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.

1 files changed, 10 insertions, 22 deletions

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
 	}