diff options
Diffstat (limited to 'lib/libsys/i386/cerror.S')
| -rw-r--r-- | lib/libsys/i386/cerror.S | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/libsys/i386/cerror.S b/lib/libsys/i386/cerror.S new file mode 100644 index 000000000000..6e7015edabc4 --- /dev/null +++ b/lib/libsys/i386/cerror.S @@ -0,0 +1,63 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. + */ + +#include <machine/asm.h> +#include "SYS.h" + + .globl HIDENAME(cerror) + .hidden HIDENAME(cerror) + + /* + * The __error() function is thread aware. For non-threaded + * programs and the initial thread in threaded programs, + * it returns a pointer to the global errno variable. + */ + .globl CNAME(__error) + .type CNAME(__error),@function +HIDENAME(cerror): +#ifdef PIC + PIC_PROLOGUE + pushl %eax + call PIC_PLT(CNAME(__error)) + popl %ecx + PIC_EPILOGUE +#else + pushl %eax + call CNAME(__error) + popl %ecx +#endif + movl %ecx,(%eax) + movl $-1,%eax + movl $-1,%edx + ret + + .section .note.GNU-stack,"",%progbits |
