1 /* <proc_service.h> implementation.
2 Copyright 1999, 2000 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. */
23 #include "gdb_proc_service.h"
24 #include <sys/procfs.h>
30 /* Prototypes for supply_gregset etc. */
34 /* Fix-up some broken systems. */
36 /* The prototypes in <proc_service.h> are slightly different on older
37 systems. Compensate for the discrepancies. */
39 #ifdef PROC_SERVICE_IS_OLD
40 typedef const struct ps_prochandle
*gdb_ps_prochandle_t
;
41 typedef char *gdb_ps_read_buf_t
;
42 typedef char *gdb_ps_write_buf_t
;
43 typedef int gdb_ps_size_t
;
45 typedef struct ps_prochandle
*gdb_ps_prochandle_t
;
46 typedef void *gdb_ps_read_buf_t
;
47 typedef const void *gdb_ps_write_buf_t
;
48 typedef size_t gdb_ps_size_t
;
52 /* Building process ids. */
54 #define BUILD_LWP(tid, pid) MERGEPID (pid, tid)
57 /* Helper functions. */
59 /* Transfer LEN bytes of memory between BUF and address ADDR in the
60 process specified by PH. If WRITE, transfer them to the process,
61 else transfer them from the process. Returns PS_OK for success,
64 This is a helper function for ps_pdread, ps_pdwrite, ps_ptread and
68 ps_xfer_memory (const struct ps_prochandle
*ph
, paddr_t addr
,
69 char *buf
, size_t len
, int write
)
71 struct cleanup
*old_chain
= save_inferior_ptid ();
74 inferior_ptid
= pid_to_ptid (ph
->pid
);
77 ret
= target_write_memory (addr
, buf
, len
);
79 ret
= target_read_memory (addr
, buf
, len
);
81 do_cleanups (old_chain
);
83 return (ret
== 0 ? PS_OK
: PS_ERR
);
87 /* Stop the target process PH. */
90 ps_pstop (gdb_ps_prochandle_t ph
)
92 /* The process is always stopped when under control of GDB. */
96 /* Resume the target process PH. */
99 ps_pcontinue (gdb_ps_prochandle_t ph
)
101 /* Pretend we did successfully continue the process. GDB will take
102 care of it later on. */
106 /* Stop the lightweight process LWPID within the target process PH. */
109 ps_lstop (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
111 /* All lightweight processes are stopped when under control of GDB. */
115 /* Resume the lightweight process (LWP) LWPID within the target
119 ps_lcontinue (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
121 /* Pretend we did successfully continue LWPID. GDB will take care
126 /* Get the size of the architecture-dependent extra state registers
127 for LWP LWPID within the target process PH and return it in
131 ps_lgetxregsize (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, int *xregsize
)
133 /* FIXME: Not supported yet. */
137 /* Get the extra state registers of LWP LWPID within the target
138 process PH and store them in XREGSET. */
141 ps_lgetxregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, caddr_t xregset
)
143 /* FIXME: Not supported yet. */
147 /* Set the extra state registers of LWP LWPID within the target
148 process PH from XREGSET. */
151 ps_lsetxregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, caddr_t xregset
)
153 /* FIXME: Not supported yet. */
157 /* Log (additional) diognostic information. */
160 ps_plog (const char *fmt
, ...)
164 va_start (args
, fmt
);
165 vfprintf_filtered (gdb_stderr
, fmt
, args
);
168 /* Search for the symbol named NAME within the object named OBJ within
169 the target process PH. If the symbol is found the address of the
170 symbol is stored in SYM_ADDR. */
173 ps_pglobal_lookup (gdb_ps_prochandle_t ph
, const char *obj
,
174 const char *name
, paddr_t
*sym_addr
)
176 struct minimal_symbol
*ms
;
178 /* FIXME: kettenis/2000-09-03: What should we do with OBJ? */
179 ms
= lookup_minimal_symbol (name
, NULL
, NULL
);
183 *sym_addr
= SYMBOL_VALUE_ADDRESS (ms
);
187 /* Read SIZE bytes from the target process PH at address ADDR and copy
191 ps_pdread (gdb_ps_prochandle_t ph
, paddr_t addr
,
192 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
194 return ps_xfer_memory (ph
, addr
, buf
, size
, 0);
197 /* Write SIZE bytes from BUF into the target process PH at address ADDR. */
200 ps_pdwrite (gdb_ps_prochandle_t ph
, paddr_t addr
,
201 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
203 return ps_xfer_memory (ph
, addr
, (char *) buf
, size
, 1);
206 /* Read SIZE bytes from the target process PH at address ADDR and copy
210 ps_ptread (gdb_ps_prochandle_t ph
, paddr_t addr
,
211 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
213 return ps_xfer_memory (ph
, addr
, buf
, size
, 0);
216 /* Write SIZE bytes from BUF into the target process PH at address ADDR. */
219 ps_ptwrite (gdb_ps_prochandle_t ph
, paddr_t addr
,
220 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
222 return ps_xfer_memory (ph
, addr
, (char *) buf
, size
, 1);
225 /* Get the general registers of LWP LWPID within the target process PH
226 and store them in GREGSET. */
229 ps_lgetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, prgregset_t gregset
)
231 struct cleanup
*old_chain
= save_inferior_ptid ();
233 inferior_ptid
= BUILD_LWP (lwpid
, ph
->pid
);
235 target_fetch_registers (-1);
236 fill_gregset ((gdb_gregset_t
*) gregset
, -1);
238 do_cleanups (old_chain
);
242 /* Set the general registers of LWP LWPID within the target process PH
246 ps_lsetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, const prgregset_t gregset
)
248 struct cleanup
*old_chain
= save_inferior_ptid ();
250 inferior_ptid
= BUILD_LWP (lwpid
, ph
->pid
);
252 /* FIXME: We should really make supply_gregset const-correct. */
253 supply_gregset ((gdb_gregset_t
*) gregset
);
254 target_store_registers (-1);
256 do_cleanups (old_chain
);
260 /* Get the floating-point registers of LWP LWPID within the target
261 process PH and store them in FPREGSET. */
264 ps_lgetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
265 gdb_prfpregset_t
*fpregset
)
267 struct cleanup
*old_chain
= save_inferior_ptid ();
269 inferior_ptid
= BUILD_LWP (lwpid
, ph
->pid
);
271 target_fetch_registers (-1);
272 fill_fpregset ((gdb_fpregset_t
*) fpregset
, -1);
274 do_cleanups (old_chain
);
278 /* Set the floating-point registers of LWP LWPID within the target
279 process PH from FPREGSET. */
282 ps_lsetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
283 const gdb_prfpregset_t
*fpregset
)
285 struct cleanup
*old_chain
= save_inferior_ptid ();
287 inferior_ptid
= BUILD_LWP (lwpid
, ph
->pid
);
289 /* FIXME: We should really make supply_fpregset const-correct. */
290 supply_fpregset ((gdb_fpregset_t
*) fpregset
);
291 target_store_registers (-1);
293 do_cleanups (old_chain
);
297 /* Return overall process id of the target PH.
298 Special for Linux -- not used on Solaris. */
301 ps_getpid (gdb_ps_prochandle_t ph
)
307 _initialize_proc_service (void)
309 /* This function solely exists to make sure this module is linked
310 into the final binary. */
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