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authorUlrich Drepper <drepper@redhat.com>2002-02-13 08:03:56 +0000
committerUlrich Drepper <drepper@redhat.com>2002-02-13 08:03:56 +0000
commitaed283dd456e7566cbfef88abe7b235ca77cc23c (patch)
tree39e854a8a182adce9cc8876c27a0a1d8b07d878e /elf
parent712ac5b11c3f250c4354d92ee5a902c67b6d2045 (diff)
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Update.
2002-02-12 Ulrich Drepper <drepper@redhat.com> * sysdeps/generic/dl-tls.c (TLS_DTV_UNALLOCATED): Renamed from TLS_DTV_UNALLOCATE. (oom): New function. (_dl_next_tls_modid): Rewrite to handle dl_tls_dtv_slotinfo_list. (_dl_determine_tlsoffset): Likewise. (_dl_allocate_tls): Likewise. (__TLS_GET_ADDR): Define if not already defined. (_dl_tls_symaddr): New function. (allocate_and_init): New function. (__tls_get_addr): Actually implement handling of generation counter and deferred allocation. * sysdeps/generic/ldsodefs.h (_rtld_global): Remove _dl_initimage_list, add _dl_tls_dtv_slotinfo_list, _dl_tls_static_nelem, and _dl_tls_generation. Define TLS_SLOTINFO_SURPLUS and DTV_SURPLUS. Declare _dl_tls_symaddr. * sysdeps/i386/dl-tls.h: Disable __tls_get_addr handling unless SHARED. * include/link.h (struct link_map): Remove l_tls_nextimage and l_tls_previmage. * elf/dl-sym.c (_dl_sym): After successful lookup call _dl_tls_symaddr instead of DL_SYMBOL_ADDRESS for STT_TLS symbols. (_dl_vsym): Likewise. * elf/rtld.c (_dl_start_final): Adjust initdtv initialization for new layout. (dl_main): Allow PT_TLS be present for empty segment. Remove nextimage list handling. Instead add all modules using TLS to dl_tls_dtv_slotinfo_list. * elf/dl-open.c (dl_open_worker): After successfully loading all objects add those with TLS to the dl_tls_dtv_slotinfo_list list. * elf/dl-load.c (_dl_map_object_from_fd): If PT_TLS entry is for an empty segment don't do anything. Remove handling of initimage list. * elf/Versions [ld] (GLIBC_2.0): Add __libc_memalign. (GLIBC_PRIVATE): Add _dl_tls_symaddr. * elf/dl-minimal.c: Define __libc_memalign. * elf/dl-support.c: Remove _dl_initimage_list. Add _dl_tls_dtv_slotinfo_list, _dl_tls_static_nelem, and _dl_tls_generation. * include/stdlib.h: Declare __libc_memalign. * elf/Makefile: Add rules to build and run tst-tls4 and tst-tls5. * elf/tst-tls4.c: New file. * elf/tst-tls5.c: New file. * elf/tst-tlsmod2.c: New file. * elf/tls-macros.h: asms using ___tls_get_addr destroy %ecx and %edx. * elf/tst-tlsmod1.c: Don't define variables unles USE_TLS. * elf/tst-tls1.c: Use test-skeleton.c. * elf/tst-tls2.c: Likewise. * elf/tst-tls3.c: Likewise. * elf/dl-conflict.c (RESOLVE_MAP): Return NULL not 0. * sysdeps/mips/machine-gmon.h: Update MCOUNT for current GCC behavior.
Diffstat (limited to 'elf')
-rw-r--r--elf/Makefile10
-rw-r--r--elf/Versions4
-rw-r--r--elf/dl-load.c32
-rw-r--r--elf/dl-minimal.c12
-rw-r--r--elf/dl-open.c84
-rw-r--r--elf/dl-support.c12
-rw-r--r--elf/dl-sym.c22
-rw-r--r--elf/rtld.c131
-rw-r--r--elf/tls-macros.h16
-rw-r--r--elf/tst-tls1.c10
-rw-r--r--elf/tst-tls2.c10
-rw-r--r--elf/tst-tls3.c10
-rw-r--r--elf/tst-tls4.c56
-rw-r--r--elf/tst-tls5.c72
-rw-r--r--elf/tst-tlsmod1.c2
-rw-r--r--elf/tst-tlsmod2.c32
16 files changed, 409 insertions, 106 deletions
diff --git a/elf/Makefile b/elf/Makefile
index 9c5d4f6..4ef1614 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -119,7 +119,7 @@ tests = loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
$(tests-nodlopen-$(have-z-nodlopen)) neededtest neededtest2 \
neededtest3 neededtest4 unload2 lateglobal initfirst global \
restest2 next dblload dblunload reldep5 reldep6 tst-tls1 tst-tls2 \
- tst-tls3
+ tst-tls3 tst-tls4 tst-tls5
test-srcs = tst-pathopt
tests-vis-yes = vismain
tests-nodelete-yes = nodelete
@@ -137,7 +137,7 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
unload2mod unload2dep ltglobmod1 ltglobmod2 pathoptobj \
dblloadmod1 dblloadmod2 dblloadmod3 reldepmod5 reldepmod6 \
reldep6mod0 reldep6mod1 reldep6mod2 reldep6mod3 reldep6mod4 \
- tst-tlsmod1
+ tst-tlsmod1 tst-tlsmod2
modules-vis-yes = vismod1 vismod2 vismod3
modules-nodelete-yes = nodelmod1 nodelmod2 nodelmod3 nodelmod4
modules-nodlopen-yes = nodlopenmod nodlopenmod2
@@ -442,3 +442,9 @@ $(objpfx)reldep6: $(libdl)
$(objpfx)reldep6.out: $(objpfx)reldep6mod3.so $(objpfx)reldep6mod4.so
$(objpfx)tst-tls3: $(objpfx)tst-tlsmod1.so
+
+$(objpfx)tst-tls4: $(libdl)
+$(objpfx)tst-tls4.out: $(objpfx)tst-tlsmod2.so
+
+$(objpfx)tst-tls5: $(libdl)
+$(objpfx)tst-tls5.out: $(objpfx)tst-tlsmod2.so
diff --git a/elf/Versions b/elf/Versions
index 8d8a1e8..927e26f 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -27,7 +27,7 @@ libc {
ld {
GLIBC_2.0 {
# Function from libc.so which must be shared with libc.
- calloc; free; malloc; realloc;
+ calloc; free; malloc; realloc; __libc_memalign;
_r_debug;
}
@@ -49,6 +49,6 @@ ld {
_dl_map_object; _dl_map_object_deps; _dl_out_of_memory;
_dl_relocate_object; _dl_signal_error; _dl_start_profile; _dl_starting_up;
_dl_unload_cache;
- _rtld_global;
+ _rtld_global; _dl_tls_symaddr;
}
}
diff --git a/elf/dl-load.c b/elf/dl-load.c
index 1fffe72..48e7cba 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -941,30 +941,18 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
#ifdef USE_TLS
case PT_TLS:
- l->l_tls_blocksize = ph->p_memsz;
- l->l_tls_align = ph->p_align;
- l->l_tls_initimage_size = ph->p_filesz;
- /* Since we don't know the load address yet only store the
- offset. We will adjust it later. */
- l->l_tls_initimage = (void *) ph->p_offset;
-
- /* This is the first element of the initialization image list.
- It is created as a circular list so that we can easily
- append to it. */
- if (GL(dl_initimage_list) == NULL)
- GL(dl_initimage_list) = l->l_tls_nextimage = l->l_tls_previmage
- = l;
- else
+ if (ph->p_memsz > 0)
{
- l->l_tls_nextimage = GL(dl_initimage_list)->l_tls_nextimage;
- l->l_tls_nextimage->l_tls_previmage = l;
- l->l_tls_previmage = GL(dl_initimage_list);
- l->l_tls_previmage->l_tls_nextimage = l;
- GL(dl_initimage_list) = l;
+ l->l_tls_blocksize = ph->p_memsz;
+ l->l_tls_align = ph->p_align;
+ l->l_tls_initimage_size = ph->p_filesz;
+ /* Since we don't know the load address yet only store the
+ offset. We will adjust it later. */
+ l->l_tls_initimage = (void *) ph->p_offset;
+
+ /* Assign the next available module ID. */
+ l->l_tls_modid = _dl_next_tls_modid ();
}
-
- /* Assign the next available module ID. */
- l->l_tls_modid = _dl_next_tls_modid ();
break;
#endif
}
diff --git a/elf/dl-minimal.c b/elf/dl-minimal.c
index c65151c..275ad86 100644
--- a/elf/dl-minimal.c
+++ b/elf/dl-minimal.c
@@ -21,8 +21,9 @@
#include <limits.h>
#include <string.h>
#include <unistd.h>
-#include <sys/types.h>
#include <sys/mman.h>
+#include <sys/param.h>
+#include <sys/types.h>
#include <ldsodefs.h>
#include <stdio-common/_itoa.h>
@@ -120,6 +121,15 @@ realloc (void *ptr, size_t n)
assert (new == ptr);
return new;
}
+
+/* Return alligned memory block. */
+void * weak_function
+__libc_memalign (size_t align, size_t n)
+{
+ void *newp = malloc (n + align - 1);
+
+ return (void *) roundup ((uintptr_t) newp, align);
+}
/* Avoid signal frobnication in setjmp/longjmp. Keeps things smaller. */
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 8f30bc0..d9ed499 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -31,6 +31,7 @@
#include <bp-sym.h>
#include <dl-dst.h>
+#include <dl-tls.h>
extern ElfW(Addr) _dl_sysdep_start (void **start_argptr,
@@ -353,6 +354,73 @@ dl_open_worker (void *a)
imap->l_scope[cnt++] = &new->l_searchlist;
imap->l_scope[cnt] = NULL;
}
+#if USE_TLS
+ else if (new->l_searchlist.r_list[i]->l_opencount == 1
+ /* Only if the module defines thread local data. */
+ && __builtin_expect (new->l_searchlist.r_list[i]->l_tls_blocksize
+ > 0, 0))
+ {
+ /* Now that we know the object is loaded successfully add
+ modules containing TLS data to the dtv info table. We
+ might have to increase its size. */
+ struct dtv_slotinfo_list *listp;
+ struct dtv_slotinfo_list *prevp;
+ size_t idx = new->l_searchlist.r_list[i]->l_tls_modid;
+
+ assert (new->l_searchlist.r_list[i]->l_type == lt_loaded);
+
+ /* Find the place in the stv slotinfo list. */
+ listp = GL(dl_tls_dtv_slotinfo_list);
+ prevp = NULL; /* Needed to shut up gcc. */
+ do
+ {
+ /* Does it fit in the array of this list element? */
+ if (idx <= listp->len)
+ break;
+ prevp = listp;
+ }
+ while ((listp = listp->next) != NULL);
+
+ if (listp == NULL)
+ {
+ /* When we come here it means we have to add a new element
+ to the slotinfo list. And the new module must be in
+ the first slot. */
+ assert (idx == 0);
+
+ listp = prevp->next = (struct dtv_slotinfo_list *)
+ malloc (sizeof (struct dtv_slotinfo_list)
+ + TLS_SLOTINFO_SURPLUS * sizeof (struct dtv_slotinfo));
+ if (listp == NULL)
+ {
+ /* We ran out of memory. We will simply fail this
+ call but don't undo anything we did so far. The
+ application will crash or be terminated anyway very
+ soon. */
+
+ /* We have to do this since some entries in the dtv
+ slotinfo array might already point to this
+ generation. */
+ ++GL(dl_tls_generation);
+
+ _dl_signal_error (ENOMEM, "dlopen", NULL,
+ N_("cannot create TLS data structures"));
+ }
+
+ listp->len = TLS_SLOTINFO_SURPLUS;
+ listp->next = NULL;
+ memset (listp->slotinfo, '\0',
+ TLS_SLOTINFO_SURPLUS * sizeof (struct dtv_slotinfo));
+ }
+
+ /* Add the information into the slotinfo data structure. */
+ listp->slotinfo[idx].map = new->l_searchlist.r_list[i];
+ listp->slotinfo[idx].gen = GL(dl_tls_generation) + 1;
+ }
+
+ /* Bump the generation number. */
+ ++GL(dl_tls_generation);
+#endif
/* Run the initializer functions of new objects. */
_dl_init (new, __libc_argc, __libc_argv, __environ);
@@ -424,10 +492,18 @@ _dl_open (const char *file, int mode, const void *caller)
{
unsigned int i;
- /* Increment open counters for all objects since this has
- not happened yet. */
- for (i = 0; i < args.map->l_searchlist.r_nlist; ++i)
- ++args.map->l_searchlist.r_list[i]->l_opencount;
+ /* Increment open counters for all objects since this
+ sometimes has not happened yet. */
+ if (args.map->l_searchlist.r_list[0]->l_opencount == 0)
+ for (i = 0; i < args.map->l_searchlist.r_nlist; ++i)
+ ++args.map->l_searchlist.r_list[i]->l_opencount;
+
+ /* Maybe some of the modules which were loaded uses TLS.
+ Since it will be removed in the folowing _dl_close call
+ we have to mark the dtv array as having gaps to fill
+ the holes. This is a pessimistic assumption which won't
+ hurt if not true. */
+ GL(dl_tls_dtv_gaps) = true;
_dl_close (args.map);
}
diff --git a/elf/dl-support.c b/elf/dl-support.c
index 914b43f..876776a 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -138,20 +138,22 @@ int _dl_correct_cache_id = _DL_CACHE_DEFAULT_ID;
__libc_lock_define_initialized_recursive (, _dl_load_lock)
#ifdef USE_TLS
-/* Beginning of the list of link maps for objects which contain
- thread-local storage sections. This will be traversed to
- initialize new TLS blocks. */
-struct link_map *_dl_initimage_list;
/* Highest dtv index currently needed. */
size_t _dl_tls_max_dtv_idx;
/* Flag signalling whether there are gaps in the module ID allocation. */
bool _dl_tls_dtv_gaps;
-
+/* Information about the dtv slots. */
+struct dtv_slotinfo_list *_dl_tls_dtv_slotinfo_list;
+/* Number of modules in the static TLS block. */
+size_t _dl_tls_static_nelem;
/* Size of the static TLS block. */
size_t _dl_tls_static_size;
/* Alignment requirement of the static TLS block. */
size_t _dl_tls_static_align;
+
+/* Generation counter for the dtv. */
+size_t _dl_tls_generation;
#endif
diff --git a/elf/dl-sym.c b/elf/dl-sym.c
index b0db159..8cb5d2f 100644
--- a/elf/dl-sym.c
+++ b/elf/dl-sym.c
@@ -83,7 +83,16 @@ RTLD_NEXT used in code not dynamically loaded"));
}
if (ref != NULL)
- return DL_SYMBOL_ADDRESS (result, ref);
+ {
+#if defined USE_TLS && defined SHARED
+ if (ELFW(ST_TYPE) (ref->st_info) == STT_TLS)
+ /* The found symbol is a thread-local storage variable.
+ Return the address for to the current thread. */
+ return _dl_tls_symaddr (result, ref);
+#endif
+
+ return DL_SYMBOL_ADDRESS (result, ref);
+ }
return NULL;
}
@@ -152,7 +161,16 @@ RTLD_NEXT used in code not dynamically loaded"));
}
if (ref != NULL)
- return DL_SYMBOL_ADDRESS (result, ref);
+ {
+#if defined USE_TLS && defined SHARED
+ if (ELFW(ST_TYPE) (ref->st_info) == STT_TLS)
+ /* The found symbol is a thread-local storage variable.
+ Return the address for to the current thread. */
+ return _dl_tls_symaddr (result, ref);
+#endif
+
+ return DL_SYMBOL_ADDRESS (result, ref);
+ }
return NULL;
}
diff --git a/elf/rtld.c b/elf/rtld.c
index 6463ed6..d7653f2 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -223,7 +223,7 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p,
ElfW(Ehdr) *ehdr;
ElfW(Phdr) *phdr;
size_t cnt;
- dtv_t initdtv[2];
+ dtv_t initdtv[3];
#endif
if (HP_TIMING_AVAIL)
@@ -291,16 +291,18 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p,
tlsblock = (void *) (((uintptr_t) tlsblock + max_align - 1)
& ~(max_align - 1));
- /* Initialize the dtv. */
+ /* Initialize the dtv. [0] is the length, [1] the generation
+ counter. */
initdtv[0].counter = 1;
+ initdtv[1].counter = 0;
/* Initialize the TLS block. */
# if TLS_TCB_AT_TP
- initdtv[1].pointer = tlsblock;
+ initdtv[2].pointer = tlsblock;
# elif TLS_DTV_AT_TP
GL(dl_rtld_map).l_tls_offset = roundup (TLS_INIT_TCB_SIZE,
GL(dl_rtld_map).l_tls_align);
- initdtv[1].pointer = (char *) tlsblock + GL(dl_rtld_map).l_tls_offset);
+ initdtv[2].pointer = (char *) tlsblock + GL(dl_rtld_map).l_tls_offset);
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif
@@ -723,22 +725,20 @@ of this helper program; chances are you did not intend to run this program.\n\
break;
#ifdef USE_TLS
case PT_TLS:
- /* Note that in the case the dynamic linker we duplicate work
- here since we read the PT_TLS entry already in
- _dl_start_final. But the result is repeatable so do not
- check for this special but unimportant case. */
- GL(dl_loaded)->l_tls_blocksize = ph->p_memsz;
- GL(dl_loaded)->l_tls_align = ph->p_align;
- GL(dl_loaded)->l_tls_initimage_size = ph->p_filesz;
- GL(dl_loaded)->l_tls_initimage = (void *) ph->p_vaddr;
- /* This is the first element of the initialization image list.
- We create the list as circular since we have to append at
- the end. */
- GL(dl_initimage_list) = GL(dl_loaded)->l_tls_nextimage
- = GL(dl_loaded)->l_tls_previmage = GL(dl_loaded);
-
- /* This image gets the ID one. */
- GL(dl_tls_max_dtv_idx) = GL(dl_loaded)->l_tls_modid = 1;
+ if (ph->p_memsz > 0)
+ {
+ /* Note that in the case the dynamic linker we duplicate work
+ here since we read the PT_TLS entry already in
+ _dl_start_final. But the result is repeatable so do not
+ check for this special but unimportant case. */
+ GL(dl_loaded)->l_tls_blocksize = ph->p_memsz;
+ GL(dl_loaded)->l_tls_align = ph->p_align;
+ GL(dl_loaded)->l_tls_initimage_size = ph->p_filesz;
+ GL(dl_loaded)->l_tls_initimage = (void *) ph->p_vaddr;
+
+ /* This image gets the ID one. */
+ GL(dl_tls_max_dtv_idx) = GL(dl_loaded)->l_tls_modid = 1;
+ }
break;
#endif
}
@@ -1188,43 +1188,66 @@ of this helper program; chances are you did not intend to run this program.\n\
use the static model. First add the dynamic linker to the list
if it also uses TLS. */
if (GL(dl_rtld_map).l_tls_blocksize != 0)
+ /* Assign a module ID. */
+ GL(dl_rtld_map).l_tls_modid = _dl_next_tls_modid ();
+
+# ifndef SHARED
+ /* If dynamic loading of modules with TLS is impossible we do not
+ have to initialize any of the TLS functionality unless any of the
+ initial modules uses TLS. */
+ if (GL(dl_tls_max_dtv_idx) > 0)
+# endif
{
- /* At to the list. */
- if (GL(dl_initimage_list) == NULL)
- GL(dl_initimage_list) = GL(dl_rtld_map).l_tls_nextimage
- = GL(dl_rtld_map).l_tls_previmage = &GL(dl_rtld_map);
- else
- {
- GL(dl_rtld_map).l_tls_nextimage
- = GL(dl_initimage_list)->l_tls_nextimage;
- GL(dl_rtld_map).l_tls_nextimage->l_tls_previmage
- = &GL(dl_rtld_map);
- GL(dl_rtld_map).l_tls_previmage = GL(dl_initimage_list);
- GL(dl_rtld_map).l_tls_previmage->l_tls_nextimage
- = &GL(dl_rtld_map);
- GL(dl_initimage_list) = &GL(dl_rtld_map);
- }
+ struct link_map *l;
+ size_t nelem;
+ struct dtv_slotinfo *slotinfo;
+
+ /* Number of elements in the static TLS block. */
+ GL(dl_tls_static_nelem) = GL(dl_tls_max_dtv_idx);
+
+ /* Allocate the array which contains the information about the
+ dtv slots. We allocate a few entries more than needed to
+ avoid the need for reallocation. */
+ nelem = GL(dl_tls_max_dtv_idx) + 1 + TLS_SLOTINFO_SURPLUS;
+
+ /* Allocate. */
+ GL(dl_tls_dtv_slotinfo_list) = (struct dtv_slotinfo_list *)
+ malloc (sizeof (struct dtv_slotinfo_list)
+ + nelem * sizeof (struct dtv_slotinfo));
+ /* No need to check the return value. If memory allocation failed
+ the program would have been terminated. */
+
+ slotinfo = 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;
+
+ /* Fill in the information from the loaded modules. */
+ for (l = GL(dl_loaded), i = 0; l != NULL; l = l->l_next)
+ if (l->l_tls_blocksize != 0)
+ /* This is a module with TLS data. Store the map reference.
+ The generation counter is zero. */
+ slotinfo[++i].map = l;
+ assert (i == GL(dl_tls_max_dtv_idx));
+
+ /* Computer the TLS offsets for the various blocks. We call this
+ function even if none of the modules available at startup time
+ uses TLS to initialize some variables. */
+ _dl_determine_tlsoffset ();
+
+ /* Construct the static TLS block and the dtv for the initial
+ thread. For some platforms this will include allocating memory
+ for the thread descriptor. The memory for the TLS block will
+ never be freed. It should be allocated accordingly. The dtv
+ array can be changed if dynamic loading requires it. */
+ tcbp = _dl_allocate_tls ();
+ if (tcbp == NULL)
+ _dl_fatal_printf ("\
+cannot allocate TLS data structures for inital thread");
- /* Assign a module ID. */
- GL(dl_rtld_map).l_tls_modid = _dl_next_tls_modid ();
+ /* And finally install it for the main thread. */
+ TLS_INIT_TP (tcbp);
}
-
- /* Computer the TLS offsets for the various blocks. We call this
- function even if none of the modules available at startup time
- uses TLS to initialize some variables. */
- _dl_determine_tlsoffset (GL(dl_initimage_list));
-
- /* Construct the static TLS block and the dtv for the initial
- thread. For some platforms this will include allocating memory
- for the thread descriptor. The memory for the TLS block will
- never be freed. It should be allocated accordingly. The dtv
- array can be changed if dynamic loading requires it. */
- tcbp = _dl_allocate_tls ();
- if (tcbp == NULL)
- _dl_fatal_printf ("cannot allocate TLS data structures for inital thread");
-
- /* And finally install it for the main thread. */
- TLS_INIT_TP (tcbp);
#endif
if (GL(dl_loaded)->l_info [ADDRIDX (DT_GNU_LIBLIST)]
diff --git a/elf/tls-macros.h b/elf/tls-macros.h
index 35b57d4..26745e9 100644
--- a/elf/tls-macros.h
+++ b/elf/tls-macros.h
@@ -49,15 +49,15 @@
# ifdef PIC
# define TLS_LD(x) \
- ({ int *__l; \
+ ({ int *__l, __c, __d; \
asm ("leal " #x "@tlsldm(%%ebx),%%eax\n\t" \
"call ___tls_get_addr@plt\n\t" \
"leal " #x "@dtpoff(%%eax), %%eax" \
- : "=a" (__l)); \
+ : "=a" (__l), "=&c" (__c), "=&d" (__d)); \
__l; })
# else
# define TLS_LD(x) \
- ({ int *__l, __b; \
+ ({ int *__l, __b, __c, __d; \
asm ("call 1f\n\t" \
".subsection 1\n" \
"1:\tmovl (%%esp), %%ebx\n\t" \
@@ -67,21 +67,21 @@
"leal " #x "@tlsldm(%%ebx),%%eax\n\t" \
"call ___tls_get_addr@plt\n\t" \
"leal " #x "@dtpoff(%%eax), %%eax" \
- : "=a" (__l), "=&b" (__b)); \
+ : "=a" (__l), "=&b" (__b), "=&c" (__c), "=&d" (__d)); \
__l; })
# endif
# ifdef PIC
# define TLS_GD(x) \
- ({ int *__l; \
+ ({ int *__l, __c, __d; \
asm ("leal " #x "@tlsgd(%%ebx),%%eax\n\t" \
"call ___tls_get_addr@plt\n\t" \
"nop" \
- : "=a" (__l)); \
+ : "=a" (__l), "=&c" (__c), "=&d" (__d)); \
__l; })
# else
# define TLS_GD(x) \
- ({ int *__l, __b; \
+ ({ int *__l, __b, __c, __d; \
asm ("call 1f\n\t" \
".subsection 1\n" \
"1:\tmovl (%%esp), %%ebx\n\t" \
@@ -91,7 +91,7 @@
"leal " #x "@tlsgd(%%ebx),%%eax\n\t" \
"call ___tls_get_addr@plt\n\t" \
"nop" \
- : "=a" (__l), "=&b" (__b)); \
+ : "=a" (__l), "=&b" (__b), "=&c" (__c), "=&d" (__d)); \
__l; })
# endif
diff --git a/elf/tst-tls1.c b/elf/tst-tls1.c
index 5e67482..74e9a91 100644
--- a/elf/tst-tls1.c
+++ b/elf/tst-tls1.c
@@ -5,13 +5,16 @@
#include "tls-macros.h"
+#ifdef USE_TLS
/* Two common 'int' variables in TLS. */
COMMON_INT_DEF(foo);
COMMON_INT_DEF(bar);
+#endif
-int
-main (void)
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
{
#ifdef USE_TLS
int result = 0;
@@ -82,3 +85,6 @@ main (void)
return 0;
#endif
}
+
+
+#include "../test-skeleton.c"
diff --git a/elf/tst-tls2.c b/elf/tst-tls2.c
index 1810ffa..a15c5f5 100644
--- a/elf/tst-tls2.c
+++ b/elf/tst-tls2.c
@@ -5,13 +5,16 @@
#include "tls-macros.h"
+#ifdef USE_TLS
/* Two 'int' variables in TLS. */
VAR_INT_DEF(foo);
VAR_INT_DEF(bar);
+#endif
-int
-main (void)
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
{
#ifdef USE_TLS
int result = 0;
@@ -82,3 +85,6 @@ main (void)
return 0;
#endif
}
+
+
+#include "../test-skeleton.c"
diff --git a/elf/tst-tls3.c b/elf/tst-tls3.c
index c86f184..58bb183 100644
--- a/elf/tst-tls3.c
+++ b/elf/tst-tls3.c
@@ -5,17 +5,20 @@
#include "tls-macros.h"
+#ifdef USE_TLS
/* One define int variable, two externs. */
COMMON_INT_DECL(foo);
VAR_INT_DECL(bar);
VAR_INT_DEF(baz);
+#endif
extern int in_dso (void);
-int
-main (void)
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
{
#ifdef USE_TLS
int result = 0;
@@ -67,3 +70,6 @@ main (void)
return 0;
#endif
}
+
+
+#include "../test-skeleton.c"
diff --git a/elf/tst-tls4.c b/elf/tst-tls4.c
new file mode 100644
index 0000000..f92ee53
--- /dev/null
+++ b/elf/tst-tls4.c
@@ -0,0 +1,56 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <tls.h>
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+#ifdef USE_TLS
+ static const char modname[] = "tst-tlsmod2.so";
+ int result = 0;
+ int *foop;
+ int (*fp) (int, int *);
+ void *h;
+
+ h = dlopen (modname, RTLD_LAZY);
+ if (h == NULL)
+ {
+ printf ("cannot open '%s': %s\n", modname, dlerror ());
+ exit (1);
+ }
+
+ fp = dlsym (h, "in_dso");
+ if (fp == NULL)
+ {
+ printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
+ exit (1);
+ }
+
+ result |= fp (0, NULL);
+
+ foop = dlsym (h, "foo");
+ if (foop == NULL)
+ {
+ printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
+ exit (1);
+ }
+ if (*foop != 16)
+ {
+ puts ("foo != 16");
+ result = 1;
+ }
+
+ dlclose (h);
+
+ return result;
+#else
+ return 0;
+#endif
+}
+
+
+#include "../test-skeleton.c"
diff --git a/elf/tst-tls5.c b/elf/tst-tls5.c
new file mode 100644
index 0000000..a571d2c
--- /dev/null
+++ b/elf/tst-tls5.c
@@ -0,0 +1,72 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <tls.h>
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+#ifdef USE_TLS
+ static const char modname[] = "tst-tlsmod2.so";
+ int result = 0;
+ int *foop;
+ int *foop2;
+ int (*fp) (int, int *);
+ void *h;
+
+ h = dlopen (modname, RTLD_LAZY);
+ if (h == NULL)
+ {
+ printf ("cannot open '%s': %s\n", modname, dlerror ());
+ exit (1);
+ }
+
+ foop = dlsym (h, "foo");
+ if (foop == NULL)
+ {
+ printf ("cannot get symbol 'foo': %s\n", dlerror ());
+ exit (1);
+ }
+
+ *foop = 42;
+
+ fp = dlsym (h, "in_dso");
+ if (fp == NULL)
+ {
+ printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
+ exit (1);
+ }
+
+ result |= fp (42, foop);
+
+ foop2 = dlsym (h, "foo");
+ if (foop2 == NULL)
+ {
+ printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
+ exit (1);
+ }
+
+ if (foop != foop2)
+ {
+ puts ("address of 'foo' different the second time");
+ result = 1;
+ }
+ else if (*foop != 16)
+ {
+ puts ("foo != 16");
+ result = 1;
+ }
+
+ dlclose (h);
+
+ return result;
+#else
+ return 0;
+#endif
+}
+
+
+#include "../test-skeleton.c"
diff --git a/elf/tst-tlsmod1.c b/elf/tst-tlsmod1.c
index 3a63286..cca8df6 100644
--- a/elf/tst-tlsmod1.c
+++ b/elf/tst-tlsmod1.c
@@ -4,10 +4,12 @@
#include "tls-macros.h"
+#ifdef USE_TLS
/* One define int variable, two externs. */
COMMON_INT_DEF(foo);
VAR_INT_DEF(bar);
VAR_INT_DECL(baz);
+#endif
int
diff --git a/elf/tst-tlsmod2.c b/elf/tst-tlsmod2.c
new file mode 100644
index 0000000..30ed671
--- /dev/null
+++ b/elf/tst-tlsmod2.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+
+#include <tls.h>
+#include "tls-macros.h"
+
+#ifdef USE_TLS
+
+COMMON_INT_DEF(foo);
+
+
+int
+in_dso (int n, int *caller_foop)
+{
+ int *foop = TLS_GD (foo);
+ int result = 0;
+
+ if (caller_foop != NULL && foop != caller_foop)
+ {
+ printf ("callers address of foo differs: %p vs %p\n", caller_foop, foop);
+ result = 1;
+ }
+ else if (*foop != n)
+ {
+ printf ("foo != %d\n", n);
+ result = 1;
+ }
+
+ *foop = 16;
+
+ return result;
+}
+#endif