#define ALLOW_ZERO_PLTGOT
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
#include "dl-tls.c"
#endif
_dl_debug_early("mmapping more memory\n");
_dl_mmap_zero = _dl_malloc_addr = _dl_mmap((void *) 0, rounded_size,
- PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_UNINITIALIZE, -1, 0);
if (_dl_mmap_check_error(_dl_mmap_zero)) {
_dl_dprintf(_dl_debug_file, "%s: mmap of a spare page failed!\n", _dl_progname);
_dl_exit(20);
return p;
}
-#if USE_TLS
-void * _dl_memalign (size_t __boundary, size_t __size)
+void _dl_free(void *p)
+{
+ if (_dl_free_function)
+ (*_dl_free_function) (p);
+}
+
+#if defined(USE_TLS) && USE_TLS
+void *_dl_memalign(size_t __boundary, size_t __size)
{
void *result;
int i = 0;
ElfW(Addr) relro_addr = 0;
size_t relro_size = 0;
struct stat st;
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
void *tcbp = NULL;
#endif
-
/* Wahoo!!! We managed to make a function call! Get malloc
* setup so we can use _dl_dprintf() to print debug noise
unlazy = RTLD_NOW;
}
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
_dl_error_catch_tsd = &_dl_initial_error_catch_tsd;
_dl_init_static_tls = &_dl_nothread_init_static_tls;
#endif
-#ifdef __UCLIBC_HAS_SSP__
- /* Set up the stack checker's canary. */
- stack_chk_guard = _dl_setup_stack_chk_guard ();
-# ifdef THREAD_SET_STACK_GUARD
- THREAD_SET_STACK_GUARD (stack_chk_guard);
-# ifdef __UCLIBC_HAS_SSP_COMPAT__
- __guard = stack_chk_guard;
-# endif
-# else
- __stack_chk_guard = stack_chk_guard;
-# endif
-#endif
-
/* At this point we are now free to examine the user application,
* and figure out which libraries are supposed to be called. Until
* we have this list, we will not be completely ready for dynamic
/* OK, fill this in - we did not have this before */
if (ppnt->p_type == PT_INTERP) {
- char *ptmp;
-
tpnt->libname = (char *) DL_RELOC_ADDR(app_tpnt->loadaddr, ppnt->p_vaddr);
-
- /* Store the path where the shared lib loader was found
- * for later use
- */
- _dl_ldsopath = _dl_strdup(tpnt->libname);
- ptmp = _dl_strrchr(_dl_ldsopath, '/');
- if (ptmp != _dl_ldsopath)
- *ptmp = '\0';
-
+#ifdef __LDSO_SEARCH_INTERP_PATH__
+ {
+ char *ptmp;
+ /* Store the path where the shared lib loader was found
+ * for later use
+ */
+ _dl_ldsopath = _dl_strdup(tpnt->libname);
+ ptmp = _dl_strrchr(_dl_ldsopath, '/');
+ if (ptmp != _dl_ldsopath)
+ *ptmp = '\0';
+ }
_dl_debug_early("Lib Loader: (%x) %s\n", (unsigned) DL_LOADADDR_BASE(tpnt->loadaddr), tpnt->libname);
+#endif
}
/* Discover any TLS sections if the target supports them. */
if (ppnt->p_type == PT_TLS) {
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
if (ppnt->p_memsz > 0) {
app_tpnt->l_tls_blocksize = ppnt->p_memsz;
app_tpnt->l_tls_align = ppnt->p_align;
app_tpnt->relro_addr = relro_addr;
app_tpnt->relro_size = relro_size;
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
/*
* Adjust the address of the TLS initialization image in
* case the executable is actually an ET_DYN object.
*/
- if (app_tpnt->l_tls_initimage != NULL)
- {
-#ifdef __SUPPORT_LD_DEBUG_EARLY__
- unsigned int tmp = (unsigned int) app_tpnt->l_tls_initimage;
-#endif
+ if (app_tpnt->l_tls_initimage != NULL) {
app_tpnt->l_tls_initimage =
(char *) app_tpnt->l_tls_initimage + app_tpnt->loadaddr;
- _dl_debug_early("Relocated TLS initial image from %x to %x (size = %x)\n", tmp, app_tpnt->l_tls_initimage, app_tpnt->l_tls_initimage_size);
-
+ _dl_debug_early("Relocated TLS initial image from %x to %x (size = %x)\n",
+ (unsigned int)app_tpnt->l_tls_initimage,
+ app_tpnt->l_tls_initimage, app_tpnt->l_tls_initimage_size);
}
#endif
#ifdef __LDSO_PRELOAD_FILE_SUPPORT__
do {
- struct stat st;
char *preload;
int fd;
char c, *cp, *cp2;
tpnt1 = _dl_load_shared_library(0, &rpnt, NULL, cp2, trace_loaded_objects);
if (!tpnt1) {
-#ifdef __LDSO_LDD_SUPPORT__
+# ifdef __LDSO_LDD_SUPPORT__
if (trace_loaded_objects)
_dl_dprintf(1, "\t%s => not found\n", cp2);
else
-#endif
+# endif
{
_dl_dprintf(_dl_debug_file, "%s: can't load library '%s'\n", _dl_progname, cp2);
_dl_exit(15);
_dl_debug_early("Loading: (%x) %s\n", DL_LOADADDR_BASE(tpnt1->loadaddr), tpnt1->libname);
-#ifdef __LDSO_LDD_SUPPORT__
+# ifdef __LDSO_LDD_SUPPORT__
if (trace_loaded_objects &&
tpnt1->usage_count == 1) {
_dl_dprintf(1, "\t%s => %s (%x)\n",
cp2, tpnt1->libname,
DL_LOADADDR_BASE(tpnt1->loadaddr));
}
-#endif
+# endif
}
/* find start of next library */
}
#endif
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
/* We do not initialize any of the TLS functionality unless any of the
* initial modules uses TLS. This makes dynamic loading of modules with
* TLS impossible, but to support it requires either eagerly doing setup
* used. Trying to do it lazily is too hairy to try when there could be
* multiple threads (from a non-TLS-using libpthread). */
bool was_tls_init_tp_called = tls_init_tp_called;
- if (tcbp == NULL)
- {
+ if (tcbp == NULL) {
_dl_debug_early("Calling init_tls()!\n");
tcbp = init_tls ();
}
#endif
+#ifdef __UCLIBC_HAS_SSP__
+ /* Set up the stack checker's canary. */
+ stack_chk_guard = _dl_setup_stack_chk_guard ();
+# ifdef THREAD_SET_STACK_GUARD
+ THREAD_SET_STACK_GUARD (stack_chk_guard);
+# ifdef __UCLIBC_HAS_SSP_COMPAT__
+ __guard = stack_chk_guard;
+# endif
+# else
+ __stack_chk_guard = stack_chk_guard;
+# endif
+#endif
+
_dl_debug_early("Beginning relocation fixups\n");
_dl_protect_relro (tpnt);
}
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
if (!was_tls_init_tp_called && _dl_tls_max_dtv_idx > 0)
++_dl_tls_generation;
/* And finally install it for the main thread. If ld.so itself uses
TLS we know the thread pointer was initialized earlier. */
- if (! tls_init_tp_called)
- {
+ if (! tls_init_tp_called) {
const char *lossage = (char *) TLS_INIT_TP (tcbp, USE___THREAD);
- if (__builtin_expect (lossage != NULL, 0))
- {
+ if (__builtin_expect (lossage != NULL, 0)) {
_dl_debug_early("cannot set up thread-local storage: %s\n", lossage);
_dl_exit(30);
}
_dl_malloc_function = (void* (*)(size_t)) (intptr_t) _dl_find_hash(__C_SYMBOL_PREFIX__ "malloc",
_dl_symbol_tables, NULL, ELF_RTYPE_CLASS_PLT, NULL);
-#if USE_TLS
+#if defined(USE_TLS) && USE_TLS
/* Find the real functions and make ldso functions use them from now on */
_dl_calloc_function = (void* (*)(size_t, size_t)) (intptr_t)
_dl_find_hash(__C_SYMBOL_PREFIX__ "calloc", _dl_symbol_tables, NULL, ELF_RTYPE_CLASS_PLT, NULL);
-
+
_dl_realloc_function = (void* (*)(void *, size_t)) (intptr_t)
_dl_find_hash(__C_SYMBOL_PREFIX__ "realloc", _dl_symbol_tables, NULL, ELF_RTYPE_CLASS_PLT, NULL);
-
+
_dl_free_function = (void (*)(void *)) (intptr_t)
_dl_find_hash(__C_SYMBOL_PREFIX__ "free", _dl_symbol_tables, NULL, ELF_RTYPE_CLASS_PLT, NULL);
-
+
_dl_memalign_function = (void* (*)(size_t, size_t)) (intptr_t)
_dl_find_hash(__C_SYMBOL_PREFIX__ "memalign", _dl_symbol_tables, NULL, ELF_RTYPE_CLASS_PLT, NULL);
-
+
#endif
/* Notify the debugger that all objects are now mapped in. */
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