diff options
Diffstat (limited to 'gdb/infptrace.c')
| -rw-r--r-- | gdb/infptrace.c | 146 |
1 files changed, 75 insertions, 71 deletions
diff --git a/gdb/infptrace.c b/gdb/infptrace.c index 1db7223ea3b..eec7c6ae833 100644 --- a/gdb/infptrace.c +++ b/gdb/infptrace.c @@ -2,21 +2,22 @@ Copyright 1988, 89, 90, 91, 92, 93, 94, 95, 96, 1998 Free Software Foundation, Inc. -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 "frame.h" @@ -36,11 +37,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <sys/ioctl.h> #ifdef HAVE_PTRACE_H -# include <ptrace.h> +#include <ptrace.h> #else -# ifdef HAVE_SYS_PTRACE_H -# include <sys/ptrace.h> -# endif +#ifdef HAVE_SYS_PTRACE_H +#include <sys/ptrace.h> +#endif #endif #if !defined (PT_READ_I) @@ -107,8 +108,8 @@ static void store_register PARAMS ((int)); void _initialize_kernel_u_addr PARAMS ((void)); void _initialize_infptrace PARAMS ((void)); - + /* This function simply calls ptrace with the given arguments. It exists so that all calls to ptrace are isolated in this machine-dependent file. */ @@ -128,25 +129,27 @@ call_ptrace (request, pid, addr, data) #endif #if defined(PT_SETTRC) /* If the parent can be told to attach to us, try to do it. */ - if (request == PT_SETTRC) { - errno = 0; - pt_status = ptrace (PT_SETTRC, pid, addr, data + if (request == PT_SETTRC) + { + errno = 0; + pt_status = ptrace (PT_SETTRC, pid, addr, data #if defined (FIVE_ARG_PTRACE) - /* Deal with HPUX 8.0 braindamage. We never use the - calls which require the fifth argument. */ - , 0 + /* Deal with HPUX 8.0 braindamage. We never use the + calls which require the fifth argument. */ + ,0 #endif - ); + ); - if (errno) perror_with_name ("ptrace"); + if (errno) + perror_with_name ("ptrace"); #if 0 - printf (" = %d\n", pt_status); + printf (" = %d\n", pt_status); #endif - if (pt_status < 0) - return pt_status; - else - return parent_attach_all (pid, addr, data); - } + if (pt_status < 0) + return pt_status; + else + return parent_attach_all (pid, addr, data); + } #endif #if defined(PT_CONTIN1) @@ -169,11 +172,11 @@ call_ptrace (request, pid, addr, data) #endif pt_status = ptrace (request, pid, addr, data #if defined (FIVE_ARG_PTRACE) - /* Deal with HPUX 8.0 braindamage. We never use the - calls which require the fifth argument. */ - , 0 + /* Deal with HPUX 8.0 braindamage. We never use the + calls which require the fifth argument. */ + ,0 #endif - ); + ); #if 0 if (errno) printf (" [errno = %d]", errno); @@ -196,8 +199,8 @@ call_ptrace (request, pid, addr, data) int ptrace_wait (pid, status) - int pid; - int *status; + int pid; + int *status; { int wstate; @@ -259,9 +262,9 @@ child_resume (pid, step, signal) if (step) { if (SOFTWARE_SINGLE_STEP_P) - abort(); /* Make sure this doesn't happen. */ + abort (); /* Make sure this doesn't happen. */ else - ptrace (PT_STEP, pid, (PTRACE_ARG3_TYPE) 1, + ptrace (PT_STEP, pid, (PTRACE_ARG3_TYPE) 1, target_signal_to_host (signal)); } else @@ -272,8 +275,8 @@ child_resume (pid, step, signal) perror_with_name ("ptrace"); } #endif /* CHILD_RESUME */ - + #ifdef ATTACH_DETACH /* Start debugging the process whose number is PID. */ int @@ -358,9 +361,9 @@ fetch_register (regno) { /* This isn't really an address. But ptrace thinks of it as one. */ CORE_ADDR regaddr; - char mess[128]; /* For messages */ + char mess[128]; /* For messages */ register int i; - unsigned int offset; /* Offset of registers within the u area. */ + unsigned int offset; /* Offset of registers within the u area. */ char buf[MAX_REGISTER_RAW_SIZE]; if (CANNOT_FETCH_REGISTER (regno)) @@ -376,8 +379,8 @@ fetch_register (regno) for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE)) { errno = 0; - *(PTRACE_XFER_TYPE *) &buf[i] = ptrace (PT_READ_U, inferior_pid, - (PTRACE_ARG3_TYPE) regaddr, 0); + *(PTRACE_XFER_TYPE *) & buf[i] = ptrace (PT_READ_U, inferior_pid, + (PTRACE_ARG3_TYPE) regaddr, 0); regaddr += sizeof (PTRACE_XFER_TYPE); if (errno != 0) { @@ -423,9 +426,9 @@ store_register (regno) { /* This isn't really an address. But ptrace thinks of it as one. */ CORE_ADDR regaddr; - char mess[128]; /* For messages */ + char mess[128]; /* For messages */ register int i; - unsigned int offset; /* Offset of registers within the u area. */ + unsigned int offset; /* Offset of registers within the u area. */ if (CANNOT_STORE_REGISTER (regno)) { @@ -435,11 +438,11 @@ store_register (regno) offset = U_REGS_OFFSET; regaddr = register_addr (regno, offset); - for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(PTRACE_XFER_TYPE)) + for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE)) { errno = 0; ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, - *(PTRACE_XFER_TYPE *) ®isters[REGISTER_BYTE (regno) + i]); + *(PTRACE_XFER_TYPE *) & registers[REGISTER_BYTE (regno) + i]); regaddr += sizeof (PTRACE_XFER_TYPE); if (errno != 0) { @@ -482,7 +485,7 @@ store_inferior_registers (regno) /* Copy LEN bytes to or from inferior's memory starting at MEMADDR to debugger memory starting at MYADDR. Copy to inferior if WRITE is nonzero. - + Returns the length copied, which is either the LEN argument or zero. This xfer function does not do partial moves, since child_ops doesn't allow memory operations to cross below us in the target stack @@ -494,28 +497,29 @@ child_xfer_memory (memaddr, myaddr, len, write, target) char *myaddr; int len; int write; - struct target_ops *target; /* ignored */ + struct target_ops *target; /* ignored */ { register int i; /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & - sizeof (PTRACE_XFER_TYPE); + register CORE_ADDR addr = memaddr & -sizeof (PTRACE_XFER_TYPE); /* Round ending address up; get number of longwords that makes. */ register int count - = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) - / sizeof (PTRACE_XFER_TYPE); + = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) + / sizeof (PTRACE_XFER_TYPE); /* Allocate buffer of that many longwords. */ register PTRACE_XFER_TYPE *buffer - = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE)); + = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE)); if (write) { /* Fill start and end extra bytes of buffer with existing memory data. */ - if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE)) { - /* Need part of initial word -- fetch it. */ - buffer[0] = ptrace (PT_READ_I, inferior_pid, (PTRACE_ARG3_TYPE) addr, - 0); - } + if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE)) + { + /* Need part of initial word -- fetch it. */ + buffer[0] = ptrace (PT_READ_I, inferior_pid, (PTRACE_ARG3_TYPE) addr, + 0); + } if (count > 1) /* FIXME, avoid if even boundary */ { @@ -540,9 +544,9 @@ child_xfer_memory (memaddr, myaddr, len, write, target) ptrace (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, buffer[i]); if (errno) - { + { /* Using the appropriate one (I or D) is necessary for - Gould NP1, at least. */ + Gould NP1, at least. */ errno = 0; ptrace (PT_WRITE_I, inferior_pid, (PTRACE_ARG3_TYPE) addr, buffer[i]); @@ -551,7 +555,7 @@ child_xfer_memory (memaddr, myaddr, len, write, target) return 0; } #ifdef CLEAR_INSN_CACHE - CLEAR_INSN_CACHE(); + CLEAR_INSN_CACHE (); #endif } else @@ -574,23 +578,23 @@ child_xfer_memory (memaddr, myaddr, len, write, target) } return len; } - + static void udot_info (dummy1, dummy2) char *dummy1; int dummy2; { #if defined (KERNEL_U_SIZE) - int udot_off; /* Offset into user struct */ - int udot_val; /* Value from user struct at udot_off */ - char mess[128]; /* For messages */ + int udot_off; /* Offset into user struct */ + int udot_val; /* Value from user struct at udot_off */ + char mess[128]; /* For messages */ #endif - if (!target_has_execution) - { - error ("The program is not being run."); - } + if (!target_has_execution) + { + error ("The program is not being run."); + } #if !defined (KERNEL_U_SIZE) @@ -626,8 +630,8 @@ udot_info (dummy1, dummy2) #endif } #endif /* !defined (CHILD_XFER_MEMORY). */ - + void _initialize_infptrace () { |