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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [convex-xdep.c] - Blame information for rev 1765

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Line No. Rev Author Line
1 104 markom
/* OBSOLETE /* Convex host-dependent code for GDB. */
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/* OBSOLETE    Copyright 1990, 1991, 1992 Free Software Foundation, Inc. */
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/* OBSOLETE  */
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/* OBSOLETE This file is part of GDB. */
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/* OBSOLETE  */
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/* OBSOLETE This program is free software; you can redistribute it and/or modify */
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/* OBSOLETE it under the terms of the GNU General Public License as published by */
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/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
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/* OBSOLETE (at your option) any later version. */
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/* OBSOLETE  */
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/* OBSOLETE This program is distributed in the hope that it will be useful, */
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/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
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/* OBSOLETE GNU General Public License for more details. */
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/* OBSOLETE  */
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/* OBSOLETE You should have received a copy of the GNU General Public License */
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/* OBSOLETE along with this program; if not, write to the Free Software */
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/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE #include "defs.h" */
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/* OBSOLETE #include "command.h" */
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/* OBSOLETE #include "symtab.h" */
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/* OBSOLETE #include "value.h" */
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/* OBSOLETE #include "frame.h" */
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/* OBSOLETE #include "inferior.h" */
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/* OBSOLETE #include "gdb_wait.h" */
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/* OBSOLETE  */
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/* OBSOLETE #include <signal.h> */
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/* OBSOLETE #include <fcntl.h> */
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/* OBSOLETE #include "gdbcore.h" */
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/* OBSOLETE  */
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/* OBSOLETE #include <sys/param.h> */
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/* OBSOLETE #include <sys/dir.h> */
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/* OBSOLETE #include <sys/user.h> */
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/* OBSOLETE #include <sys/ioctl.h> */
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/* OBSOLETE #include <sys/pcntl.h> */
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/* OBSOLETE #include <sys/thread.h> */
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/* OBSOLETE #include <sys/proc.h> */
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/* OBSOLETE #include <sys/file.h> */
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/* OBSOLETE #include "gdb_stat.h" */
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/* OBSOLETE #include <sys/mman.h> */
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/* OBSOLETE  */
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/* OBSOLETE #include <convex/vmparam.h> */
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/* OBSOLETE #include <convex/filehdr.h> */
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/* OBSOLETE #include <convex/opthdr.h> */
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/* OBSOLETE #include <convex/scnhdr.h> */
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/* OBSOLETE #include <convex/core.h> */
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/* OBSOLETE  */
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/* OBSOLETE /* Per-thread data, read from the inferior at each stop and written */
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/* OBSOLETE    back at each resume.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE /* Number of active threads. */
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/* OBSOLETE    Tables are valid for thread numbers less than this.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int n_threads; */
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/* OBSOLETE  */
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/* OBSOLETE #define MAXTHREADS 8 */
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/* OBSOLETE              */
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/* OBSOLETE /* Thread state.  The remaining data is valid only if this is PI_TALIVE.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int thread_state[MAXTHREADS]; */
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/* OBSOLETE  */
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/* OBSOLETE /* Stop pc, signal, signal subcode *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int thread_pc[MAXTHREADS]; */
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/* OBSOLETE static int thread_signal[MAXTHREADS]; */
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/* OBSOLETE static int thread_sigcode[MAXTHREADS];       */
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/* OBSOLETE  */
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/* OBSOLETE /* Thread registers. */
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/* OBSOLETE    If thread is selected, the regs are in registers[] instead.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static char thread_regs[MAXTHREADS][REGISTER_BYTES]; */
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/* OBSOLETE  */
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/* OBSOLETE /* 1 if the top frame on the thread's stack was a context frame, */
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/* OBSOLETE    meaning that the kernel is up to something and we should not */
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/* OBSOLETE    touch the thread at all except to resume it.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static char thread_is_in_kernel[MAXTHREADS]; */
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/* OBSOLETE  */
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/* OBSOLETE /* The currently selected thread's number.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int inferior_thread; */
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/* OBSOLETE  */
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/* OBSOLETE /* Inferior process's file handle and a process control block */
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/* OBSOLETE    to feed args to ioctl with.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int inferior_fd; */
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/* OBSOLETE static struct pcntl ps; */
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/* OBSOLETE  */
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/* OBSOLETE /* SOFF file headers for exec or core file.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static FILEHDR filehdr; */
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/* OBSOLETE static OPTHDR opthdr; */
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/* OBSOLETE static SCNHDR scnhdr; */
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/* OBSOLETE  */
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/* OBSOLETE /* Address maps constructed from section headers of exec and core files. */
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/* OBSOLETE    Defines process address -> file address translation.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE struct pmap  */
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/* OBSOLETE { */
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/* OBSOLETE     long mem_addr;          /* process start address *x/ */
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/* OBSOLETE     long mem_end;           /* process end+1 address *x/ */
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/* OBSOLETE     long file_addr;         /* file start address *x/ */
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/* OBSOLETE     long thread;            /* -1 shared; 0,1,... thread-local *x/ */
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/* OBSOLETE     long type;                      /* S_TEXT S_DATA S_BSS S_TBSS etc *x/ */
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/* OBSOLETE     long which;                     /* used to sort map for info files *x/ */
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/* OBSOLETE }; */
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/* OBSOLETE  */
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/* OBSOLETE static int n_exec, n_core; */
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/* OBSOLETE static struct pmap exec_map[100]; */
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/* OBSOLETE static struct pmap core_map[100]; */
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/* OBSOLETE  */
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/* OBSOLETE /* Offsets in the core file of core_context and core_tcontext blocks.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int context_offset; */
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/* OBSOLETE static int tcontext_offset[MAXTHREADS]; */
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/* OBSOLETE  */
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/* OBSOLETE /* Core file control blocks.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static struct core_context_v70 c; */
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/* OBSOLETE static struct core_tcontext_v70 tc; */
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/* OBSOLETE static struct user u; */
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/* OBSOLETE static thread_t th; */
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/* OBSOLETE static proc_t pr; */
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/* OBSOLETE  */
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/* OBSOLETE  */
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/* OBSOLETE /* Vector and communication registers from core dump or from inferior. */
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/* OBSOLETE    These are read on demand, ie, not normally valid.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static struct vecst vector_registers; */
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/* OBSOLETE static struct creg_ctx comm_registers; */
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/* OBSOLETE  */
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/* OBSOLETE /* Flag, set on a vanilla CONT command and cleared when the inferior */
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/* OBSOLETE    is continued.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int all_continue; */
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/* OBSOLETE  */
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/* OBSOLETE /* Flag, set when the inferior is continued by a vanilla CONT command, */
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/* OBSOLETE    cleared if it is continued for any other purpose.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int thread_switch_ok; */
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/* OBSOLETE  */
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/* OBSOLETE /* Stack of signals recieved from threads but not yet delivered to gdb.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE struct threadpid  */
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/* OBSOLETE { */
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/* OBSOLETE     int pid; */
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/* OBSOLETE     int thread; */
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/* OBSOLETE     int signo; */
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/* OBSOLETE     int subsig; */
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/* OBSOLETE     int pc; */
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/* OBSOLETE }; */
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/* OBSOLETE  */
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/* OBSOLETE static struct threadpid signal_stack_bot[100]; */
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/* OBSOLETE static struct threadpid *signal_stack = signal_stack_bot; */
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/* OBSOLETE  */
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/* OBSOLETE /* How to detect empty stack -- bottom frame is all zero.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE #define signal_stack_is_empty() (signal_stack->pid == 0) */
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/* OBSOLETE  */
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/* OBSOLETE /* Mode controlled by SET PIPE command, controls the psw SEQ bit */
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/* OBSOLETE    which forces each instruction to complete before the next one starts.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int sequential = 0; */
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/* OBSOLETE  */
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/* OBSOLETE /* Mode controlled by the SET PARALLEL command.  Values are: */
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/* OBSOLETE    0  concurrency limit 1 thread, dynamic scheduling */
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/* OBSOLETE    1  no concurrency limit, dynamic scheduling */
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/* OBSOLETE    2  no concurrency limit, fixed scheduling  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int parallel = 1; */
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/* OBSOLETE  */
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/* OBSOLETE /* Mode controlled by SET BASE command, output radix for unformatted */
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/* OBSOLETE    integer typeout, as in argument lists, aggregates, and so on. */
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/* OBSOLETE    Zero means guess whether it's an address (hex) or not (decimal).  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int output_radix = 0; */
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/* OBSOLETE  */
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/* OBSOLETE /* Signal subcode at last thread stop.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int stop_sigcode; */
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/* OBSOLETE  */
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/* OBSOLETE /* Hack, see wait() below.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static int exec_trap_timer; */
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/* OBSOLETE  */
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/* OBSOLETE #include "gdbcmd.h" */
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/* OBSOLETE  */
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/* OBSOLETE static struct type *vector_type (); */
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/* OBSOLETE static long *read_vector_register (); */
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/* OBSOLETE static long *read_vector_register_1 (); */
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/* OBSOLETE static void write_vector_register (); */
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/* OBSOLETE static ULONGEST read_comm_register (); */
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/* OBSOLETE static void write_comm_register (); */
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/* OBSOLETE static void convex_cont_command (); */
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/* OBSOLETE static void thread_continue (); */
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/* OBSOLETE static void select_thread (); */
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/* OBSOLETE static void scan_stack (); */
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/* OBSOLETE static void set_fixed_scheduling (); */
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/* OBSOLETE static char *subsig_name (); */
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/* OBSOLETE static void psw_info (); */
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/* OBSOLETE static sig_noop (); */
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/* OBSOLETE static ptr_cmp (); */
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/* OBSOLETE  */
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/* OBSOLETE  */
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/* OBSOLETE /* Execute ptrace.  Convex V7 replaced ptrace with pattach. */
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/* OBSOLETE    Allow ptrace (0) as a no-op.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE int */
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/* OBSOLETE call_ptrace (request, pid, procaddr, buf) */
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/* OBSOLETE      int request, pid; */
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/* OBSOLETE      PTRACE_ARG3_TYPE procaddr; */
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/* OBSOLETE      int buf; */
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/* OBSOLETE { */
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/* OBSOLETE   if (request == 0) */
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/* OBSOLETE     return; */
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/* OBSOLETE   error ("no ptrace"); */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Replacement for system execle routine. */
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/* OBSOLETE    Convert it to an equivalent exect, which pattach insists on.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE execle (name, argv) */
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/* OBSOLETE      char *name, *argv; */
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/* OBSOLETE { */
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/* OBSOLETE   char ***envp = (char ***) &argv; */
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/* OBSOLETE   while (*envp++) ; */
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/* OBSOLETE  */
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/* OBSOLETE   signal (SIGTRAP, sig_noop); */
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/* OBSOLETE   exect (name, &argv, *envp); */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Stupid handler for stupid trace trap that otherwise causes */
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/* OBSOLETE    startup to stupidly hang.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static sig_noop ()  */
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/* OBSOLETE {} */
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/* OBSOLETE  */
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/* OBSOLETE /* Read registers from inferior into registers[] array. */
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/* OBSOLETE    For convex, they are already there, read in when the inferior stops.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE void */
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/* OBSOLETE fetch_inferior_registers (regno) */
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/* OBSOLETE      int regno; */
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/* OBSOLETE { */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Store our register values back into the inferior. */
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/* OBSOLETE    For Convex, do this only once, right before resuming inferior.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE void */
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/* OBSOLETE store_inferior_registers (regno) */
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/* OBSOLETE      int regno; */
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/* OBSOLETE { */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Copy LEN bytes from inferior's memory starting at MEMADDR */
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/* OBSOLETE    to debugger memory starting at MYADDR.  */
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/* OBSOLETE    On failure (cannot read from inferior, usually because address is out */
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/* OBSOLETE    of bounds) returns the value of errno. *x/ */
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/* OBSOLETE  */
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/* OBSOLETE int */
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/* OBSOLETE read_inferior_memory (memaddr, myaddr, len) */
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/* OBSOLETE      CORE_ADDR memaddr; */
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/* OBSOLETE      char *myaddr; */
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/* OBSOLETE      int len; */
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/* OBSOLETE { */
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/* OBSOLETE   errno = 0; */
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/* OBSOLETE   while (len > 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       /* little-known undocumented max request size *x/ */
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/* OBSOLETE       int i = (len < 12288) ? len : 12288; */
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/* OBSOLETE  */
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/* OBSOLETE       lseek (inferior_fd, memaddr, 0); */
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/* OBSOLETE       read (inferior_fd, myaddr, i); */
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/* OBSOLETE  */
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/* OBSOLETE       memaddr += i; */
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/* OBSOLETE       myaddr += i; */
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/* OBSOLETE       len -= i; */
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/* OBSOLETE     } */
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/* OBSOLETE   if (errno)  */
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/* OBSOLETE     memset (myaddr, '\0', len); */
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/* OBSOLETE   return errno; */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Copy LEN bytes of data from debugger memory at MYADDR */
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/* OBSOLETE    to inferior's memory at MEMADDR. */
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/* OBSOLETE    Returns errno on failure (cannot write the inferior) *x/ */
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/* OBSOLETE  */
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/* OBSOLETE int */
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/* OBSOLETE write_inferior_memory (memaddr, myaddr, len) */
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/* OBSOLETE      CORE_ADDR memaddr; */
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/* OBSOLETE      char *myaddr; */
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/* OBSOLETE      int len; */
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/* OBSOLETE { */
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/* OBSOLETE   errno = 0; */
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/* OBSOLETE   lseek (inferior_fd, memaddr, 0); */
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/* OBSOLETE   write (inferior_fd, myaddr, len); */
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/* OBSOLETE   return errno; */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Here from create_inferior when the inferior process has been created */
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/* OBSOLETE    and started up.  We must do a pattach to grab it for debugging. */
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/* OBSOLETE  */
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/* OBSOLETE    Also, intercept the CONT command by altering its dispatch address.  *x/ */
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/* OBSOLETE /* FIXME: This used to be called from a macro CREATE_INFERIOR_HOOK. */
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/* OBSOLETE    But now init_trace_fun is in the same place.  So re-write this to */
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/* OBSOLETE    use the init_trace_fun (making convex a debugging target).  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE create_inferior_hook (pid) */
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/* OBSOLETE     int pid; */
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/* OBSOLETE { */
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/* OBSOLETE   static char cont[] = "cont"; */
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/* OBSOLETE   static char cont1[] = "c"; */
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/* OBSOLETE   char *linep = cont; */
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/* OBSOLETE   char *linep1 = cont1; */
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/* OBSOLETE   char **line = &linep; */
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/* OBSOLETE   char **line1 = &linep1; */
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/* OBSOLETE   struct cmd_list_element *c; */
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/* OBSOLETE  */
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/* OBSOLETE   c = lookup_cmd (line, cmdlist, "", 0); */
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/* OBSOLETE   c->function = convex_cont_command; */
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/* OBSOLETE   c = lookup_cmd (line1, cmdlist, "", 0); */
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/* OBSOLETE   c->function = convex_cont_command; */
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/* OBSOLETE  */
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/* OBSOLETE   inferior_fd = pattach (pid, O_EXCL); */
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/* OBSOLETE   if (inferior_fd < 0) */
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/* OBSOLETE     perror_with_name ("pattach"); */
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/* OBSOLETE   inferior_thread = 0; */
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/* OBSOLETE   set_fixed_scheduling (pid, parallel == 2); */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Attach process PID for debugging.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE attach (pid) */
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/* OBSOLETE     int pid; */
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/* OBSOLETE { */
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/* OBSOLETE   int fd = pattach (pid, O_EXCL); */
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/* OBSOLETE   if (fd < 0) */
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/* OBSOLETE     perror_with_name ("pattach"); */
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/* OBSOLETE   attach_flag = 1; */
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/* OBSOLETE   /* wait for strange kernel reverberations to go away *x/ */
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/* OBSOLETE   sleep (1); */
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/* OBSOLETE  */
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/* OBSOLETE   setpgrp (pid, pid); */
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/* OBSOLETE  */
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/* OBSOLETE   inferior_fd = fd; */
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/* OBSOLETE   inferior_thread = 0; */
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/* OBSOLETE   return pid; */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Stop debugging the process whose number is PID */
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/* OBSOLETE    and continue it with signal number SIGNAL. */
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/* OBSOLETE    SIGNAL = 0 means just continue it.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE void */
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/* OBSOLETE detach (signal) */
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/* OBSOLETE      int signal; */
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/* OBSOLETE { */
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/* OBSOLETE   signal_stack = signal_stack_bot; */
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/* OBSOLETE   thread_continue (-1, 0, signal); */
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/* OBSOLETE   ioctl (inferior_fd, PIXDETACH, &ps); */
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/* OBSOLETE   close (inferior_fd); */
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/* OBSOLETE   inferior_fd = 0; */
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/* OBSOLETE   attach_flag = 0; */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Kill off the inferior process.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE kill_inferior () */
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/* OBSOLETE { */
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/* OBSOLETE   if (inferior_pid == 0) */
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/* OBSOLETE     return; */
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/* OBSOLETE   ioctl (inferior_fd, PIXTERMINATE, 0); */
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/* OBSOLETE   wait (0); */
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/* OBSOLETE   target_mourn_inferior (); */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Read vector register REG, and return a pointer to the value.  *x/ */
380
/* OBSOLETE  */
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/* OBSOLETE static long * */
382
/* OBSOLETE read_vector_register (reg) */
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/* OBSOLETE     int reg; */
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/* OBSOLETE { */
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/* OBSOLETE   if (have_inferior_p ()) */
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/* OBSOLETE     { */
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/* OBSOLETE       errno = 0; */
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/* OBSOLETE       ps.pi_buffer = (char *) &vector_registers; */
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/* OBSOLETE       ps.pi_nbytes = sizeof vector_registers; */
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/* OBSOLETE       ps.pi_offset = 0; */
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/* OBSOLETE       ps.pi_thread = inferior_thread; */
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/* OBSOLETE       ioctl (inferior_fd, PIXRDVREGS, &ps); */
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/* OBSOLETE       if (errno) */
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/* OBSOLETE     memset (&vector_registers, '\0', sizeof vector_registers); */
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/* OBSOLETE     } */
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/* OBSOLETE   else if (corechan >= 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       lseek (corechan, tcontext_offset[inferior_thread], 0); */
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/* OBSOLETE       if (myread (corechan, &tc, sizeof tc) < 0) */
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/* OBSOLETE     perror_with_name (corefile); */
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/* OBSOLETE       lseek (corechan, tc.core_thread_p, 0); */
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/* OBSOLETE       if (myread (corechan, &th, sizeof th) < 0) */
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/* OBSOLETE     perror_with_name (corefile); */
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/* OBSOLETE       lseek (corechan, tc.core_vregs_p, 0); */
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/* OBSOLETE       if (myread (corechan, &vector_registers, 16*128) < 0) */
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/* OBSOLETE     perror_with_name (corefile); */
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/* OBSOLETE       vector_registers.vm[0] = th.t_vect_ctx.vc_vm[0]; */
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/* OBSOLETE       vector_registers.vm[1] = th.t_vect_ctx.vc_vm[1]; */
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/* OBSOLETE       vector_registers.vls = th.t_vect_ctx.vc_vls; */
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/* OBSOLETE     } */
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/* OBSOLETE  */
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/* OBSOLETE   return read_vector_register_1 (reg); */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Return a pointer to vector register REG, which must already have been */
416
/* OBSOLETE    fetched from the inferior or core file.  *x/ */
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/* OBSOLETE  */
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/* OBSOLETE static long * */
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/* OBSOLETE read_vector_register_1 (reg)  */
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/* OBSOLETE     int reg; */
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/* OBSOLETE { */
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/* OBSOLETE   switch (reg) */
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/* OBSOLETE     { */
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/* OBSOLETE     case VM_REGNUM: */
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/* OBSOLETE       return (long *) vector_registers.vm; */
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/* OBSOLETE     case VS_REGNUM: */
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/* OBSOLETE       return (long *) &vector_registers.vls; */
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/* OBSOLETE     case VL_REGNUM: */
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/* OBSOLETE       return 1 + (long *) &vector_registers.vls; */
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/* OBSOLETE     default: */
431
/* OBSOLETE       return (long *) &vector_registers.vr[reg]; */
432
/* OBSOLETE     } */
433
/* OBSOLETE } */
434
/* OBSOLETE  */
435
/* OBSOLETE /* Write vector register REG, element ELEMENT, new value VAL. */
436
/* OBSOLETE    NB: must use read-modify-write on the entire vector state, */
437
/* OBSOLETE    since pattach does not do offsetted writes correctly.  *x/ */
438
/* OBSOLETE  */
439
/* OBSOLETE static void */
440
/* OBSOLETE write_vector_register (reg, element, val) */
441
/* OBSOLETE     int reg, element; */
442
/* OBSOLETE     ULONGEST val; */
443
/* OBSOLETE { */
444
/* OBSOLETE   if (have_inferior_p ()) */
445
/* OBSOLETE     { */
446
/* OBSOLETE       errno = 0; */
447
/* OBSOLETE       ps.pi_thread = inferior_thread; */
448
/* OBSOLETE       ps.pi_offset = 0; */
449
/* OBSOLETE       ps.pi_buffer = (char *) &vector_registers; */
450
/* OBSOLETE       ps.pi_nbytes = sizeof vector_registers; */
451
/* OBSOLETE  */
452
/* OBSOLETE       ioctl (inferior_fd, PIXRDVREGS, &ps); */
453
/* OBSOLETE  */
454
/* OBSOLETE       switch (reg) */
455
/* OBSOLETE     { */
456
/* OBSOLETE     case VL_REGNUM: */
457
/* OBSOLETE       vector_registers.vls = */
458
/* OBSOLETE         (vector_registers.vls & 0xffffffff00000000LL) */
459
/* OBSOLETE           + (unsigned long) val; */
460
/* OBSOLETE       break; */
461
/* OBSOLETE  */
462
/* OBSOLETE     case VS_REGNUM: */
463
/* OBSOLETE       vector_registers.vls = */
464
/* OBSOLETE         (val << 32) + (unsigned long) vector_registers.vls; */
465
/* OBSOLETE       break; */
466
/* OBSOLETE          */
467
/* OBSOLETE     default: */
468
/* OBSOLETE       vector_registers.vr[reg].el[element] = val; */
469
/* OBSOLETE       break; */
470
/* OBSOLETE     } */
471
/* OBSOLETE  */
472
/* OBSOLETE       ioctl (inferior_fd, PIXWRVREGS, &ps); */
473
/* OBSOLETE  */
474
/* OBSOLETE       if (errno) */
475
/* OBSOLETE     perror_with_name ("writing vector register"); */
476
/* OBSOLETE     } */
477
/* OBSOLETE } */
478
/* OBSOLETE  */
479
/* OBSOLETE /* Return the contents of communication register NUM.  *x/  */
480
/* OBSOLETE  */
481
/* OBSOLETE static ULONGEST  */
482
/* OBSOLETE read_comm_register (num) */
483
/* OBSOLETE      int num; */
484
/* OBSOLETE { */
485
/* OBSOLETE   if (have_inferior_p ()) */
486
/* OBSOLETE     { */
487
/* OBSOLETE       ps.pi_buffer = (char *) &comm_registers; */
488
/* OBSOLETE       ps.pi_nbytes = sizeof comm_registers; */
489
/* OBSOLETE       ps.pi_offset = 0; */
490
/* OBSOLETE       ps.pi_thread = inferior_thread; */
491
/* OBSOLETE       ioctl (inferior_fd, PIXRDCREGS, &ps); */
492
/* OBSOLETE     } */
493
/* OBSOLETE   return comm_registers.crreg.r4[num]; */
494
/* OBSOLETE } */
495
/* OBSOLETE  */
496
/* OBSOLETE /* Store a new value VAL into communication register NUM.   */
497
/* OBSOLETE    NB: Must use read-modify-write on the whole comm register set */
498
/* OBSOLETE    since pattach does not do offsetted writes correctly.  *x/ */
499
/* OBSOLETE  */
500
/* OBSOLETE static void */
501
/* OBSOLETE write_comm_register (num, val) */
502
/* OBSOLETE      int num; */
503
/* OBSOLETE      ULONGEST val; */
504
/* OBSOLETE { */
505
/* OBSOLETE   if (have_inferior_p ()) */
506
/* OBSOLETE     { */
507
/* OBSOLETE       ps.pi_buffer = (char *) &comm_registers; */
508
/* OBSOLETE       ps.pi_nbytes = sizeof comm_registers; */
509
/* OBSOLETE       ps.pi_offset = 0; */
510
/* OBSOLETE       ps.pi_thread = inferior_thread; */
511
/* OBSOLETE       ioctl (inferior_fd, PIXRDCREGS, &ps); */
512
/* OBSOLETE       comm_registers.crreg.r4[num] = val; */
513
/* OBSOLETE       ioctl (inferior_fd, PIXWRCREGS, &ps); */
514
/* OBSOLETE     } */
515
/* OBSOLETE } */
516
/* OBSOLETE  */
517
/* OBSOLETE /* Resume execution of the inferior process. */
518
/* OBSOLETE    If STEP is nonzero, single-step it. */
519
/* OBSOLETE    If SIGNAL is nonzero, give it that signal.  *x/ */
520
/* OBSOLETE  */
521
/* OBSOLETE void */
522
/* OBSOLETE resume (step, signal) */
523
/* OBSOLETE      int step; */
524
/* OBSOLETE      int signal; */
525
/* OBSOLETE { */
526
/* OBSOLETE   errno = 0; */
527
/* OBSOLETE   if (step || signal) */
528
/* OBSOLETE     thread_continue (inferior_thread, step, signal); */
529
/* OBSOLETE   else */
530
/* OBSOLETE     thread_continue (-1, 0, 0); */
531
/* OBSOLETE } */
532
/* OBSOLETE  */
533
/* OBSOLETE /* Maybe resume some threads. */
534
/* OBSOLETE    THREAD is which thread to resume, or -1 to resume them all. */
535
/* OBSOLETE    STEP and SIGNAL are as in resume. */
536
/* OBSOLETE  */
537
/* OBSOLETE    Global variable ALL_CONTINUE is set when we are here to do a */
538
/* OBSOLETE    `cont' command; otherwise we may be doing `finish' or a call or */
539
/* OBSOLETE    something else that will not tolerate an automatic thread switch. */
540
/* OBSOLETE  */
541
/* OBSOLETE    If there are stopped threads waiting to deliver signals, and */
542
/* OBSOLETE    ALL_CONTINUE, do not actually resume anything.  gdb will do a wait */
543
/* OBSOLETE    and see one of the stopped threads in the queue.  *x/ */
544
/* OBSOLETE  */
545
/* OBSOLETE static void */
546
/* OBSOLETE thread_continue (thread, step, signal) */
547
/* OBSOLETE      int thread, step, signal; */
548
/* OBSOLETE { */
549
/* OBSOLETE   int n; */
550
/* OBSOLETE  */
551
/* OBSOLETE   /* If we are to continue all threads, but not for the CONTINUE command, */
552
/* OBSOLETE      pay no attention and continue only the selected thread.  *x/ */
553
/* OBSOLETE  */
554
/* OBSOLETE   if (thread < 0 && ! all_continue) */
555
/* OBSOLETE     thread = inferior_thread; */
556
/* OBSOLETE  */
557
/* OBSOLETE   /* If we are not stepping, we have now executed the continue part */
558
/* OBSOLETE      of a CONTINUE command.  *x/ */
559
/* OBSOLETE  */
560
/* OBSOLETE   if (! step) */
561
/* OBSOLETE     all_continue = 0; */
562
/* OBSOLETE  */
563
/* OBSOLETE   /* Allow wait() to switch threads if this is an all-out continue.  *x/ */
564
/* OBSOLETE  */
565
/* OBSOLETE   thread_switch_ok = thread < 0; */
566
/* OBSOLETE  */
567
/* OBSOLETE   /* If there are threads queued up, don't resume.  *x/ */
568
/* OBSOLETE  */
569
/* OBSOLETE   if (thread_switch_ok && ! signal_stack_is_empty ()) */
570
/* OBSOLETE     return; */
571
/* OBSOLETE  */
572
/* OBSOLETE   /* OK, do it.  *x/ */
573
/* OBSOLETE  */
574
/* OBSOLETE   for (n = 0; n < n_threads; n++) */
575
/* OBSOLETE     if (thread_state[n] == PI_TALIVE) */
576
/* OBSOLETE       { */
577
/* OBSOLETE     select_thread (n); */
578
/* OBSOLETE  */
579
/* OBSOLETE     if ((thread < 0 || n == thread) && ! thread_is_in_kernel[n]) */
580
/* OBSOLETE       { */
581
/* OBSOLETE         /* Blam the trace bits in the stack's saved psws to match  */
582
/* OBSOLETE            the desired step mode.  This is required so that */
583
/* OBSOLETE            single-stepping a return doesn't restore a psw with a */
584
/* OBSOLETE            clear trace bit and fly away, and conversely, */
585
/* OBSOLETE            proceeding through a return in a routine that was */
586
/* OBSOLETE            stepped into doesn't cause a phantom break by restoring */
587
/* OBSOLETE            a psw with the trace bit set. *x/ */
588
/* OBSOLETE         scan_stack (PSW_T_BIT, step); */
589
/* OBSOLETE         scan_stack (PSW_S_BIT, sequential); */
590
/* OBSOLETE       } */
591
/* OBSOLETE  */
592
/* OBSOLETE     ps.pi_buffer = registers; */
593
/* OBSOLETE     ps.pi_nbytes = REGISTER_BYTES; */
594
/* OBSOLETE     ps.pi_offset = 0; */
595
/* OBSOLETE     ps.pi_thread = n; */
596
/* OBSOLETE     if (! thread_is_in_kernel[n]) */
597
/* OBSOLETE       if (ioctl (inferior_fd, PIXWRREGS, &ps)) */
598
/* OBSOLETE         perror_with_name ("PIXWRREGS"); */
599
/* OBSOLETE  */
600
/* OBSOLETE     if (thread < 0 || n == thread) */
601
/* OBSOLETE       { */
602
/* OBSOLETE         ps.pi_pc = 1; */
603
/* OBSOLETE         ps.pi_signo = signal; */
604
/* OBSOLETE         if (ioctl (inferior_fd, step ? PIXSTEP : PIXCONTINUE, &ps) < 0) */
605
/* OBSOLETE           perror_with_name ("PIXCONTINUE"); */
606
/* OBSOLETE       } */
607
/* OBSOLETE       } */
608
/* OBSOLETE  */
609
/* OBSOLETE   if (ioctl (inferior_fd, PIXRUN, &ps) < 0) */
610
/* OBSOLETE     perror_with_name ("PIXRUN"); */
611
/* OBSOLETE } */
612
/* OBSOLETE  */
613
/* OBSOLETE /* Replacement for system wait routine.   */
614
/* OBSOLETE  */
615
/* OBSOLETE    The system wait returns with one or more threads stopped by */
616
/* OBSOLETE    signals.  Put stopped threads on a stack and return them one by */
617
/* OBSOLETE    one, so that it appears that wait returns one thread at a time. */
618
/* OBSOLETE  */
619
/* OBSOLETE    Global variable THREAD_SWITCH_OK is set when gdb can tolerate wait */
620
/* OBSOLETE    returning a new thread.  If it is false, then only one thread is */
621
/* OBSOLETE    running; we will do a real wait, the thread will do something, and */
622
/* OBSOLETE    we will return that.  *x/ */
623
/* OBSOLETE  */
624
/* OBSOLETE pid_t */
625
/* OBSOLETE wait (w) */
626
/* OBSOLETE     union wait *w; */
627
/* OBSOLETE { */
628
/* OBSOLETE   int pid; */
629
/* OBSOLETE  */
630
/* OBSOLETE   if (!w) */
631
/* OBSOLETE     return wait3 (0, 0, 0); */
632
/* OBSOLETE  */
633
/* OBSOLETE   /* Do a real wait if we were told to, or if there are no queued threads.  *x/ */
634
/* OBSOLETE  */
635
/* OBSOLETE   if (! thread_switch_ok || signal_stack_is_empty ()) */
636
/* OBSOLETE     { */
637
/* OBSOLETE       int thread; */
638
/* OBSOLETE  */
639
/* OBSOLETE       pid = wait3 (w, 0, 0); */
640
/* OBSOLETE  */
641
/* OBSOLETE       if (!WIFSTOPPED (*w) || pid != inferior_pid) */
642
/* OBSOLETE     return pid; */
643
/* OBSOLETE  */
644
/* OBSOLETE       /* The inferior has done something and stopped.  Read in all the */
645
/* OBSOLETE      threads' registers, and queue up any signals that happened.  *x/ */
646
/* OBSOLETE  */
647
/* OBSOLETE       if (ioctl (inferior_fd, PIXGETTHCOUNT, &ps) < 0) */
648
/* OBSOLETE     perror_with_name ("PIXGETTHCOUNT"); */
649
/* OBSOLETE        */
650
/* OBSOLETE       n_threads = ps.pi_othdcnt; */
651
/* OBSOLETE       for (thread = 0; thread < n_threads; thread++) */
652
/* OBSOLETE     { */
653
/* OBSOLETE       ps.pi_thread = thread; */
654
/* OBSOLETE       if (ioctl (inferior_fd, PIXGETSUBCODE, &ps) < 0) */
655
/* OBSOLETE         perror_with_name ("PIXGETSUBCODE"); */
656
/* OBSOLETE       thread_state[thread] = ps.pi_otstate; */
657
/* OBSOLETE  */
658
/* OBSOLETE       if (ps.pi_otstate == PI_TALIVE) */
659
/* OBSOLETE         { */
660
/* OBSOLETE           select_thread (thread); */
661
/* OBSOLETE           ps.pi_buffer = registers; */
662
/* OBSOLETE           ps.pi_nbytes = REGISTER_BYTES; */
663
/* OBSOLETE           ps.pi_offset = 0; */
664
/* OBSOLETE           ps.pi_thread = thread; */
665
/* OBSOLETE           if (ioctl (inferior_fd, PIXRDREGS, &ps) < 0) */
666
/* OBSOLETE             perror_with_name ("PIXRDREGS"); */
667
/* OBSOLETE  */
668
/* OBSOLETE           registers_fetched (); */
669
/* OBSOLETE  */
670
/* OBSOLETE           thread_pc[thread] = read_pc (); */
671
/* OBSOLETE           thread_signal[thread] = ps.pi_osigno; */
672
/* OBSOLETE           thread_sigcode[thread] = ps.pi_osigcode; */
673
/* OBSOLETE  */
674
/* OBSOLETE           /* If the thread's stack has a context frame */
675
/* OBSOLETE              on top, something fucked is going on.  I do not */
676
/* OBSOLETE              know what, but do I know this: the only thing you */
677
/* OBSOLETE              can do with such a thread is continue it.  *x/ */
678
/* OBSOLETE  */
679
/* OBSOLETE           thread_is_in_kernel[thread] =  */
680
/* OBSOLETE             ((read_register (PS_REGNUM) >> 25) & 3) == 0; */
681
/* OBSOLETE  */
682
/* OBSOLETE           /* Signals push an extended frame and then fault */
683
/* OBSOLETE              with a ridiculous pc.  Pop the frame.  *x/ */
684
/* OBSOLETE  */
685
/* OBSOLETE           if (thread_pc[thread] > STACK_END_ADDR) */
686
/* OBSOLETE             { */
687
/* OBSOLETE               POP_FRAME; */
688
/* OBSOLETE               if (is_break_pc (thread_pc[thread])) */
689
/* OBSOLETE                 thread_pc[thread] = read_pc () - 2; */
690
/* OBSOLETE               else */
691
/* OBSOLETE                 thread_pc[thread] = read_pc (); */
692
/* OBSOLETE               write_register (PC_REGNUM, thread_pc[thread]); */
693
/* OBSOLETE             } */
694
/* OBSOLETE            */
695
/* OBSOLETE           if (ps.pi_osigno || ps.pi_osigcode) */
696
/* OBSOLETE             { */
697
/* OBSOLETE               signal_stack++; */
698
/* OBSOLETE               signal_stack->pid = pid; */
699
/* OBSOLETE               signal_stack->thread = thread; */
700
/* OBSOLETE               signal_stack->signo = thread_signal[thread]; */
701
/* OBSOLETE               signal_stack->subsig = thread_sigcode[thread]; */
702
/* OBSOLETE               signal_stack->pc = thread_pc[thread]; */
703
/* OBSOLETE             } */
704
/* OBSOLETE  */
705
/* OBSOLETE           /* The following hackery is caused by a unix 7.1 feature: */
706
/* OBSOLETE              the inferior's fixed scheduling mode is cleared when */
707
/* OBSOLETE              it execs the shell (since the shell is not a parallel */
708
/* OBSOLETE              program).  So, note the 5.4 trap we get when */
709
/* OBSOLETE              the shell does its exec, then catch the 5.0 trap  */
710
/* OBSOLETE              that occurs when the debuggee starts, and set fixed */
711
/* OBSOLETE              scheduling mode properly.  *x/ */
712
/* OBSOLETE  */
713
/* OBSOLETE           if (ps.pi_osigno == 5 && ps.pi_osigcode == 4) */
714
/* OBSOLETE             exec_trap_timer = 1; */
715
/* OBSOLETE           else */
716
/* OBSOLETE             exec_trap_timer--; */
717
/* OBSOLETE            */
718
/* OBSOLETE           if (ps.pi_osigno == 5 && exec_trap_timer == 0) */
719
/* OBSOLETE             set_fixed_scheduling (pid, parallel == 2); */
720
/* OBSOLETE         } */
721
/* OBSOLETE     } */
722
/* OBSOLETE  */
723
/* OBSOLETE       if (signal_stack_is_empty ()) */
724
/* OBSOLETE     error ("no active threads?!"); */
725
/* OBSOLETE     } */
726
/* OBSOLETE  */
727
/* OBSOLETE   /* Select the thread that stopped, and return *w saying why.  *x/ */
728
/* OBSOLETE  */
729
/* OBSOLETE   select_thread (signal_stack->thread); */
730
/* OBSOLETE  */
731
/* OBSOLETE  FIXME: need to convert from host sig. */
732
/* OBSOLETE   stop_signal = signal_stack->signo; */
733
/* OBSOLETE   stop_sigcode = signal_stack->subsig; */
734
/* OBSOLETE  */
735
/* OBSOLETE   WSETSTOP (*w, signal_stack->signo); */
736
/* OBSOLETE   w->w_thread = signal_stack->thread; */
737
/* OBSOLETE   return (signal_stack--)->pid; */
738
/* OBSOLETE } */
739
/* OBSOLETE  */
740
/* OBSOLETE /* Select thread THREAD -- its registers, stack, per-thread memory. */
741
/* OBSOLETE    This is the only routine that may assign to inferior_thread */
742
/* OBSOLETE    or thread_regs[].  *x/ */
743
/* OBSOLETE  */
744
/* OBSOLETE static void */
745
/* OBSOLETE select_thread (thread) */
746
/* OBSOLETE      int thread; */
747
/* OBSOLETE { */
748
/* OBSOLETE   if (thread == inferior_thread) */
749
/* OBSOLETE     return; */
750
/* OBSOLETE  */
751
/* OBSOLETE   memcpy (thread_regs[inferior_thread], registers, REGISTER_BYTES); */
752
/* OBSOLETE   ps.pi_thread = inferior_thread = thread; */
753
/* OBSOLETE   if (have_inferior_p ()) */
754
/* OBSOLETE     ioctl (inferior_fd, PISETRWTID, &ps); */
755
/* OBSOLETE   memcpy (registers, thread_regs[thread], REGISTER_BYTES); */
756
/* OBSOLETE } */
757
/* OBSOLETE    */
758
/* OBSOLETE /* Routine to set or clear a psw bit in the psw and also all psws */
759
/* OBSOLETE    saved on the stack.  Quits when we get to a frame in which the */
760
/* OBSOLETE    saved psw is correct. *x/ */
761
/* OBSOLETE  */
762
/* OBSOLETE static void */
763
/* OBSOLETE scan_stack (bit, val) */
764
/* OBSOLETE     long bit, val; */
765
/* OBSOLETE { */
766
/* OBSOLETE   long ps = read_register (PS_REGNUM); */
767
/* OBSOLETE   long fp; */
768
/* OBSOLETE   if (val ? !(ps & bit) : (ps & bit)) */
769
/* OBSOLETE     {     */
770
/* OBSOLETE       ps ^= bit; */
771
/* OBSOLETE       write_register (PS_REGNUM, ps); */
772
/* OBSOLETE  */
773
/* OBSOLETE       fp = read_register (FP_REGNUM); */
774
/* OBSOLETE       while (fp & 0x80000000) */
775
/* OBSOLETE     { */
776
/* OBSOLETE       ps = read_memory_integer (fp + 4, 4); */
777
/* OBSOLETE       if (val ? (ps & bit) : !(ps & bit)) */
778
/* OBSOLETE         break; */
779
/* OBSOLETE       ps ^= bit; */
780
/* OBSOLETE       write_memory (fp + 4, &ps, 4); */
781
/* OBSOLETE       fp = read_memory_integer (fp + 8, 4); */
782
/* OBSOLETE     } */
783
/* OBSOLETE     } */
784
/* OBSOLETE } */
785
/* OBSOLETE  */
786
/* OBSOLETE /* Set fixed scheduling (alliant mode) of process PID to ARG (0 or 1).  *x/ */
787
/* OBSOLETE  */
788
/* OBSOLETE static void */
789
/* OBSOLETE set_fixed_scheduling (pid, arg) */
790
/* OBSOLETE       int arg; */
791
/* OBSOLETE { */
792
/* OBSOLETE   struct pattributes pattr; */
793
/* OBSOLETE   getpattr (pid, &pattr); */
794
/* OBSOLETE   pattr.pattr_pfixed = arg; */
795
/* OBSOLETE   setpattr (pid, &pattr); */
796
/* OBSOLETE } */
797
/* OBSOLETE  */
798
/* OBSOLETE void */
799
/* OBSOLETE core_file_command (filename, from_tty) */
800
/* OBSOLETE      char *filename; */
801
/* OBSOLETE      int from_tty; */
802
/* OBSOLETE { */
803
/* OBSOLETE   int n; */
804
/* OBSOLETE  */
805
/* OBSOLETE   /* Discard all vestiges of any previous core file */
806
/* OBSOLETE      and mark data and stack spaces as empty.  *x/ */
807
/* OBSOLETE  */
808
/* OBSOLETE   if (corefile) */
809
/* OBSOLETE     free (corefile); */
810
/* OBSOLETE   corefile = 0; */
811
/* OBSOLETE  */
812
/* OBSOLETE   if (corechan >= 0) */
813
/* OBSOLETE     close (corechan); */
814
/* OBSOLETE   corechan = -1; */
815
/* OBSOLETE  */
816
/* OBSOLETE   data_start = 0; */
817
/* OBSOLETE   data_end = 0; */
818
/* OBSOLETE   stack_start = STACK_END_ADDR; */
819
/* OBSOLETE   stack_end = STACK_END_ADDR; */
820
/* OBSOLETE   n_core = 0; */
821
/* OBSOLETE  */
822
/* OBSOLETE   /* Now, if a new core file was specified, open it and digest it.  *x/ */
823
/* OBSOLETE  */
824
/* OBSOLETE   if (filename) */
825
/* OBSOLETE     { */
826
/* OBSOLETE       filename = tilde_expand (filename); */
827
/* OBSOLETE       make_cleanup (free, filename); */
828
/* OBSOLETE        */
829
/* OBSOLETE       if (have_inferior_p ()) */
830
/* OBSOLETE     error ("To look at a core file, you must kill the program with \"kill\"."); */
831
/* OBSOLETE       corechan = open (filename, O_RDONLY, 0); */
832
/* OBSOLETE       if (corechan < 0) */
833
/* OBSOLETE     perror_with_name (filename); */
834
/* OBSOLETE  */
835
/* OBSOLETE       if (myread (corechan, &filehdr, sizeof filehdr) < 0) */
836
/* OBSOLETE     perror_with_name (filename); */
837
/* OBSOLETE  */
838
/* OBSOLETE       if (!IS_CORE_SOFF_MAGIC (filehdr.h_magic)) */
839
/* OBSOLETE     error ("%s: not a core file.\n", filename); */
840
/* OBSOLETE  */
841
/* OBSOLETE       if (myread (corechan, &opthdr, filehdr.h_opthdr) < 0) */
842
/* OBSOLETE     perror_with_name (filename); */
843
/* OBSOLETE  */
844
/* OBSOLETE       /* Read through the section headers. */
845
/* OBSOLETE      For text, data, etc, record an entry in the core file map. */
846
/* OBSOLETE      For context and tcontext, record the file address of */
847
/* OBSOLETE      the context blocks.  *x/ */
848
/* OBSOLETE  */
849
/* OBSOLETE       lseek (corechan, (long) filehdr.h_scnptr, 0); */
850
/* OBSOLETE  */
851
/* OBSOLETE       n_threads = 0; */
852
/* OBSOLETE       for (n = 0; n < filehdr.h_nscns; n++) */
853
/* OBSOLETE     { */
854
/* OBSOLETE       if (myread (corechan, &scnhdr, sizeof scnhdr) < 0) */
855
/* OBSOLETE         perror_with_name (filename); */
856
/* OBSOLETE       if ((scnhdr.s_flags & S_TYPMASK) >= S_TEXT */
857
/* OBSOLETE           && (scnhdr.s_flags & S_TYPMASK) <= S_COMON) */
858
/* OBSOLETE         { */
859
/* OBSOLETE           core_map[n_core].mem_addr = scnhdr.s_vaddr; */
860
/* OBSOLETE           core_map[n_core].mem_end = scnhdr.s_vaddr + scnhdr.s_size; */
861
/* OBSOLETE           core_map[n_core].file_addr = scnhdr.s_scnptr; */
862
/* OBSOLETE           core_map[n_core].type = scnhdr.s_flags & S_TYPMASK; */
863
/* OBSOLETE           if (core_map[n_core].type != S_TBSS */
864
/* OBSOLETE               && core_map[n_core].type != S_TDATA */
865
/* OBSOLETE               && core_map[n_core].type != S_TTEXT) */
866
/* OBSOLETE             core_map[n_core].thread = -1; */
867
/* OBSOLETE           else if (n_core == 0 */
868
/* OBSOLETE                    || core_map[n_core-1].mem_addr != scnhdr.s_vaddr) */
869
/* OBSOLETE             core_map[n_core].thread = 0; */
870
/* OBSOLETE           else  */
871
/* OBSOLETE             core_map[n_core].thread = core_map[n_core-1].thread + 1; */
872
/* OBSOLETE           n_core++; */
873
/* OBSOLETE         } */
874
/* OBSOLETE       else if ((scnhdr.s_flags & S_TYPMASK) == S_CONTEXT) */
875
/* OBSOLETE         context_offset = scnhdr.s_scnptr; */
876
/* OBSOLETE       else if ((scnhdr.s_flags & S_TYPMASK) == S_TCONTEXT)  */
877
/* OBSOLETE         tcontext_offset[n_threads++] = scnhdr.s_scnptr; */
878
/* OBSOLETE     } */
879
/* OBSOLETE  */
880
/* OBSOLETE       /* Read the context block, struct user, struct proc, */
881
/* OBSOLETE      and the comm regs.  *x/ */
882
/* OBSOLETE  */
883
/* OBSOLETE       lseek (corechan, context_offset, 0); */
884
/* OBSOLETE       if (myread (corechan, &c, sizeof c) < 0) */
885
/* OBSOLETE     perror_with_name (filename); */
886
/* OBSOLETE       lseek (corechan, c.core_user_p, 0); */
887
/* OBSOLETE       if (myread (corechan, &u, sizeof u) < 0) */
888
/* OBSOLETE     perror_with_name (filename); */
889
/* OBSOLETE       lseek (corechan, c.core_proc_p, 0); */
890
/* OBSOLETE       if (myread (corechan, &pr, sizeof pr) < 0) */
891
/* OBSOLETE     perror_with_name (filename); */
892
/* OBSOLETE       comm_registers = pr.p_creg; */
893
/* OBSOLETE  */
894
/* OBSOLETE       /* Core file apparently is really there.  Make it really exist */
895
/* OBSOLETE      for xfer_core_file so we can do read_memory on it. *x/ */
896
/* OBSOLETE  */
897
/* OBSOLETE       if (filename[0] == '/') */
898
/* OBSOLETE     corefile = savestring (filename, strlen (filename)); */
899
/* OBSOLETE       else */
900
/* OBSOLETE     corefile = concat (current_directory, "/", filename, NULL); */
901
/* OBSOLETE  */
902
/* OBSOLETE       printf_filtered ("Program %s ", u.u_comm); */
903
/* OBSOLETE  */
904
/* OBSOLETE       /* Read the thread registers and fill in the thread_xxx[] data.  *x/ */
905
/* OBSOLETE  */
906
/* OBSOLETE       for (n = 0; n < n_threads; n++) */
907
/* OBSOLETE     { */
908
/* OBSOLETE       select_thread (n); */
909
/* OBSOLETE  */
910
/* OBSOLETE       lseek (corechan, tcontext_offset[n], 0); */
911
/* OBSOLETE       if (myread (corechan, &tc, sizeof tc) < 0) */
912
/* OBSOLETE         perror_with_name (corefile); */
913
/* OBSOLETE       lseek (corechan, tc.core_thread_p, 0); */
914
/* OBSOLETE       if (myread (corechan, &th, sizeof th) < 0) */
915
/* OBSOLETE         perror_with_name (corefile); */
916
/* OBSOLETE  */
917
/* OBSOLETE       lseek (corechan, tc.core_syscall_context_p, 0); */
918
/* OBSOLETE       if (myread (corechan, registers, REGISTER_BYTES) < 0) */
919
/* OBSOLETE         perror_with_name (corefile); */
920
/* OBSOLETE  */
921
/* OBSOLETE       thread_signal[n] = th.t_cursig; */
922
/* OBSOLETE       thread_sigcode[n] = th.t_code; */
923
/* OBSOLETE       thread_state[n] = th.t_state; */
924
/* OBSOLETE       thread_pc[n] = read_pc (); */
925
/* OBSOLETE  */
926
/* OBSOLETE       if (thread_pc[n] > STACK_END_ADDR) */
927
/* OBSOLETE         { */
928
/* OBSOLETE           POP_FRAME; */
929
/* OBSOLETE           if (is_break_pc (thread_pc[n])) */
930
/* OBSOLETE             thread_pc[n] = read_pc () - 2; */
931
/* OBSOLETE           else */
932
/* OBSOLETE             thread_pc[n] = read_pc (); */
933
/* OBSOLETE           write_register (PC_REGNUM, thread_pc[n]); */
934
/* OBSOLETE         } */
935
/* OBSOLETE  */
936
/* OBSOLETE       printf_filtered ("thread %d received signal %d, %s\n", */
937
/* OBSOLETE                        n, thread_signal[n], */
938
/* OBSOLETE                        safe_strsignal (thread_signal[n])); */
939
/* OBSOLETE     } */
940
/* OBSOLETE  */
941
/* OBSOLETE       /* Select an interesting thread -- also-rans died with SIGKILL, */
942
/* OBSOLETE      so find one that didn't.  *x/ */
943
/* OBSOLETE  */
944
/* OBSOLETE       for (n = 0; n < n_threads; n++) */
945
/* OBSOLETE     if (thread_signal[n] != 0 && thread_signal[n] != SIGKILL) */
946
/* OBSOLETE       { */
947
/* OBSOLETE         select_thread (n); */
948
/* OBSOLETE         stop_signal = thread_signal[n]; */
949
/* OBSOLETE         stop_sigcode = thread_sigcode[n]; */
950
/* OBSOLETE         break; */
951
/* OBSOLETE       } */
952
/* OBSOLETE  */
953
/* OBSOLETE       core_aouthdr.a_magic = 0; */
954
/* OBSOLETE  */
955
/* OBSOLETE       flush_cached_frames (); */
956
/* OBSOLETE       select_frame (get_current_frame (), 0); */
957
/* OBSOLETE       validate_files (); */
958
/* OBSOLETE  */
959
/* OBSOLETE       print_stack_frame (selected_frame, selected_frame_level, -1); */
960
/* OBSOLETE     } */
961
/* OBSOLETE   else if (from_tty) */
962
/* OBSOLETE     printf_filtered ("No core file now.\n"); */
963
/* OBSOLETE } */

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