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NetBSD/lib/libc/arch/ns32k/sys/brk.S

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Thinko in previous: we do always use an internal name.
2000-06-26 10:25:36 +04:00
/* $NetBSD: brk.S,v 1.7 2000/06/26 06:25:43 kleink Exp $ */
* Add correct $NetBSD$ headers everywhere. * Remove $Id$ headers. * Support LIB_SCCS in all files. * Use local labels where ever possible. * Use cpufunc.h instead of __asm__ when possible. * Access labels with _C_LABEL and _ASM_LABEL. * Always set errno by calling cerror. * No more FRAME/EMARF. * No more SVC, use SYSTRAP instead. * Use "$Masqueraded: as XXX $" to show e.g. memcpy compiled as bcopy. * Rewrite vfork to work even whith a "real" vfork system call. * Make cerror take care of _REENTRANT.
1997-05-08 17:38:29 +04:00
make an arch directory in libc, and move all machine dirs into it
1993-10-07 03:17:24 +03:00
/*
* Copyright (c) 1992 Helsinki University of Technology
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* HELSINKI UNIVERSITY OF TECHNOLOGY ALLOWS FREE USE OF THIS SOFTWARE IN
* ITS "AS IS" CONDITION. HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIMS ANY
* LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
* USE OF THIS SOFTWARE.
*/
/*
* HISTORY
* 11-May-92 Johannes Helander (jvh) at Helsinki University of Technology
* Created.
*/
#include "SYS.h"
* Add correct $NetBSD$ headers everywhere. * Remove $Id$ headers. * Support LIB_SCCS in all files. * Use local labels where ever possible. * Use cpufunc.h instead of __asm__ when possible. * Access labels with _C_LABEL and _ASM_LABEL. * Always set errno by calling cerror. * No more FRAME/EMARF. * No more SVC, use SYSTRAP instead. * Use "$Masqueraded: as XXX $" to show e.g. memcpy compiled as bcopy. * Rewrite vfork to work even whith a "real" vfork system call. * Make cerror take care of _REENTRANT.
1997-05-08 17:38:29 +04:00
#if defined(LIBC_SCCS)
Thinko in previous: we do always use an internal name.
2000-06-26 10:25:36 +04:00
RCSID("$NetBSD: brk.S,v 1.7 2000/06/26 06:25:43 kleink Exp $")
* Add correct $NetBSD$ headers everywhere. * Remove $Id$ headers. * Support LIB_SCCS in all files. * Use local labels where ever possible. * Use cpufunc.h instead of __asm__ when possible. * Access labels with _C_LABEL and _ASM_LABEL. * Always set errno by calling cerror. * No more FRAME/EMARF. * No more SVC, use SYSTRAP instead. * Use "$Masqueraded: as XXX $" to show e.g. memcpy compiled as bcopy. * Rewrite vfork to work even whith a "real" vfork system call. * Make cerror take care of _REENTRANT.
1997-05-08 17:38:29 +04:00
#endif
make an arch directory in libc, and move all machine dirs into it
1993-10-07 03:17:24 +03:00
* On architectures using ELF, and conditionally on those in transition, rename _ASM_LABEL(cerror) and _ASM_LABEL(curbrk) to _C_LABEL(__cerror) and _C_LABEL(__curbrk) (or their respective architecture-specific equivalents) to avoid possible name clashes with identifiers used in user applications. * Do the same for minbrk on all architectures to avoid a GCC-specific (and on ELF architectures effectively useless) symbol reference renaming in MI code.
1999-01-15 01:48:18 +03:00
DATA_D(__minbrk, _C_LABEL(end))
make an arch directory in libc, and move all machine dirs into it
1993-10-07 03:17:24 +03:00
Thinko in previous: we do always use an internal name.
2000-06-26 10:25:36 +04:00
ENTRY(_brk)
shared lib support and some clean up.
1994-05-04 00:39:52 +04:00
PIC_PROLOGUE
* On architectures using ELF, and conditionally on those in transition, rename _ASM_LABEL(cerror) and _ASM_LABEL(curbrk) to _C_LABEL(__cerror) and _C_LABEL(__curbrk) (or their respective architecture-specific equivalents) to avoid possible name clashes with identifiers used in user applications. * Do the same for minbrk on all architectures to avoid a GCC-specific (and on ELF architectures effectively useless) symbol reference renaming in MI code.
1999-01-15 01:48:18 +03:00
cmpd PIC_S_ARG0,PIC_GOT(_C_LABEL(__minbrk))
* Add correct $NetBSD$ headers everywhere. * Remove $Id$ headers. * Support LIB_SCCS in all files. * Use local labels where ever possible. * Use cpufunc.h instead of __asm__ when possible. * Access labels with _C_LABEL and _ASM_LABEL. * Always set errno by calling cerror. * No more FRAME/EMARF. * No more SVC, use SYSTRAP instead. * Use "$Masqueraded: as XXX $" to show e.g. memcpy compiled as bcopy. * Rewrite vfork to work even whith a "real" vfork system call. * Make cerror take care of _REENTRANT.
1997-05-08 17:38:29 +04:00
bge 0f
* On architectures using ELF, and conditionally on those in transition, rename _ASM_LABEL(cerror) and _ASM_LABEL(curbrk) to _C_LABEL(__cerror) and _C_LABEL(__curbrk) (or their respective architecture-specific equivalents) to avoid possible name clashes with identifiers used in user applications. * Do the same for minbrk on all architectures to avoid a GCC-specific (and on ELF architectures effectively useless) symbol reference renaming in MI code.
1999-01-15 01:48:18 +03:00
movd PIC_GOT(_C_LABEL(__minbrk)),PIC_S_ARG0
* Add correct $NetBSD$ headers everywhere. * Remove $Id$ headers. * Support LIB_SCCS in all files. * Use local labels where ever possible. * Use cpufunc.h instead of __asm__ when possible. * Access labels with _C_LABEL and _ASM_LABEL. * Always set errno by calling cerror. * No more FRAME/EMARF. * No more SVC, use SYSTRAP instead. * Use "$Masqueraded: as XXX $" to show e.g. memcpy compiled as bcopy. * Rewrite vfork to work even whith a "real" vfork system call. * Make cerror take care of _REENTRANT.
1997-05-08 17:38:29 +04:00
0: PIC_EPILOGUE
SYSTRAP(break)
bcs _ASM_LABEL(cerror)
shared lib support and some clean up.
1994-05-04 00:39:52 +04:00
PIC_PROLOGUE
* On architectures using ELF, and conditionally on those in transition, rename _ASM_LABEL(cerror) and _ASM_LABEL(curbrk) to _C_LABEL(__cerror) and _C_LABEL(__curbrk) (or their respective architecture-specific equivalents) to avoid possible name clashes with identifiers used in user applications. * Do the same for minbrk on all architectures to avoid a GCC-specific (and on ELF architectures effectively useless) symbol reference renaming in MI code.
1999-01-15 01:48:18 +03:00
movd PIC_S_ARG0,PIC_GOT(_ASM_LABEL(curbrk))
* Add correct $NetBSD$ headers everywhere. * Remove $Id$ headers. * Support LIB_SCCS in all files. * Use local labels where ever possible. * Use cpufunc.h instead of __asm__ when possible. * Access labels with _C_LABEL and _ASM_LABEL. * Always set errno by calling cerror. * No more FRAME/EMARF. * No more SVC, use SYSTRAP instead. * Use "$Masqueraded: as XXX $" to show e.g. memcpy compiled as bcopy. * Rewrite vfork to work even whith a "real" vfork system call. * Make cerror take care of _REENTRANT.
1997-05-08 17:38:29 +04:00
movqd 0,r0
shared lib support and some clean up.
1994-05-04 00:39:52 +04:00
PIC_EPILOGUE
make an arch directory in libc, and move all machine dirs into it
1993-10-07 03:17:24 +03:00
ret 0