WARN)
s1->nb_errors++;
if (mode != ERROR_ERROR)
return;
if (s1->error_set_jmp_enabled)
longjmp(s1->error_jmp_buf, 1);
}
exit(1);
}
LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque, TCCErrorFunc error_func)
{
s->error_opaque = error_opaque;
s->error_func = error_func;
}
LIBTCCAPI TCCErrorFunc tcc_get_error_func(TCCState *s)
{
return s->error_func;
}
LIBTCCAPI void *tcc_get_error_opaque(TCCState *s)
{
return s->error_opaque;
}
/* error without aborting current compilation */
PUB_FUNC void _tcc_error_noabort(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
error1(ERROR_NOABORT, fmt, ap);
va_end(ap);
}
PUB_FUNC void _tcc_error(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
for (;;) error1(ERROR_ERROR, fmt, ap);
}
PUB_FUNC void _tcc_warning(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
error1(ERROR_WARN, 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->true_filename = bf->filename;
bf->line_num = 1;
bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
bf->fd = -1;
bf->prev = file;
file = bf;
tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
}
ST_FUNC void tcc_close(void)
{
TCCState *s1 = tcc_state;
BufferedFile *bf = file;
if (bf->fd > 0) {
close(bf->fd);
total_lines += bf->line_num;
}
if (bf->true_filename != bf->filename)
tcc_free(bf->true_filename);
file = bf->prev;
tcc_free(bf);
}
static int _tcc_open(TCCState *s1, const char *filename)
{
int fd;
if (strcmp(filename, "-") == 0)
fd = 0, filename = "<stdin>";
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);
return fd;
}
ST_FUNC int tcc_open(TCCState *s1, const char *filename)
{
int fd = _tcc_open(s1, filename);
if (fd < 0)
return -1;
tcc_open_bf(s1, filename, 0);
file->fd = fd;
return 0;
}
/* compile the file opened in 'file'. Return non zero if errors. */
static int tcc_compile(TCCState *s1, int filetype, const char *str, int fd)
{
/* Here we enter the code section where we use the global variables for
parsing and code generation (tccpp.c, tccgen.c, <target>-gen.c).
Other threads need to wait until we're done.
Alternatively we could use thread local storage for those global
variables, which may or may not have advantages */
WAIT_SEM();
tcc_state = s1;
if (setjmp(s1->error_jmp_buf) == 0) {
int is_asm;
s1->error_set_jmp_enabled = 1;
s1->nb_errors = 0;
if (fd == -1) {
int len = strlen(str);
tcc_open_bf(s1, "<string>", len);
memcpy(file->buffer, str, len);
} else {
tcc_open_bf(s1, str, 0);
file->fd = fd;
}
is_asm = !!(filetype & (AFF_TYPE_ASM|AFF_TYPE_ASMPP));
tccelf_begin_file(s1);
preprocess_start(s1, is_asm);
tccgen_init(s1);
if (s1->output_type == TCC_OUTPUT_PREPROCESS) {
tcc_preprocess(s1);
} else if (is_asm) {
#ifdef CONFIG_TCC_ASM
tcc_assemble(s1, !!(filetype & AFF_TYPE_ASMPP));
#else
tcc_error_noabort("asm not supported");
#endif
} else {
tccgen_compile(s1);
}
}
s1->error_set_jmp_enabled = 0;
tccgen_finish(s1);
preprocess_end(s1);
tccelf_end_file(s1);
tcc_state = NULL;
POST_SEM();
return s1->nb_errors != 0 ? -1 : 0;
}
LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str)
{
return tcc_compile(s, s->filetype, str, -1);
}
/* 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)
{
if (!value)
value = "1";
cstr_printf(&s1->cmdline_defs, "#define %s %s\n", sym, value);
}
/* undefine a preprocessor symbol */
LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym)
{
cstr_printf(&s1->cmdline_defs, "#undef %s\n", sym);
}
LIBTCCAPI TCCState *tcc_new(void)
{
TCCState *s;
s = tcc_mallocz(sizeof(TCCState));
if (!s)
return NULL;
#ifdef MEM_DEBUG
++nb_states;
#endif
#undef gnu_ext
s->gnu_ext = 1;
s->tcc_ext = 1;
s->nocommon = 1;
s->dollars_in_identifiers = 1; /*on by default like in gcc/clang*/
s->cversion = 199901; /* default unless -std=c11 is supplied */
s->warn_implicit_function_declaration = 1;
s->ms_extensions = 1;
#ifdef CHAR_IS_UNSIGNED
s->char_is_unsigned = 1;
#endif
#ifdef TCC_TARGET_I386
s->seg_size = 32;
#endif
/* enable this if you want symbols with leading underscore on windows: */
#if 0 /* def TCC_TARGET_PE */
s->leading_underscore = 1;
#endif
s->ppfp = stdout;
/* might be used in error() before preprocess_start() */
s->include_stack_ptr = s->include_stack;
tccelf_new(s);
#ifdef _WIN32
tcc_set_lib_path_w32(s);
#else
tcc_set_lib_path(s, CONFIG_TCCDIR);
#endif
{
/* define __TINYC__ 92X */
char buffer[32]; int a,b,c;
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);
#elif defined TCC_TARGET_C67
tcc_define_symbol(s, "__C67__", NULL);
#elif defined TCC_TARGET_RISCV64
tcc_define_symbol(s, "__riscv", NULL);
tcc_define_symbol(s, "__riscv_xlen", "64");
tcc_define_symbol(s, "__riscv_flen", "64");
tcc_define_symbol(s, "__riscv_div", NULL);
tcc_define_symbol(s, "__riscv_mul", NULL);
tcc_define_symbol(s, "__riscv_fdiv", NULL);
tcc_define_symbol(s, "__riscv_fsqrt", NULL);
tcc_define_symbol(s, "__riscv_float_abi_double", NULL);
#endif
#ifdef TCC_TARGET_PE
tcc_define_symbol(s, "_WIN32", NULL);
tcc_define_symbol(s, "__declspec(x)", "__attribute__((x))");
tcc_define_symbol(s, "__cdecl", "");
# 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__)
tcc_define_symbol(s, "__FreeBSD__", "__FreeBSD__");
/* No 'Thread Storage Local' on FreeBSD with tcc */
tcc_define_symbol(s, "__NO_TLS", NULL);
# endif
# if defined(__FreeBSD_kernel__)
tcc_define_symbol(s, "__FreeBSD_kernel__", NULL);
# endif
# if defined(__NetBSD__)
tcc_define_symbol(s, "__NetBSD__", "__NetBSD__");
# endif
# if defined(__OpenBSD__)
tcc_define_symbol(s, "__OpenBSD__", "__OpenBSD__");
# endif
#endif
/* TinyCC & gcc defines */
#if PTR_SIZE == 4
/* 32bit systems. */
tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned int");
tcc_define_symbol(s, "__PTRDIFF_TYPE__", "int");
tcc_define_symbol(s, "__ILP32__", NULL);
#elif LONG_SIZE == 4
/* 64bit Windows. */
tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long");
tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long");
tcc_define_symbol(s, "__LLP64__", NULL);
#else
/* Other 64bit systems. */
tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long");
tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long");
tcc_define_symbol(s, "__LP64__", NULL);
#endif
tcc_define_symbol(s, "__SIZEOF_POINTER__", PTR_SIZE == 4 ? "4" : "8");
#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__) \
|| defined(__NetBSD__) || defined(__OpenBSD__)
tcc_define_symbol(s, "__WINT_TYPE__", "int");
# ifdef __FreeBSD__
/* define __GNUC__ to have some useful stuff from sys/cdefs.h
that are unconditionally used in FreeBSDs other system headers :/ */
tcc_define_symbol(s, "__GNUC__", "2");
tcc_define_symbol(s, "__GNUC_MINOR__", "7");
tcc_define_symbol(s, "__builtin_alloca", "alloca");
# endif
# else
tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int");
/* 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");
# endif
# if defined(TCC_MUSL)
tcc_define_symbol(s, "__DEFINED_va_list", "");
tcc_define_symbol(s, "__DEFINED___isoc_va_list", "");
tcc_define_symbol(s, "__isoc_va_list", "void *");
# endif /* TCC_MUSL */
/* Some GCC builtins that are simple to express as macros. */
tcc_define_symbol(s, "__builtin_extract_return_addr(x)", "x");
#endif /* ndef TCC_TARGET_PE */
return s;
}
LIBTCCAPI void tcc_delete(TCCState *s1)
{
/* free sections */
tccelf_delete(s1);
/* 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->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);
dynarray_reset(&s1->argv, &s1->argc);
cstr_free(&s1->cmdline_defs);
cstr_free(&s1->cmdline_incl);
#ifdef TCC_IS_NATIVE
/* free runtime memory */
tcc_run_free(s1);
#endif
tcc_free(s1);
#ifdef MEM_DEBUG
if (0 == --nb_states)
tcc_memcheck();
#endif
}
LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
{
s->output_type = output_type;
/* always elf for objects */
if (output_type == TCC_OUTPUT_OBJ)
s->output_format = TCC_OUTPUT_FORMAT_ELF;
if (s->char_is_unsigned)
tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL);
if (!s->nostdinc) {
/* default include paths */
/* -isystem paths have already been handled */
tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
}
#ifdef CONFIG_TCC_BCHECK
if (s->do_bounds_check) {
/* if bound checking, then add corresponding sections */
tccelf_bounds_new(s);
/* define symbol */
tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL);
}
#endif
if (s->do_debug) {
/* add debug sections */
tccelf_stab_new(s);
}