setarch: reindent code
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
parent
846c7d30b3
commit
77eb13b965
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@ -41,7 +41,7 @@
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/* Options without equivalent short options */
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enum {
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OPT_4GB = CHAR_MAX + 1,
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OPT_4GB = CHAR_MAX + 1,
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OPT_UNAME26
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};
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@ -52,7 +52,6 @@ enum {
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printf(_("Switching on %s.\n"), #_flag); \
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} while(0)
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#ifndef UNAME26
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# define UNAME26 0x0020000
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#endif
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@ -87,301 +86,291 @@ enum {
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# define ADDR_LIMIT_3GB 0x8000000
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#endif
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static void __attribute__((__noreturn__))
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show_help(void)
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static void __attribute__((__noreturn__)) show_help(void)
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{
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fputs(USAGE_HEADER, stdout);
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printf(_(" %s%s [options] [program [program arguments]]\n"),
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program_invocation_short_name,
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!strcmp(program_invocation_short_name, "setarch") ? " <arch>" : "");
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fputs(USAGE_HEADER, stdout);
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printf(_(" %s%s [options] [program [program arguments]]\n"),
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program_invocation_short_name,
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!strcmp(program_invocation_short_name, "setarch") ? " <arch>" : "");
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fputs(USAGE_OPTIONS, stdout);
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fputs(_(" -v, --verbose says what options are being switched on\n"), stdout);
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fputs(_(" -R, --addr-no-randomize disables randomization of the virtual address space\n"), stdout);
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fputs(_(" -F, --fdpic-funcptrs makes function pointers point to descriptors\n"), stdout);
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fputs(_(" -Z, --mmap-page-zero turns on MMAP_PAGE_ZERO\n"), stdout);
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fputs(_(" -L, --addr-compat-layout changes the way virtual memory is allocated\n"), stdout);
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fputs(_(" -X, --read-implies-exec turns on READ_IMPLIES_EXEC\n"), stdout);
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fputs(_(" -B, --32bit turns on ADDR_LIMIT_32BIT\n"), stdout);
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fputs(_(" -I, --short-inode turns on SHORT_INODE\n"), stdout);
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fputs(_(" -S, --whole-seconds turns on WHOLE_SECONDS\n"), stdout);
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fputs(_(" -T, --sticky-timeouts turns on STICKY_TIMEOUTS\n"), stdout);
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fputs(_(" -3, --3gb limits the used address space to a maximum of 3 GB\n"), stdout);
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fputs(_(" --4gb ignored (for backward compatibility only)\n"), stdout);
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fputs(_(" --uname-2.6 turns on UNAME26\n"), stdout);
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fputs(_(" --list list settable architectures, and exit\n"), stdout);
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fputs(USAGE_SEPARATOR, stdout);
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fputs(USAGE_HELP, stdout);
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fputs(USAGE_VERSION, stdout);
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printf(USAGE_MAN_TAIL("setarch(8)"));
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exit(EXIT_SUCCESS);
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}
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fputs(USAGE_OPTIONS, stdout);
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fputs(_(" -v, --verbose says what options are being switched on\n"), stdout);
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fputs(_(" -R, --addr-no-randomize disables randomization of the virtual address space\n"), stdout);
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fputs(_(" -F, --fdpic-funcptrs makes function pointers point to descriptors\n"), stdout);
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fputs(_(" -Z, --mmap-page-zero turns on MMAP_PAGE_ZERO\n"), stdout);
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fputs(_(" -L, --addr-compat-layout changes the way virtual memory is allocated\n"), stdout);
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fputs(_(" -X, --read-implies-exec turns on READ_IMPLIES_EXEC\n"), stdout);
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fputs(_(" -B, --32bit turns on ADDR_LIMIT_32BIT\n"), stdout);
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fputs(_(" -I, --short-inode turns on SHORT_INODE\n"), stdout);
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fputs(_(" -S, --whole-seconds turns on WHOLE_SECONDS\n"), stdout);
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fputs(_(" -T, --sticky-timeouts turns on STICKY_TIMEOUTS\n"), stdout);
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fputs(_(" -3, --3gb limits the used address space to a maximum of 3 GB\n"), stdout);
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fputs(_(" --4gb ignored (for backward compatibility only)\n"), stdout);
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fputs(_(" --uname-2.6 turns on UNAME26\n"), stdout);
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fputs(_(" --list list settable architectures, and exit\n"), stdout);
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fputs(USAGE_SEPARATOR, stdout);
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fputs(USAGE_HELP, stdout);
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fputs(USAGE_VERSION, stdout);
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printf(USAGE_MAN_TAIL("setarch(8)"));
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exit(EXIT_SUCCESS);
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static void __attribute__((__noreturn__)) show_usage(const char *s)
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{
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if (s)
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errx(EXIT_FAILURE,
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_("%s\nTry `%s --help' for more information."), s,
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program_invocation_short_name);
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else
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errx(EXIT_FAILURE, _("Try `%s --help' for more information."),
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program_invocation_short_name);
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}
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static void __attribute__((__noreturn__))
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show_usage(const char *s)
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show_version(void)
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{
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if (s)
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errx(EXIT_FAILURE, _("%s\nTry `%s --help' for more information."), s, program_invocation_short_name);
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else
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errx(EXIT_FAILURE, _("Try `%s --help' for more information."), program_invocation_short_name);
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printf(UTIL_LINUX_VERSION);
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exit(EXIT_SUCCESS);
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}
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static void __attribute__((__noreturn__))
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show_version(void)
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static int set_arch(const char *pers, unsigned long options, int list)
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{
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printf(UTIL_LINUX_VERSION);
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exit(EXIT_SUCCESS);
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}
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struct utsname un;
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int i;
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unsigned long pers_value;
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static int
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set_arch(const char *pers, unsigned long options, int list)
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{
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struct utsname un;
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int i;
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unsigned long pers_value;
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struct {
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int perval;
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const char *target_arch, *result_arch;
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} transitions[] = {
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{UNAME26, "uname26", NULL},
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{PER_LINUX32, "linux32", NULL},
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{PER_LINUX, "linux64", NULL},
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struct {
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int perval;
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const char *target_arch, *result_arch;
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} transitions[] = {
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{UNAME26, "uname26", NULL},
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{PER_LINUX32, "linux32", NULL},
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{PER_LINUX, "linux64", NULL},
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#if defined(__powerpc__) || defined(__powerpc64__)
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#ifdef __BIG_ENDIAN__
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{PER_LINUX32, "ppc32", "ppc"},
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{PER_LINUX32, "ppc", "ppc"},
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{PER_LINUX, "ppc64", "ppc64"},
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{PER_LINUX, "ppc64pseries", "ppc64"},
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{PER_LINUX, "ppc64iseries", "ppc64"},
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#else
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{PER_LINUX32, "ppc32le", "ppcle"},
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{PER_LINUX32, "ppcle", "ppcle"},
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{PER_LINUX, "ppc64le", "ppc64le"},
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#endif
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# ifdef __BIG_ENDIAN__
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{PER_LINUX32, "ppc32", "ppc"},
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{PER_LINUX32, "ppc", "ppc"},
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{PER_LINUX, "ppc64", "ppc64"},
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{PER_LINUX, "ppc64pseries", "ppc64"},
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{PER_LINUX, "ppc64iseries", "ppc64"},
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# else
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PER_LINUX32, "ppc32le", "ppcle"},
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PER_LINUX32, "ppcle", "ppcle"},
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PER_LINUX, "ppc64le", "ppc64le"},
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# endif
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#endif
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#if defined(__x86_64__) || defined(__i386__) || defined(__ia64__)
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{PER_LINUX32, "i386", "i386"},
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{PER_LINUX32, "i486", "i386"},
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{PER_LINUX32, "i586", "i386"},
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{PER_LINUX32, "i686", "i386"},
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{PER_LINUX32, "athlon", "i386"},
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{PER_LINUX32, "i386", "i386"},
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{PER_LINUX32, "i486", "i386"},
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{PER_LINUX32, "i586", "i386"},
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{PER_LINUX32, "i686", "i386"},
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{PER_LINUX32, "athlon", "i386"},
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#endif
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#if defined(__x86_64__) || defined(__i386__)
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{PER_LINUX, "x86_64", "x86_64"},
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{PER_LINUX, "x86_64", "x86_64"},
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#endif
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#if defined(__ia64__) || defined(__i386__)
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{PER_LINUX, "ia64", "ia64"},
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{PER_LINUX, "ia64", "ia64"},
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#endif
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#if defined(__hppa__)
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{PER_LINUX32, "parisc32", "parisc"},
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{PER_LINUX32, "parisc", "parisc"},
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{PER_LINUX, "parisc64", "parisc64"},
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{PER_LINUX32, "parisc32", "parisc"},
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{PER_LINUX32, "parisc", "parisc"},
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{PER_LINUX, "parisc64", "parisc64"},
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#endif
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#if defined(__s390x__) || defined(__s390__)
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{PER_LINUX32, "s390", "s390"},
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{PER_LINUX, "s390x", "s390x"},
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{PER_LINUX32, "s390", "s390"},
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{PER_LINUX, "s390x", "s390x"},
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#endif
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#if defined(__sparc64__) || defined(__sparc__)
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{PER_LINUX32, "sparc", "sparc"},
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{PER_LINUX32, "sparc32bash", "sparc"},
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{PER_LINUX32, "sparc32", "sparc"},
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{PER_LINUX, "sparc64", "sparc64"},
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{PER_LINUX32, "sparc", "sparc"},
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{PER_LINUX32, "sparc32bash", "sparc"},
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{PER_LINUX32, "sparc32", "sparc"},
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{PER_LINUX, "sparc64", "sparc64"},
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#endif
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#if defined(__mips64__) || defined(__mips__)
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{PER_LINUX32, "mips32", "mips"},
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{PER_LINUX32, "mips", "mips"},
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{PER_LINUX, "mips64", "mips64"},
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{PER_LINUX32, "mips32", "mips"},
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{PER_LINUX32, "mips", "mips"},
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{PER_LINUX, "mips64", "mips64"},
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#endif
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#if defined(__alpha__)
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{PER_LINUX, "alpha", "alpha"},
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{PER_LINUX, "alphaev5", "alpha"},
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{PER_LINUX, "alphaev56", "alpha"},
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{PER_LINUX, "alphaev6", "alpha"},
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{PER_LINUX, "alphaev67", "alpha"},
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{PER_LINUX, "alpha", "alpha"},
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{PER_LINUX, "alphaev5", "alpha"},
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{PER_LINUX, "alphaev56", "alpha"},
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{PER_LINUX, "alphaev6", "alpha"},
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{PER_LINUX, "alphaev67", "alpha"},
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#endif
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{-1, NULL, NULL}, /* place holder, eventually filled up at runtime */
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{-1, NULL, NULL}
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};
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/* place holder, will be filled up at runtime */
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{-1, NULL, NULL},
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{-1, NULL, NULL}
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};
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/* Add the trivial transition {PER_LINUX, machine, machine} if no such
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target_arch is hardcoded yet. */
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uname(&un);
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for (i = 0; transitions[i].perval >= 0; i++)
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if(!strcmp(un.machine, transitions[i].target_arch))
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break;
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if (transitions[i].perval < 0) {
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unsigned long wrdsz = CHAR_BIT * sizeof(void*);
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if (wrdsz == 32 || wrdsz == 64) {
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transitions[i].perval = wrdsz == 32 ? PER_LINUX32 : PER_LINUX;
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transitions[i].target_arch = un.machine;
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transitions[i].result_arch = un.machine;
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/* Add the trivial transition {PER_LINUX, machine, machine} if no
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* such target_arch is hardcoded yet. */
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uname(&un);
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for (i = 0; transitions[i].perval >= 0; i++)
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if (!strcmp(un.machine, transitions[i].target_arch))
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break;
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if (transitions[i].perval < 0) {
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unsigned long wrdsz = CHAR_BIT * sizeof(void *);
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if (wrdsz == 32 || wrdsz == 64) {
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/* fill up the place holder */
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transitions[i].perval = wrdsz == 32 ? PER_LINUX32 : PER_LINUX;
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transitions[i].target_arch = un.machine;
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transitions[i].result_arch = un.machine;
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}
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}
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}
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if (list) {
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for(i = 0; transitions[i].target_arch != NULL; i++)
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printf("%s\n", transitions[i].target_arch);
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return 0;
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}
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for(i = 0; transitions[i].perval >= 0; i++)
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if(!strcmp(pers, transitions[i].target_arch))
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break;
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if(transitions[i].perval < 0)
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errx(EXIT_FAILURE, _("%s: Unrecognized architecture"), pers);
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pers_value = transitions[i].perval | options;
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if (set_pers(pers_value) == -EINVAL)
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return 1;
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uname(&un);
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if(transitions[i].result_arch &&
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strcmp(un.machine, transitions[i].result_arch))
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{
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if(strcmp(transitions[i].result_arch, "i386")
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|| (strcmp(un.machine, "i486")
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&& strcmp(un.machine, "i586")
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&& strcmp(un.machine, "i686")
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&& strcmp(un.machine, "athlon")))
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errx(EXIT_FAILURE, _("%s: Unrecognized architecture"), pers);
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}
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return 0;
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if (list) {
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for (i = 0; transitions[i].target_arch != NULL; i++)
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printf("%s\n", transitions[i].target_arch);
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return 0;
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}
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for (i = 0; transitions[i].perval >= 0; i++)
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if (!strcmp(pers, transitions[i].target_arch))
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break;
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if (transitions[i].perval < 0)
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errx(EXIT_FAILURE, _("%s: Unrecognized architecture"), pers);
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pers_value = transitions[i].perval | options;
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if (set_pers(pers_value) == -EINVAL)
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return 1;
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uname(&un);
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if (transitions[i].result_arch && strcmp(un.machine, transitions[i].result_arch)) {
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if (strcmp(transitions[i].result_arch, "i386")
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|| (strcmp(un.machine, "i486")
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&& strcmp(un.machine, "i586")
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&& strcmp(un.machine, "i686")
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&& strcmp(un.machine, "athlon")))
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errx(EXIT_FAILURE, _("%s: Unrecognized architecture"), pers);
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}
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return 0;
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}
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int main(int argc, char *argv[])
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{
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const char *p;
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unsigned long options = 0;
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int verbose = 0;
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int c;
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const char *p;
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unsigned long options = 0;
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int verbose = 0;
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int c;
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/* Options --3gb and --4gb are for compatibitity with an old Debian setarch
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implementation. */
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static const struct option longopts[] =
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{
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{ "help", 0, 0, 'h' },
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{ "version", 0, 0, 'V' },
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{ "verbose", 0, 0, 'v' },
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{ "addr-no-randomize", 0, 0, 'R' },
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{ "fdpic-funcptrs", 0, 0, 'F' },
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{ "mmap-page-zero", 0, 0, 'Z' },
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{ "addr-compat-layout", 0, 0, 'L' },
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{ "read-implies-exec", 0, 0, 'X' },
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{ "32bit", 0, 0, 'B' },
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{ "short-inode", 0, 0, 'I' },
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{ "whole-seconds", 0, 0, 'S' },
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{ "sticky-timeouts", 0, 0, 'T' },
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{ "3gb", 0, 0, '3' },
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{ "4gb", 0, 0, OPT_4GB },
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{ "uname-2.6", 0, 0, OPT_UNAME26 },
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{ NULL, 0, 0, 0 }
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};
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/* Options --3gb and --4gb are for compatibitity with an old
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* Debian setarch implementation. */
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static const struct option longopts[] = {
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'V'},
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{"verbose", no_argument, NULL, 'v'},
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{"addr-no-randomize", no_argument, NULL, 'R'},
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{"fdpic-funcptrs", no_argument, NULL, 'F'},
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{"mmap-page-zero", no_argument, NULL, 'Z'},
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{"addr-compat-layout", no_argument, NULL, 'L'},
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{"read-implies-exec", no_argument, NULL, 'X'},
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{"32bit", no_argument, NULL, 'B'},
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{"short-inode", no_argument, NULL, 'I'},
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{"whole-seconds", no_argument, NULL, 'S'},
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{"sticky-timeouts", no_argument, NULL, 'T'},
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{"3gb", no_argument, NULL, '3'},
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{"4gb", no_argument, NULL, OPT_4GB},
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{"uname-2.6", no_argument, NULL, OPT_UNAME26},
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{NULL, 0, NULL, 0}
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};
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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atexit(close_stdout);
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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atexit(close_stdout);
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if (argc < 1)
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show_usage(_("Not enough arguments"));
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if (argc < 1)
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show_usage(_("Not enough arguments"));
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p = program_invocation_short_name;
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if (!strcmp(p, "setarch")) {
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argc--;
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if (argc < 1)
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show_usage(_("Not enough arguments"));
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p = argv[1];
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argv[1] = argv[0]; /* for getopt_long() to get the program name */
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argv++;
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if (!strcmp(p, "-h") || !strcmp(p, "--help"))
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show_help();
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else if (!strcmp(p, "-V") || !strcmp(p, "--version"))
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show_version();
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else if (!strcmp(p, "--list")) {
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set_arch(argv[0], 0L, 1);
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return EXIT_SUCCESS;
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}
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}
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#if defined(__sparc64__) || defined(__sparc__)
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if (!strcmp(p, "sparc32bash")) {
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if (set_arch(p, 0L, 0))
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err(EXIT_FAILURE, _("Failed to set personality to %s"), p);
|
||||
execl("/bin/bash", NULL);
|
||||
err(EXIT_FAILURE, _("failed to execute %s"), "/bin/bash");
|
||||
}
|
||||
#endif
|
||||
p = program_invocation_short_name;
|
||||
if (!strcmp(p, "setarch")) {
|
||||
argc--;
|
||||
if (argc < 1)
|
||||
show_usage(_("Not enough arguments"));
|
||||
p = argv[1];
|
||||
argv[1] = argv[0]; /* for getopt_long() to get the program name */
|
||||
argv++;
|
||||
if (!strcmp(p, "-h") || !strcmp(p, "--help"))
|
||||
show_help();
|
||||
else if (!strcmp(p, "-V") || !strcmp(p, "--version"))
|
||||
show_version();
|
||||
else if (!strcmp(p, "--list")) {
|
||||
set_arch(argv[0], 0L, 1);
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
}
|
||||
#if defined(__sparc64__) || defined(__sparc__)
|
||||
if (!strcmp(p, "sparc32bash")) {
|
||||
if (set_arch(p, 0L, 0))
|
||||
err(EXIT_FAILURE, _("Failed to set personality to %s"), p);
|
||||
execl("/bin/bash", NULL);
|
||||
err(EXIT_FAILURE, _("failed to execute %s"), "/bin/bash");
|
||||
}
|
||||
#endif
|
||||
|
||||
while ((c = getopt_long(argc, argv, "+hVv3BFILRSTXZ", longopts, NULL)) != -1) {
|
||||
switch (c) {
|
||||
case 'h':
|
||||
show_help();
|
||||
break;
|
||||
case 'V':
|
||||
show_version();
|
||||
break;
|
||||
case 'v':
|
||||
verbose = 1;
|
||||
break;
|
||||
case 'R':
|
||||
turn_on(ADDR_NO_RANDOMIZE, options);
|
||||
break;
|
||||
case 'F':
|
||||
turn_on(FDPIC_FUNCPTRS, options);
|
||||
break;
|
||||
case 'Z':
|
||||
turn_on(MMAP_PAGE_ZERO, options);
|
||||
break;
|
||||
case 'L':
|
||||
turn_on(ADDR_COMPAT_LAYOUT, options);
|
||||
break;
|
||||
case 'X':
|
||||
turn_on(READ_IMPLIES_EXEC, options);
|
||||
break;
|
||||
case 'B':
|
||||
turn_on(ADDR_LIMIT_32BIT, options);
|
||||
break;
|
||||
case 'I':
|
||||
turn_on(SHORT_INODE, options);
|
||||
break;
|
||||
case 'S':
|
||||
turn_on(WHOLE_SECONDS, options);
|
||||
break;
|
||||
case 'T':
|
||||
turn_on(STICKY_TIMEOUTS, options);
|
||||
break;
|
||||
case '3':
|
||||
turn_on(ADDR_LIMIT_3GB, options);
|
||||
break;
|
||||
case OPT_4GB: /* just ignore this one */
|
||||
break;
|
||||
case OPT_UNAME26:
|
||||
turn_on(UNAME26, options);
|
||||
break;
|
||||
default:
|
||||
show_usage(NULL);
|
||||
}
|
||||
}
|
||||
while ((c = getopt_long(argc, argv, "+hVv3BFILRSTXZ", longopts, NULL)) != -1) {
|
||||
switch (c) {
|
||||
case 'h':
|
||||
show_help();
|
||||
break;
|
||||
case 'V':
|
||||
show_version();
|
||||
break;
|
||||
case 'v':
|
||||
verbose = 1;
|
||||
break;
|
||||
case 'R':
|
||||
turn_on(ADDR_NO_RANDOMIZE, options);
|
||||
break;
|
||||
case 'F':
|
||||
turn_on(FDPIC_FUNCPTRS, options);
|
||||
break;
|
||||
case 'Z':
|
||||
turn_on(MMAP_PAGE_ZERO, options);
|
||||
break;
|
||||
case 'L':
|
||||
turn_on(ADDR_COMPAT_LAYOUT, options);
|
||||
break;
|
||||
case 'X':
|
||||
turn_on(READ_IMPLIES_EXEC, options);
|
||||
break;
|
||||
case 'B':
|
||||
turn_on(ADDR_LIMIT_32BIT, options);
|
||||
break;
|
||||
case 'I':
|
||||
turn_on(SHORT_INODE, options);
|
||||
break;
|
||||
case 'S':
|
||||
turn_on(WHOLE_SECONDS, options);
|
||||
break;
|
||||
case 'T':
|
||||
turn_on(STICKY_TIMEOUTS, options);
|
||||
break;
|
||||
case '3':
|
||||
turn_on(ADDR_LIMIT_3GB, options);
|
||||
break;
|
||||
case OPT_4GB: /* just ignore this one */
|
||||
break;
|
||||
case OPT_UNAME26:
|
||||
turn_on(UNAME26, options);
|
||||
break;
|
||||
default:
|
||||
show_usage(NULL);
|
||||
}
|
||||
}
|
||||
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (set_arch(p, options, 0))
|
||||
err(EXIT_FAILURE, _("Failed to set personality to %s"), p);
|
||||
if (set_arch(p, options, 0))
|
||||
err(EXIT_FAILURE, _("Failed to set personality to %s"), p);
|
||||
|
||||
/* flush all output streams before exec */
|
||||
fflush(NULL);
|
||||
/* flush all output streams before exec */
|
||||
fflush(NULL);
|
||||
|
||||
if (!argc) {
|
||||
execl("/bin/sh", "-sh", NULL);
|
||||
err(EXIT_FAILURE, _("failed to execute %s"), "/bin/sh");
|
||||
}
|
||||
if (!argc) {
|
||||
execl("/bin/sh", "-sh", NULL);
|
||||
err(EXIT_FAILURE, _("failed to execute %s"), "/bin/sh");
|
||||
}
|
||||
|
||||
execvp(argv[0], argv);
|
||||
err(EXIT_FAILURE, "%s", argv[0]);
|
||||
return EXIT_FAILURE;
|
||||
execvp(argv[0], argv);
|
||||
err(EXIT_FAILURE, "%s", argv[0]);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue