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author | Roland McGrath <roland@gnu.org> | 2002-09-17 23:50:03 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2002-09-17 23:50:03 +0000 |
commit | cfc91acd418d2ea62a4520b42406a16ef07257c3 (patch) | |
tree | c7d291182781c1534a03528b33d417983b8d2e54 /sysdeps/powerpc/powerpc64/bp-asm.h | |
parent | 81cb0d8214c425e356c3f79b4b024caab36540b8 (diff) | |
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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.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/bp-asm.h')
-rw-r--r-- | sysdeps/powerpc/powerpc64/bp-asm.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/bp-asm.h b/sysdeps/powerpc/powerpc64/bp-asm.h new file mode 100644 index 0000000000..ee99e3044b --- /dev/null +++ b/sysdeps/powerpc/powerpc64/bp-asm.h @@ -0,0 +1,115 @@ +/* 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 + |