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mmap emulation

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@158 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard
2003-05-13 00:25:15 +00:00
parent 74c95119f2
commit 54936004fd
9 changed files with 646 additions and 101 deletions
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29
linux-user/main.c
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@@ -231,13 +231,16 @@ void usage(void)
"usage: qemu [-h] [-d] [-L path] [-s size] program [arguments...]\n"
"Linux x86 emulator\n"
"\n"
"-h print this help\n"
"-d activate log (logfile=%s)\n"
"-L path set the x86 elf interpreter prefix (default=%s)\n"
"-s size set the x86 stack size in bytes (default=%ld)\n",
DEBUG_LOGFILE,
"-h print this help\n"
"-L path set the x86 elf interpreter prefix (default=%s)\n"
"-s size set the x86 stack size in bytes (default=%ld)\n"
"\n"
"debug options:\n"
"-d activate log (logfile=%s)\n"
"-p pagesize set the host page size to 'pagesize'\n",
interp_prefix,
x86_stack_size);
x86_stack_size,
DEBUG_LOGFILE);
_exit(1);
}
@@ -284,6 +287,13 @@ int main(int argc, char **argv)
x86_stack_size *= 1024;
} else if (!strcmp(r, "L")) {
interp_prefix = argv[optind++];
} else if (!strcmp(r, "p")) {
host_page_size = atoi(argv[optind++]);
if (host_page_size == 0 ||
(host_page_size & (host_page_size - 1)) != 0) {
fprintf(stderr, "page size must be a power of two\n");
exit(1);
}
} else {
usage();
}
@@ -311,12 +321,18 @@ int main(int argc, char **argv)
/* Scan interp_prefix dir for replacement files. */
init_paths(interp_prefix);
/* NOTE: we need to init the CPU at this stage to get the
host_page_size */
env = cpu_x86_init();
if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
printf("Error loading %s\n", filename);
_exit(1);
}
if (loglevel) {
page_dump(logfile);
fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
@@ -331,7 +347,6 @@ int main(int argc, char **argv)
syscall_init();
signal_init();
env = cpu_x86_init();
global_env = env;
/* build Task State */