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https://github.com/mirror/tinycc.git
synced 2024-12-28 04:00:06 +08:00
win32 defines + new internal file layer
This commit is contained in:
bellard
parent
bbd541d760
commit
9c06595a1e
19
bcheck.c
19
bcheck.c
@ -80,10 +80,12 @@ static void libc_free(void *ptr);
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static void install_malloc_hooks(void);
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static void restore_malloc_hooks(void);
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#ifndef WIN32
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static void *saved_malloc_hook;
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static void *saved_free_hook;
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static void *saved_realloc_hook;
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static void *saved_memalign_hook;
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#endif
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extern char _end;
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@ -123,8 +125,7 @@ static BoundEntry *__bound_find_region(BoundEntry *e1, void *p)
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return __bound_empty_t2;
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}
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/* print a bound error and recurse thru 'nb_callers' to get the error
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position */
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/* print a bound error message */
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static void bound_error(const void *caller, const char *fmt, ...)
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{
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rt_error((unsigned long)caller, "%s", fmt);
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@ -132,7 +133,7 @@ static void bound_error(const void *caller, const char *fmt, ...)
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static void bound_alloc_error(void)
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{
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bound_error(NULL, "not enough memory for bound checking code\n");
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bound_error(NULL, "not enough memory for bound checking code");
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}
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/* currently, tcc cannot compile that because we use GNUC extensions */
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@ -406,7 +407,7 @@ void __bound_init(void)
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size = BOUND_T23_SIZE;
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mark_invalid(start, size);
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#if !defined(__TINYC__)
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#if !defined(__TINYC__) && !defined(WIN32)
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/* malloc zone is also marked invalid */
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start = (unsigned long)&_end;
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size = 128 * 0x100000;
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@ -641,6 +642,7 @@ static unsigned long get_region_size(void *p)
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static void install_malloc_hooks(void)
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{
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#ifndef WIN32
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saved_malloc_hook = __malloc_hook;
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saved_free_hook = __free_hook;
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saved_realloc_hook = __realloc_hook;
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@ -649,14 +651,17 @@ static void install_malloc_hooks(void)
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__free_hook = __bound_free;
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__realloc_hook = __bound_realloc;
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__memalign_hook = __bound_memalign;
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#endif
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}
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static void restore_malloc_hooks(void)
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{
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#ifndef WIN32
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__malloc_hook = saved_malloc_hook;
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__free_hook = saved_free_hook;
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__realloc_hook = saved_realloc_hook;
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__memalign_hook = saved_memalign_hook;
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#endif
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}
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static void *libc_malloc(size_t size)
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@ -693,6 +698,7 @@ void *__bound_malloc(size_t size, const void *caller)
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return ptr;
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}
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#ifndef WIN32
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void *__bound_memalign(size_t size, size_t align, const void *caller)
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{
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void *ptr;
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@ -711,6 +717,7 @@ void *__bound_memalign(size_t size, size_t align, const void *caller)
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__bound_new_region(ptr, size);
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return ptr;
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}
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#endif
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void __bound_free(void *ptr, const void *caller)
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{
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@ -773,7 +780,7 @@ static void bound_dump(void)
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/* some useful checked functions */
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/* check that (p ... p + size - 1) lies inside 'p' region, if any */
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static void __bound_check(const void *p, ssize_t size)
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static void __bound_check(const void *p, size_t size)
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{
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if (size == 0)
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return;
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@ -805,7 +812,7 @@ void *__bound_memset(void *dst, int c, size_t size)
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return memset(dst, c, size);
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}
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/* resolve check check syms */
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/* resolve bound check syms */
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typedef struct BCSyms {
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char *str;
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void *ptr;
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234
tcc.c
234
tcc.c
@ -25,11 +25,15 @@
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#include <math.h>
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#include <unistd.h>
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#include <signal.h>
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#include <malloc.h>
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#include <unistd.h>
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#include <fcntl.h>
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#ifndef WIN32
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#include <sys/ucontext.h>
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#include <sys/mman.h>
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#include <elf.h>
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#include <stab.h>
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#include <malloc.h>
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#endif
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#include "elf.h"
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#include "stab.h"
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#ifndef CONFIG_TCC_STATIC
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#include <dlfcn.h>
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#endif
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@ -145,15 +149,22 @@ typedef struct AttributeDef {
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#define TYPE_ABSTRACT 1 /* type without variable */
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#define TYPE_DIRECT 2 /* type with variable */
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typedef struct {
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FILE *file;
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char *filename;
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int line_num;
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} IncludeFile;
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#define IO_BUF_SIZE 8192
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typedef struct BufferedFile {
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unsigned char *buf_ptr;
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unsigned char *buf_end;
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int fd;
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int line_num; /* current line number - here to simply code */
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char filename[1024]; /* current filename - here to simply code */
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unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
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} BufferedFile;
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#define CH_EOB 0 /* end of buffer or '\0' char in file */
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#define CH_EOF (-1) /* end of file */
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/* parser */
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FILE *file;
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int line_num;
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struct BufferedFile *file;
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int ch, ch1, tok, tok1;
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CValue tokc, tok1c;
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@ -185,14 +196,14 @@ int tok_ident;
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TokenSym **table_ident;
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TokenSym *hash_ident[TOK_HASH_SIZE];
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char token_buf[STRING_MAX_SIZE + 1];
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char *filename, *funcname;
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char *funcname;
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/* contains global symbols which remain between each translation unit */
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SymStack extern_stack;
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SymStack define_stack, global_stack, local_stack, label_stack;
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SValue vstack[VSTACK_SIZE], *vtop;
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int *macro_ptr, *macro_ptr_allocated;
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IncludeFile include_stack[INCLUDE_STACK_SIZE], *include_stack_ptr;
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BufferedFile *include_stack[INCLUDE_STACK_SIZE], **include_stack_ptr;
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int ifdef_stack[IFDEF_STACK_SIZE], *ifdef_stack_ptr;
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char *include_paths[INCLUDE_PATHS_MAX];
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int nb_include_paths;
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@ -316,6 +327,8 @@ int tcc_ext = 1;
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#define TOK_A_SHL 0x81
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#define TOK_A_SAR 0x82
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#define TOK_EOF (-1) /* end of file */
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/* all identificators and strings have token above that */
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#define TOK_IDENT 256
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@ -344,8 +357,10 @@ enum {
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TOK_LONG,
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TOK_REGISTER,
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TOK_SIGNED,
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TOK___SIGNED__, /* gcc keyword */
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TOK_AUTO,
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TOK_INLINE,
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TOK___INLINE__, /* gcc keyword */
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TOK_RESTRICT,
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/* unsupported type */
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@ -392,9 +407,22 @@ enum {
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TOK___UNUSED__,
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};
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#ifdef WIN32
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#define snprintf _snprintf
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/* currently incorrect */
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long double strtold(const char *nptr, char **endptr)
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{
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return (long double)strtod(nptr, endptr);
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}
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float strtof(const char *nptr, char **endptr)
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{
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return (float)strtod(nptr, endptr);
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}
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#else
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/* XXX: need to define this to use them in non ISOC99 context */
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extern float strtof (const char *__nptr, char **__endptr);
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extern long double strtold (const char *__nptr, char **__endptr);
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#endif
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void sum(int l);
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void next(void);
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@ -495,7 +523,7 @@ static TCCSyms tcc_syms[] = {
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{ NULL, NULL },
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};
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void *dlsym(void *handle, char *symbol)
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void *dlsym(void *handle, const char *symbol)
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{
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TCCSyms *p;
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p = tcc_syms;
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@ -582,12 +610,13 @@ unsigned long long __ldtoull(long double a)
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/********************************************************/
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/* copy a string and truncate it */
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/* copy a string and truncate it. */
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char *pstrcpy(char *buf, int buf_size, const char *s)
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{
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char *q, *q_end;
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int c;
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if (buf_size > 0) {
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q = buf;
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q_end = buf + buf_size - 1;
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while (q < q_end) {
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@ -597,10 +626,11 @@ char *pstrcpy(char *buf, int buf_size, const char *s)
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*q++ = c;
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}
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*q = '\0';
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}
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return buf;
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}
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/* strcat and truncate */
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/* strcat and truncate. */
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char *pstrcat(char *buf, int buf_size, const char *s)
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{
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int len;
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@ -624,12 +654,19 @@ Section *new_section(const char *name, int sh_type, int sh_flags)
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sec->sh_num = ++section_num;
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sec->sh_type = sh_type;
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sec->sh_flags = sh_flags;
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#ifdef WIN32
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/* XXX: currently, a single malloc */
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data = malloc(SECTION_VSIZE);
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if (data == NULL)
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error("could not alloc section '%s'", name);
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#else
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data = mmap(NULL, SECTION_VSIZE,
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PROT_EXEC | PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANONYMOUS,
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-1, 0);
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if (data == (void *)(-1))
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error("could not mmap section '%s'", name);
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#endif
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sec->data = data;
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sec->data_ptr = data;
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psec = &first_section;
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@ -706,11 +743,11 @@ static inline int toup(int c)
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void printline(void)
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{
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IncludeFile *f;
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BufferedFile **f;
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for(f = include_stack; f < include_stack_ptr; f++)
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fprintf(stderr, "In file included from %s:%d:\n",
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f->filename, f->line_num);
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fprintf(stderr, "%s:%d: ", filename, line_num);
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(*f)->filename, (*f)->line_num);
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fprintf(stderr, "%s:%d: ", file->filename, file->line_num);
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}
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void error(const char *fmt, ...)
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@ -976,39 +1013,94 @@ void sym_undef(SymStack *st, Sym *s)
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s->v = 0;
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}
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/* no need to put that inline */
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int handle_eof(void)
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/* I/O layer */
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BufferedFile *tcc_open(const char *filename)
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{
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int fd;
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BufferedFile *bf;
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fd = open(filename, O_RDONLY);
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if (fd < 0)
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return NULL;
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bf = malloc(sizeof(BufferedFile));
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if (!bf) {
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close(fd);
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return NULL;
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}
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bf->fd = fd;
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bf->buf_ptr = bf->buffer;
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bf->buf_end = bf->buffer;
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bf->buffer[0] = CH_EOB; /* put eob symbol */
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pstrcpy(bf->filename, sizeof(bf->filename), filename);
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bf->line_num = 1;
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return bf;
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}
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void tcc_close(BufferedFile *bf)
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{
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close(bf->fd);
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free(bf);
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}
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/* read one char. MUST call tcc_fillbuf if CH_EOB is read */
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#define TCC_GETC(bf) (*(bf)->buf_ptr++)
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/* fill input buffer and return next char */
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int tcc_getc_slow(BufferedFile *bf)
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{
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int len;
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/* only tries to read if really end of buffer */
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if (bf->buf_ptr >= bf->buf_end) {
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if (bf->fd != -1) {
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len = read(bf->fd, bf->buffer, IO_BUF_SIZE);
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if (len < 0)
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len = 0;
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} else {
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len = 0;
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}
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bf->buf_ptr = bf->buffer;
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bf->buf_end = bf->buffer + len;
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*bf->buf_end = CH_EOB;
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}
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if (bf->buf_ptr < bf->buf_end) {
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return *bf->buf_ptr++;
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} else {
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bf->buf_ptr = bf->buf_end;
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return CH_EOF;
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}
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}
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/* no need to put that inline */
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void handle_eob(void)
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{
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for(;;) {
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ch1 = tcc_getc_slow(file);
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if (ch1 != CH_EOF)
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return;
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if (include_stack_ptr == include_stack)
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return -1;
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return;
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/* add end of include file debug info */
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if (do_debug) {
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put_stabd(N_EINCL, 0, 0);
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}
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/* pop include stack */
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fclose(file);
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free(filename);
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tcc_close(file);
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include_stack_ptr--;
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file = include_stack_ptr->file;
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filename = include_stack_ptr->filename;
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line_num = include_stack_ptr->line_num;
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return 0;
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file = *include_stack_ptr;
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}
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}
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/* read next char from current input file */
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static inline void inp(void)
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{
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redo:
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/* faster than fgetc */
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ch1 = getc_unlocked(file);
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if (ch1 == -1) {
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if (handle_eof() < 0)
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return;
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else
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goto redo;
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}
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ch1 = TCC_GETC(file);
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/* end of buffer/file handling */
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if (ch1 == CH_EOB)
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handle_eob();
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if (ch1 == '\n')
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line_num++;
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file->line_num++;
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// printf("ch1=%c 0x%x\n", ch1, ch1);
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}
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@ -1219,7 +1311,7 @@ void preprocess(void)
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int size, i, c, v, t, *str, len;
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char buf[1024], *q, *p;
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char buf1[1024];
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FILE *f;
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BufferedFile *f;
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Sym **ps, *first, *s;
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cinp();
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@ -1304,15 +1396,15 @@ void preprocess(void)
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if (c == '\"') {
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/* first search in current dir if "header.h" */
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size = 0;
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p = strrchr(filename, '/');
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p = strrchr(file->filename, '/');
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if (p)
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size = p + 1 - filename;
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size = p + 1 - file->filename;
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if (size > sizeof(buf1) - 1)
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size = sizeof(buf1) - 1;
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memcpy(buf1, filename, size);
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memcpy(buf1, file->filename, size);
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buf1[size] = '\0';
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pstrcat(buf1, sizeof(buf1), buf);
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f = fopen(buf1, "r");
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f = tcc_open(buf1);
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if (f)
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goto found;
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}
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@ -1321,7 +1413,7 @@ void preprocess(void)
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strcpy(buf1, include_paths[i]);
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strcat(buf1, "/");
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strcat(buf1, buf);
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f = fopen(buf1, "r");
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f = tcc_open(buf1);
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if (f)
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goto found;
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}
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@ -1330,16 +1422,11 @@ void preprocess(void)
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found:
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/* push current file in stack */
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/* XXX: fix current line init */
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include_stack_ptr->file = file;
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include_stack_ptr->filename = filename;
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include_stack_ptr->line_num = line_num;
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include_stack_ptr++;
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*include_stack_ptr++ = file;
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file = f;
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filename = strdup(buf1);
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line_num = 1;
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/* add include file debug info */
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if (do_debug) {
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put_stabs(filename, N_BINCL, 0, 0, 0);
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put_stabs(file->filename, N_BINCL, 0, 0, 0);
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}
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} else if (tok == TOK_IFNDEF) {
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c = 1;
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@ -1382,14 +1469,14 @@ void preprocess(void)
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next();
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if (tok != TOK_CINT)
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error("#line");
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line_num = tokc.i;
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file->line_num = tokc.i;
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skip_spaces();
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if (ch != '\n') {
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next();
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if (tok != TOK_STR)
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error("#line");
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/* XXX: potential memory leak */
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filename = strdup(get_tok_str(tok, &tokc));
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pstrcpy(file->filename, sizeof(file->filename),
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get_tok_str(tok, &tokc));
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}
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} else if (tok == TOK_ERROR) {
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error("#error");
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@ -2025,10 +2112,10 @@ void macro_subst(int **tok_str, int *tok_len,
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break;
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/* special macros */
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if (tok == TOK___LINE__) {
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cval.i = line_num;
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cval.i = file->line_num;
|
||||
tok_add2(tok_str, tok_len, TOK_CINT, &cval);
|
||||
} else if (tok == TOK___FILE__) {
|
||||
cval.ts = tok_alloc(filename, 0);
|
||||
cval.ts = tok_alloc(file->filename, 0);
|
||||
tok_add2(tok_str, tok_len, TOK_STR, &cval);
|
||||
} else if (tok == TOK___DATE__) {
|
||||
cval.ts = tok_alloc("Jan 1 1970", 0);
|
||||
@ -3912,8 +3999,10 @@ int parse_btype(int *type_ptr, AttributeDef *ad)
|
||||
case TOK_VOLATILE:
|
||||
case TOK_REGISTER:
|
||||
case TOK_SIGNED:
|
||||
case TOK___SIGNED__:
|
||||
case TOK_AUTO:
|
||||
case TOK_INLINE:
|
||||
case TOK___INLINE__:
|
||||
case TOK_RESTRICT:
|
||||
next();
|
||||
break;
|
||||
@ -4665,10 +4754,10 @@ void block(int *bsym, int *csym, int *case_sym, int *def_sym, int case_reg)
|
||||
|
||||
/* generate line number info */
|
||||
if (do_debug &&
|
||||
(last_line_num != line_num || last_ind != ind)) {
|
||||
put_stabn(N_SLINE, 0, line_num, ind - func_ind);
|
||||
(last_line_num != file->line_num || last_ind != ind)) {
|
||||
put_stabn(N_SLINE, 0, file->line_num, ind - func_ind);
|
||||
last_ind = ind;
|
||||
last_line_num = line_num;
|
||||
last_line_num = file->line_num;
|
||||
}
|
||||
|
||||
if (tok == TOK_IF) {
|
||||
@ -5339,7 +5428,7 @@ void put_func_debug(int t)
|
||||
/* XXX: we put here a dummy type */
|
||||
snprintf(buf, sizeof(buf), "%s:%c1",
|
||||
funcname, t & VT_STATIC ? 'f' : 'F');
|
||||
put_stabs(buf, N_FUN, 0, line_num, ind);
|
||||
put_stabs(buf, N_FUN, 0, file->line_num, ind);
|
||||
func_ind = ind;
|
||||
last_ind = 0;
|
||||
last_line_num = 0;
|
||||
@ -5533,13 +5622,11 @@ int tcc_compile_file(const char *filename1)
|
||||
Sym *define_start;
|
||||
char buf[512];
|
||||
|
||||
line_num = 1;
|
||||
funcname = "";
|
||||
filename = (char *)filename1;
|
||||
|
||||
file = fopen(filename, "r");
|
||||
file = tcc_open(filename1);
|
||||
if (!file)
|
||||
error("file '%s' not found", filename);
|
||||
error("file '%s' not found", filename1);
|
||||
include_stack_ptr = include_stack;
|
||||
ifdef_stack_ptr = ifdef_stack;
|
||||
|
||||
@ -5551,7 +5638,8 @@ int tcc_compile_file(const char *filename1)
|
||||
getcwd(buf, sizeof(buf));
|
||||
pstrcat(buf, sizeof(buf), "/");
|
||||
put_stabs(buf, N_SO, 0, 0, (unsigned long)text_section->data_ptr);
|
||||
put_stabs(filename, N_SO, 0, 0, (unsigned long)text_section->data_ptr);
|
||||
put_stabs(file->filename, N_SO, 0, 0,
|
||||
(unsigned long)text_section->data_ptr);
|
||||
}
|
||||
/* define common 'char *' type because it is often used internally
|
||||
for arrays and struct dereference */
|
||||
@ -5564,7 +5652,7 @@ int tcc_compile_file(const char *filename1)
|
||||
decl(VT_CONST);
|
||||
if (tok != -1)
|
||||
expect("declaration");
|
||||
fclose(file);
|
||||
tcc_close(file);
|
||||
|
||||
/* end of translation unit info */
|
||||
if (do_debug) {
|
||||
@ -5993,6 +6081,7 @@ void rt_error(unsigned long pc, const char *fmt, ...)
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
#ifndef WIN32
|
||||
/* signal handler for fatal errors */
|
||||
static void sig_error(int signum, siginfo_t *siginf, void *puc)
|
||||
{
|
||||
@ -6033,19 +6122,23 @@ static void sig_error(int signum, siginfo_t *siginf, void *puc)
|
||||
}
|
||||
exit(255);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* launch the compiled program with the given arguments */
|
||||
int launch_exe(int argc, char **argv)
|
||||
{
|
||||
Sym *s;
|
||||
int (*t)();
|
||||
struct sigaction sigact;
|
||||
|
||||
s = sym_find1(&extern_stack, TOK_MAIN);
|
||||
if (!s || (s->r & VT_FORWARD))
|
||||
error("main() not defined");
|
||||
|
||||
if (do_debug) {
|
||||
#ifdef WIN32
|
||||
error("debug mode currently not available for Windows");
|
||||
#else
|
||||
struct sigaction sigact;
|
||||
/* install TCC signal handlers to print debug info on fatal
|
||||
runtime errors */
|
||||
sigact.sa_flags = SA_SIGINFO | SA_ONESHOT;
|
||||
@ -6056,9 +6149,13 @@ int launch_exe(int argc, char **argv)
|
||||
sigaction(SIGSEGV, &sigact, NULL);
|
||||
sigaction(SIGBUS, &sigact, NULL);
|
||||
sigaction(SIGABRT, &sigact, NULL);
|
||||
#endif
|
||||
}
|
||||
|
||||
if (do_bounds_check) {
|
||||
#ifdef WIN32
|
||||
error("bound checking currently not available for Windows");
|
||||
#else
|
||||
int *p, *p_end;
|
||||
__bound_init();
|
||||
/* add all known static regions */
|
||||
@ -6068,6 +6165,7 @@ int launch_exe(int argc, char **argv)
|
||||
__bound_new_region((void *)p[0], p[1]);
|
||||
p += 2;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
t = (int (*)())s->c;
|
||||
@ -6077,7 +6175,7 @@ int launch_exe(int argc, char **argv)
|
||||
|
||||
void help(void)
|
||||
{
|
||||
printf("tcc version 0.9.3 - Tiny C Compiler - Copyright (C) 2001, 2002 Fabrice Bellard\n"
|
||||
printf("tcc version 0.9.4 - Tiny C Compiler - Copyright (C) 2001, 2002 Fabrice Bellard\n"
|
||||
"usage: tcc [-Idir] [-Dsym[=val]] [-Usym] [-llib] [-g] [-b]\n"
|
||||
" [-i infile] infile [infile_args...]\n"
|
||||
"\n"
|
||||
@ -6103,7 +6201,7 @@ int main(int argc, char **argv)
|
||||
|
||||
/* add all tokens */
|
||||
tok_ident = TOK_IDENT;
|
||||
p = "int\0void\0char\0if\0else\0while\0break\0return\0for\0extern\0static\0unsigned\0goto\0do\0continue\0switch\0case\0const\0volatile\0long\0register\0signed\0auto\0inline\0restrict\0float\0double\0_Bool\0short\0struct\0union\0typedef\0default\0enum\0sizeof\0__attribute__\0define\0include\0ifdef\0ifndef\0elif\0endif\0defined\0undef\0error\0line\0__LINE__\0__FILE__\0__DATE__\0__TIME__\0__VA_ARGS__\0__func__\0main\0section\0__section__\0aligned\0__aligned__\0unused\0__unused__\0";
|
||||
p = "int\0void\0char\0if\0else\0while\0break\0return\0for\0extern\0static\0unsigned\0goto\0do\0continue\0switch\0case\0const\0volatile\0long\0register\0signed\0__signed__\0auto\0inline\0__inline__\0restrict\0float\0double\0_Bool\0short\0struct\0union\0typedef\0default\0enum\0sizeof\0__attribute__\0define\0include\0ifdef\0ifndef\0elif\0endif\0defined\0undef\0error\0line\0__LINE__\0__FILE__\0__DATE__\0__TIME__\0__VA_ARGS__\0__func__\0main\0section\0__section__\0aligned\0__aligned__\0unused\0__unused__\0";
|
||||
while (*p) {
|
||||
r = p;
|
||||
while (*r++);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user