Commit | Line | Data |
---|---|---|
5769d3cd | 1 | /* S390 native-dependent code for GDB, the GNU debugger. |
618f726f | 2 | Copyright (C) 2001-2016 Free Software Foundation, Inc. |
d0f54f9d | 3 | |
5769d3cd AC |
4 | Contributed by D.J. Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) |
5 | for IBM Deutschland Entwicklung GmbH, IBM Corporation. | |
d0f54f9d | 6 | |
5769d3cd AC |
7 | This file is part of GDB. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
5769d3cd AC |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
5769d3cd AC |
21 | |
22 | #include "defs.h" | |
3ecc0ae2 | 23 | #include "regcache.h" |
d0f54f9d | 24 | #include "inferior.h" |
10d6c8cd DJ |
25 | #include "target.h" |
26 | #include "linux-nat.h" | |
7803799a | 27 | #include "auxv.h" |
5538f557 | 28 | #include "gregset.h" |
99b7da5d | 29 | #include "regset.h" |
ca9b78ce | 30 | #include "nat/linux-ptrace.h" |
169fe0df | 31 | #include "gdbcmd.h" |
d0f54f9d | 32 | |
0e5fae36 | 33 | #include "s390-linux-tdep.h" |
c642a434 | 34 | #include "elf/common.h" |
d0f54f9d | 35 | |
5769d3cd | 36 | #include <asm/ptrace.h> |
5826e159 | 37 | #include "nat/gdb_ptrace.h" |
2d0c7962 | 38 | #include <asm/types.h> |
5769d3cd | 39 | #include <sys/procfs.h> |
5769d3cd | 40 | #include <sys/ucontext.h> |
7803799a UW |
41 | #include <elf.h> |
42 | ||
18396193 AA |
43 | /* Per-thread arch-specific data. */ |
44 | ||
45 | struct arch_lwp_info | |
46 | { | |
47 | /* Non-zero if the thread's PER info must be re-written. */ | |
48 | int per_info_changed; | |
49 | }; | |
50 | ||
c642a434 UW |
51 | static int have_regset_last_break = 0; |
52 | static int have_regset_system_call = 0; | |
4ac33720 | 53 | static int have_regset_tdb = 0; |
550bdf96 | 54 | static int have_regset_vxrs = 0; |
5769d3cd | 55 | |
99b7da5d AA |
56 | /* Register map for 32-bit executables running under a 64-bit |
57 | kernel. */ | |
d0f54f9d JB |
58 | |
59 | #ifdef __s390x__ | |
99b7da5d AA |
60 | static const struct regcache_map_entry s390_64_regmap_gregset[] = |
61 | { | |
62 | /* Skip PSWM and PSWA, since they must be handled specially. */ | |
63 | { 2, REGCACHE_MAP_SKIP, 8 }, | |
64 | { 1, S390_R0_UPPER_REGNUM, 4 }, { 1, S390_R0_REGNUM, 4 }, | |
65 | { 1, S390_R1_UPPER_REGNUM, 4 }, { 1, S390_R1_REGNUM, 4 }, | |
66 | { 1, S390_R2_UPPER_REGNUM, 4 }, { 1, S390_R2_REGNUM, 4 }, | |
67 | { 1, S390_R3_UPPER_REGNUM, 4 }, { 1, S390_R3_REGNUM, 4 }, | |
68 | { 1, S390_R4_UPPER_REGNUM, 4 }, { 1, S390_R4_REGNUM, 4 }, | |
69 | { 1, S390_R5_UPPER_REGNUM, 4 }, { 1, S390_R5_REGNUM, 4 }, | |
70 | { 1, S390_R6_UPPER_REGNUM, 4 }, { 1, S390_R6_REGNUM, 4 }, | |
71 | { 1, S390_R7_UPPER_REGNUM, 4 }, { 1, S390_R7_REGNUM, 4 }, | |
72 | { 1, S390_R8_UPPER_REGNUM, 4 }, { 1, S390_R8_REGNUM, 4 }, | |
73 | { 1, S390_R9_UPPER_REGNUM, 4 }, { 1, S390_R9_REGNUM, 4 }, | |
74 | { 1, S390_R10_UPPER_REGNUM, 4 }, { 1, S390_R10_REGNUM, 4 }, | |
75 | { 1, S390_R11_UPPER_REGNUM, 4 }, { 1, S390_R11_REGNUM, 4 }, | |
76 | { 1, S390_R12_UPPER_REGNUM, 4 }, { 1, S390_R12_REGNUM, 4 }, | |
77 | { 1, S390_R13_UPPER_REGNUM, 4 }, { 1, S390_R13_REGNUM, 4 }, | |
78 | { 1, S390_R14_UPPER_REGNUM, 4 }, { 1, S390_R14_REGNUM, 4 }, | |
79 | { 1, S390_R15_UPPER_REGNUM, 4 }, { 1, S390_R15_REGNUM, 4 }, | |
80 | { 16, S390_A0_REGNUM, 4 }, | |
81 | { 1, REGCACHE_MAP_SKIP, 4 }, { 1, S390_ORIG_R2_REGNUM, 4 }, | |
82 | { 0 } | |
83 | }; | |
84 | ||
85 | static const struct regset s390_64_gregset = | |
86 | { | |
87 | s390_64_regmap_gregset, | |
88 | regcache_supply_regset, | |
89 | regcache_collect_regset | |
90 | }; | |
91 | ||
92 | #define S390_PSWM_OFFSET 0 | |
93 | #define S390_PSWA_OFFSET 8 | |
5769d3cd | 94 | #endif |
d0f54f9d | 95 | |
2ccd1468 UW |
96 | /* Fill GDB's register array with the general-purpose register values |
97 | in *REGP. | |
98 | ||
99 | When debugging a 32-bit executable running under a 64-bit kernel, | |
100 | we have to fix up the 64-bit registers we get from the kernel to | |
101 | make them look like 32-bit registers. */ | |
d6db1fab | 102 | |
2ccd1468 UW |
103 | void |
104 | supply_gregset (struct regcache *regcache, const gregset_t *regp) | |
105 | { | |
9cbd5950 | 106 | #ifdef __s390x__ |
d6db1fab | 107 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
2ccd1468 | 108 | if (gdbarch_ptr_bit (gdbarch) == 32) |
d6db1fab UW |
109 | { |
110 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
99b7da5d | 111 | ULONGEST pswm, pswa; |
2ccd1468 | 112 | gdb_byte buf[4]; |
d6db1fab | 113 | |
99b7da5d AA |
114 | regcache_supply_regset (&s390_64_gregset, regcache, -1, |
115 | regp, sizeof (gregset_t)); | |
116 | pswm = extract_unsigned_integer ((const gdb_byte *) regp | |
117 | + S390_PSWM_OFFSET, 8, byte_order); | |
118 | pswa = extract_unsigned_integer ((const gdb_byte *) regp | |
119 | + S390_PSWA_OFFSET, 8, byte_order); | |
2ccd1468 UW |
120 | store_unsigned_integer (buf, 4, byte_order, (pswm >> 32) | 0x80000); |
121 | regcache_raw_supply (regcache, S390_PSWM_REGNUM, buf); | |
122 | store_unsigned_integer (buf, 4, byte_order, | |
123 | (pswa & 0x7fffffff) | (pswm & 0x80000000)); | |
124 | regcache_raw_supply (regcache, S390_PSWA_REGNUM, buf); | |
125 | return; | |
d6db1fab UW |
126 | } |
127 | #endif | |
128 | ||
99b7da5d AA |
129 | regcache_supply_regset (&s390_gregset, regcache, -1, regp, |
130 | sizeof (gregset_t)); | |
d6db1fab UW |
131 | } |
132 | ||
2ccd1468 UW |
133 | /* Fill register REGNO (if it is a general-purpose register) in |
134 | *REGP with the value in GDB's register array. If REGNO is -1, | |
135 | do this for all registers. */ | |
d6db1fab | 136 | |
2ccd1468 UW |
137 | void |
138 | fill_gregset (const struct regcache *regcache, gregset_t *regp, int regno) | |
139 | { | |
d6db1fab UW |
140 | #ifdef __s390x__ |
141 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
2ccd1468 | 142 | if (gdbarch_ptr_bit (gdbarch) == 32) |
d6db1fab | 143 | { |
99b7da5d AA |
144 | regcache_collect_regset (&s390_64_gregset, regcache, regno, |
145 | regp, sizeof (gregset_t)); | |
d6db1fab | 146 | |
2ccd1468 UW |
147 | if (regno == -1 |
148 | || regno == S390_PSWM_REGNUM || regno == S390_PSWA_REGNUM) | |
d6db1fab | 149 | { |
2ccd1468 UW |
150 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
151 | ULONGEST pswa, pswm; | |
d6db1fab | 152 | gdb_byte buf[4]; |
2492f0d0 AA |
153 | gdb_byte *pswm_p = (gdb_byte *) regp + S390_PSWM_OFFSET; |
154 | gdb_byte *pswa_p = (gdb_byte *) regp + S390_PSWA_OFFSET; | |
d6db1fab | 155 | |
2492f0d0 | 156 | pswm = extract_unsigned_integer (pswm_p, 8, byte_order); |
d6db1fab | 157 | |
2ccd1468 | 158 | if (regno == -1 || regno == S390_PSWM_REGNUM) |
2492f0d0 AA |
159 | { |
160 | pswm &= 0x80000000; | |
161 | regcache_raw_collect (regcache, S390_PSWM_REGNUM, buf); | |
162 | pswm |= (extract_unsigned_integer (buf, 4, byte_order) | |
163 | & 0xfff7ffff) << 32; | |
164 | } | |
165 | ||
2ccd1468 | 166 | if (regno == -1 || regno == S390_PSWA_REGNUM) |
2492f0d0 AA |
167 | { |
168 | regcache_raw_collect (regcache, S390_PSWA_REGNUM, buf); | |
169 | pswa = extract_unsigned_integer (buf, 4, byte_order); | |
170 | pswm ^= (pswm ^ pswa) & 0x80000000; | |
171 | pswa &= 0x7fffffff; | |
172 | store_unsigned_integer (pswa_p, 8, byte_order, pswa); | |
173 | } | |
174 | ||
175 | store_unsigned_integer (pswm_p, 8, byte_order, pswm); | |
d6db1fab | 176 | } |
2ccd1468 | 177 | return; |
d6db1fab | 178 | } |
9cbd5950 JB |
179 | #endif |
180 | ||
99b7da5d AA |
181 | regcache_collect_regset (&s390_gregset, regcache, regno, regp, |
182 | sizeof (gregset_t)); | |
d0f54f9d JB |
183 | } |
184 | ||
185 | /* Fill GDB's register array with the floating-point register values | |
186 | in *REGP. */ | |
187 | void | |
7f7fe91e | 188 | supply_fpregset (struct regcache *regcache, const fpregset_t *regp) |
d0f54f9d | 189 | { |
99b7da5d AA |
190 | regcache_supply_regset (&s390_fpregset, regcache, -1, regp, |
191 | sizeof (fpregset_t)); | |
d0f54f9d JB |
192 | } |
193 | ||
194 | /* Fill register REGNO (if it is a general-purpose register) in | |
195 | *REGP with the value in GDB's register array. If REGNO is -1, | |
196 | do this for all registers. */ | |
197 | void | |
7f7fe91e | 198 | fill_fpregset (const struct regcache *regcache, fpregset_t *regp, int regno) |
d0f54f9d | 199 | { |
99b7da5d AA |
200 | regcache_collect_regset (&s390_fpregset, regcache, regno, regp, |
201 | sizeof (fpregset_t)); | |
d0f54f9d JB |
202 | } |
203 | ||
204 | /* Find the TID for the current inferior thread to use with ptrace. */ | |
205 | static int | |
206 | s390_inferior_tid (void) | |
207 | { | |
208 | /* GNU/Linux LWP ID's are process ID's. */ | |
dfd4cc63 | 209 | int tid = ptid_get_lwp (inferior_ptid); |
d0f54f9d | 210 | if (tid == 0) |
dfd4cc63 | 211 | tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */ |
d0f54f9d JB |
212 | |
213 | return tid; | |
214 | } | |
215 | ||
216 | /* Fetch all general-purpose registers from process/thread TID and | |
217 | store their values in GDB's register cache. */ | |
218 | static void | |
56be3814 | 219 | fetch_regs (struct regcache *regcache, int tid) |
d0f54f9d JB |
220 | { |
221 | gregset_t regs; | |
222 | ptrace_area parea; | |
223 | ||
224 | parea.len = sizeof (regs); | |
225 | parea.process_addr = (addr_t) ®s; | |
226 | parea.kernel_addr = offsetof (struct user_regs_struct, psw); | |
2b4cab86 | 227 | if (ptrace (PTRACE_PEEKUSR_AREA, tid, (long) &parea, 0) < 0) |
e2e0b3e5 | 228 | perror_with_name (_("Couldn't get registers")); |
d0f54f9d | 229 | |
56be3814 | 230 | supply_gregset (regcache, (const gregset_t *) ®s); |
d0f54f9d JB |
231 | } |
232 | ||
233 | /* Store all valid general-purpose registers in GDB's register cache | |
234 | into the process/thread specified by TID. */ | |
235 | static void | |
56be3814 | 236 | store_regs (const struct regcache *regcache, int tid, int regnum) |
d0f54f9d JB |
237 | { |
238 | gregset_t regs; | |
239 | ptrace_area parea; | |
240 | ||
241 | parea.len = sizeof (regs); | |
242 | parea.process_addr = (addr_t) ®s; | |
243 | parea.kernel_addr = offsetof (struct user_regs_struct, psw); | |
2b4cab86 | 244 | if (ptrace (PTRACE_PEEKUSR_AREA, tid, (long) &parea, 0) < 0) |
e2e0b3e5 | 245 | perror_with_name (_("Couldn't get registers")); |
d0f54f9d | 246 | |
56be3814 | 247 | fill_gregset (regcache, ®s, regnum); |
d0f54f9d | 248 | |
2b4cab86 | 249 | if (ptrace (PTRACE_POKEUSR_AREA, tid, (long) &parea, 0) < 0) |
e2e0b3e5 | 250 | perror_with_name (_("Couldn't write registers")); |
d0f54f9d JB |
251 | } |
252 | ||
253 | /* Fetch all floating-point registers from process/thread TID and store | |
254 | their values in GDB's register cache. */ | |
255 | static void | |
56be3814 | 256 | fetch_fpregs (struct regcache *regcache, int tid) |
d0f54f9d JB |
257 | { |
258 | fpregset_t fpregs; | |
259 | ptrace_area parea; | |
260 | ||
261 | parea.len = sizeof (fpregs); | |
262 | parea.process_addr = (addr_t) &fpregs; | |
263 | parea.kernel_addr = offsetof (struct user_regs_struct, fp_regs); | |
2b4cab86 | 264 | if (ptrace (PTRACE_PEEKUSR_AREA, tid, (long) &parea, 0) < 0) |
e2e0b3e5 | 265 | perror_with_name (_("Couldn't get floating point status")); |
d0f54f9d | 266 | |
56be3814 | 267 | supply_fpregset (regcache, (const fpregset_t *) &fpregs); |
d0f54f9d JB |
268 | } |
269 | ||
270 | /* Store all valid floating-point registers in GDB's register cache | |
271 | into the process/thread specified by TID. */ | |
272 | static void | |
56be3814 | 273 | store_fpregs (const struct regcache *regcache, int tid, int regnum) |
d0f54f9d JB |
274 | { |
275 | fpregset_t fpregs; | |
276 | ptrace_area parea; | |
277 | ||
278 | parea.len = sizeof (fpregs); | |
279 | parea.process_addr = (addr_t) &fpregs; | |
280 | parea.kernel_addr = offsetof (struct user_regs_struct, fp_regs); | |
2b4cab86 | 281 | if (ptrace (PTRACE_PEEKUSR_AREA, tid, (long) &parea, 0) < 0) |
e2e0b3e5 | 282 | perror_with_name (_("Couldn't get floating point status")); |
d0f54f9d | 283 | |
56be3814 | 284 | fill_fpregset (regcache, &fpregs, regnum); |
d0f54f9d | 285 | |
2b4cab86 | 286 | if (ptrace (PTRACE_POKEUSR_AREA, tid, (long) &parea, 0) < 0) |
e2e0b3e5 | 287 | perror_with_name (_("Couldn't write floating point status")); |
d0f54f9d JB |
288 | } |
289 | ||
99b7da5d AA |
290 | /* Fetch all registers in the kernel's register set whose number is |
291 | REGSET_ID, whose size is REGSIZE, and whose layout is described by | |
292 | REGSET, from process/thread TID and store their values in GDB's | |
293 | register cache. */ | |
c642a434 UW |
294 | static void |
295 | fetch_regset (struct regcache *regcache, int tid, | |
99b7da5d | 296 | int regset_id, int regsize, const struct regset *regset) |
c642a434 | 297 | { |
3451269c | 298 | void *buf = alloca (regsize); |
c642a434 | 299 | struct iovec iov; |
c642a434 UW |
300 | |
301 | iov.iov_base = buf; | |
302 | iov.iov_len = regsize; | |
303 | ||
99b7da5d | 304 | if (ptrace (PTRACE_GETREGSET, tid, (long) regset_id, (long) &iov) < 0) |
4ac33720 UW |
305 | { |
306 | if (errno == ENODATA) | |
99b7da5d | 307 | regcache_supply_regset (regset, regcache, -1, NULL, regsize); |
4ac33720 UW |
308 | else |
309 | perror_with_name (_("Couldn't get register set")); | |
310 | } | |
311 | else | |
99b7da5d | 312 | regcache_supply_regset (regset, regcache, -1, buf, regsize); |
c642a434 UW |
313 | } |
314 | ||
99b7da5d AA |
315 | /* Store all registers in the kernel's register set whose number is |
316 | REGSET_ID, whose size is REGSIZE, and whose layout is described by | |
317 | REGSET, from GDB's register cache back to process/thread TID. */ | |
c642a434 UW |
318 | static void |
319 | store_regset (struct regcache *regcache, int tid, | |
99b7da5d | 320 | int regset_id, int regsize, const struct regset *regset) |
c642a434 | 321 | { |
3451269c | 322 | void *buf = alloca (regsize); |
c642a434 | 323 | struct iovec iov; |
c642a434 UW |
324 | |
325 | iov.iov_base = buf; | |
326 | iov.iov_len = regsize; | |
327 | ||
99b7da5d | 328 | if (ptrace (PTRACE_GETREGSET, tid, (long) regset_id, (long) &iov) < 0) |
c642a434 UW |
329 | perror_with_name (_("Couldn't get register set")); |
330 | ||
99b7da5d | 331 | regcache_collect_regset (regset, regcache, -1, buf, regsize); |
c642a434 | 332 | |
99b7da5d | 333 | if (ptrace (PTRACE_SETREGSET, tid, (long) regset_id, (long) &iov) < 0) |
c642a434 UW |
334 | perror_with_name (_("Couldn't set register set")); |
335 | } | |
336 | ||
337 | /* Check whether the kernel provides a register set with number REGSET | |
338 | of size REGSIZE for process/thread TID. */ | |
339 | static int | |
340 | check_regset (int tid, int regset, int regsize) | |
341 | { | |
3451269c | 342 | void *buf = alloca (regsize); |
c642a434 UW |
343 | struct iovec iov; |
344 | ||
345 | iov.iov_base = buf; | |
346 | iov.iov_len = regsize; | |
347 | ||
4ac33720 UW |
348 | if (ptrace (PTRACE_GETREGSET, tid, (long) regset, (long) &iov) >= 0 |
349 | || errno == ENODATA) | |
c642a434 | 350 | return 1; |
4ac33720 | 351 | return 0; |
c642a434 UW |
352 | } |
353 | ||
d0f54f9d JB |
354 | /* Fetch register REGNUM from the child process. If REGNUM is -1, do |
355 | this for all registers. */ | |
10d6c8cd | 356 | static void |
28439f5e PA |
357 | s390_linux_fetch_inferior_registers (struct target_ops *ops, |
358 | struct regcache *regcache, int regnum) | |
d0f54f9d JB |
359 | { |
360 | int tid = s390_inferior_tid (); | |
361 | ||
2ccd1468 | 362 | if (regnum == -1 || S390_IS_GREGSET_REGNUM (regnum)) |
56be3814 | 363 | fetch_regs (regcache, tid); |
d0f54f9d | 364 | |
2ccd1468 | 365 | if (regnum == -1 || S390_IS_FPREGSET_REGNUM (regnum)) |
56be3814 | 366 | fetch_fpregs (regcache, tid); |
c642a434 UW |
367 | |
368 | if (have_regset_last_break) | |
369 | if (regnum == -1 || regnum == S390_LAST_BREAK_REGNUM) | |
370 | fetch_regset (regcache, tid, NT_S390_LAST_BREAK, 8, | |
371 | (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32 | |
99b7da5d | 372 | ? &s390_last_break_regset : &s390x_last_break_regset)); |
c642a434 UW |
373 | |
374 | if (have_regset_system_call) | |
375 | if (regnum == -1 || regnum == S390_SYSTEM_CALL_REGNUM) | |
376 | fetch_regset (regcache, tid, NT_S390_SYSTEM_CALL, 4, | |
99b7da5d | 377 | &s390_system_call_regset); |
4ac33720 UW |
378 | |
379 | if (have_regset_tdb) | |
380 | if (regnum == -1 || S390_IS_TDBREGSET_REGNUM (regnum)) | |
381 | fetch_regset (regcache, tid, NT_S390_TDB, s390_sizeof_tdbregset, | |
99b7da5d | 382 | &s390_tdb_regset); |
550bdf96 AA |
383 | |
384 | if (have_regset_vxrs) | |
385 | { | |
386 | if (regnum == -1 || (regnum >= S390_V0_LOWER_REGNUM | |
387 | && regnum <= S390_V15_LOWER_REGNUM)) | |
388 | fetch_regset (regcache, tid, NT_S390_VXRS_LOW, 16 * 8, | |
389 | &s390_vxrs_low_regset); | |
390 | if (regnum == -1 || (regnum >= S390_V16_REGNUM | |
391 | && regnum <= S390_V31_REGNUM)) | |
392 | fetch_regset (regcache, tid, NT_S390_VXRS_HIGH, 16 * 16, | |
393 | &s390_vxrs_high_regset); | |
394 | } | |
d0f54f9d JB |
395 | } |
396 | ||
397 | /* Store register REGNUM back into the child process. If REGNUM is | |
398 | -1, do this for all registers. */ | |
10d6c8cd | 399 | static void |
28439f5e PA |
400 | s390_linux_store_inferior_registers (struct target_ops *ops, |
401 | struct regcache *regcache, int regnum) | |
d0f54f9d JB |
402 | { |
403 | int tid = s390_inferior_tid (); | |
404 | ||
2ccd1468 | 405 | if (regnum == -1 || S390_IS_GREGSET_REGNUM (regnum)) |
56be3814 | 406 | store_regs (regcache, tid, regnum); |
d0f54f9d | 407 | |
2ccd1468 | 408 | if (regnum == -1 || S390_IS_FPREGSET_REGNUM (regnum)) |
56be3814 | 409 | store_fpregs (regcache, tid, regnum); |
c642a434 UW |
410 | |
411 | /* S390_LAST_BREAK_REGNUM is read-only. */ | |
412 | ||
413 | if (have_regset_system_call) | |
414 | if (regnum == -1 || regnum == S390_SYSTEM_CALL_REGNUM) | |
415 | store_regset (regcache, tid, NT_S390_SYSTEM_CALL, 4, | |
99b7da5d | 416 | &s390_system_call_regset); |
550bdf96 AA |
417 | |
418 | if (have_regset_vxrs) | |
419 | { | |
420 | if (regnum == -1 || (regnum >= S390_V0_LOWER_REGNUM | |
421 | && regnum <= S390_V15_LOWER_REGNUM)) | |
422 | store_regset (regcache, tid, NT_S390_VXRS_LOW, 16 * 8, | |
423 | &s390_vxrs_low_regset); | |
424 | if (regnum == -1 || (regnum >= S390_V16_REGNUM | |
425 | && regnum <= S390_V31_REGNUM)) | |
426 | store_regset (regcache, tid, NT_S390_VXRS_HIGH, 16 * 16, | |
427 | &s390_vxrs_high_regset); | |
428 | } | |
5769d3cd AC |
429 | } |
430 | ||
d0f54f9d | 431 | |
e1457d83 JB |
432 | /* Hardware-assisted watchpoint handling. */ |
433 | ||
373c3dad AA |
434 | /* For each process we maintain a list of all currently active |
435 | watchpoints, in order to properly handle watchpoint removal. | |
e1457d83 JB |
436 | |
437 | The only thing we actually need is the total address space area | |
438 | spanned by the watchpoints. */ | |
439 | ||
17c84cca | 440 | typedef struct watch_area |
5769d3cd | 441 | { |
5769d3cd AC |
442 | CORE_ADDR lo_addr; |
443 | CORE_ADDR hi_addr; | |
17c84cca AA |
444 | } s390_watch_area; |
445 | ||
446 | DEF_VEC_O (s390_watch_area); | |
5769d3cd | 447 | |
373c3dad AA |
448 | /* Hardware debug state. */ |
449 | ||
450 | struct s390_debug_reg_state | |
451 | { | |
452 | VEC_s390_watch_area *watch_areas; | |
453 | }; | |
454 | ||
455 | /* Per-process data. */ | |
456 | ||
457 | struct s390_process_info | |
458 | { | |
459 | struct s390_process_info *next; | |
460 | pid_t pid; | |
461 | struct s390_debug_reg_state state; | |
462 | }; | |
463 | ||
464 | static struct s390_process_info *s390_process_list = NULL; | |
465 | ||
466 | /* Find process data for process PID. */ | |
467 | ||
468 | static struct s390_process_info * | |
469 | s390_find_process_pid (pid_t pid) | |
470 | { | |
471 | struct s390_process_info *proc; | |
472 | ||
473 | for (proc = s390_process_list; proc; proc = proc->next) | |
474 | if (proc->pid == pid) | |
475 | return proc; | |
476 | ||
477 | return NULL; | |
478 | } | |
479 | ||
480 | /* Add process data for process PID. Returns newly allocated info | |
481 | object. */ | |
482 | ||
483 | static struct s390_process_info * | |
484 | s390_add_process (pid_t pid) | |
485 | { | |
486 | struct s390_process_info *proc = XCNEW (struct s390_process_info); | |
487 | ||
488 | proc->pid = pid; | |
489 | proc->next = s390_process_list; | |
490 | s390_process_list = proc; | |
491 | ||
492 | return proc; | |
493 | } | |
494 | ||
495 | /* Get data specific info for process PID, creating it if necessary. | |
496 | Never returns NULL. */ | |
497 | ||
498 | static struct s390_process_info * | |
499 | s390_process_info_get (pid_t pid) | |
500 | { | |
501 | struct s390_process_info *proc; | |
502 | ||
503 | proc = s390_find_process_pid (pid); | |
504 | if (proc == NULL) | |
505 | proc = s390_add_process (pid); | |
506 | ||
507 | return proc; | |
508 | } | |
509 | ||
510 | /* Get hardware debug state for process PID. */ | |
511 | ||
512 | static struct s390_debug_reg_state * | |
513 | s390_get_debug_reg_state (pid_t pid) | |
514 | { | |
515 | return &s390_process_info_get (pid)->state; | |
516 | } | |
517 | ||
518 | /* Called whenever GDB is no longer debugging process PID. It deletes | |
519 | data structures that keep track of hardware debug state. */ | |
520 | ||
521 | static void | |
522 | s390_forget_process (pid_t pid) | |
523 | { | |
524 | struct s390_process_info *proc, **proc_link; | |
525 | ||
526 | proc = s390_process_list; | |
527 | proc_link = &s390_process_list; | |
528 | ||
529 | while (proc != NULL) | |
530 | { | |
531 | if (proc->pid == pid) | |
532 | { | |
533 | VEC_free (s390_watch_area, proc->state.watch_areas); | |
534 | *proc_link = proc->next; | |
535 | xfree (proc); | |
536 | return; | |
537 | } | |
538 | ||
539 | proc_link = &proc->next; | |
540 | proc = *proc_link; | |
541 | } | |
542 | } | |
543 | ||
544 | /* linux_nat_new_fork hook. */ | |
545 | ||
546 | static void | |
547 | s390_linux_new_fork (struct lwp_info *parent, pid_t child_pid) | |
548 | { | |
549 | pid_t parent_pid; | |
550 | struct s390_debug_reg_state *parent_state; | |
551 | struct s390_debug_reg_state *child_state; | |
552 | ||
553 | /* NULL means no watchpoint has ever been set in the parent. In | |
554 | that case, there's nothing to do. */ | |
555 | if (lwp_arch_private_info (parent) == NULL) | |
556 | return; | |
557 | ||
558 | /* GDB core assumes the child inherits the watchpoints/hw breakpoints of | |
559 | the parent. So copy the debug state from parent to child. */ | |
560 | ||
561 | parent_pid = ptid_get_pid (parent->ptid); | |
562 | parent_state = s390_get_debug_reg_state (parent_pid); | |
563 | child_state = s390_get_debug_reg_state (child_pid); | |
564 | ||
565 | child_state->watch_areas = VEC_copy (s390_watch_area, | |
566 | parent_state->watch_areas); | |
567 | } | |
5769d3cd | 568 | |
169fe0df AA |
569 | /* Dump PER state. */ |
570 | ||
571 | static void | |
572 | s390_show_debug_regs (int tid, const char *where) | |
573 | { | |
574 | per_struct per_info; | |
575 | ptrace_area parea; | |
576 | ||
577 | parea.len = sizeof (per_info); | |
578 | parea.process_addr = (addr_t) &per_info; | |
579 | parea.kernel_addr = offsetof (struct user_regs_struct, per_info); | |
580 | ||
581 | if (ptrace (PTRACE_PEEKUSR_AREA, tid, &parea, 0) < 0) | |
582 | perror_with_name (_("Couldn't retrieve debug regs")); | |
583 | ||
584 | debug_printf ("PER (debug) state for %d -- %s\n" | |
585 | " cr9-11: %lx %lx %lx\n" | |
586 | " start, end: %lx %lx\n" | |
587 | " code/ATMID: %x address: %lx PAID: %x\n", | |
588 | tid, | |
589 | where, | |
590 | per_info.control_regs.words.cr[0], | |
591 | per_info.control_regs.words.cr[1], | |
592 | per_info.control_regs.words.cr[2], | |
593 | per_info.starting_addr, | |
594 | per_info.ending_addr, | |
595 | per_info.lowcore.words.perc_atmid, | |
596 | per_info.lowcore.words.address, | |
597 | per_info.lowcore.words.access_id); | |
598 | } | |
599 | ||
fd7979d1 | 600 | static int |
6a109b6b | 601 | s390_stopped_by_watchpoint (struct target_ops *ops) |
5769d3cd | 602 | { |
373c3dad AA |
603 | struct s390_debug_reg_state *state |
604 | = s390_get_debug_reg_state (ptid_get_pid (inferior_ptid)); | |
5769d3cd AC |
605 | per_lowcore_bits per_lowcore; |
606 | ptrace_area parea; | |
9f0bdab8 | 607 | int result; |
5769d3cd | 608 | |
169fe0df AA |
609 | if (show_debug_regs) |
610 | s390_show_debug_regs (s390_inferior_tid (), "stop"); | |
611 | ||
e1457d83 | 612 | /* Speed up common case. */ |
373c3dad | 613 | if (VEC_empty (s390_watch_area, state->watch_areas)) |
e1457d83 JB |
614 | return 0; |
615 | ||
5769d3cd AC |
616 | parea.len = sizeof (per_lowcore); |
617 | parea.process_addr = (addr_t) & per_lowcore; | |
618 | parea.kernel_addr = offsetof (struct user_regs_struct, per_info.lowcore); | |
2b4cab86 | 619 | if (ptrace (PTRACE_PEEKUSR_AREA, s390_inferior_tid (), &parea, 0) < 0) |
e2e0b3e5 | 620 | perror_with_name (_("Couldn't retrieve watchpoint status")); |
5769d3cd | 621 | |
9f0bdab8 DJ |
622 | result = (per_lowcore.perc_storage_alteration == 1 |
623 | && per_lowcore.perc_store_real_address == 0); | |
624 | ||
625 | if (result) | |
626 | { | |
627 | /* Do not report this watchpoint again. */ | |
628 | memset (&per_lowcore, 0, sizeof (per_lowcore)); | |
2b4cab86 | 629 | if (ptrace (PTRACE_POKEUSR_AREA, s390_inferior_tid (), &parea, 0) < 0) |
9f0bdab8 DJ |
630 | perror_with_name (_("Couldn't clear watchpoint status")); |
631 | } | |
632 | ||
633 | return result; | |
e1457d83 | 634 | } |
5769d3cd | 635 | |
18396193 AA |
636 | /* Each time before resuming a thread, update its PER info. */ |
637 | ||
e1457d83 | 638 | static void |
18396193 | 639 | s390_prepare_to_resume (struct lwp_info *lp) |
5769d3cd | 640 | { |
9f0bdab8 | 641 | int tid; |
373c3dad | 642 | pid_t pid = ptid_get_pid (ptid_of_lwp (lp)); |
e1457d83 | 643 | |
5769d3cd AC |
644 | per_struct per_info; |
645 | ptrace_area parea; | |
646 | ||
e1457d83 | 647 | CORE_ADDR watch_lo_addr = (CORE_ADDR)-1, watch_hi_addr = 0; |
17c84cca AA |
648 | unsigned ix; |
649 | s390_watch_area *area; | |
9c2996c9 | 650 | struct arch_lwp_info *lp_priv = lwp_arch_private_info (lp); |
373c3dad | 651 | struct s390_debug_reg_state *state = s390_get_debug_reg_state (pid); |
e1457d83 | 652 | |
9c2996c9 | 653 | if (lp_priv == NULL || !lp_priv->per_info_changed) |
18396193 AA |
654 | return; |
655 | ||
9c2996c9 | 656 | lp_priv->per_info_changed = 0; |
18396193 | 657 | |
9c2996c9 | 658 | tid = ptid_get_lwp (ptid_of_lwp (lp)); |
9f0bdab8 | 659 | if (tid == 0) |
373c3dad | 660 | tid = pid; |
9f0bdab8 | 661 | |
5769d3cd AC |
662 | parea.len = sizeof (per_info); |
663 | parea.process_addr = (addr_t) & per_info; | |
e1457d83 | 664 | parea.kernel_addr = offsetof (struct user_regs_struct, per_info); |
2b4cab86 | 665 | if (ptrace (PTRACE_PEEKUSR_AREA, tid, &parea, 0) < 0) |
e2e0b3e5 | 666 | perror_with_name (_("Couldn't retrieve watchpoint status")); |
e1457d83 | 667 | |
373c3dad | 668 | if (!VEC_empty (s390_watch_area, state->watch_areas)) |
5769d3cd | 669 | { |
17c84cca | 670 | for (ix = 0; |
373c3dad | 671 | VEC_iterate (s390_watch_area, state->watch_areas, ix, area); |
17c84cca AA |
672 | ix++) |
673 | { | |
674 | watch_lo_addr = min (watch_lo_addr, area->lo_addr); | |
675 | watch_hi_addr = max (watch_hi_addr, area->hi_addr); | |
676 | } | |
677 | ||
5769d3cd AC |
678 | per_info.control_regs.bits.em_storage_alteration = 1; |
679 | per_info.control_regs.bits.storage_alt_space_ctl = 1; | |
680 | } | |
681 | else | |
682 | { | |
683 | per_info.control_regs.bits.em_storage_alteration = 0; | |
684 | per_info.control_regs.bits.storage_alt_space_ctl = 0; | |
685 | } | |
686 | per_info.starting_addr = watch_lo_addr; | |
687 | per_info.ending_addr = watch_hi_addr; | |
e1457d83 | 688 | |
2b4cab86 | 689 | if (ptrace (PTRACE_POKEUSR_AREA, tid, &parea, 0) < 0) |
e2e0b3e5 | 690 | perror_with_name (_("Couldn't modify watchpoint status")); |
169fe0df AA |
691 | |
692 | if (show_debug_regs) | |
693 | s390_show_debug_regs (tid, "resume"); | |
5769d3cd AC |
694 | } |
695 | ||
9c2996c9 | 696 | /* Mark the PER info as changed, so the next resume will update it. */ |
18396193 AA |
697 | |
698 | static void | |
9c2996c9 | 699 | s390_mark_per_info_changed (struct lwp_info *lp) |
18396193 | 700 | { |
9c2996c9 AA |
701 | if (lwp_arch_private_info (lp) == NULL) |
702 | lwp_set_arch_private_info (lp, XCNEW (struct arch_lwp_info)); | |
18396193 | 703 | |
9c2996c9 | 704 | lwp_arch_private_info (lp)->per_info_changed = 1; |
18396193 AA |
705 | } |
706 | ||
707 | /* When attaching to a new thread, mark its PER info as changed. */ | |
708 | ||
709 | static void | |
710 | s390_new_thread (struct lwp_info *lp) | |
711 | { | |
9c2996c9 AA |
712 | s390_mark_per_info_changed (lp); |
713 | } | |
714 | ||
715 | /* Iterator callback for s390_refresh_per_info. */ | |
716 | ||
717 | static int | |
718 | s390_refresh_per_info_cb (struct lwp_info *lp, void *arg) | |
719 | { | |
720 | s390_mark_per_info_changed (lp); | |
721 | ||
722 | if (!lwp_is_stopped (lp)) | |
723 | linux_stop_lwp (lp); | |
724 | return 0; | |
725 | } | |
726 | ||
727 | /* Make sure that threads are stopped and mark PER info as changed. */ | |
728 | ||
729 | static int | |
730 | s390_refresh_per_info (void) | |
731 | { | |
732 | ptid_t pid_ptid = pid_to_ptid (ptid_get_pid (current_lwp_ptid ())); | |
733 | ||
734 | iterate_over_lwps (pid_ptid, s390_refresh_per_info_cb, NULL); | |
735 | return 0; | |
18396193 AA |
736 | } |
737 | ||
fd7979d1 | 738 | static int |
7bb99c53 | 739 | s390_insert_watchpoint (struct target_ops *self, |
f486487f | 740 | CORE_ADDR addr, int len, enum target_hw_bp_type type, |
0cf6dd15 | 741 | struct expression *cond) |
5769d3cd | 742 | { |
17c84cca | 743 | s390_watch_area area; |
373c3dad AA |
744 | struct s390_debug_reg_state *state |
745 | = s390_get_debug_reg_state (ptid_get_pid (inferior_ptid)); | |
9f0bdab8 | 746 | |
17c84cca AA |
747 | area.lo_addr = addr; |
748 | area.hi_addr = addr + len - 1; | |
373c3dad | 749 | VEC_safe_push (s390_watch_area, state->watch_areas, &area); |
e1457d83 | 750 | |
9c2996c9 | 751 | return s390_refresh_per_info (); |
5769d3cd AC |
752 | } |
753 | ||
fd7979d1 | 754 | static int |
11b5219a | 755 | s390_remove_watchpoint (struct target_ops *self, |
f486487f | 756 | CORE_ADDR addr, int len, enum target_hw_bp_type type, |
0cf6dd15 | 757 | struct expression *cond) |
5769d3cd | 758 | { |
17c84cca AA |
759 | unsigned ix; |
760 | s390_watch_area *area; | |
373c3dad AA |
761 | struct s390_debug_reg_state *state |
762 | = s390_get_debug_reg_state (ptid_get_pid (inferior_ptid)); | |
e1457d83 | 763 | |
17c84cca | 764 | for (ix = 0; |
373c3dad | 765 | VEC_iterate (s390_watch_area, state->watch_areas, ix, area); |
17c84cca | 766 | ix++) |
5769d3cd | 767 | { |
17c84cca AA |
768 | if (area->lo_addr == addr && area->hi_addr == addr + len - 1) |
769 | { | |
373c3dad | 770 | VEC_unordered_remove (s390_watch_area, state->watch_areas, ix); |
17c84cca AA |
771 | return s390_refresh_per_info (); |
772 | } | |
5769d3cd | 773 | } |
e1457d83 | 774 | |
17c84cca AA |
775 | fprintf_unfiltered (gdb_stderr, |
776 | "Attempt to remove nonexistent watchpoint.\n"); | |
777 | return -1; | |
5769d3cd AC |
778 | } |
779 | ||
fd7979d1 | 780 | static int |
5461485a | 781 | s390_can_use_hw_breakpoint (struct target_ops *self, |
f486487f | 782 | enum bptype type, int cnt, int othertype) |
fd7979d1 | 783 | { |
b1798462 | 784 | return type == bp_hardware_watchpoint; |
fd7979d1 | 785 | } |
e1457d83 | 786 | |
fd7979d1 | 787 | static int |
31568a15 TT |
788 | s390_region_ok_for_hw_watchpoint (struct target_ops *self, |
789 | CORE_ADDR addr, int cnt) | |
5769d3cd | 790 | { |
fd7979d1 | 791 | return 1; |
5769d3cd AC |
792 | } |
793 | ||
7803799a UW |
794 | static int |
795 | s390_target_wordsize (void) | |
796 | { | |
797 | int wordsize = 4; | |
798 | ||
799 | /* Check for 64-bit inferior process. This is the case when the host is | |
800 | 64-bit, and in addition bit 32 of the PSW mask is set. */ | |
801 | #ifdef __s390x__ | |
802 | long pswm; | |
803 | ||
804 | errno = 0; | |
805 | pswm = (long) ptrace (PTRACE_PEEKUSER, s390_inferior_tid (), PT_PSWMASK, 0); | |
806 | if (errno == 0 && (pswm & 0x100000000ul) != 0) | |
807 | wordsize = 8; | |
808 | #endif | |
809 | ||
810 | return wordsize; | |
811 | } | |
812 | ||
813 | static int | |
814 | s390_auxv_parse (struct target_ops *ops, gdb_byte **readptr, | |
815 | gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp) | |
816 | { | |
817 | int sizeof_auxv_field = s390_target_wordsize (); | |
f5656ead | 818 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ()); |
7803799a UW |
819 | gdb_byte *ptr = *readptr; |
820 | ||
821 | if (endptr == ptr) | |
822 | return 0; | |
823 | ||
824 | if (endptr - ptr < sizeof_auxv_field * 2) | |
825 | return -1; | |
826 | ||
827 | *typep = extract_unsigned_integer (ptr, sizeof_auxv_field, byte_order); | |
828 | ptr += sizeof_auxv_field; | |
829 | *valp = extract_unsigned_integer (ptr, sizeof_auxv_field, byte_order); | |
830 | ptr += sizeof_auxv_field; | |
831 | ||
832 | *readptr = ptr; | |
833 | return 1; | |
834 | } | |
835 | ||
7803799a UW |
836 | static const struct target_desc * |
837 | s390_read_description (struct target_ops *ops) | |
838 | { | |
c642a434 UW |
839 | int tid = s390_inferior_tid (); |
840 | ||
841 | have_regset_last_break | |
842 | = check_regset (tid, NT_S390_LAST_BREAK, 8); | |
843 | have_regset_system_call | |
844 | = check_regset (tid, NT_S390_SYSTEM_CALL, 4); | |
845 | ||
7803799a UW |
846 | /* If GDB itself is compiled as 64-bit, we are running on a machine in |
847 | z/Architecture mode. If the target is running in 64-bit addressing | |
848 | mode, report s390x architecture. If the target is running in 31-bit | |
849 | addressing mode, but the kernel supports using 64-bit registers in | |
850 | that mode, report s390 architecture with 64-bit GPRs. */ | |
550bdf96 AA |
851 | #ifdef __s390x__ |
852 | { | |
853 | CORE_ADDR hwcap = 0; | |
854 | ||
855 | target_auxv_search (¤t_target, AT_HWCAP, &hwcap); | |
856 | have_regset_tdb = (hwcap & HWCAP_S390_TE) | |
857 | && check_regset (tid, NT_S390_TDB, s390_sizeof_tdbregset); | |
858 | ||
859 | have_regset_vxrs = (hwcap & HWCAP_S390_VX) | |
860 | && check_regset (tid, NT_S390_VXRS_LOW, 16 * 8) | |
861 | && check_regset (tid, NT_S390_VXRS_HIGH, 16 * 16); | |
862 | ||
863 | if (s390_target_wordsize () == 8) | |
864 | return (have_regset_vxrs ? | |
865 | (have_regset_tdb ? tdesc_s390x_tevx_linux64 : | |
866 | tdesc_s390x_vx_linux64) : | |
867 | have_regset_tdb ? tdesc_s390x_te_linux64 : | |
868 | have_regset_system_call ? tdesc_s390x_linux64v2 : | |
869 | have_regset_last_break ? tdesc_s390x_linux64v1 : | |
870 | tdesc_s390x_linux64); | |
871 | ||
872 | if (hwcap & HWCAP_S390_HIGH_GPRS) | |
873 | return (have_regset_vxrs ? | |
874 | (have_regset_tdb ? tdesc_s390_tevx_linux64 : | |
875 | tdesc_s390_vx_linux64) : | |
876 | have_regset_tdb ? tdesc_s390_te_linux64 : | |
877 | have_regset_system_call ? tdesc_s390_linux64v2 : | |
878 | have_regset_last_break ? tdesc_s390_linux64v1 : | |
879 | tdesc_s390_linux64); | |
880 | } | |
7803799a UW |
881 | #endif |
882 | ||
883 | /* If GDB itself is compiled as 31-bit, or if we're running a 31-bit inferior | |
884 | on a 64-bit kernel that does not support using 64-bit registers in 31-bit | |
885 | mode, report s390 architecture with 32-bit GPRs. */ | |
c642a434 UW |
886 | return (have_regset_system_call? tdesc_s390_linux32v2 : |
887 | have_regset_last_break? tdesc_s390_linux32v1 : | |
888 | tdesc_s390_linux32); | |
7803799a | 889 | } |
fd7979d1 | 890 | |
10d6c8cd DJ |
891 | void _initialize_s390_nat (void); |
892 | ||
893 | void | |
894 | _initialize_s390_nat (void) | |
895 | { | |
896 | struct target_ops *t; | |
897 | ||
898 | /* Fill in the generic GNU/Linux methods. */ | |
899 | t = linux_target (); | |
900 | ||
901 | /* Add our register access methods. */ | |
902 | t->to_fetch_registers = s390_linux_fetch_inferior_registers; | |
903 | t->to_store_registers = s390_linux_store_inferior_registers; | |
904 | ||
fd7979d1 UW |
905 | /* Add our watchpoint methods. */ |
906 | t->to_can_use_hw_breakpoint = s390_can_use_hw_breakpoint; | |
2a3cdf79 | 907 | t->to_region_ok_for_hw_watchpoint = s390_region_ok_for_hw_watchpoint; |
fd7979d1 UW |
908 | t->to_have_continuable_watchpoint = 1; |
909 | t->to_stopped_by_watchpoint = s390_stopped_by_watchpoint; | |
910 | t->to_insert_watchpoint = s390_insert_watchpoint; | |
911 | t->to_remove_watchpoint = s390_remove_watchpoint; | |
912 | ||
7803799a UW |
913 | /* Detect target architecture. */ |
914 | t->to_read_description = s390_read_description; | |
915 | t->to_auxv_parse = s390_auxv_parse; | |
916 | ||
10d6c8cd | 917 | /* Register the target. */ |
f973ed9c | 918 | linux_nat_add_target (t); |
18396193 AA |
919 | linux_nat_set_new_thread (t, s390_new_thread); |
920 | linux_nat_set_prepare_to_resume (t, s390_prepare_to_resume); | |
373c3dad AA |
921 | linux_nat_set_forget_process (t, s390_forget_process); |
922 | linux_nat_set_new_fork (t, s390_linux_new_fork); | |
169fe0df AA |
923 | |
924 | /* A maintenance command to enable showing the PER state. */ | |
925 | add_setshow_boolean_cmd ("show-debug-regs", class_maintenance, | |
926 | &show_debug_regs, _("\ | |
927 | Set whether to show the PER (debug) hardware state."), _("\ | |
928 | Show whether to show the PER (debug) hardware state."), _("\ | |
929 | Use \"on\" to enable, \"off\" to disable.\n\ | |
930 | If enabled, the PER state is shown after it is changed by GDB,\n\ | |
931 | and when the inferior triggers a breakpoint or watchpoint."), | |
932 | NULL, | |
933 | NULL, | |
934 | &maintenance_set_cmdlist, | |
935 | &maintenance_show_cmdlist); | |
10d6c8cd | 936 | } |