Index: uspace/lib/libc/arch/amd64/Makefile.inc
===================================================================
--- uspace/lib/libc/arch/amd64/Makefile.inc	(revision 00acd66d3981789b3f8b04cdd854d29343dd9aa0)
+++ uspace/lib/libc/arch/amd64/Makefile.inc	(revision f2f03920b9cbe70ec1fa65df9ff172eba44647a4)
@@ -34,5 +34,5 @@
 
 ARCH_SOURCES += arch/$(ARCH)/src/syscall.S \
-		arch/$(ARCH)/src/psthread.S \
+		arch/$(ARCH)/src/fibril.S \
 		arch/$(ARCH)/src/thread.c
 
Index: uspace/lib/libc/arch/amd64/include/fibril.h
===================================================================
--- uspace/lib/libc/arch/amd64/include/fibril.h	(revision f2f03920b9cbe70ec1fa65df9ff172eba44647a4)
+++ uspace/lib/libc/arch/amd64/include/fibril.h	(revision f2f03920b9cbe70ec1fa65df9ff172eba44647a4)
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2006 Ondrej Palkovsky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libcamd64
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_amd64_FIBRIL_H_
+#define LIBC_amd64_FIBRIL_H_
+
+#include <types.h>
+
+/* According to ABI the stack MUST be aligned on 
+ * 16-byte boundary. If it is not, the va_arg calling will
+ * panic sooner or later
+ */
+#define SP_DELTA     16
+
+/* We include only registers that must be preserved
+ * during function call
+ */
+typedef struct {
+    uint64_t sp;
+    uint64_t pc;
+    
+    uint64_t rbx;
+    uint64_t rbp;
+
+    uint64_t r12;
+    uint64_t r13;
+    uint64_t r14;
+    uint64_t r15;
+
+    uint64_t tls;
+} context_t;
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/libc/arch/amd64/include/psthread.h
===================================================================
--- uspace/lib/libc/arch/amd64/include/psthread.h	(revision 00acd66d3981789b3f8b04cdd854d29343dd9aa0)
+++ 	(revision )
@@ -1,67 +1,0 @@
-/*
- * Copyright (c) 2006 Ondrej Palkovsky
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * - The name of the author may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/** @addtogroup libcamd64
- * @{
- */
-/** @file
- */
-
-#ifndef LIBC_amd64_PSTHREAD_H_
-#define LIBC_amd64_PSTHREAD_H_
-
-#include <types.h>
-
-/* According to ABI the stack MUST be aligned on 
- * 16-byte boundary. If it is not, the va_arg calling will
- * panic sooner or later
- */
-#define SP_DELTA     16
-
-/* We include only registers that must be preserved
- * during function call
- */
-typedef struct {
-    uint64_t sp;
-    uint64_t pc;
-    
-    uint64_t rbx;
-    uint64_t rbp;
-
-    uint64_t r12;
-    uint64_t r13;
-    uint64_t r14;
-    uint64_t r15;
-
-    uint64_t tls;
-} context_t;
-
-#endif
-
-/** @}
- */
Index: uspace/lib/libc/arch/amd64/include/thread.h
===================================================================
--- uspace/lib/libc/arch/amd64/include/thread.h	(revision 00acd66d3981789b3f8b04cdd854d29343dd9aa0)
+++ uspace/lib/libc/arch/amd64/include/thread.h	(revision f2f03920b9cbe70ec1fa65df9ff172eba44647a4)
@@ -40,5 +40,5 @@
 typedef struct {
 	void *self;
-	void *pst_data;
+	void *fibril_data;
 } tcb_t;
 
Index: uspace/lib/libc/arch/amd64/src/fibril.S
===================================================================
--- uspace/lib/libc/arch/amd64/src/fibril.S	(revision f2f03920b9cbe70ec1fa65df9ff172eba44647a4)
+++ uspace/lib/libc/arch/amd64/src/fibril.S	(revision f2f03920b9cbe70ec1fa65df9ff172eba44647a4)
@@ -0,0 +1,87 @@
+#
+# Copyright (c) 2001-2004 Jakub Jermar
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+.text
+
+.global context_save
+.global context_restore
+
+#include <libarch/context_offset.h>
+
+## Save current CPU context
+#
+# Save CPU context to context_t variable
+# pointed by the 1st argument. Returns 1 in EAX.
+#
+context_save:
+	movq (%rsp), %rdx     # the caller's return %eip
+	# In %edi is passed 1st argument
+	movq %rdx, OFFSET_PC(%rdi)
+	movq %rsp, OFFSET_SP(%rdi)
+	
+	movq %rbx, OFFSET_RBX(%rdi)
+	movq %rbp, OFFSET_RBP(%rdi)
+	movq %r12, OFFSET_R12(%rdi)
+	movq %r13, OFFSET_R13(%rdi)
+	movq %r14, OFFSET_R14(%rdi)
+	movq %r15, OFFSET_R15(%rdi)
+
+	# Save TLS
+	movq %fs:0, %rax
+	movq %rax, OFFSET_TLS(%rdi)
+		
+	xorq %rax,%rax		# context_save returns 1
+	incq %rax
+	ret
+
+
+## Restore current CPU context
+#
+# Restore CPU context from context_t variable
+# pointed by the 1st argument. Returns 0 in EAX.
+#
+context_restore:
+	movq OFFSET_R15(%rdi), %r15
+	movq OFFSET_R14(%rdi), %r14
+	movq OFFSET_R13(%rdi), %r13
+	movq OFFSET_R12(%rdi), %r12
+	movq OFFSET_RBP(%rdi), %rbp
+	movq OFFSET_RBX(%rdi), %rbx	
+	
+	movq OFFSET_SP(%rdi), %rsp   # ctx->sp -> %rsp
+	
+	movq OFFSET_PC(%rdi), %rdx
+	movq %rdx,(%rsp)
+
+	# Set thread local storage
+	movq OFFSET_TLS(%rdi), %rdi   # Set arg1 to TLS addr
+	movq $1, %r8
+	syscall
+
+	xorq %rax,%rax		# context_restore returns 0
+	ret
Index: uspace/lib/libc/arch/amd64/src/psthread.S
===================================================================
--- uspace/lib/libc/arch/amd64/src/psthread.S	(revision 00acd66d3981789b3f8b04cdd854d29343dd9aa0)
+++ 	(revision )
@@ -1,87 +1,0 @@
-#
-# Copyright (c) 2001-2004 Jakub Jermar
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-#   notice, this list of conditions and the following disclaimer.
-# - Redistributions in binary form must reproduce the above copyright
-#   notice, this list of conditions and the following disclaimer in the
-#   documentation and/or other materials provided with the distribution.
-# - The name of the author may not be used to endorse or promote products
-#   derived from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-
-.text
-
-.global context_save
-.global context_restore
-
-#include <libarch/context_offset.h>
-
-## Save current CPU context
-#
-# Save CPU context to context_t variable
-# pointed by the 1st argument. Returns 1 in EAX.
-#
-context_save:
-	movq (%rsp), %rdx     # the caller's return %eip
-	# In %edi is passed 1st argument
-	movq %rdx, OFFSET_PC(%rdi)
-	movq %rsp, OFFSET_SP(%rdi)
-	
-	movq %rbx, OFFSET_RBX(%rdi)
-	movq %rbp, OFFSET_RBP(%rdi)
-	movq %r12, OFFSET_R12(%rdi)
-	movq %r13, OFFSET_R13(%rdi)
-	movq %r14, OFFSET_R14(%rdi)
-	movq %r15, OFFSET_R15(%rdi)
-
-	# Save TLS
-	movq %fs:0, %rax
-	movq %rax, OFFSET_TLS(%rdi)
-		
-	xorq %rax,%rax		# context_save returns 1
-	incq %rax
-	ret
-
-
-## Restore current CPU context
-#
-# Restore CPU context from context_t variable
-# pointed by the 1st argument. Returns 0 in EAX.
-#
-context_restore:
-	movq OFFSET_R15(%rdi), %r15
-	movq OFFSET_R14(%rdi), %r14
-	movq OFFSET_R13(%rdi), %r13
-	movq OFFSET_R12(%rdi), %r12
-	movq OFFSET_RBP(%rdi), %rbp
-	movq OFFSET_RBX(%rdi), %rbx	
-	
-	movq OFFSET_SP(%rdi), %rsp   # ctx->sp -> %rsp
-	
-	movq OFFSET_PC(%rdi), %rdx
-	movq %rdx,(%rsp)
-
-	# Set thread local storage
-	movq OFFSET_TLS(%rdi), %rdi   # Set arg1 to TLS addr
-	movq $1, %r8
-	syscall
-
-	xorq %rax,%rax		# context_restore returns 0
-	ret
