+2002-12-06 Roland McGrath <roland@redhat.com>
+
+ * sysdeps/generic/libc-tls.c (__libc_setup_tls): Cope with zero ALIGN.
+
+ * malloc/hooks.c [_LIBC && (USE___THREAD || (USE_TLS && !SHARED))]
+ (malloc_starter, memalign_starter, free_starter): Don't define these.
+ * malloc/malloc.c [_LIBC && (USE___THREAD || (USE_TLS && !SHARED))]:
+ Don't declare them either.
+ * malloc/arena.c (ptmalloc_init) [_LIBC && USE_TLS]: Don't call
+ __pthread_initialize, so no need to set hooks to *_starter.
+ (ptmalloc_init_minimal): New function, broken out of ptmalloc_init.
+ [_LIBC && SHARED && USE_TLS && !USE___THREAD]
+ (__libc_malloc_pthread_startup): New function.
+ * malloc/Versions (libc: GLIBC_PRIVATE): New set, add that function.
+
+ * malloc/hooks.c (memalign_starter): New function.
+ * malloc/malloc.c: Declare it.
+ * malloc/arena.c (save_memalign_hook): New variable.
+ (ptmalloc_init): Set __memalign_hook to memalign_starter.
+
+ * elf/dl-minimal.c (free): Clear the memory.
+ (calloc): Just call malloc, knowing all memory it returns is cleared.
+
+ * sysdeps/generic/dl-tls.c (allocate_dtv): Use calloc instead of
+ malloc and memset; calloc can avoid the zeroing when redundant.
+ (_dl_tls_setup): Likewise.
+ * elf/dl-load.c (decompose_rpath): Likewise.
+ * sysdeps/generic/libc-tls.c (__libc_setup_tls): Comment out memset
+ call, since memory from sbrk at startup is already zero.
+
+ * elf/rtld.c (_dl_start, dl_main): TLS_INIT_TP macro now returns an
+ error string for failure, null for success. Update callers.
+ * sysdeps/generic/libc-tls.c (__libc_setup_tls): Likewise.
+ * elf/dl-load.c (_dl_map_object_from_fd): Likewise.
+
2002-12-05 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (sendfile): Change
{
/* This object is on the list of objects for which the
RUNPATH and RPATH must not be used. */
- result = (struct r_search_path_elem **)
- malloc (sizeof (*result));
+ result = calloc (1, sizeof *result);
if (result == NULL)
{
signal_error_cache:
INTUSE(_dl_signal_error) (ENOMEM, NULL, NULL, errstring);
}
- result[0] = NULL;
-
sps->dirs = result;
sps->malloced = 1;
}
/* Now we install the TCB in the thread register. */
- if (__builtin_expect (TLS_INIT_TP (tcb, 0), 0) != -1)
+ errstring = TLS_INIT_TP (tcb, 0);
+ if (__builtin_expect (errstring == NULL, 1))
{
/* Now we are all good. */
l->l_tls_modid = ++GL(dl_tls_max_dtv_idx);
}
/* The kernel is too old or somesuch. */
+ errval = 0;
_dl_deallocate_tls (tcb, 1);
+ goto call_lose;
}
#endif
void * weak_function
calloc (size_t nmemb, size_t size)
{
- size_t total = nmemb * size;
- void *result = malloc (total);
- return memset (result, '\0', total);
+ /* New memory from the trivial malloc above is always already cleared.
+ (We make sure that's true in the rare occasion it might not be,
+ by clearing memory in free, below.) */
+ return malloc (nmemb * size);
}
/* This will rarely be called. */
{
/* We can free only the last block allocated. */
if (ptr == alloc_last_block)
- alloc_ptr = alloc_last_block;
+ {
+ /* Since this is rare, we clear the freed block here
+ so that calloc can presume malloc returns cleared memory. */
+ memset (alloc_last_block, '\0', alloc_ptr - alloc_last_block);
+ alloc_ptr = alloc_last_block;
+ }
}
/* This is only called with the most recent block returned by malloc. */
INSTALL_DTV ((char *) tlsblock + bootstrap_map.l_tls_offset,
initdtv);
- if (TLS_INIT_TP ((char *) tlsblock + bootstrap_map.l_tls_offset, 0)
- != 0)
- _dl_fatal_printf ("cannot setup thread-local storage\n");
+ const char *lossage = TLS_INIT_TP ((char *) tlsblock
+ + bootstrap_map.l_tls_offset, 0);
# elif TLS_DTV_AT_TP
INSTALL_DTV (tlsblock, initdtv);
- if (TLS_INIT_TP (tlsblock, 0) != 0)
- _dl_fatal_printf ("cannot setup thread-local storage\n");
+ const char *lossage = TLS_INIT_TP (tlsblock, 0);
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif
+ if (__builtin_expect (lossage != NULL, 0))
+ _dl_fatal_printf ("cannot set up thread-local storage: %s\n",
+ lossage);
/* So far this is module number one. */
bootstrap_map.l_tls_modid = 1;
/* And finally install it for the main thread. If ld.so itself uses
TLS we know the thread pointer was initialized earlier. */
- TLS_INIT_TP (tcbp, USE___THREAD);
+ const char *lossage = TLS_INIT_TP (tcbp, USE___THREAD);
+ if (__builtin_expect (lossage != NULL, 0))
+ _dl_fatal_printf ("cannot set up thread-local storage: %s\n", lossage);
}
#endif
+2002-12-05 Roland McGrath <roland@redhat.com>
+
+ * pthread.c (__pthread_initialize_minimal)
+ [USE_TLS && SHARED && !USE___THREAD]: Initialize TLS and set up the
+ TCB if the dynamic linker didn't do it at startup.
+
+ * sysdeps/i386/tls.h (TLS_INIT_TP): Make it return zero or an error
+ string.
+ (TLS_DO_SET_THREAD_AREA, TLS_DO_MODIFY_LDT, TLS_SETUP_GS_SEGMENT):
+ Submacros updated.
+ * sysdeps/x86_64/tls.h (TLS_INIT_TP): Likewise.
+ * sysdeps/alpha/tls.h (TLS_INIT_TP): Likewise (always zero).
+
+2002-12-03 Roland McGrath <roland@redhat.com>
+
+ * pthread.c (pthread_initialize) [SHARED]: Copy dl_error_tsd value
+ from dynamic linker internal cell to new libc cell.
+
2002-11-28 Roland McGrath <roland@redhat.com>
* tst-context.c: #define IS_IN_libpthread around #include <tls.h>
/* Unlike in the dynamically linked case the dynamic linker has not
taken care of initializing the TLS data structures. */
__libc_setup_tls (TLS_TCB_SIZE, TLS_TCB_ALIGN);
+# elif !USE___THREAD
+ if (__builtin_expect (GL(dl_tls_max_dtv_idx) == 0, 0))
+ {
+ /* There is no actual TLS being used, so the thread register
+ was not initialized in the dynamic linker. */
+
+ /* We need to install special hooks so that the malloc and memalign
+ calls in _dl_tls_setup and _dl_allocate_tls won't cause full
+ malloc initialization that will try to set up its thread state. */
+
+ extern void __libc_malloc_pthread_startup (bool first_time);
+ __libc_malloc_pthread_startup (true);
+
+ if (__builtin_expect (_dl_tls_setup (), 0)
+ || __builtin_expect ((self = _dl_allocate_tls (NULL)) == NULL, 0))
+ {
+ static const char msg[] = "\
+cannot allocate TLS data structures for initial thread\n";
+ TEMP_FAILURE_RETRY (__libc_write (STDERR_FILENO,
+ msg, sizeof msg - 1));
+ abort ();
+ }
+ const char *lossage = TLS_INIT_TP (self, 0);
+ if (__builtin_expect (lossage != NULL, 0))
+ {
+ static const char msg[] = "cannot set up thread-local storage: ";
+ const char nl = '\n';
+ TEMP_FAILURE_RETRY (__libc_write (STDERR_FILENO,
+ msg, sizeof msg - 1));
+ TEMP_FAILURE_RETRY (__libc_write (STDERR_FILENO,
+ lossage, strlen (lossage)));
+ TEMP_FAILURE_RETRY (__libc_write (STDERR_FILENO, &nl, 1));
+ }
+
+ /* Though it was allocated with libc's malloc, that was done without
+ the user's __malloc_hook installed. A later realloc that uses
+ the hooks might not work with that block from the plain malloc.
+ So we record this block as unfreeable just as the dynamic linker
+ does when it allocates the DTV before the libc malloc exists. */
+ GL(dl_initial_dtv) = GET_DTV (self);
+
+ __libc_malloc_pthread_startup (false);
+ }
# endif
self = THREAD_SELF;
/* And fill in the pointer the the thread __pthread_handles array. */
__pthread_handles[0].h_descr = self;
-#else
+
+#else /* USE_TLS */
+
/* First of all init __pthread_handles[0] and [1]. */
# if __LT_SPINLOCK_INIT != 0
__pthread_handles[0].h_lock = __LOCK_INITIALIZER;
__pthread_smp_kernel = is_smp_system ();
#ifdef SHARED
+ /* Transfer the old value from the dynamic linker's internal location. */
+ *__libc_dl_error_tsd () = *(*GL(dl_error_catch_tsd)) ();
GL(dl_error_catch_tsd) = &__libc_dl_error_tsd;
#endif
}
register tcbhead_t *__self = (void *)(descr); \
__self->tcb = __self; \
__builtin_set_thread_pointer(__self); \
+ 0; \
})
/* Return the address of the dtv for the current thread. */
# endif
# if __ASSUME_LDT_WORKS > 0
-# define TLS_DO_MODIFY_LDT_KERNEL_CHECK /* Nothing to do. */
+# define TLS_DO_MODIFY_LDT_KERNEL_CHECK(doit) (doit) /* Nothing to check. */
# else
# include "useldt.h" /* For the structure. */
-# define TLS_DO_MODIFY_LDT_KERNEL_CHECK \
- if (__builtin_expect (GL(dl_osversion) < 131939, 0)) \
- _dl_fatal_printf ("kernel %u.%u.%u cannot support thread-local storage\n",\
- (GL(dl_osversion) >> 16) & 0xff, \
- (GL(dl_osversion) >> 8) & 0xff, \
- (GL(dl_osversion) >> 0) & 0xff);
+# define TLS_DO_MODIFY_LDT_KERNEL_CHECK(doit) \
+ (__builtin_expect (GL(dl_osversion) < 131939, 0) \
+ ? "kernel too old for thread-local storage support" \
+ : (doit))
# endif
# define TLS_DO_MODIFY_LDT(descr, nr) \
+TLS_DO_MODIFY_LDT_KERNEL_CHECK( \
({ \
- TLS_DO_MODIFY_LDT_KERNEL_CHECK \
struct modify_ldt_ldt_s ldt_entry = \
{ nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \
1, 0, 0, 1, 0, 1, 0 }; \
here. */ \
"m" (ldt_entry), TLS_EBX_ARG (1), "c" (&ldt_entry), \
"d" (sizeof (ldt_entry))); \
- __builtin_expect (result, 0) != 0 ? -1 : nr * 8 + 7; \
-})
+ __builtin_expect (result, 0) == 0 \
+ ? ({ asm ("movw %w0, %%gs" : : "q" ((nr) * 8 + 7)); NULL; }) \
+ : "cannot set up LDT for thread-local storage"; \
+}))
# define TLS_DO_SET_THREAD_AREA(descr, secondcall) \
({ \
to let the compiler know that we are accessing LDT_ENTRY \
here. */ \
TLS_EBX_ARG (&ldt_entry), "m" (ldt_entry)); \
- __builtin_expect (result, 0) == 0 ? ldt_entry.entry_number * 8 + 3 : -1; \
+ if (__builtin_expect (result, 0) == 0) \
+ asm ("movw %w0, %%gs" : : "q" (ldt_entry.entry_number * 8 + 3)); \
+ result; \
})
# ifdef __ASSUME_SET_THREAD_AREA_SYSCALL
-# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \
- TLS_DO_SET_THREAD_AREA (descr, firstcall)
+# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \
+ (TLS_DO_SET_THREAD_AREA (descr, firstcall) \
+ ? "set_thread_area failed when setting up thread-local storage" : NULL)
# elif defined __NR_set_thread_area
# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \
- ({ int __seg = TLS_DO_SET_THREAD_AREA (descr, secondcall); \
- __seg == -1 ? TLS_DO_MODIFY_LDT (descr, 0) : __seg; })
+ (TLS_DO_SET_THREAD_AREA (descr, secondcall) \
+ ? TLS_DO_MODIFY_LDT (descr, 0) : NULL)
# else
# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \
TLS_DO_MODIFY_LDT ((descr), 0)
# endif
+
/* Code to initially initialize the thread pointer. This might need
special attention since 'errno' is not yet available and if the
- operation can cause a failure 'errno' must not be touched. */
+ operation can cause a failure 'errno' must not be touched.
+
+ The value of this macro is null if successful, or an error string. */
# define TLS_INIT_TP(descr, secondcall) \
({ \
void *_descr = (descr); \
tcbhead_t *head = _descr; \
- int __gs; \
\
head->tcb = _descr; \
/* For now the thread descriptor is at the same address. */ \
head->self = _descr; \
\
- __gs = TLS_SETUP_GS_SEGMENT (_descr, secondcall); \
- if (__builtin_expect (__gs, 7) != -1) \
- { \
- asm ("movw %w0, %%gs" : : "q" (__gs)); \
- __gs = 0; \
- } \
- __gs; \
+ TLS_SETUP_GS_SEGMENT (_descr, secondcall); \
})
"D" ((unsigned long int) ARCH_SET_FS), \
"S" (_descr) \
: "memory", "cc", "r11", "cx"); \
- _result ? -1 : 0; \
+ \
+ _result ? "cannot set %fs base address for thread-local storage" : 0; \
})
/* Return the address of the dtv for the current thread. */
static __malloc_ptr_t (*save_malloc_hook) __MALLOC_P ((size_t __size,
__const __malloc_ptr_t));
+# if !defined _LIBC || !defined USE_TLS || (defined SHARED && !USE___THREAD)
+static __malloc_ptr_t (*save_memalign_hook) __MALLOC_P ((size_t __align,
+ size_t __size,
+ __const __malloc_ptr_t));
+# endif
static void (*save_free_hook) __MALLOC_P ((__malloc_ptr_t __ptr,
__const __malloc_ptr_t));
static Void_t* save_arena;
}
#endif /* _LIBC */
+/* Set up basic state so that _int_malloc et al can work. */
+static void
+ptmalloc_init_minimal __MALLOC_P((void))
+{
+#if DEFAULT_TOP_PAD != 0
+ mp_.top_pad = DEFAULT_TOP_PAD;
+#endif
+ mp_.n_mmaps_max = DEFAULT_MMAP_MAX;
+ mp_.mmap_threshold = DEFAULT_MMAP_THRESHOLD;
+ mp_.trim_threshold = DEFAULT_TRIM_THRESHOLD;
+ mp_.pagesize = malloc_getpagesize;
+}
+
+#ifdef _LIBC
+# if defined SHARED && defined USE_TLS && !USE___THREAD
+# include <stdbool.h>
+
+/* This is called by __pthread_initialize_minimal when it needs to use
+ malloc to set up the TLS state. We cannot do the full work of
+ ptmalloc_init (below) until __pthread_initialize_minimal has finished,
+ so it has to switch to using the special startup-time hooks while doing
+ those allocations. */
+void
+__libc_malloc_pthread_startup (bool first_time)
+{
+ if (first_time)
+ {
+ ptmalloc_init_minimal ();
+ save_malloc_hook = __malloc_hook;
+ save_memalign_hook = __memalign_hook;
+ save_free_hook = __free_hook;
+ __malloc_hook = malloc_starter;
+ __memalign_hook = memalign_starter;
+ __free_hook = free_starter;
+ }
+ else
+ {
+ __malloc_hook = save_malloc_hook;
+ __memalign_hook = save_memalign_hook;
+ __free_hook = save_free_hook;
+ }
+}
+# endif
+#endif
+
static void
ptmalloc_init __MALLOC_P((void))
{
if(__malloc_initialized >= 0) return;
__malloc_initialized = 0;
- mp_.top_pad = DEFAULT_TOP_PAD;
- mp_.n_mmaps_max = DEFAULT_MMAP_MAX;
- mp_.mmap_threshold = DEFAULT_MMAP_THRESHOLD;
- mp_.trim_threshold = DEFAULT_TRIM_THRESHOLD;
- mp_.pagesize = malloc_getpagesize;
+#ifdef _LIBC
+# if defined SHARED && defined USE_TLS && !USE___THREAD
+ /* ptmalloc_init_minimal may already have been called via
+ __libc_malloc_pthread_startup, above. */
+ if (mp_.pagesize == 0)
+# endif
+#endif
+ ptmalloc_init_minimal();
#ifndef NO_THREADS
+# if defined _LIBC && defined USE_TLS
+ /* We know __pthread_initialize_minimal has already been called,
+ and that is enough. */
+# define NO_STARTER
+# endif
+# ifndef NO_STARTER
/* With some threads implementations, creating thread-specific data
or initializing a mutex may call malloc() itself. Provide a
simple starter version (realloc() won't work). */
save_malloc_hook = __malloc_hook;
+ save_memalign_hook = __memalign_hook;
save_free_hook = __free_hook;
__malloc_hook = malloc_starter;
+ __memalign_hook = memalign_starter;
__free_hook = free_starter;
-#ifdef _LIBC
+# ifdef _LIBC
/* Initialize the pthreads interface. */
if (__pthread_initialize != NULL)
__pthread_initialize();
-#endif
+# endif /* !defined _LIBC */
+# endif /* !defined NO_STARTER */
#endif /* !defined NO_THREADS */
mutex_init(&main_arena.mutex);
main_arena.next = &main_arena;
tsd_setspecific(arena_key, (Void_t *)&main_arena);
thread_atfork(ptmalloc_lock_all, ptmalloc_unlock_all, ptmalloc_unlock_all2);
#ifndef NO_THREADS
+# ifndef NO_STARTER
__malloc_hook = save_malloc_hook;
+ __memalign_hook = save_memalign_hook;
__free_hook = save_free_hook;
+# else
+# undef NO_STARTER
+# endif
#endif
#ifdef _LIBC
secure = __libc_enable_secure;
#ifndef NO_THREADS
+# ifdef _LIBC
+# if USE___THREAD || (defined USE_TLS && !defined SHARED)
+ /* These routines are never needed in this configuration. */
+# define NO_STARTER
+# endif
+# endif
+
+# ifdef NO_STARTER
+# undef NO_STARTER
+# else
+
/* The following hooks are used when the global initialization in
ptmalloc_init() hasn't completed yet. */
return victim ? BOUNDED_N(victim, sz) : 0;
}
+static Void_t*
+#if __STD_C
+memalign_starter(size_t align, size_t sz, const Void_t *caller)
+#else
+memalign_starter(align, sz, caller) size_t align, sz; const Void_t *caller;
+#endif
+{
+ Void_t* victim;
+
+ victim = _int_memalign(&main_arena, align, sz);
+
+ return victim ? BOUNDED_N(victim, sz) : 0;
+}
+
static void
#if __STD_C
free_starter(Void_t* mem, const Void_t *caller)
_int_free(&main_arena, mem);
}
+# endif /* !defiend NO_STARTER */
#endif /* NO_THREADS */
static Void_t* memalign_check(size_t alignment, size_t bytes,
const Void_t *caller);
#ifndef NO_THREADS
+# ifdef _LIBC
+# if USE___THREAD || (defined USE_TLS && !defined SHARED)
+ /* These routines are never needed in this configuration. */
+# define NO_STARTER
+# endif
+# endif
+# ifdef NO_STARTER
+# undef NO_STARTER
+# else
static Void_t* malloc_starter(size_t sz, const Void_t *caller);
+static Void_t* memalign_starter(size_t aln, size_t sz, const Void_t *caller);
static void free_starter(Void_t* mem, const Void_t *caller);
+# endif
static Void_t* malloc_atfork(size_t sz, const Void_t *caller);
static void free_atfork(Void_t* mem, const Void_t *caller);
#endif
+2002-12-06 Roland McGrath <roland@redhat.com>
+
+ * allocatestack.c (__stack_user): Use uninitialized defn.
+ * init.c (__pthread_initialize_minimal): Initialize it here.
+
2002-12-05 Roland McGrath <roland@redhat.com>
+ * sysdeps/i386/tls.h (TLS_INIT_TP): Make it return zero or an error
+ string.
+ * sysdeps/x86_64/tls.h (TLS_INIT_TP): Likewise.
+
* sysdeps/unix/sysv/linux/i386/createthread.c (create_thread): Add
missing & here too.
/* List of the stacks in use. */
static LIST_HEAD (stack_used);
-/* List of the threads with user provided stacks in use. */
-LIST_HEAD (__stack_user);
+/* List of the threads with user provided stacks in use. No need to
+ initialize this, since it's done in __pthread_initialize_minimal. */
+list_t __stack_user __attribute__ ((nocommon));
hidden_def (__stack_user)
/* Number of threads running. */
THREAD_SETMEM (pd, cpuclock_offset, GL(dl_cpuclock_offset));
#endif
- /* Add the main thread to the list of all running threads. No need
- to get the lock we are alone so far. */
+ /* Initialize the list of all running threads with the main thread. */
+ INIT_LIST_HEAD (__stack_user);
list_add (&pd->header.data.list, &__stack_user);
which is necessary since we have changed it. */ \
TLS_SET_GS (_segdescr.desc.entry_number * 8 + 3); \
\
- _result; })
+ _result == 0 ? NULL \
+ : "set_thread_area failed when setting up thread-local storage"; })
/* Return the address of the dtv for the current thread. */
"S" (_descr) \
: "memory", "cc", "r11", "cx"); \
\
- _result ? -1 : 0; })
+ _result ? "cannot set %fs base address for thread-local storage" : 0; \
+ })
/* Return the address of the dtv for the current thread. */
const size_t nelem = 2 + TLS_SLOTINFO_SURPLUS;
- GL(dl_tls_dtv_slotinfo_list) =
- malloc (sizeof (struct dtv_slotinfo_list)
- + nelem * sizeof (struct dtv_slotinfo));
+ GL(dl_tls_dtv_slotinfo_list)
+ = calloc (1, (sizeof (struct dtv_slotinfo_list)
+ + nelem * sizeof (struct dtv_slotinfo)));
if (GL(dl_tls_dtv_slotinfo_list) == NULL)
return -1;
- memset (GL(dl_tls_dtv_slotinfo_list)->slotinfo, '\0',
- nelem * sizeof (struct dtv_slotinfo));
GL(dl_tls_dtv_slotinfo_list)->len = nelem;
- GL(dl_tls_dtv_slotinfo_list)->next = NULL;
/* Number of elements in the static TLS block. It can't be zero
because of various assumptions. The one element is null. */
initial set of modules. This should avoid in most cases expansions
of the dtv. */
dtv_length = GL(dl_tls_max_dtv_idx) + DTV_SURPLUS;
- dtv = (dtv_t *) malloc ((dtv_length + 2) * sizeof (dtv_t));
+ dtv = calloc (dtv_length + 2, sizeof (dtv_t));
if (dtv != NULL)
{
/* This is the initial length of the dtv. */
dtv[0].counter = dtv_length;
- /* Initialize all of the rest of the dtv (including the
- generation counter) with zero to indicate nothing there. */
- memset (dtv + 1, '\0', (dtv_length + 1) * sizeof (dtv_t));
+
+ /* The rest of the dtv (including the generation counter) is
+ Initialize with zero to indicate nothing there. */
/* Add the dtv to the thread data structures. */
INSTALL_DTV (result, dtv);
#include <ldsodefs.h>
#include <tls.h>
#include <unistd.h>
+#include <stdio.h>
#ifdef SHARED
#error makefile bug, this file is for static only
/* Initialize the TLS block. */
# if TLS_TCB_AT_TP
static_dtv[2].pointer = ((char *) tlsblock + tcb_offset
- - roundup (memsz, align));
- static_map.l_tls_offset = roundup (memsz, align);
+ - roundup (memsz, align ?: 1));
+ static_map.l_tls_offset = roundup (memsz, align ?: 1);
# elif TLS_DTV_AT_TP
tcb_offset = roundup (tcbsize, align);
static_dtv[2].pointer = (char *) tlsblock + tcb_offset;
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif
+ /* sbrk gives us zero'd memory, so we don't need this.
memset (__mempcpy (static_dtv[2].pointer, initimage, filesz),
'\0', memsz - filesz);
+ */
/* Install the pointer to the dtv. */
# if TLS_TCB_AT_TP
INSTALL_DTV ((char *) tlsblock + tcb_offset, static_dtv);
- TLS_INIT_TP ((char *) tlsblock + tcb_offset, 0);
+ const char *lossage = TLS_INIT_TP ((char *) tlsblock + tcb_offset, 0);
# elif TLS_DTV_AT_TP
INSTALL_DTV (tlsblock, static_dtv);
- TLS_INIT_TP (tlsblock, 0);
+ const char *lossage = TLS_INIT_TP (tlsblock, 0);
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif
+ if (__builtin_expect (lossage != NULL, 0))
+ __libc_fatal (lossage);
/* We have to create a fake link map which normally would be created
by the dynamic linker. It just has to have enough information to
git://sourceware.org / glibc.git / commitdiff