1 | #ifndef LIBC_H
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2 | #define LIBC_H
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3 |
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4 | #include <stdlib.h>
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5 | #include <stdio.h>
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6 | #include <limits.h>
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7 |
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8 | struct __locale_map;
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9 |
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10 | struct __locale_struct {
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11 | const struct __locale_map *volatile cat[6];
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12 | };
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13 |
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14 | struct tls_module {
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15 | struct tls_module *next;
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16 | void *image;
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17 | size_t len, size, align, offset;
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18 | };
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19 |
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20 | struct __libc {
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21 | int can_do_threads;
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22 | int threaded;
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23 | int secure;
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24 | volatile int threads_minus_1;
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25 | size_t *auxv;
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26 | struct tls_module *tls_head;
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27 | size_t tls_size, tls_align, tls_cnt;
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28 | size_t page_size;
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29 | struct __locale_struct global_locale;
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30 | };
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31 |
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32 | #ifndef PAGE_SIZE
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33 | #define PAGE_SIZE libc.page_size
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34 | #endif
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35 |
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36 | #ifdef __PIC__
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37 | #define ATTR_LIBC_VISIBILITY __attribute__((visibility("hidden")))
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38 | #else
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39 | #define ATTR_LIBC_VISIBILITY
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40 | #endif
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41 |
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42 | extern struct __libc __libc ATTR_LIBC_VISIBILITY;
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43 | #define libc __libc
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44 |
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45 | extern size_t __hwcap ATTR_LIBC_VISIBILITY;
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46 | extern size_t __sysinfo ATTR_LIBC_VISIBILITY;
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47 | extern char *__progname, *__progname_full;
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48 |
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49 | /* Designed to avoid any overhead in non-threaded processes */
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50 | void __lock(volatile int *) ATTR_LIBC_VISIBILITY;
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51 | void __unlock(volatile int *) ATTR_LIBC_VISIBILITY;
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52 | int __lockfile(FILE *) ATTR_LIBC_VISIBILITY;
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53 | void __unlockfile(FILE *) ATTR_LIBC_VISIBILITY;
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54 | #define LOCK(x) __lock(x)
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55 | #define UNLOCK(x) __unlock(x)
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56 |
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57 | void __synccall(void (*)(void *), void *);
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58 | int __setxid(int, int, int, int);
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59 |
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60 | extern char **__environ;
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61 |
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62 | #undef weak_alias
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63 | #define weak_alias(old, new) \
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64 | extern __typeof(old) new __attribute__((weak, alias(#old)))
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65 |
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66 | #undef LFS64_2
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67 | #define LFS64_2(x, y) weak_alias(x, y)
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68 |
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69 | #undef LFS64
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70 | #define LFS64(x) LFS64_2(x, x##64)
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71 |
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72 | #endif
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