diff options
Diffstat (limited to 'gdb/hppab-nat.c')
| -rw-r--r-- | gdb/hppab-nat.c | 97 |
1 files changed, 49 insertions, 48 deletions
diff --git a/gdb/hppab-nat.c b/gdb/hppab-nat.c index a795e02..29d22eb 100644 --- a/gdb/hppab-nat.c +++ b/gdb/hppab-nat.c @@ -6,21 +6,22 @@ Contributed by the Center for Software Science at the University of Utah (pa-gdb-bugs@cs.utah.edu). -This file is part of GDB. + This file is part of GDB. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program 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 General Public License for more details. + This program 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 General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ #include "defs.h" #include "inferior.h" @@ -80,7 +81,7 @@ fetch_register (regno) } } supply_register (regno, buf); - error_exit:; +error_exit:; } /* Fetch all registers, or just one, from the child process. */ @@ -117,20 +118,20 @@ store_inferior_registers (regno) regaddr = register_addr (regno, offset); errno = 0; if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM) - { - scratch = *(int *) ®isters[REGISTER_BYTE (regno)] | 0x3; - ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, - scratch); - if (errno != 0) - { + { + scratch = *(int *) ®isters[REGISTER_BYTE (regno)] | 0x3; + ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, + scratch); + if (errno != 0) + { /* Error, even if attached. Failing to write these two - registers is pretty serious. */ - sprintf (buf, "writing register number %d", regno); - perror_with_name (buf); - } - } + registers is pretty serious. */ + sprintf (buf, "writing register number %d", regno); + perror_with_name (buf); + } + } else - for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int)) + for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int)) { errno = 0; ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, @@ -146,7 +147,7 @@ store_inferior_registers (regno) warning (msg); return; } - regaddr += sizeof(int); + regaddr += sizeof (int); } } else @@ -164,28 +165,28 @@ store_inferior_registers (regno) The arguments are as follows: - PT_PROT -- The ptrace action to perform. + PT_PROT -- The ptrace action to perform. + + INFERIOR_PID -- The pid of the process who's page table entries + will be modified. - INFERIOR_PID -- The pid of the process who's page table entries - will be modified. + PT_ARGS -- The *address* of a 3 word block of memory which has + additional information: - PT_ARGS -- The *address* of a 3 word block of memory which has - additional information: + word 0 -- The start address to watch. This should be a page-aligned + address. - word 0 -- The start address to watch. This should be a page-aligned - address. + word 1 -- The ending address to watch. Again, this should be a + page aligned address. - word 1 -- The ending address to watch. Again, this should be a - page aligned address. + word 2 -- Nonzero to enable the data memory break bit on the + given address range or zero to disable the data memory break + bit on the given address range. - word 2 -- Nonzero to enable the data memory break bit on the - given address range or zero to disable the data memory break - bit on the given address range. + This call may fail if the given addresses are not valid in the inferior + process. This most often happens when restarting a program which + as watchpoints inserted on heap or stack memory. */ - This call may fail if the given addresses are not valid in the inferior - process. This most often happens when restarting a program which - as watchpoints inserted on heap or stack memory. */ - #define PT_PROT 21 int @@ -198,16 +199,16 @@ hppa_set_watchpoint (addr, len, flag) pt_args[2] = flag; /* Mask off the lower 12 bits since we want to work on a page basis. */ - pt_args[0] >>= 12; - pt_args[1] >>= 12; + pt_args[0] >>= 12; + pt_args[1] >>= 12; /* Rounding adjustments. */ - pt_args[1] -= pt_args[0]; - pt_args[1]++; + pt_args[1] -= pt_args[0]; + pt_args[1]++; /* Put the lower 12 bits back as zero. */ - pt_args[0] <<= 12; - pt_args[1] <<= 12; + pt_args[0] <<= 12; + pt_args[1] <<= 12; /* Do it. */ return ptrace (PT_PROT, inferior_pid, (PTRACE_ARG3_TYPE) pt_args, 0); |