about summary refs log tree commit diff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--ChangeLog8
-rw-r--r--elf/rtld.c7
-rw-r--r--linuxthreads/ChangeLog9
-rw-r--r--linuxthreads/sysdeps/i386/tls.h17
-rw-r--r--linuxthreads/sysdeps/sh/tls.h2
-rw-r--r--sysdeps/generic/libc-tls.c4
-rw-r--r--sysdeps/generic/tls.h6
7 files changed, 38 insertions, 15 deletions
diff --git a/ChangeLog b/ChangeLog
index 9ebb06c63c..6116116ce8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2002-08-20  Ulrich Drepper  <drepper@redhat.com>
 
+	* elf/rtld.c (_dl_start): Pass extra argument 1 to TLS_INIT_TP.
+	(dl_main): Padd extra argument 0 to TLS_INIT_TP.
+	* sysdeps/generic/libc-tls.c (__libc_setup_tls): Pass extra
+	argument 1 to TLS_INIT_TP.
+	* sysdeps/generic/tls.h (TLS_INIT_TP): Describe new parameter.
+
 	* sysdeps/generic/dl-tls.c (allocate_dtv): Optimize a bit.
 
 	* elf/Versions [ld] (GLIBC_PRIVATE): Add _dl_get_tls_static_info.
@@ -47,7 +53,7 @@
 	* libio/tst-mmap-offend.c: New file.
 	* libio/Makefile (tests): Add it.
 
-	* locale/loadarchive.c (_nl_load_locale_from_archive) Store strdup of
+	* locale/loadarchive.c (_nl_load_locale_from_archive): Store strdup of
 	the name as passed, rather than the name in the archive dictionary.
 
 2002-08-15  Ulrich Drepper  <drepper@redhat.com>
diff --git a/elf/rtld.c b/elf/rtld.c
index 5c426000ad..ab02a71ea3 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -262,11 +262,12 @@ _dl_start (void *arg)
 	INSTALL_DTV ((char *) tlsblock + bootstrap_map.l_tls_offset,
 		     initdtv);
 
-	if (TLS_INIT_TP ((char *) tlsblock + bootstrap_map.l_tls_offset) != 0)
+	if (TLS_INIT_TP ((char *) tlsblock + bootstrap_map.l_tls_offset, 1)
+	    != 0)
 	  _dl_fatal_printf ("cannot setup thread-local storage\n");
 # elif TLS_DTV_AT_TP
 	INSTALL_DTV (tlsblock, initdtv);
-	if (TLS_INIT_TP (tlsblock) != 0)
+	if (TLS_INIT_TP (tlsblock, 1) != 0)
 	  _dl_fatal_printf ("cannot setup thread-local storage\n");
 # else
 #  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
@@ -1475,7 +1476,7 @@ cannot allocate TLS data structures for initial thread");
       _dl_allocate_tls_init (tcbp);
 
       /* And finally install it for the main thread.  */
-      TLS_INIT_TP (tcbp);
+      TLS_INIT_TP (tcbp, 0);
     }
 #endif
 
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 6b6195b7d2..93a71d74e6 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,5 +1,14 @@
 2002-08-20  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/i386/tls.h (TLS_INIT_TP): Add new parameter and pass it on
+	to TLS_SETUP_GS_SEGMENT.
+	(TLS_SETUP_GS_SEGMENT): Add new parameter and pass it on to
+	TLS_DO_SET_THREAD_AREA.
+	(TLS_DO_SET_THREAD_AREA): If new parameter is zero determine
+	entry number from %gs value.
+	* sysdeps/sh/tls.h (TLS_INIT_TP): Add new parameter and simply
+	ignore it.
+
 	* manager.c (pthread_handle_create): Pass NULL to _dl_allocate_tls.
 	Pass true to _dl_deallocate_tls.
 	(pthread_free): Likewise.
diff --git a/linuxthreads/sysdeps/i386/tls.h b/linuxthreads/sysdeps/i386/tls.h
index 5de8eca18d..098b11caa0 100644
--- a/linuxthreads/sysdeps/i386/tls.h
+++ b/linuxthreads/sysdeps/i386/tls.h
@@ -115,12 +115,16 @@ typedef struct
   __builtin_expect (result, 0) != 0 ? -1 : nr * 8 + 7;			      \
 })
 
-#  define TLS_DO_SET_THREAD_AREA(descr)					      \
+#  define TLS_DO_SET_THREAD_AREA(descr, firstcall)			      \
 ({									      \
   struct modify_ldt_ldt_s ldt_entry =					      \
     { -1, (unsigned long int) (descr), sizeof (struct _pthread_descr_struct), \
       1, 0, 0, 0, 0, 1, 0 };						      \
   int result;								      \
+  if (!firstcall)							      \
+    ldt_entry.entry_number = ({ int _gs;				      \
+				asm ("movw %%gs, %w0" : "=q" (_gs));	      \
+				(_gs & 0xffff) >> 3; });		      \
   asm volatile (TLS_LOAD_EBX						      \
 		"int $0x80\n\t"						      \
 		TLS_LOAD_EBX						      \
@@ -134,10 +138,11 @@ typedef struct
 })
 
 #  ifdef __ASSUME_SET_THREAD_AREA_SYSCALL
-#   define TLS_SETUP_GS_SEGMENT(descr) TLS_DO_SET_THREAD_AREA (descr)
+#   define TLS_SETUP_GS_SEGMENT(descr, firstcall) \
+  TLS_DO_SET_THREAD_AREA (descr, firstcall)
 #  elif defined __NR_set_thread_area
-#   define TLS_SETUP_GS_SEGMENT(descr) \
-  ({ int __seg = TLS_DO_SET_THREAD_AREA (descr); \
+#   define TLS_SETUP_GS_SEGMENT(descr, firstcall) \
+  ({ int __seg = TLS_DO_SET_THREAD_AREA (descr, firstcall); \
      __seg == -1 ? TLS_DO_MODIFY_LDT (descr, 0) : __seg; })
 #  else
 #   define TLS_SETUP_GS_SEGMENT(descr) TLS_DO_MODIFY_LDT ((descr), 0)
@@ -146,7 +151,7 @@ typedef struct
 /* 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.  */
-#  define TLS_INIT_TP(descr)						      \
+#  define TLS_INIT_TP(descr, firstcall)					      \
   ({									      \
     void *_descr = (descr);						      \
     tcbhead_t *head = _descr;						      \
@@ -156,7 +161,7 @@ typedef struct
     /* For now the thread descriptor is at the same address.  */	      \
     head->self = _descr;						      \
 									      \
-    __gs = TLS_SETUP_GS_SEGMENT (_descr);				      \
+    __gs = TLS_SETUP_GS_SEGMENT (_descr, firstcall);			      \
     if (__builtin_expect (__gs, 7) != -1)				      \
       {									      \
 	asm ("movw %w0, %%gs" : : "q" (__gs));				      \
diff --git a/linuxthreads/sysdeps/sh/tls.h b/linuxthreads/sysdeps/sh/tls.h
index 6deecc007e..dce57a8961 100644
--- a/linuxthreads/sysdeps/sh/tls.h
+++ b/linuxthreads/sysdeps/sh/tls.h
@@ -87,7 +87,7 @@ typedef struct
 /* 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.  */
-# define TLS_INIT_TP(descr) \
+# define TLS_INIT_TP(descr, firstcall) \
   ({									      \
     void *_descr = (descr);						      \
     int result;								      \
diff --git a/sysdeps/generic/libc-tls.c b/sysdeps/generic/libc-tls.c
index 51b85ef28f..88b0ccf8fc 100644
--- a/sysdeps/generic/libc-tls.c
+++ b/sysdeps/generic/libc-tls.c
@@ -137,10 +137,10 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
 
   INSTALL_DTV ((char *) tlsblock + tcb_offset, static_dtv);
 
-  TLS_INIT_TP ((char *) tlsblock + tcb_offset);
+  TLS_INIT_TP ((char *) tlsblock + tcb_offset, 1);
 # elif TLS_DTV_AT_TP
   INSTALL_DTV (tlsblock, static_dtv);
-  TLS_INIT_TP (tlsblock);
+  TLS_INIT_TP (tlsblock, 1);
 # else
 #  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
 # endif
diff --git a/sysdeps/generic/tls.h b/sysdeps/generic/tls.h
index 38f84acd46..6a23ec05e1 100644
--- a/sysdeps/generic/tls.h
+++ b/sysdeps/generic/tls.h
@@ -65,10 +65,12 @@
      use the value.
 
 
-     TLS_INIT_TP(tcb)
+     TLS_INIT_TP(tcb, firstcall)
 
      This macro must initialize the thread pointer to enable normal TLS
-     operation.  The parameter is a pointer to the thread control block.
+     operation.  The first parameter is a pointer to the thread control
+     block.  The second parameter specifies whether this is the first
+     call for the TCB.  ld.so calls this macro more than once.
 
 
      THREAD_DTV()
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-12-11 20:54:19 +0000