about summary refs log tree commit diff
path: root/linuxthreads
diff options
context:
space:
mode:
Diffstat (limited to 'linuxthreads')
-rw-r--r--linuxthreads/ChangeLog14
-rw-r--r--linuxthreads/internals.h6
-rw-r--r--linuxthreads/specific.c28
-rw-r--r--linuxthreads/sysdeps/i386/useldt.h50
-rw-r--r--linuxthreads/sysdeps/sparc/sparc32/pt-machine.h2
-rw-r--r--linuxthreads/sysdeps/sparc/sparc64/pt-machine.h2
6 files changed, 86 insertions, 16 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 00f52d6413..b8cad4cbbf 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,17 @@
+1998-08-28 13:58  Ulrich Drepper  <drepper@cygnus.com>
+
+	* internals.h: Also define THREAD_GETMEM_NC and THREAD_SETMEM_NC to
+	access thread data with non-constant offsets.
+	* specific.c: Use THREAD_GETMEM_NC and THREAD_SETMEM_NC where
+	necessary.
+
+	* sysdeps/i386/useldt.h: Fix typo.  Add THREAD_GETMEM_NC and
+	THREAD_SETMEM_NC definitions.
+
+	* sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM_NC and
+	THREAD_SETMEM_NC.
+	* sysdeps/sparc/sparc64/pt-machine.h: Likewise.
+
 1998-08-26 15:46  Ulrich Drepper  <drepper@cygnus.com>
 
 	* internals.h: Define THREAD_GETMEM and THREAD_SETMEM to default if
diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h
index d418fe2211..d11cf8471a 100644
--- a/linuxthreads/internals.h
+++ b/linuxthreads/internals.h
@@ -28,9 +28,15 @@
 #ifndef THREAD_GETMEM
 # define THREAD_GETMEM(descr, member) descr->member
 #endif
+#ifndef THREAD_GETMEM_NC
+# define THREAD_GETMEM_NC(descr, member) descr->member
+#endif
 #ifndef THREAD_SETMEM
 # define THREAD_SETMEM(descr, member, value) descr->member = (value)
 #endif
+#ifndef THREAD_SETMEM_NC
+# define THREAD_SETMEM_NC(descr, member, value) descr->member = (value)
+#endif
 
 /* Arguments passed to thread creation routine */
 
diff --git a/linuxthreads/specific.c b/linuxthreads/specific.c
index 4ebbad7f5f..2df477a92c 100644
--- a/linuxthreads/specific.c
+++ b/linuxthreads/specific.c
@@ -99,13 +99,13 @@ int __pthread_setspecific(pthread_key_t key, const void * pointer)
     return EINVAL;
   idx1st = key / PTHREAD_KEY_2NDLEVEL_SIZE;
   idx2nd = key % PTHREAD_KEY_2NDLEVEL_SIZE;
-  if (THREAD_GETMEM(self, p_specific[idx1st]) == NULL) {
-    THREAD_SETMEM(self, p_specific[idx1st],
-		  calloc(PTHREAD_KEY_2NDLEVEL_SIZE, sizeof (void *)));
-    if (THREAD_GETMEM(self, p_specific[idx1st]) == NULL)
+  if (THREAD_GETMEM_NC(self, p_specific[idx1st]) == NULL) {
+    void *newp = calloc(PTHREAD_KEY_2NDLEVEL_SIZE, sizeof (void *));
+    if (newp == NULL)
       return ENOMEM;
+    THREAD_SETMEM_NC(self, p_specific[idx1st], newp);
   }
-  THREAD_GETMEM(self, p_specific[idx1st])[idx2nd] = (void *) pointer;
+  THREAD_GETMEM_NC(self, p_specific[idx1st])[idx2nd] = (void *) pointer;
   return 0;
 }
 weak_alias (__pthread_setspecific, pthread_setspecific)
@@ -121,10 +121,10 @@ void * __pthread_getspecific(pthread_key_t key)
     return NULL;
   idx1st = key / PTHREAD_KEY_2NDLEVEL_SIZE;
   idx2nd = key % PTHREAD_KEY_2NDLEVEL_SIZE;
-  if (THREAD_GETMEM(self, p_specific[idx1st]) == NULL
+  if (THREAD_GETMEM_NC(self, p_specific[idx1st]) == NULL
       || !pthread_keys[key].in_use)
     return NULL;
-  return THREAD_GETMEM(self, p_specific[idx1st])[idx2nd];
+  return THREAD_GETMEM_NC(self, p_specific[idx1st])[idx2nd];
 }
 weak_alias (__pthread_getspecific, pthread_getspecific)
 
@@ -142,20 +142,20 @@ void __pthread_destroy_specifics()
        round++) {
     found_nonzero = 0;
     for (i = 0; i < PTHREAD_KEY_1STLEVEL_SIZE; i++)
-      if (THREAD_GETMEM(self, p_specific[i]) != NULL)
+      if (THREAD_GETMEM_NC(self, p_specific[i]) != NULL)
         for (j = 0; j < PTHREAD_KEY_2NDLEVEL_SIZE; j++) {
           destr = pthread_keys[i * PTHREAD_KEY_2NDLEVEL_SIZE + j].destr;
-          data = THREAD_GETMEM(self, p_specific[i])[j];
+          data = THREAD_GETMEM_NC(self, p_specific[i])[j];
           if (destr != NULL && data != NULL) {
-            THREAD_GETMEM(self, p_specific[i])[j] = NULL;
+            THREAD_GETMEM_NC(self, p_specific[i])[j] = NULL;
             destr(data);
             found_nonzero = 1;
           }
         }
   }
   for (i = 0; i < PTHREAD_KEY_1STLEVEL_SIZE; i++) {
-    if (THREAD_GETMEM(self, p_specific[i]) != NULL)
-      free(THREAD_GETMEM(self, p_specific[i]));
+    if (THREAD_GETMEM_NC(self, p_specific[i]) != NULL)
+      free(THREAD_GETMEM_NC(self, p_specific[i]));
   }
 }
 
@@ -165,7 +165,7 @@ int __libc_internal_tsd_set(enum __libc_tsd_key_t key, const void * pointer)
 {
   pthread_descr self = thread_self();
 
-  THREAD_SETMEM(self, p_libc_specific[key], (void *) pointer);
+  THREAD_SETMEM_NC(self, p_libc_specific[key], (void *) pointer);
   return 0;
 }
 
@@ -173,5 +173,5 @@ void * __libc_internal_tsd_get(enum __libc_tsd_key_t key)
 {
   pthread_descr self = thread_self();
 
-  return THREAD_GETMEM(self, p_libc_specific[key]);
+  return THREAD_GETMEM_NC(self, p_libc_specific[key]);
 }
diff --git a/linuxthreads/sysdeps/i386/useldt.h b/linuxthreads/sysdeps/i386/useldt.h
index 53cf522951..1a789e2e0a 100644
--- a/linuxthreads/sysdeps/i386/useldt.h
+++ b/linuxthreads/sysdeps/i386/useldt.h
@@ -82,7 +82,7 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
 ({									      \
   __typeof__ (descr->member) __value;					      \
   if (sizeof (__value) == 1)						      \
-    __asm__ __volatile__ ("movb %%gs:%P1,%b0"				      \
+    __asm__ __volatile__ ("movb %%gs:%P2,%b0"				      \
 			  : "=r" (__value)				      \
 			  : "0" (0),					      \
 			    "i" (offsetof (struct _pthread_descr_struct,      \
@@ -101,7 +101,31 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
   __value;								      \
 })
 
-/* Set member of the thread descriptor directly.  */
+/* Same as THREAD_GETMEM, but the member offset can be non-constant.  */
+#define THREAD_GETMEM_NC(descr, member) \
+({									      \
+  __typeof__ (descr->member) __value;					      \
+  if (sizeof (__value) == 1)						      \
+    __asm__ __volatile__ ("movb %%gs:(%2),%b0"				      \
+			  : "=r" (__value)				      \
+			  : "0" (0),					      \
+			    "r" (offsetof (struct _pthread_descr_struct,      \
+					   member)));			      \
+  else									      \
+    {									      \
+      if (sizeof (__value) != 4)					      \
+	/* There should not be any value with a size other than 1 or 4.  */   \
+	abort ();							      \
+									      \
+      __asm__ __volatile__ ("movl %%gs:(%1),%0"				      \
+			    : "=r" (__value)				      \
+			    : "r" (offsetof (struct _pthread_descr_struct,    \
+					     member)));			      \
+    }									      \
+  __value;								      \
+})
+
+/* Same as THREAD_SETMEM, but the member offset can be non-constant.  */
 #define THREAD_SETMEM(descr, member, value) \
 ({									      \
   __typeof__ (descr->member) __value = (value);				      \
@@ -122,3 +146,25 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
 					     member)));			      \
     }									      \
 })
+
+/* Set member of the thread descriptor directly.  */
+#define THREAD_SETMEM_NC(descr, member, value) \
+({									      \
+  __typeof__ (descr->member) __value = (value);				      \
+  if (sizeof (__value) == 1)						      \
+    __asm__ __volatile__ ("movb %0,%%gs:(%1)" :				      \
+			  : "r" (__value),				      \
+			    "r" (offsetof (struct _pthread_descr_struct,      \
+					   member)));			      \
+  else									      \
+    {									      \
+      if (sizeof (__value) != 4)					      \
+	/* There should not be any value with a size other than 1 or 4.  */   \
+	abort ();							      \
+									      \
+      __asm__ __volatile__ ("movl %0,%%gs:(%1)" :			      \
+			    : "r" (__value),				      \
+			      "r" (offsetof (struct _pthread_descr_struct,    \
+					     member)));			      \
+    }									      \
+})
diff --git a/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
index 7eea8d400c..894972d574 100644
--- a/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
+++ b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
@@ -56,4 +56,6 @@ register struct _pthread_descr_struct *__thread_self __asm__("%g6");
 
 /* Access to data in the thread descriptor is easy.  */
 #define THREAD_GETMEM(descr, member) __thread_self->member
+#define THREAD_GETMEM_NC(descr, member) __thread_self->member
 #define THREAD_SETMEM(descr, member, value) __thread_self->member = (value)
+#define THREAD_SETMEM_NC(descr, member, value) __thread_self->member = (value)
diff --git a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
index e94e1a5fb2..24c214117c 100644
--- a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
+++ b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
@@ -68,4 +68,6 @@ __compare_and_swap (long int *p, long int oldval, long int newval)
 
 /* Access to data in the thread descriptor is easy.  */
 #define THREAD_GETMEM(descr, member) __thread_self->member
+#define THREAD_GETMEM_NC(descr, member) __thread_self->member
 #define THREAD_SETMEM(descr, member, value) __thread_self->member = (value)
+#define THREAD_SETMEM_NC(descr, member, value) __thread_self->member = (value)
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-12-01 10:06:20 +0000