1 /* Native-dependent code for ptx 4.0
2 Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 #include <sys/procfs.h>
25 #include <sys/ptrace.h>
26 #include <sys/param.h>
29 /* Given a pointer to a general register set in /proc format (gregset_t *),
30 unpack the register contents and supply them as gdb's idea of the current
34 supply_gregset (gregsetp)
37 supply_register (EAX_REGNUM, (char *) &(*gregsetp)[EAX]);
38 supply_register (EDX_REGNUM, (char *) &(*gregsetp)[EDX]);
39 supply_register (ECX_REGNUM, (char *) &(*gregsetp)[ECX]);
40 supply_register (EBX_REGNUM, (char *) &(*gregsetp)[EBX]);
41 supply_register (ESI_REGNUM, (char *) &(*gregsetp)[ESI]);
42 supply_register (EDI_REGNUM, (char *) &(*gregsetp)[EDI]);
43 supply_register (ESP_REGNUM, (char *) &(*gregsetp)[UESP]);
44 supply_register (EBP_REGNUM, (char *) &(*gregsetp)[EBP]);
45 supply_register (EIP_REGNUM, (char *) &(*gregsetp)[EIP]);
46 supply_register (EFLAGS_REGNUM, (char *) &(*gregsetp)[EFL]);
50 fill_gregset (gregsetp, regno)
56 for (regi = 0; regi < NUM_REGS; regi++)
58 if ((regno == -1) || (regno == regi))
60 (*gregsetp)[regi] = *(greg_t *) & registers[REGISTER_BYTE (regi)];
65 #if defined (FP0_REGNUM)
67 /* Given a pointer to a floating point register set in /proc format
68 (fpregset_t *), unpack the register contents and supply them as gdb's
69 idea of the current floating point register values. */
72 supply_fpregset (fpregsetp)
73 fpregset_t *fpregsetp;
75 supply_fpu_registers ((struct fpusave *) &fpregsetp->fp_reg_set);
76 supply_fpa_registers ((struct fpasave *) &fpregsetp->f_wregs);
79 /* Given a pointer to a floating point register set in /proc format
80 (fpregset_t *), update the register specified by REGNO from gdb's idea
81 of the current floating point register set. If REGNO is -1, update
85 fill_fpregset (fpregsetp, regno)
86 fpregset_t *fpregsetp;
93 /* FIXME: see m68k-tdep.c for an example, for the m68k. */
96 #endif /* defined (FP0_REGNUM) */
99 * This doesn't quite do the same thing as the procfs.c version, but give
100 * it the same name so we don't have to put an ifdef in solib.c.
102 /* this could use elf_interpreter() from elfread.c */
104 proc_iterate_over_mappings (func)
105 int (*func) PARAMS ((int, CORE_ADDR));
107 vaddr_t curseg, memptr;
111 char *interp_content;
112 int interp_fd, funcstat;
114 char buf1[NBPG], buf2[NBPG];
117 * The following is really vile. We can get the name of the
118 * shared library from the exec_bfd, and we can get a list of
119 * each virtual memory segment, but there is no simple way to
120 * find the mapped segment from the shared library (ala
121 * procfs's PIOCOPENMEM). As a pretty nasty kludge, we
122 * compare the virtual memory segment to the contents of the
123 * .interp file. If they match, we assume that we've got the
128 * TODO: for attach, use XPT_OPENT to get the executable, in
129 * case we're attached without knowning the executable's
134 printf ("proc_iter\n");
136 interp_sec = bfd_get_section_by_name (exec_bfd, ".interp");
142 size = bfd_section_size (exec_bfd, interp_sec);
143 interp_content = alloca (size);
144 if (0 == bfd_get_section_contents (exec_bfd, interp_sec,
145 interp_content, (file_ptr) 0, size))
151 printf ("proc_iter: \"%s\"\n", interp_content);
153 interp_fd = open (interp_content, O_RDONLY, 0);
162 rv = ptrace (PT_NEXT_VSEG, inferior_pid, &pv, curseg);
164 printf ("PT_NEXT_VSEG: rv %d errno %d\n", rv, errno);
171 printf ("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n",
172 pv.pv_start, pv.pv_size, pv.pv_prot);
174 curseg = pv.pv_start + pv.pv_size;
176 rv = lseek (interp_fd, 0, SEEK_SET);
183 for (memptr = pv.pv_start; memptr < pv.pv_start + pv.pv_size;
187 printf ("memptr 0x%x\n", memptr);
189 rv = read (interp_fd, buf1, NBPG);
196 rv = ptrace (PT_RDATA_PAGE, inferior_pid, buf2,
204 cmperr = memcmp (buf1, buf2, NBPG);
211 funcstat = (*func) (interp_fd, pv.pv_start);