1 /* Native-dependent code for ptx 4.0
2 Copyright 1988, 1989, 1991, 1992, 1994, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
26 #include <sys/procfs.h>
27 #include <sys/ptrace.h>
28 #include <sys/param.h>
31 /* Prototypes for supply_gregset etc. */
34 /* Given a pointer to a general register set in /proc format (gregset_t *),
35 unpack the register contents and supply them as gdb's idea of the current
39 supply_gregset (gregset_t *gregsetp)
41 supply_register (EAX_REGNUM, (char *) &(*gregsetp)[EAX]);
42 supply_register (EDX_REGNUM, (char *) &(*gregsetp)[EDX]);
43 supply_register (ECX_REGNUM, (char *) &(*gregsetp)[ECX]);
44 supply_register (EBX_REGNUM, (char *) &(*gregsetp)[EBX]);
45 supply_register (ESI_REGNUM, (char *) &(*gregsetp)[ESI]);
46 supply_register (EDI_REGNUM, (char *) &(*gregsetp)[EDI]);
47 supply_register (ESP_REGNUM, (char *) &(*gregsetp)[UESP]);
48 supply_register (EBP_REGNUM, (char *) &(*gregsetp)[EBP]);
49 supply_register (EIP_REGNUM, (char *) &(*gregsetp)[EIP]);
50 supply_register (EFLAGS_REGNUM, (char *) &(*gregsetp)[EFL]);
54 fill_gregset (gregset_t *gregsetp, int regno)
58 for (regi = 0; regi < NUM_REGS; regi++)
60 if ((regno == -1) || (regno == regi))
62 (*gregsetp)[regi] = *(greg_t *) & registers[REGISTER_BYTE (regi)];
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 (fpregset_t *fpregsetp)
74 supply_fpu_registers ((struct fpusave *) &fpregsetp->fp_reg_set);
75 supply_fpa_registers ((struct fpasave *) &fpregsetp->f_wregs);
78 /* Given a pointer to a floating point register set in /proc format
79 (fpregset_t *), update the register specified by REGNO from gdb's idea
80 of the current floating point register set. If REGNO is -1, update
84 fill_fpregset (fpregset_t *fpregsetp, int regno)
90 /* FIXME: see m68k-tdep.c for an example, for the m68k. */
94 * This doesn't quite do the same thing as the procfs.c version, but give
95 * it the same name so we don't have to put an ifdef in solib.c.
97 /* this could use elf_interpreter() from elfread.c */
99 proc_iterate_over_mappings (int (*func) (int, CORE_ADDR))
101 vaddr_t curseg, memptr;
105 char *interp_content;
106 int interp_fd, funcstat;
108 char buf1[NBPG], buf2[NBPG];
111 * The following is really vile. We can get the name of the
112 * shared library from the exec_bfd, and we can get a list of
113 * each virtual memory segment, but there is no simple way to
114 * find the mapped segment from the shared library (ala
115 * procfs's PIOCOPENMEM). As a pretty nasty kludge, we
116 * compare the virtual memory segment to the contents of the
117 * .interp file. If they match, we assume that we've got the
122 * TODO: for attach, use XPT_OPENT to get the executable, in
123 * case we're attached without knowning the executable's
128 printf ("proc_iter\n");
130 interp_sec = bfd_get_section_by_name (exec_bfd, ".interp");
136 size = bfd_section_size (exec_bfd, interp_sec);
137 interp_content = alloca (size);
138 if (0 == bfd_get_section_contents (exec_bfd, interp_sec,
139 interp_content, (file_ptr) 0, size))
145 printf ("proc_iter: \"%s\"\n", interp_content);
147 interp_fd = open (interp_content, O_RDONLY, 0);
156 rv = ptrace (PT_NEXT_VSEG, PIDGET (inferior_ptid), &pv, curseg);
158 printf ("PT_NEXT_VSEG: rv %d errno %d\n", rv, errno);
165 printf ("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n",
166 pv.pv_start, pv.pv_size, pv.pv_prot);
168 curseg = pv.pv_start + pv.pv_size;
170 rv = lseek (interp_fd, 0, SEEK_SET);
177 for (memptr = pv.pv_start; memptr < pv.pv_start + pv.pv_size;
181 printf ("memptr 0x%x\n", memptr);
183 rv = read (interp_fd, buf1, NBPG);
190 rv = ptrace (PT_RDATA_PAGE, PIDGET (inferior_ptid), buf2,
198 cmperr = memcmp (buf1, buf2, NBPG);
205 funcstat = (*func) (interp_fd, pv.pv_start);