1 /* vi: set sw=4 ts=4: */
3 * Copyright (C) 2000-2005 by Erik Andersen <andersen@codepoet.org>
5 * GNU Lesser General Public License version 2.1 or later.
13 /* Prepare for the case that `__builtin_expect' is not available. */
14 #if defined __GNUC__ && __GNUC__ == 2 && __GNUC_MINOR__ < 96
15 #define __builtin_expect(x, expected_value) (x)
18 # define likely(x) __builtin_expect((!!(x)),1)
21 # define unlikely(x) __builtin_expect((!!(x)),0)
23 #ifndef __LINUX_COMPILER_H
24 #define __LINUX_COMPILER_H
27 /* Pull in compiler and arch stuff */
31 #include <bits/fcntl.h>
32 #include <bits/wordsize.h>
33 /* Pull in the arch specific type information */
34 #include <sys/types.h>
35 /* Pull in the arch specific page size */
36 #include <bits/uClibc_page.h>
37 /* Pull in the MIN macro */
38 #include <sys/param.h>
39 /* Pull in the ldso syscalls and string functions */
40 #ifndef __ARCH_HAS_NO_SHARED__
41 #include <dl-syscall.h>
42 #include <dl-string.h>
44 /* Now the ldso specific headers */
46 #ifdef __UCLIBC_HAS_TLS__
52 /* common align masks, if not specified by sysdep headers */
54 #define ADDR_ALIGN (_dl_pagesize - 1)
58 #define PAGE_ALIGN (~ADDR_ALIGN)
62 #define OFFS_ALIGN (PAGE_ALIGN & ~(1ul << (sizeof(_dl_pagesize) * 8 - 1)))
65 /* For INIT/FINI dependency sorting. */
66 struct init_fini_list {
67 struct init_fini_list *next;
68 struct elf_resolve *tpnt;
71 /* Global variables used within the shared library loader */
72 extern char *_dl_library_path; /* Where we look for libraries */
73 extern char *_dl_preload; /* Things to be loaded before the libs */
74 extern char *_dl_ldsopath; /* Where the shared lib loader was found */
75 extern const char *_dl_progname; /* The name of the executable being run */
76 extern size_t _dl_pagesize; /* Store the page size for use later */
78 #if defined(USE_TLS) && USE_TLS
79 extern void _dl_add_to_slotinfo (struct link_map *l);
80 extern void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void);
84 void _dl_add_to_slotinfo (struct link_map *l);
85 void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void);
87 #ifdef __SUPPORT_LD_DEBUG__
88 extern char *_dl_debug;
89 extern char *_dl_debug_symbols;
90 extern char *_dl_debug_move;
91 extern char *_dl_debug_reloc;
92 extern char *_dl_debug_detail;
93 extern char *_dl_debug_nofixups;
94 extern char *_dl_debug_bindings;
95 extern int _dl_debug_file;
96 # define __dl_debug_dprint(fmt, args...) \
97 _dl_dprintf(_dl_debug_file, "%s:%i: " fmt, __FUNCTION__, __LINE__, ## args);
98 # define _dl_if_debug_dprint(fmt, args...) \
99 do { if (_dl_debug) __dl_debug_dprint(fmt, ## args); } while (0)
101 # define __dl_debug_dprint(fmt, args...) do {} while (0)
102 # define _dl_if_debug_dprint(fmt, args...) do {} while (0)
103 # define _dl_debug_file 2
104 #endif /* __SUPPORT_LD_DEBUG__ */
107 # ifdef __SUPPORT_LD_DEBUG__
108 # define _dl_assert(expr) \
111 __dl_debug_dprint("assert(%s)\n", #expr); \
116 # define _dl_assert(expr) ((void)0)
120 # define _dl_assert(expr) assert(expr)
123 #ifdef __SUPPORT_LD_DEBUG_EARLY__
124 # define _dl_debug_early(fmt, args...) __dl_debug_dprint(fmt, ## args)
126 # define _dl_debug_early(fmt, args...) do {} while (0)
127 #endif /* __SUPPORT_LD_DEBUG_EARLY__ */
130 #define NULL ((void *) 0)
133 extern void *_dl_malloc(size_t size);
134 extern void *_dl_calloc(size_t __nmemb, size_t __size);
135 extern void *_dl_realloc(void *__ptr, size_t __size);
136 extern void _dl_free(void *);
137 extern char *_dl_getenv(const char *symbol, char **envp);
138 extern void _dl_unsetenv(const char *symbol, char **envp);
139 extern char *_dl_strdup(const char *string);
140 extern void _dl_dprintf(int, const char *, ...);
142 #ifndef DL_GET_READY_TO_RUN_EXTRA_PARMS
143 # define DL_GET_READY_TO_RUN_EXTRA_PARMS
145 #ifndef DL_GET_READY_TO_RUN_EXTRA_ARGS
146 # define DL_GET_READY_TO_RUN_EXTRA_ARGS
149 extern void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
150 ElfW(auxv_t) auxvt[AT_EGID + 1], char **envp, char **argv
151 DL_GET_READY_TO_RUN_EXTRA_PARMS);
153 #ifdef HAVE_DL_INLINES_H
154 #include <dl-inlines.h>
157 #else /* __ARCH_HAS_NO_SHARED__ */
161 #endif /* _LDSO_H_ */