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 (gregsetp
)
40 supply_register (EAX_REGNUM
, (char *) &(*gregsetp
)[EAX
]);
41 supply_register (EDX_REGNUM
, (char *) &(*gregsetp
)[EDX
]);
42 supply_register (ECX_REGNUM
, (char *) &(*gregsetp
)[ECX
]);
43 supply_register (EBX_REGNUM
, (char *) &(*gregsetp
)[EBX
]);
44 supply_register (ESI_REGNUM
, (char *) &(*gregsetp
)[ESI
]);
45 supply_register (EDI_REGNUM
, (char *) &(*gregsetp
)[EDI
]);
46 supply_register (ESP_REGNUM
, (char *) &(*gregsetp
)[UESP
]);
47 supply_register (EBP_REGNUM
, (char *) &(*gregsetp
)[EBP
]);
48 supply_register (EIP_REGNUM
, (char *) &(*gregsetp
)[EIP
]);
49 supply_register (EFLAGS_REGNUM
, (char *) &(*gregsetp
)[EFL
]);
53 fill_gregset (gregsetp
, regno
)
59 for (regi
= 0; regi
< NUM_REGS
; regi
++)
61 if ((regno
== -1) || (regno
== regi
))
63 (*gregsetp
)[regi
] = *(greg_t
*) & registers
[REGISTER_BYTE (regi
)];
68 /* Given a pointer to a floating point register set in /proc format
69 (fpregset_t *), unpack the register contents and supply them as gdb's
70 idea of the current floating point register values. */
73 supply_fpregset (fpregsetp
)
74 fpregset_t
*fpregsetp
;
76 supply_fpu_registers ((struct fpusave
*) &fpregsetp
->fp_reg_set
);
77 supply_fpa_registers ((struct fpasave
*) &fpregsetp
->f_wregs
);
80 /* Given a pointer to a floating point register set in /proc format
81 (fpregset_t *), update the register specified by REGNO from gdb's idea
82 of the current floating point register set. If REGNO is -1, update
86 fill_fpregset (fpregsetp
, regno
)
87 fpregset_t
*fpregsetp
;
94 /* FIXME: see m68k-tdep.c for an example, for the m68k. */
98 * This doesn't quite do the same thing as the procfs.c version, but give
99 * it the same name so we don't have to put an ifdef in solib.c.
101 /* this could use elf_interpreter() from elfread.c */
103 proc_iterate_over_mappings (func
)
104 int (*func
) PARAMS ((int, CORE_ADDR
));
106 vaddr_t curseg
, memptr
;
110 char *interp_content
;
111 int interp_fd
, funcstat
;
113 char buf1
[NBPG
], buf2
[NBPG
];
116 * The following is really vile. We can get the name of the
117 * shared library from the exec_bfd, and we can get a list of
118 * each virtual memory segment, but there is no simple way to
119 * find the mapped segment from the shared library (ala
120 * procfs's PIOCOPENMEM). As a pretty nasty kludge, we
121 * compare the virtual memory segment to the contents of the
122 * .interp file. If they match, we assume that we've got the
127 * TODO: for attach, use XPT_OPENT to get the executable, in
128 * case we're attached without knowning the executable's
133 printf ("proc_iter\n");
135 interp_sec
= bfd_get_section_by_name (exec_bfd
, ".interp");
141 size
= bfd_section_size (exec_bfd
, interp_sec
);
142 interp_content
= alloca (size
);
143 if (0 == bfd_get_section_contents (exec_bfd
, interp_sec
,
144 interp_content
, (file_ptr
) 0, size
))
150 printf ("proc_iter: \"%s\"\n", interp_content
);
152 interp_fd
= open (interp_content
, O_RDONLY
, 0);
161 rv
= ptrace (PT_NEXT_VSEG
, inferior_pid
, &pv
, curseg
);
163 printf ("PT_NEXT_VSEG: rv %d errno %d\n", rv
, errno
);
170 printf ("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n",
171 pv
.pv_start
, pv
.pv_size
, pv
.pv_prot
);
173 curseg
= pv
.pv_start
+ pv
.pv_size
;
175 rv
= lseek (interp_fd
, 0, SEEK_SET
);
182 for (memptr
= pv
.pv_start
; memptr
< pv
.pv_start
+ pv
.pv_size
;
186 printf ("memptr 0x%x\n", memptr
);
188 rv
= read (interp_fd
, buf1
, NBPG
);
195 rv
= ptrace (PT_RDATA_PAGE
, inferior_pid
, buf2
,
203 cmperr
= memcmp (buf1
, buf2
, NBPG
);
210 funcstat
= (*func
) (interp_fd
, pv
.pv_start
);
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