glibc/sysdeps/powerpc/powerpc64/bp-asm.h
Roland McGrath cfc91acd41 2002-09-17 Steven Munroe <sjmunroe@us.ibm.com>
Ported to PowerPC64 running Linux.
	* sysdeps/powerpc/powerpc64/Dist: New file.
	* sysdeps/powerpc/powerpc64/Implies: New file.
	* sysdeps/powerpc/powerpc64/Makefile: New file.
	* sysdeps/powerpc/powerpc64/__longjmp.S: New file.
	* sysdeps/powerpc/powerpc64/atomicity.h: New file.
	* sysdeps/powerpc/powerpc64/backtrace.c: New file.
	* sysdeps/powerpc/powerpc64/bp-asm.h: New file.
	* sysdeps/powerpc/powerpc64/bsd-_setjmp.S: New file.
	* sysdeps/powerpc/powerpc64/bsd-setjmp.S: New file.
	* sysdeps/powerpc/powerpc64/dl-dtprocnum.h: New file.
	* sysdeps/powerpc/powerpc64/dl-lookupcfg.h: New file.
	* sysdeps/powerpc/powerpc64/dl-machine.c: New file.
	* sysdeps/powerpc/powerpc64/dl-machine.h: New file.
	* sysdeps/powerpc/powerpc64/memset.S: New file.
	* sysdeps/powerpc/powerpc64/ppc-mcount.S: New file.
	* sysdeps/powerpc/powerpc64/register-dump.h: New file.
	* sysdeps/powerpc/powerpc64/setjmp.S: New file.
	* sysdeps/powerpc/powerpc64/stpcpy.S: New file.
	* sysdeps/powerpc/powerpc64/strchr.S: New file.
	* sysdeps/powerpc/powerpc64/strcmp.S: New file.
	* sysdeps/powerpc/powerpc64/strcpy.S: New file.
	* sysdeps/powerpc/powerpc64/strlen.S: New file.
	* sysdeps/powerpc/powerpc64/elf/bzero.S: New file.
	* sysdeps/powerpc/powerpc64/elf/start.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_copysignf.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions: New File.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/glob64.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: New file.
2002-09-17 23:50:03 +00:00

116 lines
3.7 KiB
C

/* Bounded-pointer definitions for PowerPC64 assembler.
Copyright (C) 2000, 2002 Free Software Foundation, Inc.
Contributed by Greg McGary <greg@mcgary.org>
This file is part of the GNU C Library. Its master source is NOT part of
the C library, however. The master source lives in the GNU MP Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#if __BOUNDED_POINTERS__
/* Byte offsets of BP components. */
# define oVALUE 0
# define oLOW 4
# define oHIGH 8
/* Don't check bounds, just convert the BP register to its simple
pointer value. */
# define DISCARD_BOUNDS(rBP) \
ld rBP, oVALUE(rBP)
/* Check low bound, with the side effect that the BP register is converted
its simple pointer value. Move the high bound into a register for
later use. */
# define CHECK_BOUNDS_LOW(rBP, rLOW, rHIGH) \
ld rHIGH, oHIGH(rBP); \
ld rLOW, oLOW(rBP); \
ld rBP, oVALUE(rBP); \
tdllt rBP, rLOW
/* Check the high bound, which is in a register, using the given
conditional trap instruction. */
# define CHECK_BOUNDS_HIGH(rVALUE, rHIGH, TWLcc) \
TWLcc rVALUE, rHIGH
/* Check the high bound, which is stored at the return-value's high
bound slot, using the given conditional trap instruction. */
# define CHECK_BOUNDS_HIGH_RTN(rVALUE, rHIGH, TWLcc) \
ld rHIGH, oHIGH(rRTN); \
TWLcc rVALUE, rHIGH
/* Check both bounds, with the side effect that the BP register is
converted to its simple pointer value. */
# define CHECK_BOUNDS_BOTH(rBP, rLOW, rHIGH) \
CHECK_BOUNDS_LOW(rBP, rLOW, rHIGH); \
tdlge rBP, rHIGH
/* Check bounds on a memory region of given length, with the side
effect that the BP register is converted to its simple pointer
value. */
# define CHECK_BOUNDS_BOTH_WIDE(rBP, rLOW, rHIGH, rLENGTH) \
CHECK_BOUNDS_LOW (rBP, rLOW, rHIGH); \
sub rHIGH, rHIGH, rLENGTH; \
tdlgt rBP, rHIGH
# define CHECK_BOUNDS_BOTH_WIDE_LIT(rBP, rLOW, rHIGH, LENGTH) \
CHECK_BOUNDS_LOW (rBP, rLOW, rHIGH); \
subi rHIGH, rHIGH, LENGTH; \
tdlgt rBP, rHIGH
/* Store a pointer value register into the return-value's pointer
value slot. */
# define STORE_RETURN_VALUE(rVALUE) \
std rVALUE, oVALUE(rRTN)
/* Store a low and high bounds into the return-value's pointer bounds
slots. */
# define STORE_RETURN_BOUNDS(rLOW, rHIGH) \
std rLOW, oLOW(rRTN); \
std rHIGH, oHIGH(rRTN)
/* Stuff zero value/low/high into the BP addressed by rRTN. */
# define RETURN_NULL_BOUNDED_POINTER \
li r4, 0; \
STORE_RETURN_VALUE (r4); \
STORE_RETURN_BOUNDS (r4, r4)
#else
# define DISCARD_BOUNDS(rBP)
# define CHECK_BOUNDS_LOW(rBP, rLOW, rHIGH)
# define CHECK_BOUNDS_HIGH(rVALUE, rHIGH, TWLcc)
# define CHECK_BOUNDS_HIGH_RTN(rVALUE, rHIGH, TWLcc)
# define CHECK_BOUNDS_BOTH(rBP, rLOW, rHIGH)
# define CHECK_BOUNDS_BOTH_WIDE(rBP, rLOW, rHIGH, rLENGTH)
# define CHECK_BOUNDS_BOTH_WIDE_LIT(rBP, rLOW, rHIGH, LENGTH)
# define STORE_RETURN_VALUE(rVALUE)
# define STORE_RETURN_BOUNDS(rLOW, rHIGH)
# define RETURN_NULL_BOUNDED_POINTER li rRTN, 0
#endif