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import gdb-1999-12-21 snapshot
[thirdparty/binutils-gdb.git] / gdb / arm-xdep.c
CommitLineData
ed9a39eb
JM		 1/* OBSOLETE /* Acorn Risc Machine host machine support. */
2/* OBSOLETE Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc. */
3/* OBSOLETE */
4/* OBSOLETE This file is part of GDB. */
5/* OBSOLETE */
6/* OBSOLETE This program is free software; you can redistribute it and/or modify */
7/* OBSOLETE it under the terms of the GNU General Public License as published by */
8/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
9/* OBSOLETE (at your option) any later version. */
10/* OBSOLETE */
11/* OBSOLETE This program is distributed in the hope that it will be useful, */
12/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
13/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
14/* OBSOLETE GNU General Public License for more details. */
15/* OBSOLETE */
16/* OBSOLETE You should have received a copy of the GNU General Public License */
17/* OBSOLETE along with this program; if not, write to the Free Software */
18/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
19/* OBSOLETE Boston, MA 02111-1307, USA. *x/ */
20/* OBSOLETE */
21/* OBSOLETE #include "defs.h" */
22/* OBSOLETE #include "frame.h" */
23/* OBSOLETE #include "inferior.h" */
24/* OBSOLETE #include "opcode/arm.h" */
25/* OBSOLETE */
26/* OBSOLETE #include <sys/param.h> */
27/* OBSOLETE #include <sys/dir.h> */
28/* OBSOLETE #include <signal.h> */
29/* OBSOLETE #include <sys/ioctl.h> */
30/* OBSOLETE #include <sys/ptrace.h> */
31/* OBSOLETE #include <machine/reg.h> */
32/* OBSOLETE */
33/* OBSOLETE #define N_TXTADDR(hdr) 0x8000 */
34/* OBSOLETE #define N_DATADDR(hdr) (hdr.a_text + 0x8000) */
35/* OBSOLETE */
36/* OBSOLETE #include "gdbcore.h" */
37/* OBSOLETE */
38/* OBSOLETE #include <sys/user.h> /* After a.out.h *x/ */
39/* OBSOLETE #include <sys/file.h> */
40/* OBSOLETE #include "gdb_stat.h" */
41/* OBSOLETE */
42/* OBSOLETE #include <errno.h> */
43/* OBSOLETE */
44/* OBSOLETE void */
45/* OBSOLETE fetch_inferior_registers (regno) */
46/* OBSOLETE int regno; /* Original value discarded *x/ */
47/* OBSOLETE { */
48/* OBSOLETE register unsigned int regaddr; */
49/* OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; */
50/* OBSOLETE register int i; */
51/* OBSOLETE */
52/* OBSOLETE struct user u; */
53/* OBSOLETE unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */
54/* OBSOLETE offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */
55/* OBSOLETE - KERNEL_U_ADDR; */
56/* OBSOLETE */
57/* OBSOLETE registers_fetched (); */
58/* OBSOLETE */
59/* OBSOLETE for (regno = 0; regno < 16; regno++) */
60/* OBSOLETE { */
61/* OBSOLETE regaddr = offset + regno * 4; */
62/* OBSOLETE *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */
63/* OBSOLETE (PTRACE_ARG3_TYPE) regaddr, 0); */
64/* OBSOLETE if (regno == PC_REGNUM) */
65/* OBSOLETE *(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]); */
66/* OBSOLETE supply_register (regno, buf); */
67/* OBSOLETE } */
68/* OBSOLETE *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */
69/* OBSOLETE (PTRACE_ARG3_TYPE) (offset + PC * 4), 0); */
70/* OBSOLETE supply_register (PS_REGNUM, buf); /* set virtual register ps same as pc *x/ */
71/* OBSOLETE */
72/* OBSOLETE /* read the floating point registers *x/ */
73/* OBSOLETE offset = (char *) &u.u_fp_regs - (char *) &u; */
74/* OBSOLETE *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0); */
75/* OBSOLETE supply_register (FPS_REGNUM, buf); */
76/* OBSOLETE for (regno = 16; regno < 24; regno++) */
77/* OBSOLETE { */
78/* OBSOLETE regaddr = offset + 4 + 12 * (regno - 16); */
79/* OBSOLETE for (i = 0; i < 12; i += sizeof (int)) */
80/* OBSOLETE *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid, */
81/* OBSOLETE (PTRACE_ARG3_TYPE) (regaddr + i), 0); */
82/* OBSOLETE supply_register (regno, buf); */
83/* OBSOLETE } */
84/* OBSOLETE } */
85/* OBSOLETE */
86/* OBSOLETE /* Store our register values back into the inferior. */
87/* OBSOLETE If REGNO is -1, do this for all registers. */
88/* OBSOLETE Otherwise, REGNO specifies which register (so we can save time). *x/ */
89/* OBSOLETE */
90/* OBSOLETE void */
91/* OBSOLETE store_inferior_registers (regno) */
92/* OBSOLETE int regno; */
93/* OBSOLETE { */
94/* OBSOLETE register unsigned int regaddr; */
95/* OBSOLETE char buf[80]; */
96/* OBSOLETE */
97/* OBSOLETE struct user u; */
98/* OBSOLETE unsigned long value; */
99/* OBSOLETE unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */
100/* OBSOLETE offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */
101/* OBSOLETE - KERNEL_U_ADDR; */
102/* OBSOLETE */
103/* OBSOLETE if (regno >= 0) */
104/* OBSOLETE { */
105/* OBSOLETE if (regno >= 16) */
106/* OBSOLETE return; */
107/* OBSOLETE regaddr = offset + 4 * regno; */
108/* OBSOLETE errno = 0; */
109/* OBSOLETE value = read_register (regno); */
110/* OBSOLETE if (regno == PC_REGNUM) */
111/* OBSOLETE value = SET_PC_PART (read_register (PS_REGNUM), value); */
112/* OBSOLETE ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */
113/* OBSOLETE if (errno != 0) */
114/* OBSOLETE { */
115/* OBSOLETE sprintf (buf, "writing register number %d", regno); */
116/* OBSOLETE perror_with_name (buf); */
117/* OBSOLETE } */
118/* OBSOLETE } */
119/* OBSOLETE else */
120/* OBSOLETE for (regno = 0; regno < 15; regno++) */
121/* OBSOLETE { */
122/* OBSOLETE regaddr = offset + regno * 4; */
123/* OBSOLETE errno = 0; */
124/* OBSOLETE value = read_register (regno); */
125/* OBSOLETE if (regno == PC_REGNUM) */
126/* OBSOLETE value = SET_PC_PART (read_register (PS_REGNUM), value); */
127/* OBSOLETE ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */
128/* OBSOLETE if (errno != 0) */
129/* OBSOLETE { */
130/* OBSOLETE sprintf (buf, "writing all regs, number %d", regno); */
131/* OBSOLETE perror_with_name (buf); */
132/* OBSOLETE } */
133/* OBSOLETE } */
134/* OBSOLETE } */
135/* OBSOLETE \f */
136/* OBSOLETE /* Work with core dump and executable files, for GDB. */
137/* OBSOLETE This code would be in corefile.c if it weren't machine-dependent. *x/ */
138/* OBSOLETE */
139/* OBSOLETE /* Structure to describe the chain of shared libraries used */
140/* OBSOLETE by the execfile. */
141/* OBSOLETE e.g. prog shares Xt which shares X11 which shares c. *x/ */
142/* OBSOLETE */
143/* OBSOLETE struct shared_library */
144/* OBSOLETE { */
145/* OBSOLETE struct exec_header header; */
146/* OBSOLETE char name[SHLIBLEN]; */
147/* OBSOLETE CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file *x/ */
148/* OBSOLETE long data_offset; /* offset of data section in file *x/ */
149/* OBSOLETE int chan; /* file descriptor for the file *x/ */
150/* OBSOLETE struct shared_library *shares; /* library this one shares *x/ */
151/* OBSOLETE }; */
152/* OBSOLETE static struct shared_library *shlib = 0; */
153/* OBSOLETE */
154/* OBSOLETE /* Hook for `exec_file_command' command to call. *x/ */
155/* OBSOLETE */
156/* OBSOLETE extern void (*exec_file_display_hook) (); */
157/* OBSOLETE */
158/* OBSOLETE static CORE_ADDR unshared_text_start; */
159/* OBSOLETE */
160/* OBSOLETE /* extended header from exec file (for shared library info) *x/ */
161/* OBSOLETE */
162/* OBSOLETE static struct exec_header exec_header; */
163/* OBSOLETE \f */
164/* OBSOLETE void */
165/* OBSOLETE core_file_command (filename, from_tty) */
166/* OBSOLETE char *filename; */
167/* OBSOLETE int from_tty; */
168/* OBSOLETE { */
169/* OBSOLETE int val; */
170/* OBSOLETE */
171/* OBSOLETE /* Discard all vestiges of any previous core file */
172/* OBSOLETE and mark data and stack spaces as empty. *x/ */
173/* OBSOLETE */
174/* OBSOLETE if (corefile) */
175/* OBSOLETE free (corefile); */
176/* OBSOLETE corefile = 0; */
177/* OBSOLETE */
178/* OBSOLETE if (corechan >= 0) */
179/* OBSOLETE close (corechan); */
180/* OBSOLETE corechan = -1; */
181/* OBSOLETE */
182/* OBSOLETE data_start = 0; */
183/* OBSOLETE data_end = 0; */
184/* OBSOLETE stack_start = STACK_END_ADDR; */
185/* OBSOLETE stack_end = STACK_END_ADDR; */
186/* OBSOLETE */
187/* OBSOLETE /* Now, if a new core file was specified, open it and digest it. *x/ */
188/* OBSOLETE */
189/* OBSOLETE if (filename) */
190/* OBSOLETE { */
191/* OBSOLETE filename = tilde_expand (filename); */
192/* OBSOLETE make_cleanup (free, filename); */
193/* OBSOLETE */
194/* OBSOLETE if (have_inferior_p ()) */
195/* OBSOLETE error ("To look at a core file, you must kill the program with \"kill\"."); */
196/* OBSOLETE corechan = open (filename, O_RDONLY, 0); */
197/* OBSOLETE if (corechan < 0) */
198/* OBSOLETE perror_with_name (filename); */
199/* OBSOLETE /* 4.2-style (and perhaps also sysV-style) core dump file. *x/ */
200/* OBSOLETE { */
201/* OBSOLETE struct user u; */
202/* OBSOLETE */
203/* OBSOLETE unsigned int reg_offset, fp_reg_offset; */
204/* OBSOLETE */
205/* OBSOLETE val = myread (corechan, &u, sizeof u); */
206/* OBSOLETE if (val < 0) */
207/* OBSOLETE perror_with_name ("Not a core file: reading upage"); */
208/* OBSOLETE if (val != sizeof u) */
209/* OBSOLETE error ("Not a core file: could only read %d bytes", val); */
210/* OBSOLETE */
211/* OBSOLETE /* We are depending on exec_file_command having been called */
212/* OBSOLETE previously to set exec_data_start. Since the executable */
213/* OBSOLETE and the core file share the same text segment, the address */
214/* OBSOLETE of the data segment will be the same in both. *x/ */
215/* OBSOLETE data_start = exec_data_start; */
216/* OBSOLETE */
217/* OBSOLETE data_end = data_start + NBPG * u.u_dsize; */
218/* OBSOLETE stack_start = stack_end - NBPG * u.u_ssize; */
219/* OBSOLETE data_offset = NBPG * UPAGES; */
220/* OBSOLETE stack_offset = NBPG * (UPAGES + u.u_dsize); */
221/* OBSOLETE */
222/* OBSOLETE /* Some machines put an absolute address in here and some put */
223/* OBSOLETE the offset in the upage of the regs. *x/ */
224/* OBSOLETE reg_offset = (int) u.u_ar0; */
225/* OBSOLETE if (reg_offset > NBPG * UPAGES) */
226/* OBSOLETE reg_offset -= KERNEL_U_ADDR; */
227/* OBSOLETE fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u; */
228/* OBSOLETE */
229/* OBSOLETE /* I don't know where to find this info. */
230/* OBSOLETE So, for now, mark it as not available. *x/ */
231/* OBSOLETE N_SET_MAGIC (core_aouthdr, 0); */
232/* OBSOLETE */
233/* OBSOLETE /* Read the register values out of the core file and store */
234/* OBSOLETE them where `read_register' will find them. *x/ */
235/* OBSOLETE */
236/* OBSOLETE { */
237/* OBSOLETE register int regno; */
238/* OBSOLETE */
239/* OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) */
240/* OBSOLETE { */
241/* OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; */
242/* OBSOLETE */
243/* OBSOLETE if (regno < 16) */
244/* OBSOLETE val = lseek (corechan, reg_offset + 4 * regno, 0); */
245/* OBSOLETE else if (regno < 24) */
246/* OBSOLETE val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0); */
247/* OBSOLETE else if (regno == 24) */
248/* OBSOLETE val = lseek (corechan, fp_reg_offset, 0); */
249/* OBSOLETE else if (regno == 25) */
250/* OBSOLETE val = lseek (corechan, reg_offset + 4 * PC, 0); */
251/* OBSOLETE if (val < 0 */
252/* OBSOLETE || (val = myread (corechan, buf, sizeof buf)) < 0) */
253/* OBSOLETE { */
254/* OBSOLETE char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) */
255/* OBSOLETE + 30); */
256/* OBSOLETE strcpy (buffer, "Reading register "); */
257/* OBSOLETE strcat (buffer, REGISTER_NAME (regno)); */
258/* OBSOLETE */
259/* OBSOLETE perror_with_name (buffer); */
260/* OBSOLETE } */
261/* OBSOLETE */
262/* OBSOLETE if (regno == PC_REGNUM) */
263/* OBSOLETE *(int *) buf = GET_PC_PART (*(int *) buf); */
264/* OBSOLETE supply_register (regno, buf); */
265/* OBSOLETE } */
266/* OBSOLETE } */
267/* OBSOLETE } */
268/* OBSOLETE if (filename[0] == '/') */
269/* OBSOLETE corefile = savestring (filename, strlen (filename)); */
270/* OBSOLETE else */
271/* OBSOLETE { */
272/* OBSOLETE corefile = concat (current_directory, "/", filename, NULL); */
273/* OBSOLETE } */
274/* OBSOLETE */
275/* OBSOLETE flush_cached_frames (); */
276/* OBSOLETE select_frame (get_current_frame (), 0); */
277/* OBSOLETE validate_files (); */
278/* OBSOLETE } */
279/* OBSOLETE else if (from_tty) */
280/* OBSOLETE printf ("No core file now.\n"); */
281/* OBSOLETE } */
282/* OBSOLETE */
283/* OBSOLETE #if 0 */
284/* OBSOLETE /* Work with core dump and executable files, for GDB. */
285/* OBSOLETE This code would be in corefile.c if it weren't machine-dependent. *x/ */
286/* OBSOLETE */
287/* OBSOLETE /* Structure to describe the chain of shared libraries used */
288/* OBSOLETE by the execfile. */
289/* OBSOLETE e.g. prog shares Xt which shares X11 which shares c. *x/ */
290/* OBSOLETE */
291/* OBSOLETE struct shared_library */
292/* OBSOLETE { */
293/* OBSOLETE struct exec_header header; */
294/* OBSOLETE char name[SHLIBLEN]; */
295/* OBSOLETE CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file *x/ */
296/* OBSOLETE long data_offset; /* offset of data section in file *x/ */
297/* OBSOLETE int chan; /* file descriptor for the file *x/ */
298/* OBSOLETE struct shared_library *shares; /* library this one shares *x/ */
299/* OBSOLETE }; */
300/* OBSOLETE static struct shared_library *shlib = 0; */
301/* OBSOLETE */
302/* OBSOLETE /* Hook for `exec_file_command' command to call. *x/ */
303/* OBSOLETE */
304/* OBSOLETE extern void (*exec_file_display_hook) (); */
305/* OBSOLETE */
306/* OBSOLETE static CORE_ADDR unshared_text_start; */
307/* OBSOLETE */
308/* OBSOLETE /* extended header from exec file (for shared library info) *x/ */
309/* OBSOLETE */
310/* OBSOLETE static struct exec_header exec_header; */
311/* OBSOLETE */
312/* OBSOLETE void */
313/* OBSOLETE exec_file_command (filename, from_tty) */
314/* OBSOLETE char *filename; */
315/* OBSOLETE int from_tty; */
316/* OBSOLETE { */
317/* OBSOLETE int val; */
318/* OBSOLETE */
319/* OBSOLETE /* Eliminate all traces of old exec file. */
320/* OBSOLETE Mark text segment as empty. *x/ */
321/* OBSOLETE */
322/* OBSOLETE if (execfile) */
323/* OBSOLETE free (execfile); */
324/* OBSOLETE execfile = 0; */
325/* OBSOLETE data_start = 0; */
326/* OBSOLETE data_end -= exec_data_start; */
327/* OBSOLETE text_start = 0; */
328/* OBSOLETE unshared_text_start = 0; */
329/* OBSOLETE text_end = 0; */
330/* OBSOLETE exec_data_start = 0; */
331/* OBSOLETE exec_data_end = 0; */
332/* OBSOLETE if (execchan >= 0) */
333/* OBSOLETE close (execchan); */
334/* OBSOLETE execchan = -1; */
335/* OBSOLETE if (shlib) */
336/* OBSOLETE { */
337/* OBSOLETE close_shared_library (shlib); */
338/* OBSOLETE shlib = 0; */
339/* OBSOLETE } */
340/* OBSOLETE */
341/* OBSOLETE /* Now open and digest the file the user requested, if any. *x/ */
342/* OBSOLETE */
343/* OBSOLETE if (filename) */
344/* OBSOLETE { */
345/* OBSOLETE filename = tilde_expand (filename); */
346/* OBSOLETE make_cleanup (free, filename); */
347/* OBSOLETE */
348/* OBSOLETE execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0, */
349/* OBSOLETE &execfile); */
350/* OBSOLETE if (execchan < 0) */
351/* OBSOLETE perror_with_name (filename); */
352/* OBSOLETE */
353/* OBSOLETE { */
354/* OBSOLETE struct stat st_exec; */
355/* OBSOLETE */
356/* OBSOLETE #ifdef HEADER_SEEK_FD */
357/* OBSOLETE HEADER_SEEK_FD (execchan); */
358/* OBSOLETE #endif */
359/* OBSOLETE */
360/* OBSOLETE val = myread (execchan, &exec_header, sizeof exec_header); */
361/* OBSOLETE exec_aouthdr = exec_header.a_exec; */
362/* OBSOLETE */
363/* OBSOLETE if (val < 0) */
364/* OBSOLETE perror_with_name (filename); */
365/* OBSOLETE */
366/* OBSOLETE text_start = 0x8000; */
367/* OBSOLETE */
368/* OBSOLETE /* Look for shared library if needed *x/ */
369/* OBSOLETE if (exec_header.a_exec.a_magic & MF_USES_SL) */
370/* OBSOLETE shlib = open_shared_library (exec_header.a_shlibname, text_start); */
371/* OBSOLETE */
372/* OBSOLETE text_offset = N_TXTOFF (exec_aouthdr); */
373/* OBSOLETE exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text; */
374/* OBSOLETE */
375/* OBSOLETE if (shlib) */
376/* OBSOLETE { */
377/* OBSOLETE unshared_text_start = shared_text_end (shlib) & ~0x7fff; */
378/* OBSOLETE stack_start = shlib->header.a_exec.a_sldatabase; */
379/* OBSOLETE stack_end = STACK_END_ADDR; */
380/* OBSOLETE } */
381/* OBSOLETE else */
382/* OBSOLETE unshared_text_start = 0x8000; */
383/* OBSOLETE text_end = unshared_text_start + exec_aouthdr.a_text; */
384/* OBSOLETE */
385/* OBSOLETE exec_data_start = unshared_text_start + exec_aouthdr.a_text; */
386/* OBSOLETE exec_data_end = exec_data_start + exec_aouthdr.a_data; */
387/* OBSOLETE */
388/* OBSOLETE data_start = exec_data_start; */
389/* OBSOLETE data_end += exec_data_start; */
390/* OBSOLETE */
391/* OBSOLETE fstat (execchan, &st_exec); */
392/* OBSOLETE exec_mtime = st_exec.st_mtime; */
393/* OBSOLETE } */
394/* OBSOLETE */
395/* OBSOLETE validate_files (); */
396/* OBSOLETE } */
397/* OBSOLETE else if (from_tty) */
398/* OBSOLETE printf ("No executable file now.\n"); */
399/* OBSOLETE */
400/* OBSOLETE /* Tell display code (if any) about the changed file name. *x/ */
401/* OBSOLETE if (exec_file_display_hook) */
402/* OBSOLETE (*exec_file_display_hook) (filename); */
403/* OBSOLETE } */
404/* OBSOLETE #endif */
405/* OBSOLETE */
406/* OBSOLETE #if 0 */
407/* OBSOLETE /* Read from the program's memory (except for inferior processes). */
408/* OBSOLETE This function is misnamed, since it only reads, never writes; and */
409/* OBSOLETE since it will use the core file and/or executable file as necessary. */
410/* OBSOLETE */
411/* OBSOLETE It should be extended to write as well as read, FIXME, for patching files. */
412/* OBSOLETE */
413/* OBSOLETE Return 0 if address could be read, EIO if addresss out of bounds. *x/ */
414/* OBSOLETE */
415/* OBSOLETE int */
416/* OBSOLETE xfer_core_file (memaddr, myaddr, len) */
417/* OBSOLETE CORE_ADDR memaddr; */
418/* OBSOLETE char *myaddr; */
419/* OBSOLETE int len; */
420/* OBSOLETE { */
421/* OBSOLETE register int i; */
422/* OBSOLETE register int val; */
423/* OBSOLETE int xferchan; */
424/* OBSOLETE char **xferfile; */
425/* OBSOLETE int fileptr; */
426/* OBSOLETE int returnval = 0; */
427/* OBSOLETE */
428/* OBSOLETE while (len > 0) */
429/* OBSOLETE { */
430/* OBSOLETE xferfile = 0; */
431/* OBSOLETE xferchan = 0; */
432/* OBSOLETE */
433/* OBSOLETE /* Determine which file the next bunch of addresses reside in, */
434/* OBSOLETE and where in the file. Set the file's read/write pointer */
435/* OBSOLETE to point at the proper place for the desired address */
436/* OBSOLETE and set xferfile and xferchan for the correct file. */
437/* OBSOLETE */
438/* OBSOLETE If desired address is nonexistent, leave them zero. */
439/* OBSOLETE */
440/* OBSOLETE i is set to the number of bytes that can be handled */
441/* OBSOLETE along with the next address. */
442/* OBSOLETE */
443/* OBSOLETE We put the most likely tests first for efficiency. *x/ */
444/* OBSOLETE */
445/* OBSOLETE /* Note that if there is no core file */
446/* OBSOLETE data_start and data_end are equal. *x/ */
447/* OBSOLETE if (memaddr >= data_start && memaddr < data_end) */
448/* OBSOLETE { */
449/* OBSOLETE i = min (len, data_end - memaddr); */
450/* OBSOLETE fileptr = memaddr - data_start + data_offset; */
451/* OBSOLETE xferfile = &corefile; */
452/* OBSOLETE xferchan = corechan; */
453/* OBSOLETE } */
454/* OBSOLETE /* Note that if there is no core file */
455/* OBSOLETE stack_start and stack_end define the shared library data. *x/ */
456/* OBSOLETE else if (memaddr >= stack_start && memaddr < stack_end) */
457/* OBSOLETE { */
458/* OBSOLETE if (corechan < 0) */
459/* OBSOLETE { */
460/* OBSOLETE struct shared_library *lib; */
461/* OBSOLETE for (lib = shlib; lib; lib = lib->shares) */
462/* OBSOLETE if (memaddr >= lib->header.a_exec.a_sldatabase && */
463/* OBSOLETE memaddr < lib->header.a_exec.a_sldatabase + */
464/* OBSOLETE lib->header.a_exec.a_data) */
465/* OBSOLETE break; */
466/* OBSOLETE if (lib) */
467/* OBSOLETE { */
468/* OBSOLETE i = min (len, lib->header.a_exec.a_sldatabase + */
469/* OBSOLETE lib->header.a_exec.a_data - memaddr); */
470/* OBSOLETE fileptr = lib->data_offset + memaddr - */
471/* OBSOLETE lib->header.a_exec.a_sldatabase; */
472/* OBSOLETE xferfile = execfile; */
473/* OBSOLETE xferchan = lib->chan; */
474/* OBSOLETE } */
475/* OBSOLETE } */
476/* OBSOLETE else */
477/* OBSOLETE { */
478/* OBSOLETE i = min (len, stack_end - memaddr); */
479/* OBSOLETE fileptr = memaddr - stack_start + stack_offset; */
480/* OBSOLETE xferfile = &corefile; */
481/* OBSOLETE xferchan = corechan; */
482/* OBSOLETE } */
483/* OBSOLETE } */
484/* OBSOLETE else if (corechan < 0 */
485/* OBSOLETE && memaddr >= exec_data_start && memaddr < exec_data_end) */
486/* OBSOLETE { */
487/* OBSOLETE i = min (len, exec_data_end - memaddr); */
488/* OBSOLETE fileptr = memaddr - exec_data_start + exec_data_offset; */
489/* OBSOLETE xferfile = &execfile; */
490/* OBSOLETE xferchan = execchan; */
491/* OBSOLETE } */
492/* OBSOLETE else if (memaddr >= text_start && memaddr < text_end) */
493/* OBSOLETE { */
494/* OBSOLETE struct shared_library *lib; */
495/* OBSOLETE for (lib = shlib; lib; lib = lib->shares) */
496/* OBSOLETE if (memaddr >= lib->text_start && */
497/* OBSOLETE memaddr < lib->text_start + lib->header.a_exec.a_text) */
498/* OBSOLETE break; */
499/* OBSOLETE if (lib) */
500/* OBSOLETE { */
501/* OBSOLETE i = min (len, lib->header.a_exec.a_text + */
502/* OBSOLETE lib->text_start - memaddr); */
503/* OBSOLETE fileptr = memaddr - lib->text_start + text_offset; */
504/* OBSOLETE xferfile = &execfile; */
505/* OBSOLETE xferchan = lib->chan; */
506/* OBSOLETE } */
507/* OBSOLETE else */
508/* OBSOLETE { */
509/* OBSOLETE i = min (len, text_end - memaddr); */
510/* OBSOLETE fileptr = memaddr - unshared_text_start + text_offset; */
511/* OBSOLETE xferfile = &execfile; */
512/* OBSOLETE xferchan = execchan; */
513/* OBSOLETE } */
514/* OBSOLETE } */
515/* OBSOLETE else if (memaddr < text_start) */
516/* OBSOLETE { */
517/* OBSOLETE i = min (len, text_start - memaddr); */
518/* OBSOLETE } */
519/* OBSOLETE else if (memaddr >= text_end */
520/* OBSOLETE && memaddr < (corechan >= 0 ? data_start : exec_data_start)) */
521/* OBSOLETE { */
522/* OBSOLETE i = min (len, data_start - memaddr); */
523/* OBSOLETE } */
524/* OBSOLETE else if (corechan >= 0 */
525/* OBSOLETE && memaddr >= data_end && memaddr < stack_start) */
526/* OBSOLETE { */
527/* OBSOLETE i = min (len, stack_start - memaddr); */
528/* OBSOLETE } */
529/* OBSOLETE else if (corechan < 0 && memaddr >= exec_data_end) */
530/* OBSOLETE { */
531/* OBSOLETE i = min (len, -memaddr); */
532/* OBSOLETE } */
533/* OBSOLETE else if (memaddr >= stack_end && stack_end != 0) */
534/* OBSOLETE { */
535/* OBSOLETE i = min (len, -memaddr); */
536/* OBSOLETE } */
537/* OBSOLETE else */
538/* OBSOLETE { */
539/* OBSOLETE /* Address did not classify into one of the known ranges. */
540/* OBSOLETE This shouldn't happen; we catch the endpoints. *x/ */
541/* OBSOLETE internal_error ("Bad case logic in xfer_core_file."); */
542/* OBSOLETE } */
543/* OBSOLETE */
544/* OBSOLETE /* Now we know which file to use. */
545/* OBSOLETE Set up its pointer and transfer the data. *x/ */
546/* OBSOLETE if (xferfile) */
547/* OBSOLETE { */
548/* OBSOLETE if (*xferfile == 0) */
549/* OBSOLETE if (xferfile == &execfile) */
550/* OBSOLETE error ("No program file to examine."); */
551/* OBSOLETE else */
552/* OBSOLETE error ("No core dump file or running program to examine."); */
553/* OBSOLETE val = lseek (xferchan, fileptr, 0); */
554/* OBSOLETE if (val < 0) */
555/* OBSOLETE perror_with_name (*xferfile); */
556/* OBSOLETE val = myread (xferchan, myaddr, i); */
557/* OBSOLETE if (val < 0) */
558/* OBSOLETE perror_with_name (*xferfile); */
559/* OBSOLETE } */
560/* OBSOLETE /* If this address is for nonexistent memory, */
561/* OBSOLETE read zeros if reading, or do nothing if writing. */
562/* OBSOLETE Actually, we never right. *x/ */
563/* OBSOLETE else */
564/* OBSOLETE { */
565/* OBSOLETE memset (myaddr, '\0', i); */
566/* OBSOLETE returnval = EIO; */
567/* OBSOLETE } */
568/* OBSOLETE */
569/* OBSOLETE memaddr += i; */
570/* OBSOLETE myaddr += i; */
571/* OBSOLETE len -= i; */
572/* OBSOLETE } */
573/* OBSOLETE return returnval; */
574/* OBSOLETE } */
575/* OBSOLETE #endif */
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