From 5d6feea8f54fe67cbeb7c35e35539b2efd4ead29 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Tue, 5 Feb 2002 08:02:04 +0000
Subject: Update.

	* elf/rtld.c (_dl_start): Fill TLS values in link map for rtld.
	* include/link.h (struct link_map): Add various members for TLS
	information.
	* sysdeps/generic/ldsodefs.h (struct rtld_global): Remove
	_rtld_tlsoffset, add _dl_initimage_list.
	* sysdeps/i386/dl-lookupcfg.h: New file.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Implement missing
	TLS relocation.  When using TLS we now use RESOLVE_MAP.
	(elf_machine_rela): Use RESOLVE_MAP instead of RESOLVE_MAP if TLS
	is used.

	* sysdeps/generic/dl-cache.c (_dl_cache_libcmp): Mark as possibly
	unused.
---
 elf/rtld.c | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

(limited to 'elf/rtld.c')

diff --git a/elf/rtld.c b/elf/rtld.c
index b7439b2..bdd12b4 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -222,10 +222,6 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p,
   ElfW(Ehdr) *ehdr;
   ElfW(Phdr) *phdr;
   size_t cnt;
-  size_t tlssize = 0;
-  size_t tlsimagesize = 0;
-  const void *tlsimage = NULL;
-  void *tlsblock = NULL;
   dtv_t initdtv[2];
 #endif
 
@@ -261,23 +257,26 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p,
   for (cnt = 0; cnt < ehdr->e_phnum; ++cnt)
     if (phdr[cnt].p_type == PT_TLS)
       {
+	void *tlsblock;
 	size_t align = MAX (TLS_INIT_TCB_ALIGN,  phdr[cnt].p_align);
 
-	tlssize = phdr[cnt].p_memsz;
-	tlsimagesize = phdr[cnt].p_filesz;
-	tlsimage = (void *) (bootstrap_map_p->l_addr + phdr[cnt].p_offset);
+	GL(dl_rtld_map).l_tls_blocksize = phdr[cnt].p_memsz;
+	GL(dl_rtld_map).l_tls_initimage_size = phdr[cnt].p_filesz;
+	GL(dl_rtld_map).l_tls_initimage = (void *) (bootstrap_map_p->l_addr
+						    + phdr[cnt].p_offset);
 
 	/* We can now allocate the initial TLS block.  This can happen
 	   on the stack.  We'll get the final memory later when we
 	   know all about the various objects loaded at startup
 	   time.  */
 # if TLS_TCB_AT_TP
-	tlsblock = alloca (roundup (tlssize, TLS_INIT_TCB_ALIGN)
+	tlsblock = alloca (roundup (GL(dl_rtld_map).l_tls_blocksize,
+				    TLS_INIT_TCB_ALIGN)
 			   + TLS_INIT_TCB_SIZE
 			   + align);
 # elif TLS_DTV_AT_TP
 	tlsblock = alloca (roundup (TLS_INIT_TCB_SIZE, phdr[cnt].p_align)
-			   + tlssize
+			   + GL(dl_rtld_map).l_tls_blocksize
 			   + align);
 # else
 	/* In case a model with a different layout for the TCB and DTV
@@ -295,24 +294,32 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p,
 # if TLS_TCB_AT_TP
 	initdtv[1].pointer = tlsblock;
 # elif TLS_DTV_AT_TP
-	GL(rtld_tlsoffset) = roundup (TLS_INIT_TCB_SIZE, phdr[cnt].p_align);
-	initdtv[1].pointer = (char *) tlsblock + GL(rtld_tlsoffset);
+	GL(dl_rtld_map).l_tls_offset = roundup (TLS_INIT_TCB_SIZE,
+						phdr[cnt].p_align);
+	initdtv[1].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
-	memset (__mempcpy (initdtv[1].pointer, tlsimage, tlsimagesize),
-		'\0', tlssize - tlsimagesize);
+	memset (__mempcpy (initdtv[1].pointer, GL(dl_rtld_map).l_tls_initimage,
+			   GL(dl_rtld_map).l_tls_initimage_size),
+		'\0', (GL(dl_rtld_map).l_tls_blocksize
+		       - GL(dl_rtld_map).l_tls_initimage_size));
 
 	/* Initialize the thread pointer.  */
 # if TLS_TCB_AT_TP
-	GL(rtld_tlsoffset) = roundup (tlssize, TLS_INIT_TCB_ALIGN);
-	TLS_INIT_TP ((char *) tlsblock + GL(rtld_tlsoffset), initdtv);
+	GL(dl_rtld_map).l_tls_offset
+	  = roundup (GL(dl_rtld_map).l_tls_blocksize, TLS_INIT_TCB_ALIGN);
+	TLS_INIT_TP ((char *) tlsblock + GL(dl_rtld_map).l_tls_offset,
+		     initdtv);
 # elif TLS_DTV_AT_TP
-	TLS_INIT_TP (tlsblock, intidtv);
+	TLS_INIT_TP (tlsblock, initdtv);
 # else
 #  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
 # endif
 
+	/* So far this is module number one.  */
+	GL(dl_rtld_map).l_tls_modid = 1;
+
 	/* There can only be one PT_TLS entry.  */
 	break;
       }
-- 
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