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-rw-r--r--arch/frv/kernel/entry.S13
-rw-r--r--arch/frv/kernel/ptrace.c755
-rw-r--r--arch/frv/kernel/signal.c10
-rw-r--r--arch/frv/kernel/uaccess.c6
4 files changed, 238 insertions, 546 deletions
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index 1da523b3298e..356e0e327a89 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -886,7 +886,6 @@ system_call:
886 bnc icc0,#0,__syscall_badsys 886 bnc icc0,#0,__syscall_badsys
887 887
888 ldi @(gr15,#TI_FLAGS),gr4 888 ldi @(gr15,#TI_FLAGS),gr4
889 ori gr4,#_TIF_SYSCALL_TRACE,gr4
890 andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 889 andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0
891 bne icc0,#0,__syscall_trace_entry 890 bne icc0,#0,__syscall_trace_entry
892 891
@@ -1150,11 +1149,10 @@ __entry_work_notifysig:
1150 # perform syscall entry tracing 1149 # perform syscall entry tracing
1151__syscall_trace_entry: 1150__syscall_trace_entry:
1152 LEDS 0x6320 1151 LEDS 0x6320
1153 setlos.p #0,gr8 1152 call syscall_trace_entry
1154 call do_syscall_trace
1155 1153
1156 ldi @(gr28,#REG_SYSCALLNO),gr7 1154 lddi.p @(gr28,#REG_GR(8)) ,gr8
1157 lddi @(gr28,#REG_GR(8)) ,gr8 1155 ori gr8,#0,gr7 ; syscall_trace_entry() returned new syscallno
1158 lddi @(gr28,#REG_GR(10)),gr10 1156 lddi @(gr28,#REG_GR(10)),gr10
1159 lddi.p @(gr28,#REG_GR(12)),gr12 1157 lddi.p @(gr28,#REG_GR(12)),gr12
1160 1158
@@ -1169,11 +1167,10 @@ __syscall_exit_work:
1169 beq icc0,#1,__entry_work_pending 1167 beq icc0,#1,__entry_work_pending
1170 1168
1171 movsg psr,gr23 1169 movsg psr,gr23
1172 andi gr23,#~PSR_PIL,gr23 ; could let do_syscall_trace() call schedule() 1170 andi gr23,#~PSR_PIL,gr23 ; could let syscall_trace_exit() call schedule()
1173 movgs gr23,psr 1171 movgs gr23,psr
1174 1172
1175 setlos.p #1,gr8 1173 call syscall_trace_exit
1176 call do_syscall_trace
1177 bra __entry_resume_userspace 1174 bra __entry_resume_userspace
1178 1175
1179__syscall_badsys: 1176__syscall_badsys:
diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c
index 5e7d401d21e7..60eeed3694c0 100644
--- a/arch/frv/kernel/ptrace.c
+++ b/arch/frv/kernel/ptrace.c
@@ -19,6 +19,9 @@
19#include <linux/user.h> 19#include <linux/user.h>
20#include <linux/security.h> 20#include <linux/security.h>
21#include <linux/signal.h> 21#include <linux/signal.h>
22#include <linux/regset.h>
23#include <linux/elf.h>
24#include <linux/tracehook.h>
22 25
23#include <asm/uaccess.h> 26#include <asm/uaccess.h>
24#include <asm/page.h> 27#include <asm/page.h>
@@ -33,6 +36,169 @@
33 */ 36 */
34 37
35/* 38/*
39 * retrieve the contents of FRV userspace general registers
40 */
41static int genregs_get(struct task_struct *target,
42 const struct user_regset *regset,
43 unsigned int pos, unsigned int count,
44 void *kbuf, void __user *ubuf)
45{
46 const struct user_int_regs *iregs = &target->thread.user->i;
47 int ret;
48
49 ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
50 iregs, 0, sizeof(*iregs));
51 if (ret < 0)
52 return ret;
53
54 return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
55 sizeof(*iregs), -1);
56}
57
58/*
59 * update the contents of the FRV userspace general registers
60 */
61static int genregs_set(struct task_struct *target,
62 const struct user_regset *regset,
63 unsigned int pos, unsigned int count,
64 const void *kbuf, const void __user *ubuf)
65{
66 struct user_int_regs *iregs = &target->thread.user->i;
67 unsigned int offs_gr0, offs_gr1;
68 int ret;
69
70 /* not allowed to set PSR or __status */
71 if (pos < offsetof(struct user_int_regs, psr) + sizeof(long) &&
72 pos + count > offsetof(struct user_int_regs, psr))
73 return -EIO;
74
75 if (pos < offsetof(struct user_int_regs, __status) + sizeof(long) &&
76 pos + count > offsetof(struct user_int_regs, __status))
77 return -EIO;
78
79 /* set the control regs */
80 offs_gr0 = offsetof(struct user_int_regs, gr[0]);
81 offs_gr1 = offsetof(struct user_int_regs, gr[1]);
82 ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
83 iregs, 0, offs_gr0);
84 if (ret < 0)
85 return ret;
86
87 /* skip GR0/TBR */
88 ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
89 offs_gr0, offs_gr1);
90 if (ret < 0)
91 return ret;
92
93 /* set the general regs */
94 ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
95 &iregs->gr[1], offs_gr1, sizeof(*iregs));
96 if (ret < 0)
97 return ret;
98
99 return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
100 sizeof(*iregs), -1);
101}
102
103/*
104 * retrieve the contents of FRV userspace FP/Media registers
105 */
106static int fpmregs_get(struct task_struct *target,
107 const struct user_regset *regset,
108 unsigned int pos, unsigned int count,
109 void *kbuf, void __user *ubuf)
110{
111 const struct user_fpmedia_regs *fpregs = &target->thread.user->f;
112 int ret;
113
114 ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
115 fpregs, 0, sizeof(*fpregs));
116 if (ret < 0)
117 return ret;
118
119 return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
120 sizeof(*fpregs), -1);
121}
122
123/*
124 * update the contents of the FRV userspace FP/Media registers
125 */
126static int fpmregs_set(struct task_struct *target,
127 const struct user_regset *regset,
128 unsigned int pos, unsigned int count,
129 const void *kbuf, const void __user *ubuf)
130{
131 struct user_fpmedia_regs *fpregs = &target->thread.user->f;
132 int ret;
133
134 ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
135 fpregs, 0, sizeof(*fpregs));
136 if (ret < 0)
137 return ret;
138
139 return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
140 sizeof(*fpregs), -1);
141}
142
143/*
144 * determine if the FP/Media registers have actually been used
145 */
146static int fpmregs_active(struct task_struct *target,
147 const struct user_regset *regset)
148{
149 return tsk_used_math(target) ? regset->n : 0;
150}
151
152/*
153 * Define the register sets available on the FRV under Linux
154 */
155enum frv_regset {
156 REGSET_GENERAL,
157 REGSET_FPMEDIA,
158};
159
160static const struct user_regset frv_regsets[] = {
161 /*
162 * General register format is:
163 * PSR, ISR, CCR, CCCR, LR, LCR, PC, (STATUS), SYSCALLNO, ORIG_G8
164 * GNER0-1, IACC0, TBR, GR1-63
165 */
166 [REGSET_GENERAL] = {
167 .core_note_type = NT_PRSTATUS,
168 .n = ELF_NGREG,
169 .size = sizeof(long),
170 .align = sizeof(long),
171 .get = genregs_get,
172 .set = genregs_set,
173 },
174 /*
175 * FPU/Media register format is:
176 * FR0-63, FNER0-1, MSR0-1, ACC0-7, ACCG0-8, FSR
177 */
178 [REGSET_FPMEDIA] = {
179 .core_note_type = NT_PRFPREG,
180 .n = sizeof(struct user_fpmedia_regs) / sizeof(long),
181 .size = sizeof(long),
182 .align = sizeof(long),
183 .get = fpmregs_get,
184 .set = fpmregs_set,
185 .active = fpmregs_active,
186 },
187};
188
189static const struct user_regset_view user_frv_native_view = {
190 .name = "frv",
191 .e_machine = EM_FRV,
192 .regsets = frv_regsets,
193 .n = ARRAY_SIZE(frv_regsets),
194};
195
196const struct user_regset_view *task_user_regset_view(struct task_struct *task)
197{
198 return &user_frv_native_view;
199}
200
201/*
36 * Get contents of register REGNO in task TASK. 202 * Get contents of register REGNO in task TASK.
37 */ 203 */
38static inline long get_reg(struct task_struct *task, int regno) 204static inline long get_reg(struct task_struct *task, int regno)
@@ -69,40 +235,23 @@ static inline int put_reg(struct task_struct *task, int regno,
69} 235}
70 236
71/* 237/*
72 * check that an address falls within the bounds of the target process's memory
73 * mappings
74 */
75static inline int is_user_addr_valid(struct task_struct *child,
76 unsigned long start, unsigned long len)
77{
78#ifdef CONFIG_MMU
79 if (start >= PAGE_OFFSET || len > PAGE_OFFSET - start)
80 return -EIO;
81 return 0;
82#else
83 struct vm_area_struct *vma;
84
85 vma = find_vma(child->mm, start);
86 if (vma && start >= vma->vm_start && start + len <= vma->vm_end)
87 return 0;
88
89 return -EIO;
90#endif
91}
92
93/*
94 * Called by kernel/ptrace.c when detaching.. 238 * Called by kernel/ptrace.c when detaching..
95 * 239 *
96 * Control h/w single stepping 240 * Control h/w single stepping
97 */ 241 */
98void ptrace_disable(struct task_struct *child) 242void user_enable_single_step(struct task_struct *child)
243{
244 child->thread.frame0->__status |= REG__STATUS_STEP;
245}
246
247void user_disable_single_step(struct task_struct *child)
99{ 248{
100 child->thread.frame0->__status &= ~REG__STATUS_STEP; 249 child->thread.frame0->__status &= ~REG__STATUS_STEP;
101} 250}
102 251
103void ptrace_enable(struct task_struct *child) 252void ptrace_disable(struct task_struct *child)
104{ 253{
105 child->thread.frame0->__status |= REG__STATUS_STEP; 254 user_disable_single_step(child);
106} 255}
107 256
108long arch_ptrace(struct task_struct *child, long request, long addr, long data) 257long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -111,15 +260,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
111 int ret; 260 int ret;
112 261
113 switch (request) { 262 switch (request) {
114 /* when I and D space are separate, these will need to be fixed. */
115 case PTRACE_PEEKTEXT: /* read word at location addr. */
116 case PTRACE_PEEKDATA:
117 ret = -EIO;
118 if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
119 break;
120 ret = generic_ptrace_peekdata(child, addr, data);
121 break;
122
123 /* read the word at location addr in the USER area. */ 263 /* read the word at location addr in the USER area. */
124 case PTRACE_PEEKUSR: { 264 case PTRACE_PEEKUSR: {
125 tmp = 0; 265 tmp = 0;
@@ -163,15 +303,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
163 break; 303 break;
164 } 304 }
165 305
166 /* when I and D space are separate, this will have to be fixed. */
167 case PTRACE_POKETEXT: /* write the word at location addr. */
168 case PTRACE_POKEDATA:
169 ret = -EIO;
170 if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
171 break;
172 ret = generic_ptrace_pokedata(child, addr, data);
173 break;
174
175 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ 306 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
176 ret = -EIO; 307 ret = -EIO;
177 if ((addr & 3) || addr < 0) 308 if ((addr & 3) || addr < 0)
@@ -179,7 +310,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
179 310
180 ret = 0; 311 ret = 0;
181 switch (addr >> 2) { 312 switch (addr >> 2) {
182 case 0 ... PT__END-1: 313 case 0 ... PT__END - 1:
183 ret = put_reg(child, addr >> 2, data); 314 ret = put_reg(child, addr >> 2, data);
184 break; 315 break;
185 316
@@ -189,95 +320,29 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
189 } 320 }
190 break; 321 break;
191 322
192 case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ 323 case PTRACE_GETREGS: /* Get all integer regs from the child. */
193 case PTRACE_CONT: /* restart after signal. */ 324 return copy_regset_to_user(child, &user_frv_native_view,
194 ret = -EIO; 325 REGSET_GENERAL,
195 if (!valid_signal(data)) 326 0, sizeof(child->thread.user->i),
196 break; 327 (void __user *)data);
197 if (request == PTRACE_SYSCALL) 328
198 set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); 329 case PTRACE_SETREGS: /* Set all integer regs in the child. */
199 else 330 return copy_regset_from_user(child, &user_frv_native_view,
200 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); 331 REGSET_GENERAL,
201 child->exit_code = data; 332 0, sizeof(child->thread.user->i),
202 ptrace_disable(child); 333 (const void __user *)data);
203 wake_up_process(child); 334
204 ret = 0; 335 case PTRACE_GETFPREGS: /* Get the child FP/Media state. */
205 break; 336 return copy_regset_to_user(child, &user_frv_native_view,
206 337 REGSET_FPMEDIA,
207 /* make the child exit. Best I can do is send it a sigkill. 338 0, sizeof(child->thread.user->f),
208 * perhaps it should be put in the status that it wants to 339 (void __user *)data);
209 * exit. 340
210 */ 341 case PTRACE_SETFPREGS: /* Set the child FP/Media state. */
211 case PTRACE_KILL: 342 return copy_regset_from_user(child, &user_frv_native_view,
212 ret = 0; 343 REGSET_FPMEDIA,
213 if (child->exit_state == EXIT_ZOMBIE) /* already dead */ 344 0, sizeof(child->thread.user->f),
214 break; 345 (const void __user *)data);
215 child->exit_code = SIGKILL;
216 clear_tsk_thread_flag(child, TIF_SINGLESTEP);
217 ptrace_disable(child);
218 wake_up_process(child);
219 break;
220
221 case PTRACE_SINGLESTEP: /* set the trap flag. */
222 ret = -EIO;
223 if (!valid_signal(data))
224 break;
225 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
226 ptrace_enable(child);
227 child->exit_code = data;
228 wake_up_process(child);
229 ret = 0;
230 break;
231
232 case PTRACE_DETACH: /* detach a process that was attached. */
233 ret = ptrace_detach(child, data);
234 break;
235
236 case PTRACE_GETREGS: { /* Get all integer regs from the child. */
237 int i;
238 for (i = 0; i < PT__GPEND; i++) {
239 tmp = get_reg(child, i);
240 if (put_user(tmp, (unsigned long *) data)) {
241 ret = -EFAULT;
242 break;
243 }
244 data += sizeof(long);
245 }
246 ret = 0;
247 break;
248 }
249
250 case PTRACE_SETREGS: { /* Set all integer regs in the child. */
251 int i;
252 for (i = 0; i < PT__GPEND; i++) {
253 if (get_user(tmp, (unsigned long *) data)) {
254 ret = -EFAULT;
255 break;
256 }
257 put_reg(child, i, tmp);
258 data += sizeof(long);
259 }
260 ret = 0;
261 break;
262 }
263
264 case PTRACE_GETFPREGS: { /* Get the child FP/Media state. */
265 ret = 0;
266 if (copy_to_user((void *) data,
267 &child->thread.user->f,
268 sizeof(child->thread.user->f)))
269 ret = -EFAULT;
270 break;
271 }
272
273 case PTRACE_SETFPREGS: { /* Set the child FP/Media state. */
274 ret = 0;
275 if (copy_from_user(&child->thread.user->f,
276 (void *) data,
277 sizeof(child->thread.user->f)))
278 ret = -EFAULT;
279 break;
280 }
281 346
282 case PTRACE_GETFDPIC: 347 case PTRACE_GETFDPIC:
283 tmp = 0; 348 tmp = 0;
@@ -300,414 +365,36 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
300 break; 365 break;
301 366
302 default: 367 default:
303 ret = -EIO; 368 ret = ptrace_request(child, request, addr, data);
304 break; 369 break;
305 } 370 }
306 return ret; 371 return ret;
307} 372}
308 373
309int __nongprelbss kstrace; 374/*
310 375 * handle tracing of system call entry
311static const struct { 376 * - return the revised system call number or ULONG_MAX to cause ENOSYS
312 const char *name; 377 */
313 unsigned argmask; 378asmlinkage unsigned long syscall_trace_entry(void)
314} __syscall_name_table[NR_syscalls] = {
315 [0] = { "restart_syscall" },
316 [1] = { "exit", 0x000001 },
317 [2] = { "fork", 0xffffff },
318 [3] = { "read", 0x000141 },
319 [4] = { "write", 0x000141 },
320 [5] = { "open", 0x000235 },
321 [6] = { "close", 0x000001 },
322 [7] = { "waitpid", 0x000141 },
323 [8] = { "creat", 0x000025 },
324 [9] = { "link", 0x000055 },
325 [10] = { "unlink", 0x000005 },
326 [11] = { "execve", 0x000445 },
327 [12] = { "chdir", 0x000005 },
328 [13] = { "time", 0x000004 },
329 [14] = { "mknod", 0x000325 },
330 [15] = { "chmod", 0x000025 },
331 [16] = { "lchown", 0x000025 },
332 [17] = { "break" },
333 [18] = { "oldstat", 0x000045 },
334 [19] = { "lseek", 0x000131 },
335 [20] = { "getpid", 0xffffff },
336 [21] = { "mount", 0x043555 },
337 [22] = { "umount", 0x000005 },
338 [23] = { "setuid", 0x000001 },
339 [24] = { "getuid", 0xffffff },
340 [25] = { "stime", 0x000004 },
341 [26] = { "ptrace", 0x004413 },
342 [27] = { "alarm", 0x000001 },
343 [28] = { "oldfstat", 0x000041 },
344 [29] = { "pause", 0xffffff },
345 [30] = { "utime", 0x000045 },
346 [31] = { "stty" },
347 [32] = { "gtty" },
348 [33] = { "access", 0x000025 },
349 [34] = { "nice", 0x000001 },
350 [35] = { "ftime" },
351 [36] = { "sync", 0xffffff },
352 [37] = { "kill", 0x000011 },
353 [38] = { "rename", 0x000055 },
354 [39] = { "mkdir", 0x000025 },
355 [40] = { "rmdir", 0x000005 },
356 [41] = { "dup", 0x000001 },
357 [42] = { "pipe", 0x000004 },
358 [43] = { "times", 0x000004 },
359 [44] = { "prof" },
360 [45] = { "brk", 0x000004 },
361 [46] = { "setgid", 0x000001 },
362 [47] = { "getgid", 0xffffff },
363 [48] = { "signal", 0x000041 },
364 [49] = { "geteuid", 0xffffff },
365 [50] = { "getegid", 0xffffff },
366 [51] = { "acct", 0x000005 },
367 [52] = { "umount2", 0x000035 },
368 [53] = { "lock" },
369 [54] = { "ioctl", 0x000331 },
370 [55] = { "fcntl", 0x000331 },
371 [56] = { "mpx" },
372 [57] = { "setpgid", 0x000011 },
373 [58] = { "ulimit" },
374 [60] = { "umask", 0x000002 },
375 [61] = { "chroot", 0x000005 },
376 [62] = { "ustat", 0x000043 },
377 [63] = { "dup2", 0x000011 },
378 [64] = { "getppid", 0xffffff },
379 [65] = { "getpgrp", 0xffffff },
380 [66] = { "setsid", 0xffffff },
381 [67] = { "sigaction" },
382 [68] = { "sgetmask" },
383 [69] = { "ssetmask" },
384 [70] = { "setreuid" },
385 [71] = { "setregid" },
386 [72] = { "sigsuspend" },
387 [73] = { "sigpending" },
388 [74] = { "sethostname" },
389 [75] = { "setrlimit" },
390 [76] = { "getrlimit" },
391 [77] = { "getrusage" },
392 [78] = { "gettimeofday" },
393 [79] = { "settimeofday" },
394 [80] = { "getgroups" },
395 [81] = { "setgroups" },
396 [82] = { "select" },
397 [83] = { "symlink" },
398 [84] = { "oldlstat" },
399 [85] = { "readlink" },
400 [86] = { "uselib" },
401 [87] = { "swapon" },
402 [88] = { "reboot" },
403 [89] = { "readdir" },
404 [91] = { "munmap", 0x000034 },
405 [92] = { "truncate" },
406 [93] = { "ftruncate" },
407 [94] = { "fchmod" },
408 [95] = { "fchown" },
409 [96] = { "getpriority" },
410 [97] = { "setpriority" },
411 [99] = { "statfs" },
412 [100] = { "fstatfs" },
413 [102] = { "socketcall" },
414 [103] = { "syslog" },
415 [104] = { "setitimer" },
416 [105] = { "getitimer" },
417 [106] = { "stat" },
418 [107] = { "lstat" },
419 [108] = { "fstat" },
420 [111] = { "vhangup" },
421 [114] = { "wait4" },
422 [115] = { "swapoff" },
423 [116] = { "sysinfo" },
424 [117] = { "ipc" },
425 [118] = { "fsync" },
426 [119] = { "sigreturn" },
427 [120] = { "clone" },
428 [121] = { "setdomainname" },
429 [122] = { "uname" },
430 [123] = { "modify_ldt" },
431 [123] = { "cacheflush" },
432 [124] = { "adjtimex" },
433 [125] = { "mprotect" },
434 [126] = { "sigprocmask" },
435 [127] = { "create_module" },
436 [128] = { "init_module" },
437 [129] = { "delete_module" },
438 [130] = { "get_kernel_syms" },
439 [131] = { "quotactl" },
440 [132] = { "getpgid" },
441 [133] = { "fchdir" },
442 [134] = { "bdflush" },
443 [135] = { "sysfs" },
444 [136] = { "personality" },
445 [137] = { "afs_syscall" },
446 [138] = { "setfsuid" },
447 [139] = { "setfsgid" },
448 [140] = { "_llseek", 0x014331 },
449 [141] = { "getdents" },
450 [142] = { "_newselect", 0x000141 },
451 [143] = { "flock" },
452 [144] = { "msync" },
453 [145] = { "readv" },
454 [146] = { "writev" },
455 [147] = { "getsid", 0x000001 },
456 [148] = { "fdatasync", 0x000001 },
457 [149] = { "_sysctl", 0x000004 },
458 [150] = { "mlock" },
459 [151] = { "munlock" },
460 [152] = { "mlockall" },
461 [153] = { "munlockall" },
462 [154] = { "sched_setparam" },
463 [155] = { "sched_getparam" },
464 [156] = { "sched_setscheduler" },
465 [157] = { "sched_getscheduler" },
466 [158] = { "sched_yield" },
467 [159] = { "sched_get_priority_max" },
468 [160] = { "sched_get_priority_min" },
469 [161] = { "sched_rr_get_interval" },
470 [162] = { "nanosleep", 0x000044 },
471 [163] = { "mremap" },
472 [164] = { "setresuid" },
473 [165] = { "getresuid" },
474 [166] = { "vm86" },
475 [167] = { "query_module" },
476 [168] = { "poll" },
477 [169] = { "nfsservctl" },
478 [170] = { "setresgid" },
479 [171] = { "getresgid" },
480 [172] = { "prctl", 0x333331 },
481 [173] = { "rt_sigreturn", 0xffffff },
482 [174] = { "rt_sigaction", 0x001441 },
483 [175] = { "rt_sigprocmask", 0x001441 },
484 [176] = { "rt_sigpending", 0x000014 },
485 [177] = { "rt_sigtimedwait", 0x001444 },
486 [178] = { "rt_sigqueueinfo", 0x000411 },
487 [179] = { "rt_sigsuspend", 0x000014 },
488 [180] = { "pread", 0x003341 },
489 [181] = { "pwrite", 0x003341 },
490 [182] = { "chown", 0x000115 },
491 [183] = { "getcwd" },
492 [184] = { "capget" },
493 [185] = { "capset" },
494 [186] = { "sigaltstack" },
495 [187] = { "sendfile" },
496 [188] = { "getpmsg" },
497 [189] = { "putpmsg" },
498 [190] = { "vfork", 0xffffff },
499 [191] = { "ugetrlimit" },
500 [192] = { "mmap2", 0x313314 },
501 [193] = { "truncate64" },
502 [194] = { "ftruncate64" },
503 [195] = { "stat64", 0x000045 },
504 [196] = { "lstat64", 0x000045 },
505 [197] = { "fstat64", 0x000041 },
506 [198] = { "lchown32" },
507 [199] = { "getuid32", 0xffffff },
508 [200] = { "getgid32", 0xffffff },
509 [201] = { "geteuid32", 0xffffff },
510 [202] = { "getegid32", 0xffffff },
511 [203] = { "setreuid32" },
512 [204] = { "setregid32" },
513 [205] = { "getgroups32" },
514 [206] = { "setgroups32" },
515 [207] = { "fchown32" },
516 [208] = { "setresuid32" },
517 [209] = { "getresuid32" },
518 [210] = { "setresgid32" },
519 [211] = { "getresgid32" },
520 [212] = { "chown32" },
521 [213] = { "setuid32" },
522 [214] = { "setgid32" },
523 [215] = { "setfsuid32" },
524 [216] = { "setfsgid32" },
525 [217] = { "pivot_root" },
526 [218] = { "mincore" },
527 [219] = { "madvise" },
528 [220] = { "getdents64" },
529 [221] = { "fcntl64" },
530 [223] = { "security" },
531 [224] = { "gettid" },
532 [225] = { "readahead" },
533 [226] = { "setxattr" },
534 [227] = { "lsetxattr" },
535 [228] = { "fsetxattr" },
536 [229] = { "getxattr" },
537 [230] = { "lgetxattr" },
538 [231] = { "fgetxattr" },
539 [232] = { "listxattr" },
540 [233] = { "llistxattr" },
541 [234] = { "flistxattr" },
542 [235] = { "removexattr" },
543 [236] = { "lremovexattr" },
544 [237] = { "fremovexattr" },
545 [238] = { "tkill" },
546 [239] = { "sendfile64" },
547 [240] = { "futex" },
548 [241] = { "sched_setaffinity" },
549 [242] = { "sched_getaffinity" },
550 [243] = { "set_thread_area" },
551 [244] = { "get_thread_area" },
552 [245] = { "io_setup" },
553 [246] = { "io_destroy" },
554 [247] = { "io_getevents" },
555 [248] = { "io_submit" },
556 [249] = { "io_cancel" },
557 [250] = { "fadvise64" },
558 [252] = { "exit_group", 0x000001 },
559 [253] = { "lookup_dcookie" },
560 [254] = { "epoll_create" },
561 [255] = { "epoll_ctl" },
562 [256] = { "epoll_wait" },
563 [257] = { "remap_file_pages" },
564 [258] = { "set_tid_address" },
565 [259] = { "timer_create" },
566 [260] = { "timer_settime" },
567 [261] = { "timer_gettime" },
568 [262] = { "timer_getoverrun" },
569 [263] = { "timer_delete" },
570 [264] = { "clock_settime" },
571 [265] = { "clock_gettime" },
572 [266] = { "clock_getres" },
573 [267] = { "clock_nanosleep" },
574 [268] = { "statfs64" },
575 [269] = { "fstatfs64" },
576 [270] = { "tgkill" },
577 [271] = { "utimes" },
578 [272] = { "fadvise64_64" },
579 [273] = { "vserver" },
580 [274] = { "mbind" },
581 [275] = { "get_mempolicy" },
582 [276] = { "set_mempolicy" },
583 [277] = { "mq_open" },
584 [278] = { "mq_unlink" },
585 [279] = { "mq_timedsend" },
586 [280] = { "mq_timedreceive" },
587 [281] = { "mq_notify" },
588 [282] = { "mq_getsetattr" },
589 [283] = { "sys_kexec_load" },
590};
591
592asmlinkage void do_syscall_trace(int leaving)
593{ 379{
594#if 0 380 __frame->__status |= REG__STATUS_SYSC_ENTRY;
595 unsigned long *argp; 381 if (tracehook_report_syscall_entry(__frame)) {
596 const char *name; 382 /* tracing decided this syscall should not happen, so
597 unsigned argmask; 383 * We'll return a bogus call number to get an ENOSYS
598 char buffer[16]; 384 * error, but leave the original number in
599 385 * __frame->syscallno
600 if (!kstrace) 386 */
601 return; 387 return ULONG_MAX;
602
603 if (!current->mm)
604 return;
605
606 if (__frame->gr7 == __NR_close)
607 return;
608
609#if 0
610 if (__frame->gr7 != __NR_mmap2 &&
611 __frame->gr7 != __NR_vfork &&
612 __frame->gr7 != __NR_execve &&
613 __frame->gr7 != __NR_exit)
614 return;
615#endif
616
617 argmask = 0;
618 name = NULL;
619 if (__frame->gr7 < NR_syscalls) {
620 name = __syscall_name_table[__frame->gr7].name;
621 argmask = __syscall_name_table[__frame->gr7].argmask;
622 }
623 if (!name) {
624 sprintf(buffer, "sys_%lx", __frame->gr7);
625 name = buffer;
626 }
627
628 if (!leaving) {
629 if (!argmask) {
630 printk(KERN_CRIT "[%d] %s(%lx,%lx,%lx,%lx,%lx,%lx)\n",
631 current->pid,
632 name,
633 __frame->gr8,
634 __frame->gr9,
635 __frame->gr10,
636 __frame->gr11,
637 __frame->gr12,
638 __frame->gr13);
639 }
640 else if (argmask == 0xffffff) {
641 printk(KERN_CRIT "[%d] %s()\n",
642 current->pid,
643 name);
644 }
645 else {
646 printk(KERN_CRIT "[%d] %s(",
647 current->pid,
648 name);
649
650 argp = &__frame->gr8;
651
652 do {
653 switch (argmask & 0xf) {
654 case 1:
655 printk("%ld", (long) *argp);
656 break;
657 case 2:
658 printk("%lo", *argp);
659 break;
660 case 3:
661 printk("%lx", *argp);
662 break;
663 case 4:
664 printk("%p", (void *) *argp);
665 break;
666 case 5:
667 printk("\"%s\"", (char *) *argp);
668 break;
669 }
670
671 argp++;
672 argmask >>= 4;
673 if (argmask)
674 printk(",");
675
676 } while (argmask);
677
678 printk(")\n");
679 }
680 }
681 else {
682 if ((int)__frame->gr8 > -4096 && (int)__frame->gr8 < 4096)
683 printk(KERN_CRIT "[%d] %s() = %ld\n", current->pid, name, __frame->gr8);
684 else
685 printk(KERN_CRIT "[%d] %s() = %lx\n", current->pid, name, __frame->gr8);
686 } 388 }
687 return;
688#endif
689
690 if (!test_thread_flag(TIF_SYSCALL_TRACE))
691 return;
692
693 if (!(current->ptrace & PT_PTRACED))
694 return;
695 389
696 /* we need to indicate entry or exit to strace */ 390 return __frame->syscallno;
697 if (leaving) 391}
698 __frame->__status |= REG__STATUS_SYSC_EXIT;
699 else
700 __frame->__status |= REG__STATUS_SYSC_ENTRY;
701
702 ptrace_notify(SIGTRAP);
703 392
704 /* 393/*
705 * this isn't the same as continuing with a signal, but it will do 394 * handle tracing of system call exit
706 * for normal use. strace only continues with a signal if the 395 */
707 * stopping signal is not SIGTRAP. -brl 396asmlinkage void syscall_trace_exit(void)
708 */ 397{
709 if (current->exit_code) { 398 __frame->__status |= REG__STATUS_SYSC_EXIT;
710 send_sig(current->exit_code, current, 1); 399 tracehook_report_syscall_exit(__frame, 0);
711 current->exit_code = 0;
712 }
713} 400}
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 3bdb368292a8..4a7a62c6e783 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -21,6 +21,7 @@
21#include <linux/unistd.h> 21#include <linux/unistd.h>
22#include <linux/personality.h> 22#include <linux/personality.h>
23#include <linux/freezer.h> 23#include <linux/freezer.h>
24#include <linux/tracehook.h>
24#include <asm/ucontext.h> 25#include <asm/ucontext.h>
25#include <asm/uaccess.h> 26#include <asm/uaccess.h>
26#include <asm/cacheflush.h> 27#include <asm/cacheflush.h>
@@ -516,6 +517,9 @@ static void do_signal(void)
516 * clear the TIF_RESTORE_SIGMASK flag */ 517 * clear the TIF_RESTORE_SIGMASK flag */
517 if (test_thread_flag(TIF_RESTORE_SIGMASK)) 518 if (test_thread_flag(TIF_RESTORE_SIGMASK))
518 clear_thread_flag(TIF_RESTORE_SIGMASK); 519 clear_thread_flag(TIF_RESTORE_SIGMASK);
520
521 tracehook_signal_handler(signr, &info, &ka, __frame,
522 test_thread_flag(TIF_SINGLESTEP));
519 } 523 }
520 524
521 return; 525 return;
@@ -564,4 +568,10 @@ asmlinkage void do_notify_resume(__u32 thread_info_flags)
564 if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) 568 if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
565 do_signal(); 569 do_signal();
566 570
571 /* deal with notification on about to resume userspace execution */
572 if (thread_info_flags & _TIF_NOTIFY_RESUME) {
573 clear_thread_flag(TIF_NOTIFY_RESUME);
574 tracehook_notify_resume(__frame);
575 }
576
567} /* end do_notify_resume() */ 577} /* end do_notify_resume() */
diff --git a/arch/frv/kernel/uaccess.c b/arch/frv/kernel/uaccess.c
index 9fb771a20df3..374f88d6cc00 100644
--- a/arch/frv/kernel/uaccess.c
+++ b/arch/frv/kernel/uaccess.c
@@ -23,8 +23,7 @@ long strncpy_from_user(char *dst, const char __user *src, long count)
23 char *p, ch; 23 char *p, ch;
24 long err = -EFAULT; 24 long err = -EFAULT;
25 25
26 if (count < 0) 26 BUG_ON(count < 0);
27 BUG();
28 27
29 p = dst; 28 p = dst;
30 29
@@ -76,8 +75,7 @@ long strnlen_user(const char __user *src, long count)
76 long err = 0; 75 long err = 0;
77 char ch; 76 char ch;
78 77
79 if (count < 0) 78 BUG_ON(count < 0);
80 BUG();
81 79
82#ifndef CONFIG_MMU 80#ifndef CONFIG_MMU
83 if ((unsigned long) src < memory_start) 81 if ((unsigned long) src < memory_start)
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-07 21:14:56 -0500