| #include <linux/unistd.h> |
| #ifndef PTRACE_GET_THREAD_AREA |
| #define PTRACE_GET_THREAD_AREA 25 |
| #ifndef PTRACE_SET_THREAD_AREA |
| #define PTRACE_SET_THREAD_AREA 26 |
| /* Checks whether host supports TLS, and sets *tls_min according to the value |
| * i386 host have it == 6; x86_64 host have it == 12, for i386 emulation. */ |
| void check_host_supports_tls(int *supports_tls, int *tls_min) |
| /* Values for x86 and x86_64.*/ |
| int val[] = {GDT_ENTRY_TLS_MIN_I386, GDT_ENTRY_TLS_MIN_X86_64}; |
| for (i = 0; i < ARRAY_SIZE(val); i++) { |
| info.entry_number = val[i]; |
| if (syscall(__NR_get_thread_area, &info) == 0) { |
| else if (errno == ENOSYS) |
| int os_set_thread_area(user_desc_t *info, int pid) |
| ret = ptrace(PTRACE_SET_THREAD_AREA, pid, info->entry_number, |
| int os_get_thread_area(user_desc_t *info, int pid) |
| ret = ptrace(PTRACE_GET_THREAD_AREA, pid, info->entry_number, |