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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.
116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/* Bounded-pointer definitions for PowerPC64 assembler.
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Copyright (C) 2000, 2002 Free Software Foundation, Inc.
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Contributed by Greg McGary <greg@mcgary.org>
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This file is part of the GNU C Library. Its master source is NOT part of
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the C library, however. The master source lives in the GNU MP Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#if __BOUNDED_POINTERS__
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/* Byte offsets of BP components. */
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# define oVALUE 0
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# define oLOW 4
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# define oHIGH 8
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/* Don't check bounds, just convert the BP register to its simple
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pointer value. */
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# define DISCARD_BOUNDS(rBP) \
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ld rBP, oVALUE(rBP)
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/* Check low bound, with the side effect that the BP register is converted
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its simple pointer value. Move the high bound into a register for
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later use. */
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# define CHECK_BOUNDS_LOW(rBP, rLOW, rHIGH) \
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ld rHIGH, oHIGH(rBP); \
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ld rLOW, oLOW(rBP); \
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ld rBP, oVALUE(rBP); \
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tdllt rBP, rLOW
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/* Check the high bound, which is in a register, using the given
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conditional trap instruction. */
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# define CHECK_BOUNDS_HIGH(rVALUE, rHIGH, TWLcc) \
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TWLcc rVALUE, rHIGH
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/* Check the high bound, which is stored at the return-value's high
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bound slot, using the given conditional trap instruction. */
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# define CHECK_BOUNDS_HIGH_RTN(rVALUE, rHIGH, TWLcc) \
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ld rHIGH, oHIGH(rRTN); \
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TWLcc rVALUE, rHIGH
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/* Check both bounds, with the side effect that the BP register is
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converted to its simple pointer value. */
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# define CHECK_BOUNDS_BOTH(rBP, rLOW, rHIGH) \
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CHECK_BOUNDS_LOW(rBP, rLOW, rHIGH); \
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tdlge rBP, rHIGH
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/* Check bounds on a memory region of given length, with the side
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effect that the BP register is converted to its simple pointer
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value. */
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# define CHECK_BOUNDS_BOTH_WIDE(rBP, rLOW, rHIGH, rLENGTH) \
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CHECK_BOUNDS_LOW (rBP, rLOW, rHIGH); \
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sub rHIGH, rHIGH, rLENGTH; \
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tdlgt rBP, rHIGH
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# define CHECK_BOUNDS_BOTH_WIDE_LIT(rBP, rLOW, rHIGH, LENGTH) \
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CHECK_BOUNDS_LOW (rBP, rLOW, rHIGH); \
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subi rHIGH, rHIGH, LENGTH; \
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tdlgt rBP, rHIGH
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/* Store a pointer value register into the return-value's pointer
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value slot. */
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# define STORE_RETURN_VALUE(rVALUE) \
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std rVALUE, oVALUE(rRTN)
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/* Store a low and high bounds into the return-value's pointer bounds
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slots. */
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# define STORE_RETURN_BOUNDS(rLOW, rHIGH) \
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std rLOW, oLOW(rRTN); \
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std rHIGH, oHIGH(rRTN)
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/* Stuff zero value/low/high into the BP addressed by rRTN. */
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# define RETURN_NULL_BOUNDED_POINTER \
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li r4, 0; \
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STORE_RETURN_VALUE (r4); \
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STORE_RETURN_BOUNDS (r4, r4)
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#else
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# define DISCARD_BOUNDS(rBP)
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# define CHECK_BOUNDS_LOW(rBP, rLOW, rHIGH)
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# define CHECK_BOUNDS_HIGH(rVALUE, rHIGH, TWLcc)
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# define CHECK_BOUNDS_HIGH_RTN(rVALUE, rHIGH, TWLcc)
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# define CHECK_BOUNDS_BOTH(rBP, rLOW, rHIGH)
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# define CHECK_BOUNDS_BOTH_WIDE(rBP, rLOW, rHIGH, rLENGTH)
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# define CHECK_BOUNDS_BOTH_WIDE_LIT(rBP, rLOW, rHIGH, LENGTH)
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# define STORE_RETURN_VALUE(rVALUE)
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# define STORE_RETURN_BOUNDS(rLOW, rHIGH)
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# define RETURN_NULL_BOUNDED_POINTER li rRTN, 0
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#endif
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