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author | Ulrich Drepper <drepper@redhat.com> | 2001-03-16 21:07:22 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2001-03-16 21:07:22 +0000 |
commit | aeba9785a6e2e8dca120bb0b62b74ea1eda0a4a8 (patch) | |
tree | 8438c4d6081766a1ede6c89328dfbcd389dbff82 /sysdeps/unix/sysv/linux/ia64/sys/rse.h | |
parent | b8a8413c6f7970bc4d5659791c3b3670cc037578 (diff) | |
download | glibc-aeba9785a6e2e8dca120bb0b62b74ea1eda0a4a8.tar.gz glibc-aeba9785a6e2e8dca120bb0b62b74ea1eda0a4a8.tar.xz glibc-aeba9785a6e2e8dca120bb0b62b74ea1eda0a4a8.zip |
Update.
2001-03-16 David Mosberger <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h (struct sigcontext): Drop hack that was needed for 2.1.1 kernel headers. * sysdeps/unix/sysv/linux/ia64/ucontext_i.h: New file. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Rewrite to make it overlay with kernel's "struct sigcontext". * sysdeps/unix/sysv/linux/ia64/Makefile (sysdep_headers): Add sys/rse.h for "misc" subdir. (sysdep_routines): Add __start_context for "stdlib" subdir. * sysdeps/unix/sysv/linux/ia64/sys/rse.h: New file (based on kernel file of the same name). * stdlib/Makefile (tests): Add tst-setcontext. * stdlib/tst-setcontext.c: New file (based on a sample program by Uli Drepper). * sysdeps/unix/sysv/linux/ia64/setcontext.S: New file. * sysdeps/unix/sysv/linux/ia64/getcontext.S: New file. * sysdeps/unix/sysv/linux/ia64/__start_context.S: New file. * sysdeps/unix/sysv/linux/ia64/makecontext.c: New file. * sysdeps/unix/sysv/linux/ia64/__longjmp.S (__longjmp): Use extr.u instead of shift & and.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/sys/rse.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/sys/rse.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/sys/rse.h b/sysdeps/unix/sysv/linux/ia64/sys/rse.h new file mode 100644 index 0000000000..a6ca53a5c6 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/sys/rse.h @@ -0,0 +1,78 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. + + 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. */ + +#ifndef _ia64_rse_h +#define _ia64_rse_h + +#include <features.h> + +/* Register stack engine related helper functions. This file may be + used in applications, so be careful about the name-space and give + some consideration to non-GNU C compilers (though __inline is + fine). */ + +static __inline unsigned long +ia64_rse_slot_num (unsigned long *addr) +{ + return (((unsigned long) addr) >> 3) & 0x3f; +} + +/* Return TRUE if ADDR is the address of an RNAT slot. */ + +static __inline unsigned long +ia64_rse_is_rnat_slot (unsigned long *addr) +{ + return ia64_rse_slot_num (addr) == 0x3f; +} + +/* Returns the address of the RNAT slot that covers the slot at + address SLOT_ADDR. */ + +static __inline unsigned long * +ia64_rse_rnat_addr (unsigned long *slot_addr) +{ + return (unsigned long *) ((unsigned long) slot_addr | (0x3f << 3)); +} + +/* Calcuate the number of registers in the dirty partition starting at + BSPSTORE with a size of DIRTY bytes. This isn't simply DIRTY + divided by eight because the 64th slot is used to store ar.rnat. */ + +static __inline unsigned long +ia64_rse_num_regs (unsigned long *bspstore, unsigned long *bsp) +{ + unsigned long slots = (bsp - bspstore); + + return slots - (ia64_rse_slot_num(bspstore) + slots)/0x40; +} + +/* The inverse of the above: given bspstore and the number of + registers, calculate ar.bsp. */ + +static __inline unsigned long * +ia64_rse_skip_regs (unsigned long *addr, long num_regs) +{ + long delta = ia64_rse_slot_num(addr) + num_regs; + + if (num_regs < 0) + delta -= 0x3e; + return addr + num_regs + delta/0x3f; +} + +#endif /* _ia64_rse_h */ |