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 (func
)
98 int (*func
) (int, CORE_ADDR
);
100 vaddr_t curseg
, memptr
;
104 char *interp_content
;
105 int interp_fd
, funcstat
;
107 char buf1
[NBPG
], buf2
[NBPG
];
110 * The following is really vile. We can get the name of the
111 * shared library from the exec_bfd, and we can get a list of
112 * each virtual memory segment, but there is no simple way to
113 * find the mapped segment from the shared library (ala
114 * procfs's PIOCOPENMEM). As a pretty nasty kludge, we
115 * compare the virtual memory segment to the contents of the
116 * .interp file. If they match, we assume that we've got the
121 * TODO: for attach, use XPT_OPENT to get the executable, in
122 * case we're attached without knowning the executable's
127 printf ("proc_iter\n");
129 interp_sec
= bfd_get_section_by_name (exec_bfd
, ".interp");
135 size
= bfd_section_size (exec_bfd
, interp_sec
);
136 interp_content
= alloca (size
);
137 if (0 == bfd_get_section_contents (exec_bfd
, interp_sec
,
138 interp_content
, (file_ptr
) 0, size
))
144 printf ("proc_iter: \"%s\"\n", interp_content
);
146 interp_fd
= open (interp_content
, O_RDONLY
, 0);
155 rv
= ptrace (PT_NEXT_VSEG
, inferior_pid
, &pv
, curseg
);
157 printf ("PT_NEXT_VSEG: rv %d errno %d\n", rv
, errno
);
164 printf ("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n",
165 pv
.pv_start
, pv
.pv_size
, pv
.pv_prot
);
167 curseg
= pv
.pv_start
+ pv
.pv_size
;
169 rv
= lseek (interp_fd
, 0, SEEK_SET
);
176 for (memptr
= pv
.pv_start
; memptr
< pv
.pv_start
+ pv
.pv_size
;
180 printf ("memptr 0x%x\n", memptr
);
182 rv
= read (interp_fd
, buf1
, NBPG
);
189 rv
= ptrace (PT_RDATA_PAGE
, inferior_pid
, buf2
,
197 cmperr
= memcmp (buf1
, buf2
, NBPG
);
204 funcstat
= (*func
) (interp_fd
, pv
.pv_start
);
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