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authorUlrich Drepper <drepper@redhat.com>2006-01-21 08:21:04 +0000
committerUlrich Drepper <drepper@redhat.com>2006-01-21 08:21:04 +0000
commit5c983cdd089ef485b6f903efcf9e597eb1cb37ab (patch)
tree9006a5251d9cbab218850bd9939b0c6e417444da /sysdeps/unix/sysv/linux/i386
parente6c8af451f8ccdbd28ea6e8419eedb5551ba4c48 (diff)
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* sysdeps/unix/sysv/linux/pselect.c (__pselect): Allow actual
	system call code to be redefined in macro CALL_PSELECT6.
	* sysdeps/unix/sysv/linux/i386/Makefile [subdir=misc]
	(sysdep_routines): Add call_pselect6.
	* sysdeps/unix/sysv/linux/i386/call_pselect6.c: New file.
	* sysdeps/unix/sysv/linux/i386/pselect.c: New file.
	* misc/Makefile (tests): Add tst-pselect.
	* misc/tst-pselect.c: New file.

	* sysdeps/unix/sysv/linux/pselect.c: Fix typo in declaration.

	* sysdeps/unix/sysv/linux/xmknodat.c (__xmknodat): Cast k_dev
	value to unsigned int to match kernel.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
-rw-r--r--sysdeps/unix/sysv/linux/i386/Makefile2
-rw-r--r--sysdeps/unix/sysv/linux/i386/call_pselect6.S65
-rw-r--r--sysdeps/unix/sysv/linux/i386/pselect.c18
3 files changed, 84 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
index 7db3e3eeac..9e84975635 100644
--- a/sysdeps/unix/sysv/linux/i386/Makefile
+++ b/sysdeps/unix/sysv/linux/i386/Makefile
@@ -1,5 +1,5 @@
 ifeq ($(subdir),misc)
-sysdep_routines += ioperm iopl vm86
+sysdep_routines += ioperm iopl vm86 call_pselect6
 sysdep_headers += sys/elf.h sys/perm.h sys/reg.h sys/vm86.h sys/debugreg.h sys/io.h
 endif
 
diff --git a/sysdeps/unix/sysv/linux/i386/call_pselect6.S b/sysdeps/unix/sysv/linux/i386/call_pselect6.S
new file mode 100644
index 0000000000..a356f1dfa9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/call_pselect6.S
@@ -0,0 +1,65 @@
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+#ifdef __NR_pselect6
+	.text
+ENTRY(__call_pselect6)
+	.hidden __call_pselect6
+	pushl	%ebx
+	cfi_adjust_cfa_offset (4)
+	pushl	%esi
+	cfi_adjust_cfa_offset (4)
+	pushl	%edi
+	cfi_adjust_cfa_offset (4)
+	pushl	%ebp
+	cfi_adjust_cfa_offset (4)
+	cfi_rel_offset (ebp, 0)
+	cfi_rel_offset (edi, 4)
+	cfi_rel_offset (esi, 8)
+	cfi_rel_offset (ebx, 12)
+
+	movl	$__NR_pselect6, %eax
+	movl	20(%esp), %ebx
+	movl	24(%esp), %ecx
+	movl	28(%esp), %edx
+	movl	32(%esp), %esi
+	movl	36(%esp), %edi
+	movl	40(%esp), %ebp
+
+	/* The syscall handling cannot handle 6 parameters.  Yet.  */
+	int	$0x80
+
+	popl	%ebp
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebp)
+	popl	%edi
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (edi)
+	popl	%esi
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (esi)
+	popl	%ebx
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebx)
+
+	ret
+END(__call_pselect6)
+#endif
diff --git a/sysdeps/unix/sysv/linux/i386/pselect.c b/sysdeps/unix/sysv/linux/i386/pselect.c
new file mode 100644
index 0000000000..2646608786
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/pselect.c
@@ -0,0 +1,18 @@
+#include <sys/select.h>
+
+extern int __call_pselect6 (int nfds, fd_set *readfds, fd_set *writefds,
+			    fd_set *exceptfds, const struct timespec *timeout,
+			    void *data) attribute_hidden;
+
+
+#define CALL_PSELECT6(nfds, readfds, writefds, exceptfds, timeout, data) \
+  ({ int r = __call_pselect6 (nfds, readfds, writefds, exceptfds, timeout,    \
+			      data);					      \
+     if (r < 0 && r > -4096)						      \
+       {								      \
+	 __set_errno (-r);						      \
+	 r = -1;							      \
+       }								      \
+     r; })
+
+#include "../pselect.c"