2006-03-04 Jakub Jelinek <jakub@redhat.com>

            Roland McGrath  <roland@redhat.com>

	* sysdeps/unix/sysv/linux/i386/lowlevellock.h
	(LLL_STUB_UNWIND_INFO_START, LLL_STUB_UNWIND_INFO_END,
	LLL_STUB_UNWIND_INFO_3, LLL_STUB_UNWIND_INFO_4): Define.
	(lll_mutex_lock, lll_robust_mutex_lock, lll_mutex_cond_lock,
	lll_robust_mutex_cond_lock, lll_mutex_timedlock,
	lll_robust_mutex_timedlock, lll_mutex_unlock,
	lll_robust_mutex_unlock, lll_lock, lll_unlock): Use them.
	Add _L_*_ symbols around the subsection.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Add unwind info.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S: Likewise.

2006-03-03  Jakub Jelinek  <jakub@redhat.com>
            Roland McGrath  <roland@redhat.com>

	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
	(LLL_STUB_UNWIND_INFO_START, LLL_STUB_UNWIND_INFO_END,
	LLL_STUB_UNWIND_INFO_5, LLL_STUB_UNWIND_INFO_6): Define.
	(lll_mutex_lock, lll_robust_mutex_lock, lll_mutex_cond_lock,
	lll_robust_mutex_cond_lock, lll_mutex_timedlock,
	lll_robust_mutex_timedlock, lll_mutex_unlock,
	lll_robust_mutex_unlock, lll_lock, lll_unlock): Use them.
	Add _L_*_ symbols around the subsection.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Add unwind info.
	* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Likewise.

1 files changed, 161 insertions, 75 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
index ac788ebe5a..21de09fe91 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -68,6 +68,82 @@
 #define BUSY_WAIT_NOP          asm ("rep; nop")
 
 
+#define LLL_STUB_UNWIND_INFO_START \
+	".section	.eh_frame,\"a\",@progbits\n"		\
+"5:\t"	".long	7f-6f	# Length of Common Information Entry\n"	\
+"6:\t"	".long	0x0	# CIE Identifier Tag\n\t"		\
+	".byte	0x1	# CIE Version\n\t"			\
+	".ascii \"zR\\0\"	# CIE Augmentation\n\t"		\
+	".uleb128 0x1	# CIE Code Alignment Factor\n\t"	\
+	".sleb128 -4	# CIE Data Alignment Factor\n\t"	\
+	".byte	0x8	# CIE RA Column\n\t"			\
+	".uleb128 0x1	# Augmentation size\n\t"		\
+	".byte	0x1b	# FDE Encoding (pcrel sdata4)\n\t"	\
+	".byte	0xc	# DW_CFA_def_cfa\n\t"			\
+	".uleb128 0x4\n\t"					\
+	".uleb128 0x0\n\t"					\
+	".align 4\n"						\
+"7:\t"	".long	17f-8f	# FDE Length\n"				\
+"8:\t"	".long	8b-5b	# FDE CIE offset\n\t"			\
+	".long	1b-.	# FDE initial location\n\t"		\
+	".long	4b-1b	# FDE address range\n\t"		\
+	".uleb128 0x0	# Augmentation size\n\t"		\
+	".byte	0x16	# DW_CFA_val_expression\n\t"		\
+	".uleb128 0x8\n\t"					\
+	".uleb128 10f-9f\n"					\
+"9:\t"	".byte	0x78	# DW_OP_breg8\n\t"			\
+	".sleb128 3b-1b\n"
+#define LLL_STUB_UNWIND_INFO_END \
+	".byte	0x16	# DW_CFA_val_expression\n\t"		\
+	".uleb128 0x8\n\t"					\
+	".uleb128 12f-11f\n"					\
+"11:\t"	".byte	0x78	# DW_OP_breg8\n\t"			\
+	".sleb128 3b-2b\n"					\
+"12:\t"	".byte	0x40 + (3b-2b-1) # DW_CFA_advance_loc\n\t"	\
+	".byte	0x16	# DW_CFA_val_expression\n\t"		\
+	".uleb128 0x8\n\t"					\
+	".uleb128 16f-13f\n"					\
+"13:\t"	".byte	0x78	# DW_OP_breg8\n\t"			\
+	".sleb128 15f-14f\n\t"					\
+	".byte	0x0d	# DW_OP_const4s\n"			\
+"14:\t"	".4byte	3b-.\n\t"					\
+	".byte	0x1c	# DW_OP_minus\n\t"			\
+	".byte	0x0d	# DW_OP_const4s\n"			\
+"15:\t"	".4byte	18f-.\n\t"					\
+	".byte	0x22	# DW_OP_plus\n"				\
+"16:\t"	".align 4\n"						\
+"17:\t"	".previous\n"
+
+/* Unwind info for
+   1: lea ..., ...
+   2: call ...
+   3: jmp 18f
+   4:
+   snippet.  */
+#define LLL_STUB_UNWIND_INFO_3 \
+LLL_STUB_UNWIND_INFO_START					\
+"10:\t"	".byte	0x40 + (2b-1b) # DW_CFA_advance_loc\n\t"	\
+LLL_STUB_UNWIND_INFO_END
+
+/* Unwind info for
+   1: lea ..., ...
+   0: movl ..., ...
+   2: call ...
+   3: jmp 18f
+   4:
+   snippet.  */
+#define LLL_STUB_UNWIND_INFO_4 \
+LLL_STUB_UNWIND_INFO_START					\
+"10:\t"	".byte	0x40 + (0b-1b) # DW_CFA_advance_loc\n\t"	\
+	".byte	0x16	# DW_CFA_val_expression\n\t"		\
+	".uleb128 0x8\n\t"					\
+	".uleb128 20f-19f\n"					\
+"19:\t"	".byte	0x78	# DW_OP_breg8\n\t"			\
+	".sleb128 3b-0b\n"					\
+"20:\t"	".byte	0x40 + (2b-0b) # DW_CFA_advance_loc\n\t"	\
+LLL_STUB_UNWIND_INFO_END
+
+
 #define lll_futex_wait(futex, val) \
   ({									      \
     int __status;							      \
@@ -168,13 +244,14 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 			      "jnz _L_mutex_lock_%=\n\t"		      \
 			      ".subsection 1\n\t"			      \
 			      ".type _L_mutex_lock_%=,@function\n"	      \
-			      "_L_mutex_lock_%=:\n\t"			      \
-			      "leal %2, %%ecx\n\t"			      \
-			      "call __lll_mutex_lock_wait\n\t"		      \
-			      "jmp 1f\n\t"				      \
-			      ".size _L_mutex_lock_%=,.-_L_mutex_lock_%=\n"   \
+			      "_L_mutex_lock_%=:\n"			      \
+			      "1:\tleal %2, %%ecx\n"			      \
+			      "2:\tcall __lll_mutex_lock_wait\n"	      \
+			      "3:\tjmp 18f\n"				      \
+			      "4:\t.size _L_mutex_lock_%=, 4b-1b\n\t"	      \
 			      ".previous\n"				      \
-			      "1:"					      \
+			      LLL_STUB_UNWIND_INFO_3			      \
+			      "18:"					      \
 			      : "=a" (ignore1), "=c" (ignore2), "=m" (futex)  \
 			      : "0" (0), "1" (1), "m" (futex)		      \
 			      : "memory"); })
@@ -183,16 +260,17 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_robust_mutex_lock(futex, id) \
   ({ int result, ignore;						      \
      __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t"			      \
-		       "jnz _L_mutex_lock_%=\n\t"			      \
+		       "jnz _L_robust_mutex_lock_%=\n\t"		      \
 		       ".subsection 1\n\t"				      \
-		       ".type _L_mutex_lock_%=,@function\n"		      \
-		       "_L_mutex_lock_%=:\n\t"				      \
-		       "leal %2, %%ecx\n\t"				      \
-		       "call __lll_robust_mutex_lock_wait\n\t"		      \
-		       "jmp 1f\n\t"					      \
-		       ".size _L_mutex_lock_%=,.-_L_mutex_lock_%=\n"	      \
+		       ".type _L_robust_mutex_lock_%=,@function\n"	      \
+		       "_L_robust_mutex_lock_%=:\n"			      \
+		       "1:\tleal %2, %%ecx\n"				      \
+		       "2:\tcall __lll_robust_mutex_lock_wait\n"	      \
+		       "3:\tjmp 18f\n"					      \
+		       "4:\t.size _L_robust_mutex_lock_%=, 4b-1b\n\t"	      \
 		       ".previous\n"					      \
-		       "1:"						      \
+		       LLL_STUB_UNWIND_INFO_3				      \
+		       "18:"						      \
 		       : "=a" (result), "=c" (ignore), "=m" (futex)	      \
 		       : "0" (0), "1" (id), "m" (futex)			      \
 		       : "memory");					      \
@@ -207,13 +285,14 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 			      "jnz _L_mutex_cond_lock_%=\n\t"		      \
 			      ".subsection 1\n\t"			      \
 			      ".type _L_mutex_cond_lock_%=,@function\n"	      \
-			      "_L_mutex_cond_lock_%=:\n\t"		      \
-			      "leal %2, %%ecx\n\t"			      \
-			      "call __lll_mutex_lock_wait\n\t"		      \
-			      "jmp 1f\n\t"				      \
-			      ".size _L_mutex_cond_lock_%=,.-_L_mutex_cond_lock_%=\n"   \
+			      "_L_mutex_cond_lock_%=:\n"		      \
+			      "1:\tleal %2, %%ecx\n"			      \
+			      "2:\tcall __lll_mutex_lock_wait\n"	      \
+			      "3:\tjmp 18f\n"				      \
+			      "4:\t.size _L_mutex_cond_lock_%=, 4b-1b\n\t"    \
 			      ".previous\n"				      \
-			      "1:"					      \
+			      LLL_STUB_UNWIND_INFO_3			      \
+			      "18:"					      \
 			      : "=a" (ignore1), "=c" (ignore2), "=m" (futex)  \
 			      : "0" (0), "1" (2), "m" (futex)		      \
 			      : "memory"); })
@@ -222,16 +301,17 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_robust_mutex_cond_lock(futex, id) \
   ({ int result, ignore;						      \
      __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t"			      \
-		       "jnz _L_mutex_cond_lock_%=\n\t"			      \
+		       "jnz _L_robust_mutex_cond_lock_%=\n\t"		      \
 		       ".subsection 1\n\t"				      \
-		       ".type _L_mutex_cond_lock_%=,@function\n"	      \
-		       "_L_mutex_cond_lock_%=:\n\t"			      \
-		       "leal %2, %%ecx\n\t"				      \
-		       "call __lll_robust_mutex_lock_wait\n\t"		      \
-		       "jmp 1f\n\t"					      \
-		       ".size _L_mutex_cond_lock_%=,.-_L_mutex_cond_lock_%=\n"\
+		       ".type _L_robust_mutex_cond_lock_%=,@function\n"	      \
+		       "_L_robust_mutex_cond_lock_%=:\n"		      \
+		       "1:\tleal %2, %%ecx\n"				      \
+		       "2:\tcall __lll_robust_mutex_lock_wait\n"	      \
+		       "3:\tjmp 18f\n"					      \
+		       "4:\t.size _L_robust_mutex_cond_lock_%=, 4b-1b\n\t"    \
 		       ".previous\n"					      \
-		       "1:"						      \
+		       LLL_STUB_UNWIND_INFO_3				      \
+		       "18:"						      \
 		       : "=a" (result), "=c" (ignore), "=m" (futex)	      \
 		       : "0" (0), "1" (id | FUTEX_WAITERS), "m" (futex)	      \
 		       : "memory");					      \
@@ -244,14 +324,15 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 		       "jnz _L_mutex_timedlock_%=\n\t"			      \
 		       ".subsection 1\n\t"				      \
 		       ".type _L_mutex_timedlock_%=,@function\n"	      \
-		       "_L_mutex_timedlock_%=:\n\t"			      \
-		       "leal %3, %%ecx\n\t"				      \
-		       "movl %7, %%edx\n\t"				      \
-		       "call __lll_mutex_timedlock_wait\n\t"		      \
-		       "jmp 1f\n\t"					      \
-		       ".size _L_mutex_timedlock_%=,.-_L_mutex_timedlock_%=\n"\
+		       "_L_mutex_timedlock_%=:\n"			      \
+		       "1:\tleal %3, %%ecx\n"				      \
+		       "0:\tmovl %7, %%edx\n"				      \
+		       "2:\tcall __lll_mutex_timedlock_wait\n"		      \
+		       "3:\tjmp 18f\n"					      \
+		       "4:\t.size _L_mutex_timedlock_%=, 4b-1b\n\t"	      \
 		       ".previous\n"					      \
-		       "1:"						      \
+		       LLL_STUB_UNWIND_INFO_4				      \
+		       "18:"						      \
 		       : "=a" (result), "=c" (ignore1), "=&d" (ignore2),      \
 			 "=m" (futex)					      \
 		       : "0" (0), "1" (1), "m" (futex), "m" (timeout)	      \
@@ -262,17 +343,18 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_robust_mutex_timedlock(futex, timeout, id) \
   ({ int result, ignore1, ignore2;					      \
      __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t"			      \
-		       "jnz _L_mutex_timedlock_%=\n\t"			      \
+		       "jnz _L_robust_mutex_timedlock_%=\n\t"		      \
 		       ".subsection 1\n\t"				      \
-		       ".type _L_mutex_timedlock_%=,@function\n"	      \
-		       "_L_mutex_timedlock_%=:\n\t"			      \
-		       "leal %3, %%ecx\n\t"				      \
-		       "movl %7, %%edx\n\t"				      \
-		       "call __lll_robust_mutex_timedlock_wait\n\t"	      \
-		       "jmp 1f\n\t"					      \
-		       ".size _L_mutex_timedlock_%=,.-_L_mutex_timedlock_%=\n"\
+		       ".type _L_robust_mutex_timedlock_%=,@function\n"	      \
+		       "_L_robust_mutex_timedlock_%=:\n"		      \
+		       "1:\tleal %3, %%ecx\n"				      \
+		       "0:\tmovl %7, %%edx\n"				      \
+		       "2:\tcall __lll_robust_mutex_timedlock_wait\n"	      \
+		       "3:\tjmp 18f\n"					      \
+		       "4:\t.size _L_robust_mutex_timedlock_%=, 4b-1b\n\t"    \
 		       ".previous\n"					      \
-		       "1:"						      \
+		       LLL_STUB_UNWIND_INFO_4				      \
+		       "18:"						      \
 		       : "=a" (result), "=c" (ignore1), "=&d" (ignore2),      \
 			 "=m" (futex)					      \
 		       : "0" (0), "1" (id), "m" (futex), "m" (timeout)	      \
@@ -286,13 +368,14 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 			      "jne _L_mutex_unlock_%=\n\t"		      \
 			      ".subsection 1\n\t"			      \
 			      ".type _L_mutex_unlock_%=,@function\n"	      \
-			      "_L_mutex_unlock_%=:\n\t"			      \
-			      "leal %0, %%eax\n\t"			      \
-			      "call __lll_mutex_unlock_wake\n\t"	      \
-			      "jmp 1f\n\t"				      \
-			      ".size _L_mutex_unlock_%=,.-_L_mutex_unlock_%=\n" \
+			      "_L_mutex_unlock_%=:\n"			      \
+			      "1:\tleal %0, %%eax\n"			      \
+			      "2:\tcall __lll_mutex_unlock_wake\n"	      \
+			      "3:\tjmp 18f\n"				      \
+			      "4:\t.size _L_mutex_unlock_%=, 4b-1b\n\t"	      \
 			      ".previous\n"				      \
-			      "1:"					      \
+			      LLL_STUB_UNWIND_INFO_3			      \
+			      "18:"					      \
 			      : "=m" (futex), "=&a" (ignore)		      \
 			      : "m" (futex)				      \
 			      : "memory"); })
@@ -301,16 +384,17 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_robust_mutex_unlock(futex) \
   (void) ({ int ignore;							      \
             __asm __volatile (LOCK_INSTR "andl %2, %0\n\t"		      \
-			      "jne _L_mutex_unlock_%=\n\t"		      \
+			      "jne _L_robust_mutex_unlock_%=\n\t"	      \
 			      ".subsection 1\n\t"			      \
-			      ".type _L_mutex_unlock_%=,@function\n"	      \
-			      "_L_mutex_unlock_%=:\n\t"			      \
-			      "leal %0, %%eax\n\t"			      \
-			      "call __lll_mutex_unlock_wake\n\t"	      \
-			      "jmp 1f\n\t"				      \
-			      ".size _L_mutex_unlock_%=,.-_L_mutex_unlock_%=\n" \
+			      ".type _L_robust_mutex_unlock_%=,@function\n"   \
+			      "_L_robust_mutex_unlock_%=:\n\t"		      \
+			      "1:\tleal %0, %%eax\n"			      \
+			      "2:\tcall __lll_mutex_unlock_wake\n"	      \
+			      "3:\tjmp 18f\n"				      \
+			      "4:\t.size _L_robust_mutex_unlock_%=, 4b-1b\n\t"\
 			      ".previous\n"				      \
-			      "1:"					      \
+			      LLL_STUB_UNWIND_INFO_3			      \
+			      "18:"					      \
 			      : "=m" (futex), "=&a" (ignore)		      \
 			      : "i" (FUTEX_WAITERS), "m" (futex)	      \
 			      : "memory"); })
@@ -404,16 +488,17 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 			      "je 0f\n\t"				      \
 			      "lock\n"					      \
 			      "0:\tcmpxchgl %1, %2\n\t"			      \
-			      "jnz _L_mutex_lock_%=\n\t"		      \
+			      "jnz _L_lock_%=\n\t"			      \
 			      ".subsection 1\n\t"			      \
-			      ".type _L_mutex_lock_%=,@function\n"	      \
-			      "_L_mutex_lock_%=:\n\t"			      \
-			      "leal %2, %%ecx\n\t"			      \
-			      "call __lll_mutex_lock_wait\n\t"		      \
-			      "jmp 1f\n\t"				      \
-			      ".size _L_mutex_lock_%=,.-_L_mutex_lock_%=\n"   \
+			      ".type _L_lock_%=,@function\n"		      \
+			      "_L_lock_%=:\n"				      \
+			      "1:\tleal %2, %%ecx\n"			      \
+			      "2:\tcall __lll_mutex_lock_wait\n"	      \
+			      "3:\tjmp 18f\n"				      \
+			      "4:\t.size _L_lock_%=, 4b-1b\n\t"		      \
 			      ".previous\n"				      \
-			      "1:"					      \
+			      LLL_STUB_UNWIND_INFO_3			      \
+			      "18:"					      \
 			      : "=a" (ignore1), "=c" (ignore2), "=m" (futex)  \
 			      : "0" (0), "1" (1), "m" (futex),		      \
 		                "i" (offsetof (tcbhead_t, multiple_threads))  \
@@ -425,17 +510,18 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
             __asm __volatile ("cmpl $0, %%gs:%P3\n\t"			      \
 			      "je 0f\n\t"				      \
 			      "lock\n"					      \
-			      "0:\tsubl $1,%0\n\t"		      \
-			      "jne _L_mutex_unlock_%=\n\t"		      \
+			      "0:\tsubl $1,%0\n\t"			      \
+			      "jne _L_unlock_%=\n\t"			      \
 			      ".subsection 1\n\t"			      \
-			      ".type _L_mutex_unlock_%=,@function\n"	      \
-			      "_L_mutex_unlock_%=:\n\t"			      \
-			      "leal %0, %%eax\n\t"			      \
-			      "call __lll_mutex_unlock_wake\n\t"	      \
-			      "jmp 1f\n\t"				      \
-			      ".size _L_mutex_unlock_%=,.-_L_mutex_unlock_%=\n" \
+			      ".type _L_unlock_%=,@function\n"		      \
+			      "_L_unlock_%=:\n"				      \
+			      "1:\tleal %0, %%eax\n"			      \
+			      "2:\tcall __lll_mutex_unlock_wake\n"	      \
+			      "3:\tjmp 18f\n\t"				      \
+			      "4:\t.size _L_unlock_%=, 4b-1b\n\t"	      \
 			      ".previous\n"				      \
-			      "1:"					      \
+			      LLL_STUB_UNWIND_INFO_3			      \
+			      "18:"					      \
 			      : "=m" (futex), "=&a" (ignore)		      \
 			      : "m" (futex),				      \
 				"i" (offsetof (tcbhead_t, multiple_threads))  \