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 /* Prototypes for supply_gregset etc. */
32 /* Given a pointer to a general register set in /proc format (gregset_t *),
33 unpack the register contents and supply them as gdb's idea of the current
37 supply_gregset (gregset_t *gregsetp)
39 supply_register (EAX_REGNUM, (char *) &(*gregsetp)[EAX]);
40 supply_register (EDX_REGNUM, (char *) &(*gregsetp)[EDX]);
41 supply_register (ECX_REGNUM, (char *) &(*gregsetp)[ECX]);
42 supply_register (EBX_REGNUM, (char *) &(*gregsetp)[EBX]);
43 supply_register (ESI_REGNUM, (char *) &(*gregsetp)[ESI]);
44 supply_register (EDI_REGNUM, (char *) &(*gregsetp)[EDI]);
45 supply_register (ESP_REGNUM, (char *) &(*gregsetp)[UESP]);
46 supply_register (EBP_REGNUM, (char *) &(*gregsetp)[EBP]);
47 supply_register (EIP_REGNUM, (char *) &(*gregsetp)[EIP]);
48 supply_register (EFLAGS_REGNUM, (char *) &(*gregsetp)[EFL]);
52 fill_gregset (gregset_t *gregsetp, int 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 /* Given a pointer to a floating point register set in /proc format
66 (fpregset_t *), unpack the register contents and supply them as gdb's
67 idea of the current floating point register values. */
70 supply_fpregset (fpregset_t *fpregsetp)
72 supply_fpu_registers ((struct fpusave *) &fpregsetp->fp_reg_set);
73 supply_fpa_registers ((struct fpasave *) &fpregsetp->f_wregs);
76 /* Given a pointer to a floating point register set in /proc format
77 (fpregset_t *), update the register specified by REGNO from gdb's idea
78 of the current floating point register set. If REGNO is -1, update
82 fill_fpregset (fpregset_t *fpregsetp, int regno)
88 /* FIXME: see m68k-tdep.c for an example, for the m68k. */
92 * This doesn't quite do the same thing as the procfs.c version, but give
93 * it the same name so we don't have to put an ifdef in solib.c.
95 /* this could use elf_interpreter() from elfread.c */
97 proc_iterate_over_mappings (int (*func) (int, CORE_ADDR))
99 vaddr_t curseg, memptr;
103 char *interp_content;
104 int interp_fd, funcstat;
106 char buf1[NBPG], buf2[NBPG];
109 * The following is really vile. We can get the name of the
110 * shared library from the exec_bfd, and we can get a list of
111 * each virtual memory segment, but there is no simple way to
112 * find the mapped segment from the shared library (ala
113 * procfs's PIOCOPENMEM). As a pretty nasty kludge, we
114 * compare the virtual memory segment to the contents of the
115 * .interp file. If they match, we assume that we've got the
120 * TODO: for attach, use XPT_OPENT to get the executable, in
121 * case we're attached without knowning the executable's
126 printf ("proc_iter\n");
128 interp_sec = bfd_get_section_by_name (exec_bfd, ".interp");
134 size = bfd_section_size (exec_bfd, interp_sec);
135 interp_content = alloca (size);
136 if (0 == bfd_get_section_contents (exec_bfd, interp_sec,
137 interp_content, (file_ptr) 0, size))
143 printf ("proc_iter: \"%s\"\n", interp_content);
145 interp_fd = open (interp_content, O_RDONLY, 0);
154 rv = ptrace (PT_NEXT_VSEG, inferior_pid, &pv, curseg);
156 printf ("PT_NEXT_VSEG: rv %d errno %d\n", rv, errno);
163 printf ("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n",
164 pv.pv_start, pv.pv_size, pv.pv_prot);
166 curseg = pv.pv_start + pv.pv_size;
168 rv = lseek (interp_fd, 0, SEEK_SET);
175 for (memptr = pv.pv_start; memptr < pv.pv_start + pv.pv_size;
179 printf ("memptr 0x%x\n", memptr);
181 rv = read (interp_fd, buf1, NBPG);
188 rv = ptrace (PT_RDATA_PAGE, inferior_pid, buf2,
196 cmperr = memcmp (buf1, buf2, NBPG);
203 funcstat = (*func) (interp_fd, pv.pv_start);