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, Boston, MA 02111-1307, USA. */
23 #include <sys/procfs.h>
24 #include <sys/ptrace.h>
25 #include <sys/param.h>
28 /* Given a pointer to a general register set in /proc format (gregset_t *),
29 unpack the register contents and supply them as gdb's idea of the current
33 supply_gregset (gregsetp
)
36 supply_register(EAX_REGNUM
, (char *)&(*gregsetp
)[EAX
]);
37 supply_register(EDX_REGNUM
, (char *)&(*gregsetp
)[EDX
]);
38 supply_register(ECX_REGNUM
, (char *)&(*gregsetp
)[ECX
]);
39 supply_register(EBX_REGNUM
, (char *)&(*gregsetp
)[EBX
]);
40 supply_register(ESI_REGNUM
, (char *)&(*gregsetp
)[ESI
]);
41 supply_register(EDI_REGNUM
, (char *)&(*gregsetp
)[EDI
]);
42 supply_register(ESP_REGNUM
, (char *)&(*gregsetp
)[UESP
]);
43 supply_register(EBP_REGNUM
, (char *)&(*gregsetp
)[EBP
]);
44 supply_register(EIP_REGNUM
, (char *)&(*gregsetp
)[EIP
]);
45 supply_register(EFLAGS_REGNUM
, (char *)&(*gregsetp
)[EFL
]);
49 fill_gregset (gregsetp
, regno
)
54 extern char registers
[];
56 for (regi
= 0 ; regi
< NUM_REGS
; regi
++)
58 if ((regno
== -1) || (regno
== regi
))
60 (*gregsetp
)[regi
] = *(greg_t
*)®isters
[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
;
92 extern char registers
[];
94 /* FIXME: see m68k-tdep.c for an example, for the m68k. */
97 #endif /* defined (FP0_REGNUM) */
100 * This doesn't quite do the same thing as the procfs.c version, but give
101 * it the same name so we don't have to put an ifdef in solib.c.
103 /* this could use elf_interpreter() from elfread.c */
105 proc_iterate_over_mappings(func
)
106 int (*func
) PARAMS ((int, CORE_ADDR
));
108 vaddr_t curseg
, memptr
;
112 char *interp_content
;
113 int interp_fd
, funcstat
;
115 char buf1
[NBPG
], buf2
[NBPG
];
118 * The following is really vile. We can get the name of the
119 * shared library from the exec_bfd, and we can get a list of
120 * each virtual memory segment, but there is no simple way to
121 * find the mapped segment from the shared library (ala
122 * procfs's PIOCOPENMEM). As a pretty nasty kludge, we
123 * compare the virtual memory segment to the contents of the
124 * .interp file. If they match, we assume that we've got the
129 * TODO: for attach, use XPT_OPENT to get the executable, in
130 * case we're attached without knowning the executable's
135 printf("proc_iter\n");
137 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
)) {
150 printf("proc_iter: \"%s\"\n", interp_content
);
152 interp_fd
= open(interp_content
, O_RDONLY
, 0);
153 if (-1 == interp_fd
) {
159 rv
= ptrace(PT_NEXT_VSEG
, inferior_pid
, &pv
, curseg
);
161 printf("PT_NEXT_VSEG: rv %d errno %d\n", rv
, errno
);
168 printf("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n",
169 pv
.pv_start
, pv
.pv_size
, pv
.pv_prot
);
171 curseg
= pv
.pv_start
+ pv
.pv_size
;
173 rv
= lseek(interp_fd
, 0, SEEK_SET
);
179 for (memptr
= pv
.pv_start
; memptr
< pv
.pv_start
+ pv
.pv_size
;
182 printf("memptr 0x%x\n", memptr
);
184 rv
= read(interp_fd
, buf1
, NBPG
);
190 rv
= ptrace(PT_RDATA_PAGE
, inferior_pid
, buf2
,
197 cmperr
= memcmp(buf1
, buf2
, NBPG
);
203 funcstat
= (*func
)(interp_fd
, pv
.pv_start
);
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