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Commit | Line | Data |
---|---|---|
31e31b8a | 1 | /* |
93ac68bc | 2 | * qemu user main |
5fafdf24 | 3 | * |
68d0f70e | 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
31e31b8a FB |
5 | * |
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. | |
10 | * | |
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. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
8167ee88 | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
31e31b8a | 18 | */ |
14a48c1d | 19 | |
d39594e9 | 20 | #include "qemu/osdep.h" |
49f95221 | 21 | #include "qemu/help-texts.h" |
b52713c1 | 22 | #include "qemu/units.h" |
940e43aa | 23 | #include "qemu/accel.h" |
67a1de0d | 24 | #include "qemu-version.h" |
edf8e2af | 25 | #include <sys/syscall.h> |
703e0e89 | 26 | #include <sys/resource.h> |
ee947430 | 27 | #include <sys/shm.h> |
6e1c0d7b | 28 | #include <linux/binfmts.h> |
31e31b8a | 29 | |
daa76aa4 | 30 | #include "qapi/error.h" |
3ef693a0 | 31 | #include "qemu.h" |
3b249d26 | 32 | #include "user-internals.h" |
f348b6d1 | 33 | #include "qemu/path.h" |
dc5e9ac7 | 34 | #include "qemu/queue.h" |
6533dd6e | 35 | #include "qemu/config-file.h" |
f348b6d1 | 36 | #include "qemu/cutils.h" |
f5852efa | 37 | #include "qemu/error-report.h" |
f348b6d1 | 38 | #include "qemu/help_option.h" |
0b8fa32f | 39 | #include "qemu/module.h" |
f308f64e | 40 | #include "qemu/plugin.h" |
63c91552 | 41 | #include "exec/exec-all.h" |
85b4fa0c | 42 | #include "exec/gdbstub.h" |
d96bf49b | 43 | #include "gdbstub/user.h" |
d7ec12f8 | 44 | #include "tcg/startup.h" |
1de7afc9 PB |
45 | #include "qemu/timer.h" |
46 | #include "qemu/envlist.h" | |
5ebdd774 | 47 | #include "qemu/guest-random.h" |
d8fd2954 | 48 | #include "elf.h" |
6533dd6e | 49 | #include "trace/control.h" |
542ca434 | 50 | #include "target_elf.h" |
cd71c089 | 51 | #include "cpu_loop-common.h" |
a573e9ba | 52 | #include "crypto/init.h" |
c093364f | 53 | #include "fd-trans.h" |
2113aed6 | 54 | #include "signal-common.h" |
3ad0a769 | 55 | #include "loader.h" |
5423e6d3 | 56 | #include "user-mmap.h" |
327b75a4 | 57 | #include "tcg/perf.h" |
ff8a8bbc | 58 | #include "exec/page-vary.h" |
04a6dfeb | 59 | |
e4a4aaa5 RH |
60 | #ifdef CONFIG_SEMIHOSTING |
61 | #include "semihosting/semihost.h" | |
62 | #endif | |
63 | ||
6e1c0d7b LV |
64 | #ifndef AT_FLAGS_PRESERVE_ARGV0 |
65 | #define AT_FLAGS_PRESERVE_ARGV0_BIT 0 | |
66 | #define AT_FLAGS_PRESERVE_ARGV0 (1 << AT_FLAGS_PRESERVE_ARGV0_BIT) | |
67 | #endif | |
68 | ||
d088d664 | 69 | char *exec_path; |
258bec39 | 70 | char real_exec_path[PATH_MAX]; |
d088d664 | 71 | |
3cfb0456 | 72 | static bool opt_one_insn_per_tb; |
8cb76755 | 73 | static const char *argv0; |
fcedd920 | 74 | static const char *gdbstub; |
8cb76755 | 75 | static envlist_t *envlist; |
51fb256a | 76 | static const char *cpu_model; |
2278b939 | 77 | static const char *cpu_type; |
5ebdd774 | 78 | static const char *seed_optarg; |
379f6698 | 79 | unsigned long mmap_min_addr; |
5ca870b9 | 80 | uintptr_t guest_base; |
e307c192 | 81 | bool have_guest_base; |
120a9848 | 82 | |
4b25a506 JK |
83 | /* |
84 | * Used to implement backwards-compatibility for the `-strace`, and | |
85 | * QEMU_STRACE options. Without this, the QEMU_LOG can be overwritten by | |
86 | * -strace, or vice versa. | |
87 | */ | |
88 | static bool enable_strace; | |
89 | ||
90 | /* | |
91 | * The last log mask given by the user in an environment variable or argument. | |
92 | * Used to support command line arguments overriding environment variables. | |
93 | */ | |
94 | static int last_log_mask; | |
b410253f | 95 | static const char *last_log_filename; |
4b25a506 | 96 | |
288e65b9 AG |
97 | /* |
98 | * When running 32-on-64 we should make sure we can fit all of the possible | |
99 | * guest address space into a contiguous chunk of virtual host memory. | |
100 | * | |
101 | * This way we will never overlap with our own libraries or binaries or stack | |
102 | * or anything else that QEMU maps. | |
18e80c55 RH |
103 | * |
104 | * Many cpus reserve the high bit (or more than one for some 64-bit cpus) | |
105 | * of the address for the kernel. Some cpus rely on this and user space | |
106 | * uses the high bit(s) for pointer tagging and the like. For them, we | |
107 | * must preserve the expected address space. | |
288e65b9 | 108 | */ |
18e80c55 RH |
109 | #ifndef MAX_RESERVED_VA |
110 | # if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS | |
111 | # if TARGET_VIRT_ADDR_SPACE_BITS == 32 && \ | |
112 | (TARGET_LONG_BITS == 32 || defined(TARGET_ABI32)) | |
95059f9c | 113 | # define MAX_RESERVED_VA(CPU) 0xfffffffful |
18e80c55 | 114 | # else |
95059f9c | 115 | # define MAX_RESERVED_VA(CPU) ((1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1) |
18e80c55 | 116 | # endif |
314992b1 | 117 | # else |
8f67b9c6 | 118 | # define MAX_RESERVED_VA(CPU) 0 |
314992b1 | 119 | # endif |
18e80c55 RH |
120 | #endif |
121 | ||
68a1c816 | 122 | unsigned long reserved_va; |
1b530a6d | 123 | |
d03f9c32 | 124 | static void usage(int exitcode); |
fc9c5412 | 125 | |
7ee2822c | 126 | static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX; |
e586822a | 127 | const char *qemu_uname_release; |
586314f2 | 128 | |
0a3346b5 | 129 | #if !defined(TARGET_DEFAULT_STACK_SIZE) |
9de5e440 FB |
130 | /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
131 | we allocate a bigger stack. Need a better solution, for example | |
132 | by remapping the process stack directly at the right place */ | |
0a3346b5 HD |
133 | #define TARGET_DEFAULT_STACK_SIZE 8 * 1024 * 1024UL |
134 | #endif | |
135 | ||
136 | unsigned long guest_stack_size = TARGET_DEFAULT_STACK_SIZE; | |
31e31b8a | 137 | |
d5975363 PB |
138 | /***********************************************************/ |
139 | /* Helper routines for implementing atomic operations. */ | |
140 | ||
d5975363 PB |
141 | /* Make sure everything is in a consistent state for calling fork(). */ |
142 | void fork_start(void) | |
143 | { | |
06065c45 | 144 | start_exclusive(); |
d032d1b4 | 145 | mmap_fork_start(); |
024949ca | 146 | cpu_list_lock(); |
f7e15aff | 147 | qemu_plugin_user_prefork_lock(); |
3d6ed98d | 148 | gdbserver_fork_start(); |
d5975363 PB |
149 | } |
150 | ||
4edc98fc | 151 | void fork_end(pid_t pid) |
d5975363 | 152 | { |
4edc98fc IL |
153 | bool child = pid == 0; |
154 | ||
f7e15aff | 155 | qemu_plugin_user_postfork(child); |
d032d1b4 | 156 | mmap_fork_end(child); |
d5975363 | 157 | if (child) { |
bdc44640 | 158 | CPUState *cpu, *next_cpu; |
d5975363 PB |
159 | /* Child processes created by fork() only have a single thread. |
160 | Discard information about the parent threads. */ | |
bdc44640 AF |
161 | CPU_FOREACH_SAFE(cpu, next_cpu) { |
162 | if (cpu != thread_cpu) { | |
3c55dd58 | 163 | QTAILQ_REMOVE_RCU(&cpus_queue, cpu, node); |
bdc44640 AF |
164 | } |
165 | } | |
267f685b | 166 | qemu_init_cpu_list(); |
d4e1369a | 167 | get_task_state(thread_cpu)->ts_tid = qemu_get_thread_id(); |
d5975363 | 168 | } else { |
267f685b | 169 | cpu_list_unlock(); |
d5975363 | 170 | } |
6604b057 | 171 | gdbserver_fork_end(thread_cpu, pid); |
7de0816f IL |
172 | /* |
173 | * qemu_init_cpu_list() reinitialized the child exclusive state, but we | |
174 | * also need to keep current_cpu consistent, so call end_exclusive() for | |
175 | * both child and parent. | |
176 | */ | |
177 | end_exclusive(); | |
d5975363 PB |
178 | } |
179 | ||
b44316fb | 180 | __thread CPUState *thread_cpu; |
59faf6d6 | 181 | |
178f9429 SF |
182 | bool qemu_cpu_is_self(CPUState *cpu) |
183 | { | |
184 | return thread_cpu == cpu; | |
185 | } | |
186 | ||
187 | void qemu_cpu_kick(CPUState *cpu) | |
188 | { | |
189 | cpu_exit(cpu); | |
190 | } | |
191 | ||
edf8e2af MW |
192 | void task_settid(TaskState *ts) |
193 | { | |
194 | if (ts->ts_tid == 0) { | |
edf8e2af | 195 | ts->ts_tid = (pid_t)syscall(SYS_gettid); |
edf8e2af MW |
196 | } |
197 | } | |
198 | ||
199 | void stop_all_tasks(void) | |
200 | { | |
201 | /* | |
202 | * We trust that when using NPTL, start_exclusive() | |
203 | * handles thread stopping correctly. | |
204 | */ | |
205 | start_exclusive(); | |
206 | } | |
207 | ||
c3a92833 | 208 | /* Assumes contents are already zeroed. */ |
624f7979 PB |
209 | void init_task_state(TaskState *ts) |
210 | { | |
eb33cdae CE |
211 | long ticks_per_sec; |
212 | struct timespec bt; | |
213 | ||
624f7979 | 214 | ts->used = 1; |
5bfce0b7 PM |
215 | ts->sigaltstack_used = (struct target_sigaltstack) { |
216 | .ss_sp = 0, | |
217 | .ss_size = 0, | |
218 | .ss_flags = TARGET_SS_DISABLE, | |
219 | }; | |
eb33cdae CE |
220 | |
221 | /* Capture task start time relative to system boot */ | |
222 | ||
223 | ticks_per_sec = sysconf(_SC_CLK_TCK); | |
224 | ||
225 | if ((ticks_per_sec > 0) && !clock_gettime(CLOCK_BOOTTIME, &bt)) { | |
226 | /* start_boottime is expressed in clock ticks */ | |
227 | ts->start_boottime = bt.tv_sec * (uint64_t) ticks_per_sec; | |
228 | ts->start_boottime += bt.tv_nsec * (uint64_t) ticks_per_sec / | |
229 | NANOSECONDS_PER_SECOND; | |
230 | } | |
624f7979 | 231 | } |
fc9c5412 | 232 | |
30ba0ee5 AF |
233 | CPUArchState *cpu_copy(CPUArchState *env) |
234 | { | |
29a0af61 | 235 | CPUState *cpu = env_cpu(env); |
2278b939 | 236 | CPUState *new_cpu = cpu_create(cpu_type); |
b77af26e | 237 | CPUArchState *new_env = cpu_env(new_cpu); |
30ba0ee5 | 238 | CPUBreakpoint *bp; |
30ba0ee5 AF |
239 | |
240 | /* Reset non arch specific state */ | |
75a34036 | 241 | cpu_reset(new_cpu); |
30ba0ee5 | 242 | |
6cc9d67c | 243 | new_cpu->tcg_cflags = cpu->tcg_cflags; |
30ba0ee5 | 244 | memcpy(new_env, env, sizeof(CPUArchState)); |
2732c739 | 245 | #if defined(TARGET_I386) || defined(TARGET_X86_64) |
246 | new_env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, | |
247 | PROT_READ | PROT_WRITE, | |
248 | MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); | |
249 | memcpy(g2h_untagged(new_env->gdt.base), g2h_untagged(env->gdt.base), | |
250 | sizeof(uint64_t) * TARGET_GDT_ENTRIES); | |
251 | OBJECT(new_cpu)->free = OBJECT(cpu)->free; | |
252 | #endif | |
30ba0ee5 AF |
253 | |
254 | /* Clone all break/watchpoints. | |
255 | Note: Once we support ptrace with hw-debug register access, make sure | |
256 | BP_CPU break/watchpoints are handled correctly on clone. */ | |
1d085f6c | 257 | QTAILQ_INIT(&new_cpu->breakpoints); |
f0c3c505 | 258 | QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) { |
b3310ab3 | 259 | cpu_breakpoint_insert(new_cpu, bp->pc, bp->flags, NULL); |
30ba0ee5 | 260 | } |
30ba0ee5 AF |
261 | |
262 | return new_env; | |
263 | } | |
264 | ||
fc9c5412 JS |
265 | static void handle_arg_help(const char *arg) |
266 | { | |
4d1275c2 | 267 | usage(EXIT_SUCCESS); |
fc9c5412 JS |
268 | } |
269 | ||
270 | static void handle_arg_log(const char *arg) | |
271 | { | |
4b25a506 JK |
272 | last_log_mask = qemu_str_to_log_mask(arg); |
273 | if (!last_log_mask) { | |
59a6fa6e | 274 | qemu_print_log_usage(stdout); |
4d1275c2 | 275 | exit(EXIT_FAILURE); |
fc9c5412 | 276 | } |
fc9c5412 JS |
277 | } |
278 | ||
8423fa90 AB |
279 | static void handle_arg_dfilter(const char *arg) |
280 | { | |
7f4341e8 | 281 | qemu_set_dfilter_ranges(arg, &error_fatal); |
8423fa90 AB |
282 | } |
283 | ||
50171d42 CWR |
284 | static void handle_arg_log_filename(const char *arg) |
285 | { | |
b410253f | 286 | last_log_filename = arg; |
50171d42 CWR |
287 | } |
288 | ||
fc9c5412 JS |
289 | static void handle_arg_set_env(const char *arg) |
290 | { | |
291 | char *r, *p, *token; | |
292 | r = p = strdup(arg); | |
293 | while ((token = strsep(&p, ",")) != NULL) { | |
294 | if (envlist_setenv(envlist, token) != 0) { | |
4d1275c2 | 295 | usage(EXIT_FAILURE); |
fc9c5412 JS |
296 | } |
297 | } | |
298 | free(r); | |
299 | } | |
300 | ||
301 | static void handle_arg_unset_env(const char *arg) | |
302 | { | |
303 | char *r, *p, *token; | |
304 | r = p = strdup(arg); | |
305 | while ((token = strsep(&p, ",")) != NULL) { | |
306 | if (envlist_unsetenv(envlist, token) != 0) { | |
4d1275c2 | 307 | usage(EXIT_FAILURE); |
fc9c5412 JS |
308 | } |
309 | } | |
310 | free(r); | |
311 | } | |
312 | ||
313 | static void handle_arg_argv0(const char *arg) | |
314 | { | |
315 | argv0 = strdup(arg); | |
316 | } | |
317 | ||
318 | static void handle_arg_stack_size(const char *arg) | |
319 | { | |
320 | char *p; | |
321 | guest_stack_size = strtoul(arg, &p, 0); | |
322 | if (guest_stack_size == 0) { | |
4d1275c2 | 323 | usage(EXIT_FAILURE); |
fc9c5412 JS |
324 | } |
325 | ||
326 | if (*p == 'M') { | |
b52713c1 | 327 | guest_stack_size *= MiB; |
fc9c5412 | 328 | } else if (*p == 'k' || *p == 'K') { |
b52713c1 | 329 | guest_stack_size *= KiB; |
fc9c5412 JS |
330 | } |
331 | } | |
332 | ||
333 | static void handle_arg_ld_prefix(const char *arg) | |
334 | { | |
335 | interp_prefix = strdup(arg); | |
336 | } | |
337 | ||
338 | static void handle_arg_pagesize(const char *arg) | |
339 | { | |
01e44980 RH |
340 | unsigned size, want = qemu_real_host_page_size(); |
341 | ||
342 | if (qemu_strtoui(arg, NULL, 10, &size) || size != want) { | |
343 | warn_report("Deprecated page size option cannot " | |
344 | "change host page size (%u)", want); | |
fc9c5412 JS |
345 | } |
346 | } | |
347 | ||
5ebdd774 | 348 | static void handle_arg_seed(const char *arg) |
c5e4a5a9 | 349 | { |
5ebdd774 | 350 | seed_optarg = arg; |
c5e4a5a9 MR |
351 | } |
352 | ||
fc9c5412 JS |
353 | static void handle_arg_gdb(const char *arg) |
354 | { | |
fcedd920 | 355 | gdbstub = g_strdup(arg); |
fc9c5412 JS |
356 | } |
357 | ||
358 | static void handle_arg_uname(const char *arg) | |
359 | { | |
360 | qemu_uname_release = strdup(arg); | |
361 | } | |
362 | ||
363 | static void handle_arg_cpu(const char *arg) | |
364 | { | |
365 | cpu_model = strdup(arg); | |
c8057f95 | 366 | if (cpu_model == NULL || is_help_option(cpu_model)) { |
b67e5cb4 | 367 | list_cpus(); |
4d1275c2 | 368 | exit(EXIT_FAILURE); |
fc9c5412 JS |
369 | } |
370 | } | |
371 | ||
fc9c5412 JS |
372 | static void handle_arg_guest_base(const char *arg) |
373 | { | |
374 | guest_base = strtol(arg, NULL, 0); | |
e307c192 | 375 | have_guest_base = true; |
fc9c5412 JS |
376 | } |
377 | ||
378 | static void handle_arg_reserved_va(const char *arg) | |
379 | { | |
380 | char *p; | |
381 | int shift = 0; | |
95059f9c RH |
382 | unsigned long val; |
383 | ||
384 | val = strtoul(arg, &p, 0); | |
fc9c5412 JS |
385 | switch (*p) { |
386 | case 'k': | |
387 | case 'K': | |
388 | shift = 10; | |
389 | break; | |
390 | case 'M': | |
391 | shift = 20; | |
392 | break; | |
393 | case 'G': | |
394 | shift = 30; | |
395 | break; | |
396 | } | |
397 | if (shift) { | |
95059f9c | 398 | unsigned long unshifted = val; |
fc9c5412 | 399 | p++; |
95059f9c RH |
400 | val <<= shift; |
401 | if (val >> shift != unshifted) { | |
fc9c5412 | 402 | fprintf(stderr, "Reserved virtual address too big\n"); |
4d1275c2 | 403 | exit(EXIT_FAILURE); |
fc9c5412 JS |
404 | } |
405 | } | |
406 | if (*p) { | |
407 | fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p); | |
4d1275c2 | 408 | exit(EXIT_FAILURE); |
fc9c5412 | 409 | } |
95059f9c RH |
410 | /* The representation is size - 1, with 0 remaining "default". */ |
411 | reserved_va = val ? val - 1 : 0; | |
fc9c5412 | 412 | } |
fc9c5412 | 413 | |
e99c1f89 | 414 | static void handle_arg_one_insn_per_tb(const char *arg) |
fc9c5412 | 415 | { |
3cfb0456 | 416 | opt_one_insn_per_tb = true; |
fc9c5412 JS |
417 | } |
418 | ||
419 | static void handle_arg_strace(const char *arg) | |
420 | { | |
4b25a506 | 421 | enable_strace = true; |
fc9c5412 JS |
422 | } |
423 | ||
424 | static void handle_arg_version(const char *arg) | |
425 | { | |
7e563bfb | 426 | printf("qemu-" TARGET_NAME " version " QEMU_FULL_VERSION |
0781dd6e | 427 | "\n" QEMU_COPYRIGHT "\n"); |
4d1275c2 | 428 | exit(EXIT_SUCCESS); |
fc9c5412 JS |
429 | } |
430 | ||
6533dd6e LV |
431 | static void handle_arg_trace(const char *arg) |
432 | { | |
92eecfff | 433 | trace_opt_parse(arg); |
6533dd6e LV |
434 | } |
435 | ||
130ea832 MF |
436 | #if defined(TARGET_XTENSA) |
437 | static void handle_arg_abi_call0(const char *arg) | |
438 | { | |
439 | xtensa_set_abi_call0(); | |
440 | } | |
441 | #endif | |
442 | ||
5584e2db IL |
443 | static void handle_arg_perfmap(const char *arg) |
444 | { | |
445 | perf_enable_perfmap(); | |
446 | } | |
447 | ||
448 | static void handle_arg_jitdump(const char *arg) | |
449 | { | |
450 | perf_enable_jitdump(); | |
451 | } | |
452 | ||
f308f64e LV |
453 | static QemuPluginList plugins = QTAILQ_HEAD_INITIALIZER(plugins); |
454 | ||
455 | #ifdef CONFIG_PLUGIN | |
456 | static void handle_arg_plugin(const char *arg) | |
457 | { | |
458 | qemu_plugin_opt_parse(arg, &plugins); | |
459 | } | |
460 | #endif | |
461 | ||
fc9c5412 JS |
462 | struct qemu_argument { |
463 | const char *argv; | |
464 | const char *env; | |
465 | bool has_arg; | |
466 | void (*handle_opt)(const char *arg); | |
467 | const char *example; | |
468 | const char *help; | |
469 | }; | |
470 | ||
42644cee | 471 | static const struct qemu_argument arg_table[] = { |
fc9c5412 JS |
472 | {"h", "", false, handle_arg_help, |
473 | "", "print this help"}, | |
daaf8c8e MI |
474 | {"help", "", false, handle_arg_help, |
475 | "", ""}, | |
fc9c5412 JS |
476 | {"g", "QEMU_GDB", true, handle_arg_gdb, |
477 | "port", "wait gdb connection to 'port'"}, | |
478 | {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix, | |
479 | "path", "set the elf interpreter prefix to 'path'"}, | |
480 | {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size, | |
481 | "size", "set the stack size to 'size' bytes"}, | |
482 | {"cpu", "QEMU_CPU", true, handle_arg_cpu, | |
c8057f95 | 483 | "model", "select CPU (-cpu help for list)"}, |
fc9c5412 JS |
484 | {"E", "QEMU_SET_ENV", true, handle_arg_set_env, |
485 | "var=value", "sets targets environment variable (see below)"}, | |
486 | {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env, | |
487 | "var", "unsets targets environment variable (see below)"}, | |
488 | {"0", "QEMU_ARGV0", true, handle_arg_argv0, | |
489 | "argv0", "forces target process argv[0] to be 'argv0'"}, | |
490 | {"r", "QEMU_UNAME", true, handle_arg_uname, | |
491 | "uname", "set qemu uname release string to 'uname'"}, | |
fc9c5412 JS |
492 | {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base, |
493 | "address", "set guest_base address to 'address'"}, | |
494 | {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va, | |
495 | "size", "reserve 'size' bytes for guest virtual address space"}, | |
fc9c5412 | 496 | {"d", "QEMU_LOG", true, handle_arg_log, |
989b697d PM |
497 | "item[,...]", "enable logging of specified items " |
498 | "(use '-d help' for a list of items)"}, | |
8423fa90 AB |
499 | {"dfilter", "QEMU_DFILTER", true, handle_arg_dfilter, |
500 | "range[,...]","filter logging based on address range"}, | |
50171d42 | 501 | {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename, |
989b697d | 502 | "logfile", "write logs to 'logfile' (default stderr)"}, |
fc9c5412 | 503 | {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize, |
01e44980 | 504 | "pagesize", "deprecated change to host page size"}, |
e99c1f89 PM |
505 | {"one-insn-per-tb", |
506 | "QEMU_ONE_INSN_PER_TB", false, handle_arg_one_insn_per_tb, | |
507 | "", "run with one guest instruction per emulated TB"}, | |
fc9c5412 JS |
508 | {"strace", "QEMU_STRACE", false, handle_arg_strace, |
509 | "", "log system calls"}, | |
5ebdd774 | 510 | {"seed", "QEMU_RAND_SEED", true, handle_arg_seed, |
c5e4a5a9 | 511 | "", "Seed for pseudo-random number generator"}, |
6533dd6e LV |
512 | {"trace", "QEMU_TRACE", true, handle_arg_trace, |
513 | "", "[[enable=]<pattern>][,events=<file>][,file=<file>]"}, | |
f308f64e LV |
514 | #ifdef CONFIG_PLUGIN |
515 | {"plugin", "QEMU_PLUGIN", true, handle_arg_plugin, | |
3a445acb | 516 | "", "[file=]<file>[,<argname>=<argvalue>]"}, |
f308f64e | 517 | #endif |
fc9c5412 | 518 | {"version", "QEMU_VERSION", false, handle_arg_version, |
1386d4c0 | 519 | "", "display version information and exit"}, |
130ea832 MF |
520 | #if defined(TARGET_XTENSA) |
521 | {"xtensa-abi-call0", "QEMU_XTENSA_ABI_CALL0", false, handle_arg_abi_call0, | |
522 | "", "assume CALL0 Xtensa ABI"}, | |
523 | #endif | |
5584e2db IL |
524 | {"perfmap", "QEMU_PERFMAP", false, handle_arg_perfmap, |
525 | "", "Generate a /tmp/perf-${pid}.map file for perf"}, | |
526 | {"jitdump", "QEMU_JITDUMP", false, handle_arg_jitdump, | |
527 | "", "Generate a jit-${pid}.dump file for perf"}, | |
fc9c5412 JS |
528 | {NULL, NULL, false, NULL, NULL, NULL} |
529 | }; | |
530 | ||
d03f9c32 | 531 | static void usage(int exitcode) |
fc9c5412 | 532 | { |
42644cee | 533 | const struct qemu_argument *arginfo; |
fc9c5412 JS |
534 | int maxarglen; |
535 | int maxenvlen; | |
536 | ||
2e59915d PB |
537 | printf("usage: qemu-" TARGET_NAME " [options] program [arguments...]\n" |
538 | "Linux CPU emulator (compiled for " TARGET_NAME " emulation)\n" | |
fc9c5412 JS |
539 | "\n" |
540 | "Options and associated environment variables:\n" | |
541 | "\n"); | |
542 | ||
63ec54d7 PM |
543 | /* Calculate column widths. We must always have at least enough space |
544 | * for the column header. | |
545 | */ | |
546 | maxarglen = strlen("Argument"); | |
547 | maxenvlen = strlen("Env-variable"); | |
fc9c5412 JS |
548 | |
549 | for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { | |
63ec54d7 PM |
550 | int arglen = strlen(arginfo->argv); |
551 | if (arginfo->has_arg) { | |
552 | arglen += strlen(arginfo->example) + 1; | |
553 | } | |
fc9c5412 JS |
554 | if (strlen(arginfo->env) > maxenvlen) { |
555 | maxenvlen = strlen(arginfo->env); | |
556 | } | |
63ec54d7 PM |
557 | if (arglen > maxarglen) { |
558 | maxarglen = arglen; | |
fc9c5412 JS |
559 | } |
560 | } | |
561 | ||
63ec54d7 PM |
562 | printf("%-*s %-*s Description\n", maxarglen+1, "Argument", |
563 | maxenvlen, "Env-variable"); | |
fc9c5412 JS |
564 | |
565 | for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { | |
566 | if (arginfo->has_arg) { | |
567 | printf("-%s %-*s %-*s %s\n", arginfo->argv, | |
63ec54d7 PM |
568 | (int)(maxarglen - strlen(arginfo->argv) - 1), |
569 | arginfo->example, maxenvlen, arginfo->env, arginfo->help); | |
fc9c5412 | 570 | } else { |
63ec54d7 | 571 | printf("-%-*s %-*s %s\n", maxarglen, arginfo->argv, |
fc9c5412 JS |
572 | maxenvlen, arginfo->env, |
573 | arginfo->help); | |
574 | } | |
575 | } | |
576 | ||
577 | printf("\n" | |
578 | "Defaults:\n" | |
579 | "QEMU_LD_PREFIX = %s\n" | |
989b697d | 580 | "QEMU_STACK_SIZE = %ld byte\n", |
fc9c5412 | 581 | interp_prefix, |
989b697d | 582 | guest_stack_size); |
fc9c5412 JS |
583 | |
584 | printf("\n" | |
585 | "You can use -E and -U options or the QEMU_SET_ENV and\n" | |
586 | "QEMU_UNSET_ENV environment variables to set and unset\n" | |
587 | "environment variables for the target process.\n" | |
588 | "It is possible to provide several variables by separating them\n" | |
589 | "by commas in getsubopt(3) style. Additionally it is possible to\n" | |
590 | "provide the -E and -U options multiple times.\n" | |
591 | "The following lines are equivalent:\n" | |
592 | " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n" | |
593 | " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n" | |
594 | " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n" | |
595 | "Note that if you provide several changes to a single variable\n" | |
f5048cb7 EB |
596 | "the last change will stay in effect.\n" |
597 | "\n" | |
598 | QEMU_HELP_BOTTOM "\n"); | |
fc9c5412 | 599 | |
d03f9c32 | 600 | exit(exitcode); |
fc9c5412 JS |
601 | } |
602 | ||
603 | static int parse_args(int argc, char **argv) | |
604 | { | |
605 | const char *r; | |
606 | int optind; | |
42644cee | 607 | const struct qemu_argument *arginfo; |
fc9c5412 JS |
608 | |
609 | for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { | |
610 | if (arginfo->env == NULL) { | |
611 | continue; | |
612 | } | |
613 | ||
614 | r = getenv(arginfo->env); | |
615 | if (r != NULL) { | |
616 | arginfo->handle_opt(r); | |
617 | } | |
618 | } | |
619 | ||
620 | optind = 1; | |
621 | for (;;) { | |
622 | if (optind >= argc) { | |
623 | break; | |
624 | } | |
625 | r = argv[optind]; | |
626 | if (r[0] != '-') { | |
627 | break; | |
628 | } | |
629 | optind++; | |
630 | r++; | |
631 | if (!strcmp(r, "-")) { | |
632 | break; | |
633 | } | |
ba02577c MI |
634 | /* Treat --foo the same as -foo. */ |
635 | if (r[0] == '-') { | |
636 | r++; | |
637 | } | |
fc9c5412 JS |
638 | |
639 | for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { | |
640 | if (!strcmp(r, arginfo->argv)) { | |
fc9c5412 | 641 | if (arginfo->has_arg) { |
1386d4c0 | 642 | if (optind >= argc) { |
138940bf MI |
643 | (void) fprintf(stderr, |
644 | "qemu: missing argument for option '%s'\n", r); | |
4d1275c2 | 645 | exit(EXIT_FAILURE); |
1386d4c0 PM |
646 | } |
647 | arginfo->handle_opt(argv[optind]); | |
fc9c5412 | 648 | optind++; |
1386d4c0 PM |
649 | } else { |
650 | arginfo->handle_opt(NULL); | |
fc9c5412 | 651 | } |
fc9c5412 JS |
652 | break; |
653 | } | |
654 | } | |
655 | ||
656 | /* no option matched the current argv */ | |
657 | if (arginfo->handle_opt == NULL) { | |
138940bf | 658 | (void) fprintf(stderr, "qemu: unknown option '%s'\n", r); |
4d1275c2 | 659 | exit(EXIT_FAILURE); |
fc9c5412 JS |
660 | } |
661 | } | |
662 | ||
663 | if (optind >= argc) { | |
138940bf | 664 | (void) fprintf(stderr, "qemu: no user program specified\n"); |
4d1275c2 | 665 | exit(EXIT_FAILURE); |
fc9c5412 JS |
666 | } |
667 | ||
fc9c5412 JS |
668 | exec_path = argv[optind]; |
669 | ||
670 | return optind; | |
671 | } | |
672 | ||
902b3d5c | 673 | int main(int argc, char **argv, char **envp) |
31e31b8a | 674 | { |
01ffc75b | 675 | struct target_pt_regs regs1, *regs = ®s1; |
31e31b8a | 676 | struct image_info info1, *info = &info1; |
edf8e2af | 677 | struct linux_binprm bprm; |
48e15fc2 | 678 | TaskState *ts; |
9349b4f9 | 679 | CPUArchState *env; |
db6b81d4 | 680 | CPUState *cpu; |
586314f2 | 681 | int optind; |
04a6dfeb | 682 | char **target_environ, **wrk; |
7d8cec95 AJ |
683 | char **target_argv; |
684 | int target_argc; | |
7d8cec95 | 685 | int i; |
fd4d81dd | 686 | int ret; |
03cfd8fa | 687 | int execfd; |
ff8a8bbc | 688 | int host_page_size; |
8f67b9c6 | 689 | unsigned long max_reserved_va; |
6e1c0d7b | 690 | bool preserve_argv0; |
b12b6a18 | 691 | |
f5852efa | 692 | error_init(argv[0]); |
fe4db84d | 693 | module_call_init(MODULE_INIT_TRACE); |
267f685b | 694 | qemu_init_cpu_list(); |
ce008c1f AF |
695 | module_call_init(MODULE_INIT_QOM); |
696 | ||
ec45bbe5 | 697 | envlist = envlist_create(); |
04a6dfeb | 698 | |
7f750efc AS |
699 | /* |
700 | * add current environment into the list | |
701 | * envlist_setenv adds to the front of the list; to preserve environ | |
702 | * order add from back to front | |
703 | */ | |
04a6dfeb | 704 | for (wrk = environ; *wrk != NULL; wrk++) { |
7f750efc AS |
705 | continue; |
706 | } | |
707 | while (wrk != environ) { | |
708 | wrk--; | |
04a6dfeb AJ |
709 | (void) envlist_setenv(envlist, *wrk); |
710 | } | |
711 | ||
703e0e89 RH |
712 | /* Read the stack limit from the kernel. If it's "unlimited", |
713 | then we can do little else besides use the default. */ | |
714 | { | |
715 | struct rlimit lim; | |
716 | if (getrlimit(RLIMIT_STACK, &lim) == 0 | |
81bbe906 | 717 | && lim.rlim_cur != RLIM_INFINITY |
0a3346b5 HD |
718 | && lim.rlim_cur == (target_long)lim.rlim_cur |
719 | && lim.rlim_cur > guest_stack_size) { | |
703e0e89 RH |
720 | guest_stack_size = lim.rlim_cur; |
721 | } | |
722 | } | |
723 | ||
b1f9be31 | 724 | cpu_model = NULL; |
b5ec5ce0 | 725 | |
6533dd6e | 726 | qemu_add_opts(&qemu_trace_opts); |
f308f64e | 727 | qemu_plugin_add_opts(); |
6533dd6e | 728 | |
fc9c5412 | 729 | optind = parse_args(argc, argv); |
586314f2 | 730 | |
b410253f RH |
731 | qemu_set_log_filename_flags(last_log_filename, |
732 | last_log_mask | (enable_strace * LOG_STRACE), | |
733 | &error_fatal); | |
4b25a506 | 734 | |
6533dd6e LV |
735 | if (!trace_init_backends()) { |
736 | exit(1); | |
737 | } | |
92eecfff | 738 | trace_init_file(); |
0572f558 | 739 | qemu_plugin_load_list(&plugins, &error_fatal); |
6533dd6e | 740 | |
31e31b8a | 741 | /* Zero out regs */ |
01ffc75b | 742 | memset(regs, 0, sizeof(struct target_pt_regs)); |
31e31b8a FB |
743 | |
744 | /* Zero out image_info */ | |
745 | memset(info, 0, sizeof(struct image_info)); | |
746 | ||
edf8e2af MW |
747 | memset(&bprm, 0, sizeof (bprm)); |
748 | ||
74cd30b8 FB |
749 | /* Scan interp_prefix dir for replacement files. */ |
750 | init_paths(interp_prefix); | |
751 | ||
4a24a758 PM |
752 | init_qemu_uname_release(); |
753 | ||
6e1c0d7b LV |
754 | /* |
755 | * Manage binfmt-misc open-binary flag | |
756 | */ | |
768fe76e YS |
757 | execfd = qemu_getauxval(AT_EXECFD); |
758 | if (execfd == 0) { | |
9d3019bc | 759 | execfd = open(exec_path, O_RDONLY); |
768fe76e | 760 | if (execfd < 0) { |
9d3019bc | 761 | printf("Error while loading %s: %s\n", exec_path, strerror(errno)); |
768fe76e YS |
762 | _exit(EXIT_FAILURE); |
763 | } | |
764 | } | |
765 | ||
258bec39 HD |
766 | /* Resolve executable file name to full path name */ |
767 | if (realpath(exec_path, real_exec_path)) { | |
768 | exec_path = real_exec_path; | |
769 | } | |
770 | ||
6e1c0d7b LV |
771 | /* |
772 | * get binfmt_misc flags | |
773 | */ | |
774 | preserve_argv0 = !!(qemu_getauxval(AT_FLAGS) & AT_FLAGS_PRESERVE_ARGV0); | |
775 | ||
776 | /* | |
777 | * Manage binfmt-misc preserve-arg[0] flag | |
778 | * argv[optind] full path to the binary | |
779 | * argv[optind + 1] original argv[0] | |
780 | */ | |
781 | if (optind + 1 < argc && preserve_argv0) { | |
782 | optind++; | |
783 | } | |
784 | ||
46027c07 | 785 | if (cpu_model == NULL) { |
768fe76e | 786 | cpu_model = cpu_get_model(get_elf_eflags(execfd)); |
aaed909a | 787 | } |
c1c8cfe5 | 788 | cpu_type = parse_cpu_option(cpu_model); |
2278b939 | 789 | |
13c13397 | 790 | /* init tcg before creating CPUs */ |
940e43aa | 791 | { |
3cfb0456 PM |
792 | AccelState *accel = current_accel(); |
793 | AccelClass *ac = ACCEL_GET_CLASS(accel); | |
2278b939 | 794 | |
b86f59c7 | 795 | accel_init_interfaces(ac); |
3cfb0456 PM |
796 | object_property_set_bool(OBJECT(accel), "one-insn-per-tb", |
797 | opt_one_insn_per_tb, &error_abort); | |
92242f34 | 798 | ac->init_machine(NULL); |
940e43aa | 799 | } |
ff8a8bbc RH |
800 | |
801 | /* | |
802 | * Finalize page size before creating CPUs. | |
803 | * This will do nothing if !TARGET_PAGE_BITS_VARY. | |
804 | * The most efficient setting is to match the host. | |
805 | */ | |
806 | host_page_size = qemu_real_host_page_size(); | |
807 | set_preferred_target_page_bits(ctz32(host_page_size)); | |
808 | finalize_target_page_bits(); | |
809 | ||
2278b939 | 810 | cpu = cpu_create(cpu_type); |
b77af26e | 811 | env = cpu_env(cpu); |
0ac46af3 | 812 | cpu_reset(cpu); |
db6b81d4 | 813 | thread_cpu = cpu; |
3b46e624 | 814 | |
8f67b9c6 RH |
815 | /* |
816 | * Reserving too much vm space via mmap can run into problems | |
817 | * with rlimits, oom due to page table creation, etc. We will | |
818 | * still try it, if directed by the command-line option, but | |
819 | * not by default. | |
820 | */ | |
821 | max_reserved_va = MAX_RESERVED_VA(cpu); | |
822 | if (reserved_va != 0) { | |
13c13397 RH |
823 | if ((reserved_va + 1) % host_page_size) { |
824 | char *s = size_to_str(host_page_size); | |
2f7828b5 RH |
825 | fprintf(stderr, "Reserved virtual address not aligned mod %s\n", s); |
826 | g_free(s); | |
827 | exit(EXIT_FAILURE); | |
828 | } | |
8f67b9c6 RH |
829 | if (max_reserved_va && reserved_va > max_reserved_va) { |
830 | fprintf(stderr, "Reserved virtual address too big\n"); | |
831 | exit(EXIT_FAILURE); | |
832 | } | |
833 | } else if (HOST_LONG_BITS == 64 && TARGET_VIRT_ADDR_SPACE_BITS <= 32) { | |
95059f9c RH |
834 | /* MAX_RESERVED_VA + 1 is a large power of 2, so is aligned. */ |
835 | reserved_va = max_reserved_va; | |
8f67b9c6 RH |
836 | } |
837 | ||
c8fb5cf9 RH |
838 | /* |
839 | * Temporarily disable | |
840 | * "comparison is always false due to limited range of data type" | |
841 | * due to comparison between (possible) uint64_t and uintptr_t. | |
842 | */ | |
843 | #pragma GCC diagnostic push | |
844 | #pragma GCC diagnostic ignored "-Wtype-limits" | |
845 | ||
846 | /* | |
847 | * Select an initial value for task_unmapped_base that is in range. | |
848 | */ | |
849 | if (reserved_va) { | |
850 | if (TASK_UNMAPPED_BASE < reserved_va) { | |
851 | task_unmapped_base = TASK_UNMAPPED_BASE; | |
852 | } else { | |
853 | /* The most common default formula is TASK_SIZE / 3. */ | |
854 | task_unmapped_base = TARGET_PAGE_ALIGN(reserved_va / 3); | |
855 | } | |
856 | } else if (TASK_UNMAPPED_BASE < UINTPTR_MAX) { | |
857 | task_unmapped_base = TASK_UNMAPPED_BASE; | |
858 | } else { | |
859 | /* 32-bit host: pick something medium size. */ | |
860 | task_unmapped_base = 0x10000000; | |
861 | } | |
862 | mmap_next_start = task_unmapped_base; | |
863 | ||
da2b71fa RH |
864 | /* Similarly for elf_et_dyn_base. */ |
865 | if (reserved_va) { | |
866 | if (ELF_ET_DYN_BASE < reserved_va) { | |
867 | elf_et_dyn_base = ELF_ET_DYN_BASE; | |
868 | } else { | |
869 | /* The most common default formula is TASK_SIZE / 3 * 2. */ | |
870 | elf_et_dyn_base = TARGET_PAGE_ALIGN(reserved_va / 3) * 2; | |
871 | } | |
872 | } else if (ELF_ET_DYN_BASE < UINTPTR_MAX) { | |
873 | elf_et_dyn_base = ELF_ET_DYN_BASE; | |
874 | } else { | |
875 | /* 32-bit host: pick something medium size. */ | |
876 | elf_et_dyn_base = 0x18000000; | |
877 | } | |
878 | ||
c8fb5cf9 RH |
879 | #pragma GCC diagnostic pop |
880 | ||
a573e9ba RH |
881 | { |
882 | Error *err = NULL; | |
883 | if (seed_optarg != NULL) { | |
a573e9ba RH |
884 | qemu_guest_random_seed_main(seed_optarg, &err); |
885 | } else { | |
886 | qcrypto_init(&err); | |
887 | } | |
888 | if (err) { | |
889 | error_reportf_err(err, "cannot initialize crypto: "); | |
890 | exit(1); | |
5ebdd774 | 891 | } |
c5e4a5a9 MR |
892 | } |
893 | ||
04a6dfeb AJ |
894 | target_environ = envlist_to_environ(envlist, NULL); |
895 | envlist_free(envlist); | |
b12b6a18 | 896 | |
379f6698 PB |
897 | /* |
898 | * Read in mmap_min_addr kernel parameter. This value is used | |
899 | * When loading the ELF image to determine whether guest_base | |
14f24e14 | 900 | * is needed. It is also used in mmap_find_vma. |
379f6698 | 901 | */ |
14f24e14 | 902 | { |
379f6698 PB |
903 | FILE *fp; |
904 | ||
905 | if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) { | |
906 | unsigned long tmp; | |
c9f80666 | 907 | if (fscanf(fp, "%lu", &tmp) == 1 && tmp != 0) { |
78b79b2c | 908 | mmap_min_addr = MAX(tmp, host_page_size); |
c9f80666 RH |
909 | qemu_log_mask(CPU_LOG_PAGE, "host mmap_min_addr=0x%lx\n", |
910 | mmap_min_addr); | |
379f6698 PB |
911 | } |
912 | fclose(fp); | |
913 | } | |
914 | } | |
379f6698 | 915 | |
c9f80666 RH |
916 | /* |
917 | * We prefer to not make NULL pointers accessible to QEMU. | |
918 | * If we're in a chroot with no /proc, fall back to 1 page. | |
919 | */ | |
920 | if (mmap_min_addr == 0) { | |
ff8a8bbc | 921 | mmap_min_addr = host_page_size; |
c9f80666 RH |
922 | qemu_log_mask(CPU_LOG_PAGE, |
923 | "host mmap_min_addr=0x%lx (fallback)\n", | |
924 | mmap_min_addr); | |
925 | } | |
926 | ||
7d8cec95 AJ |
927 | /* |
928 | * Prepare copy of argv vector for target. | |
929 | */ | |
930 | target_argc = argc - optind; | |
931 | target_argv = calloc(target_argc + 1, sizeof (char *)); | |
932 | if (target_argv == NULL) { | |
7d37435b PB |
933 | (void) fprintf(stderr, "Unable to allocate memory for target_argv\n"); |
934 | exit(EXIT_FAILURE); | |
7d8cec95 AJ |
935 | } |
936 | ||
937 | /* | |
938 | * If argv0 is specified (using '-0' switch) we replace | |
939 | * argv[0] pointer with the given one. | |
940 | */ | |
941 | i = 0; | |
942 | if (argv0 != NULL) { | |
943 | target_argv[i++] = strdup(argv0); | |
944 | } | |
945 | for (; i < target_argc; i++) { | |
946 | target_argv[i] = strdup(argv[optind + i]); | |
947 | } | |
948 | target_argv[target_argc] = NULL; | |
949 | ||
c78d65e8 | 950 | ts = g_new0(TaskState, 1); |
edf8e2af MW |
951 | init_task_state(ts); |
952 | /* build Task State */ | |
953 | ts->info = info; | |
954 | ts->bprm = &bprm; | |
0429a971 | 955 | cpu->opaque = ts; |
edf8e2af MW |
956 | task_settid(ts); |
957 | ||
c093364f OA |
958 | fd_trans_init(); |
959 | ||
9d3019bc | 960 | ret = loader_exec(execfd, exec_path, target_argv, target_environ, regs, |
fd4d81dd AP |
961 | info, &bprm); |
962 | if (ret != 0) { | |
9d3019bc | 963 | printf("Error while loading %s: %s\n", exec_path, strerror(-ret)); |
4d1275c2 | 964 | _exit(EXIT_FAILURE); |
b12b6a18 TS |
965 | } |
966 | ||
967 | for (wrk = target_environ; *wrk; wrk++) { | |
ec45bbe5 | 968 | g_free(*wrk); |
31e31b8a | 969 | } |
3b46e624 | 970 | |
ec45bbe5 | 971 | g_free(target_environ); |
b12b6a18 | 972 | |
13829020 | 973 | if (qemu_loglevel_mask(CPU_LOG_PAGE)) { |
93756fdc RH |
974 | FILE *f = qemu_log_trylock(); |
975 | if (f) { | |
976 | fprintf(f, "guest_base %p\n", (void *)guest_base); | |
977 | fprintf(f, "page layout changed following binary load\n"); | |
978 | page_dump(f); | |
979 | ||
93756fdc RH |
980 | fprintf(f, "end_code 0x" TARGET_ABI_FMT_lx "\n", |
981 | info->end_code); | |
982 | fprintf(f, "start_code 0x" TARGET_ABI_FMT_lx "\n", | |
983 | info->start_code); | |
984 | fprintf(f, "start_data 0x" TARGET_ABI_FMT_lx "\n", | |
985 | info->start_data); | |
986 | fprintf(f, "end_data 0x" TARGET_ABI_FMT_lx "\n", | |
987 | info->end_data); | |
988 | fprintf(f, "start_stack 0x" TARGET_ABI_FMT_lx "\n", | |
989 | info->start_stack); | |
990 | fprintf(f, "brk 0x" TARGET_ABI_FMT_lx "\n", | |
991 | info->brk); | |
992 | fprintf(f, "entry 0x" TARGET_ABI_FMT_lx "\n", | |
993 | info->entry); | |
994 | fprintf(f, "argv_start 0x" TARGET_ABI_FMT_lx "\n", | |
60f1c801 | 995 | info->argv); |
93756fdc | 996 | fprintf(f, "env_start 0x" TARGET_ABI_FMT_lx "\n", |
60f1c801 | 997 | info->envp); |
93756fdc RH |
998 | fprintf(f, "auxv_start 0x" TARGET_ABI_FMT_lx "\n", |
999 | info->saved_auxv); | |
1000 | qemu_log_unlock(f); | |
1001 | } | |
2e77eac6 | 1002 | } |
31e31b8a | 1003 | |
53a5960a | 1004 | target_set_brk(info->brk); |
31e31b8a | 1005 | syscall_init(); |
66fb9763 | 1006 | signal_init(); |
31e31b8a | 1007 | |
9002ec79 RH |
1008 | /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay |
1009 | generating the prologue until now so that the prologue can take | |
1010 | the real value of GUEST_BASE into account. */ | |
935f75ae | 1011 | tcg_prologue_init(); |
9002ec79 | 1012 | |
cd71c089 LV |
1013 | target_cpu_copy_regs(env, regs); |
1014 | ||
fcedd920 AB |
1015 | if (gdbstub) { |
1016 | if (gdbserver_start(gdbstub) < 0) { | |
1017 | fprintf(stderr, "qemu: could not open gdbserver on %s\n", | |
1018 | gdbstub); | |
4d1275c2 | 1019 | exit(EXIT_FAILURE); |
ff7a981a | 1020 | } |
b6617e93 | 1021 | gdb_handlesig(cpu, 0, NULL); |
1fddef4b | 1022 | } |
e4a4aaa5 RH |
1023 | |
1024 | #ifdef CONFIG_SEMIHOSTING | |
1025 | qemu_semihosting_guestfd_init(); | |
1026 | #endif | |
1027 | ||
1b6b029e FB |
1028 | cpu_loop(env); |
1029 | /* never exits */ | |
31e31b8a FB |
1030 | return 0; |
1031 | } |