From 98f7320f0780d3238f8196c6f03c0cf256e7d6fb Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 23 Mar 2003 19:42:23 +0000
Subject: [PATCH] Define PSEUDO_NOERRNO, PSEUDO_END_NOERRNO, and ret_NOERRNO.

---
 sysdeps/unix/alpha/sysdep.h           | 19 +++++++++++++++++--
 sysdeps/unix/sysv/linux/arm/sysdep.h  | 16 ++++++++++++++++
 sysdeps/unix/sysv/linux/cris/sysdep.h | 14 +++++++++++++-
 sysdeps/unix/sysv/linux/hppa/sysdep.h | 15 ++++++++++++++-
 sysdeps/unix/sysv/linux/m68k/sysdep.h | 10 ++++++++++
 5 files changed, 70 insertions(+), 4 deletions(-)

diff --git a/sysdeps/unix/alpha/sysdep.h b/sysdeps/unix/alpha/sysdep.h
index cb04cec2af5..6e550615158 100644
--- a/sysdeps/unix/alpha/sysdep.h
+++ b/sysdeps/unix/alpha/sysdep.h
@@ -119,6 +119,21 @@ $syscall_error:					\
 	END(sym)
 #endif
 
+#define PSEUDO_NOERRNO(name, syscall_name, args)	\
+	.globl name;					\
+	.align 4;					\
+	.ent name,0;					\
+__LABEL(name)						\
+	PSEUDO_PROLOGUE;				\
+	PSEUDO_PREPARE_ARGS				\
+	lda	v0, SYS_ify(syscall_name);		\
+	call_pal PAL_callsys;
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(sym)  END(sym)
+
+#define ret_NOERRNO ret
+
 #define r0	v0
 #define r1	a4
 
@@ -167,8 +182,8 @@ $syscall_error:					\
 /* If TLS is in use, we have a conflict between the PAL_rduniq primitive,
    as modeled within GCC, and explicit use of the R0 register.  If we use
    the register via the asm, the scheduler may place the PAL_rduniq insn
-   before we've copied the data from R0 into _sc_ret.  If this happens 
-   we'll get a reload abort, since R0 is live at the same time it is 
+   before we've copied the data from R0 into _sc_ret.  If this happens
+   we'll get a reload abort, since R0 is live at the same time it is
    needed for the PAL_rduniq.
 
    Solve this by using the "v" constraint instead of an asm for the syscall
diff --git a/sysdeps/unix/sysv/linux/arm/sysdep.h b/sysdeps/unix/sysv/linux/arm/sysdep.h
index 785d3cf0d87..3e3c874e043 100644
--- a/sysdeps/unix/sysv/linux/arm/sysdep.h
+++ b/sysdeps/unix/sysv/linux/arm/sysdep.h
@@ -64,6 +64,22 @@
   SYSCALL_ERROR_HANDLER							      \
   END (name)
 
+#undef	PSEUDO_NOERRNO
+#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
+  .text;								      \
+  ENTRY (name);								      \
+    DO_CALL (syscall_name, args);
+
+#define PSEUDO_RET_NOERRNO						      \
+    RETINSTR(movcc, pc, lr);						      \
+    nop
+#undef ret_NOERRNO
+#define ret_NOERRNO PSEUDO_RET_NOERRNO
+
+#undef	PSEUDO_END_NOERRNO
+#define	PSEUDO_END_NOERRNO(name)					      \
+  END (name)
+
 #if NOT_IN_libc
 # define SYSCALL_ERROR __local_syscall_error
 # define SYSCALL_ERROR_HANDLER					\
diff --git a/sysdeps/unix/sysv/linux/cris/sysdep.h b/sysdeps/unix/sysv/linux/cris/sysdep.h
index 4446b26f50f..f22a3d24e8c 100644
--- a/sysdeps/unix/sysv/linux/cris/sysdep.h
+++ b/sysdeps/unix/sysv/linux/cris/sysdep.h
@@ -1,5 +1,5 @@
 /* Assembler macros for CRIS.
-   Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2001, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -106,6 +106,18 @@
   PLTJUMP (syscall_error)				@ \
   END (name)
 
+#define	PSEUDO_NOERRNO(name, syscall_name, args) \
+  ENTRY	(name)						@ \
+  DOARGS_##args						@ \
+  movu.w SYS_ify (syscall_name),$r9			@ \
+  break	13						@ \
+  UNDOARGS_return_##args
+
+#define ret_NOERRNO
+
+#define	PSEUDO_END_NOERRNO(name) \
+  END (name)
+
 #define DOARGS_0
 #define DOARGS_1
 #define DOARGS_2
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index 4f08cc6e395..771c55c400f 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -1,5 +1,5 @@
 /* Assembler macros for PA-RISC.
-   Copyright (C) 1999,2001,02 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper, <drepper@cygnus.com>, August 1999.
    Linux/PA-RISC changes by Philipp Rumpf, <prumpf@tux.org>, March 2000.
@@ -84,6 +84,10 @@
 	bv 0(2)					ASM_LINE_SEP	\
 	nop
 
+#define ret_NOERRNO \
+	bv 0(2)					ASM_LINE_SEP	\
+	nop
+
 #undef	END
 #define END(name)						\
 1:	.size	C_SYMBOL_NAME(name),1b-C_SYMBOL_NAME(name)
@@ -115,6 +119,15 @@
 #define	PSEUDO_END(name)						      \
   END (name)
 
+#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
+  ENTRY (name)								      \
+  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
+  nop
+
+#undef	PSEUDO_END_NOERRNO
+#define	PSEUDO_END_NOERRNO(name)					      \
+  END (name)
+
 #define JUMPTARGET(name)	name
 #define SYSCALL_PIC_SETUP	/* Nothing.  */
 
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index 125c584eb48..23e4202e8b9 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -68,6 +68,16 @@
   SYSCALL_ERROR_HANDLER;						      \
   END (name)
 
+#undef PSEUDO_NOERRNO
+#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
+  .text;								      \
+  ENTRY (name)								      \
+    DO_CALL (syscall_name, args)
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(name)					      \
+  END (name)
+
 #ifdef PIC
 # if RTLD_PRIVATE_ERRNO
 #  define SYSCALL_ERROR_HANDLER						      \
-- 
2.47.2