diff options
Diffstat (limited to 'qemu/linux-user/uname.c')
| -rw-r--r-- | qemu/linux-user/uname.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/qemu/linux-user/uname.c b/qemu/linux-user/uname.c deleted file mode 100644 index 313b79dba..000000000 --- a/qemu/linux-user/uname.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * cpu to uname machine name map - * - * Copyright (c) 2009 Loïc Minier - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" - -#include "qemu.h" -//#include "qemu-common.h" -#include "uname.h" - -/* return highest utsname machine name for emulated instruction set - * - * NB: the default emulated CPU ("any") might not match any existing CPU, e.g. - * on ARM it has all features turned on, so there is no perfect arch string to - * return here */ -const char *cpu_to_uname_machine(void *cpu_env) -{ -#if defined(TARGET_ARM) && !defined(TARGET_AARCH64) - - /* utsname machine name on linux arm is CPU arch name + endianness, e.g. - * armv7l; to get a list of CPU arch names from the linux source, use: - * grep arch_name: -A1 linux/arch/arm/mm/proc-*.S - * see arch/arm/kernel/setup.c: setup_processor() - */ - - /* in theory, endianness is configurable on some ARM CPUs, but this isn't - * used in user mode emulation */ -#ifdef TARGET_WORDS_BIGENDIAN -#define utsname_suffix "b" -#else -#define utsname_suffix "l" -#endif - if (arm_feature(cpu_env, ARM_FEATURE_V7)) - return "armv7" utsname_suffix; - if (arm_feature(cpu_env, ARM_FEATURE_V6)) - return "armv6" utsname_suffix; - /* earliest emulated CPU is ARMv5TE; qemu can emulate the 1026, but not its - * Jazelle support */ - return "armv5te" utsname_suffix; -#elif defined(TARGET_I386) && !defined(TARGET_X86_64) - /* see arch/x86/kernel/cpu/bugs.c: check_bugs(), 386, 486, 586, 686 */ - CPUState *cpu = ENV_GET_CPU((CPUX86State *)cpu_env); - int family = object_property_get_int(OBJECT(cpu), "family", NULL); - if (family == 4) { - return "i486"; - } - if (family == 5) { - return "i586"; - } - return "i686"; -#else - /* default is #define-d in each arch/ subdir */ - return UNAME_MACHINE; -#endif -} - - -#define COPY_UTSNAME_FIELD(dest, src) \ - do { \ - /* __NEW_UTS_LEN doesn't include terminating null */ \ - (void) strncpy((dest), (src), __NEW_UTS_LEN); \ - (dest)[__NEW_UTS_LEN] = '\0'; \ - } while (0) - -int sys_uname(struct new_utsname *buf) -{ - struct utsname uts_buf; - - if (uname(&uts_buf) < 0) - return (-1); - - /* - * Just in case these have some differences, we - * translate utsname to new_utsname (which is the - * struct linux kernel uses). - */ - - memset(buf, 0, sizeof(*buf)); - COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname); - COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename); - COPY_UTSNAME_FIELD(buf->release, uts_buf.release); - COPY_UTSNAME_FIELD(buf->version, uts_buf.version); - COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine); -#ifdef _GNU_SOURCE - COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname); -#endif - return (0); - -#undef COPY_UTSNAME_FIELD -} - -static int relstr_to_int(const char *s) -{ - /* Convert a uname release string like "2.6.18" to an integer - * of the form 0x020612. (Beware that 0x020612 is *not* 2.6.12.) - */ - int i, n, tmp; - - tmp = 0; - for (i = 0; i < 3; i++) { - n = 0; - while (*s >= '0' && *s <= '9') { - n *= 10; - n += *s - '0'; - s++; - } - tmp = (tmp << 8) + n; - if (*s == '.') { - s++; - } - } - return tmp; -} - -int get_osversion(void) -{ - static int osversion; - struct new_utsname buf; - const char *s; - - if (osversion) - return osversion; - if (qemu_uname_release && *qemu_uname_release) { - s = qemu_uname_release; - } else { - if (sys_uname(&buf)) - return 0; - s = buf.release; - } - osversion = relstr_to_int(s); - return osversion; -} - -void init_qemu_uname_release(void) -{ - /* Initialize qemu_uname_release for later use. - * If the host kernel is too old and the user hasn't asked for - * a specific fake version number, we might want to fake a minimum - * target kernel version. - */ - struct new_utsname buf; - - if (qemu_uname_release && *qemu_uname_release) { - return; - } - - if (sys_uname(&buf)) { - return; - } - - if (relstr_to_int(buf.release) < relstr_to_int(UNAME_MINIMUM_RELEASE)) { - qemu_uname_release = UNAME_MINIMUM_RELEASE; - } -} |