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| author | Sami Kerola | 2013-04-02 21:42:53 +0200 |
|---|---|---|
| committer | Karel Zak | 2013-04-05 14:03:07 +0200 |
| commit | 5d1607e260be44a03067f09cc2034d2208c713de (patch) | |
| tree | cc8a84b6b283a7c1b1e59cf11d53a8dcf3c721d1 /sys-utils/setarch.c | |
| parent | chrt: make command syntax easier to understand in usage() (diff) | |
| download | kernel-qcow2-util-linux-5d1607e260be44a03067f09cc2034d2208c713de.tar.gz kernel-qcow2-util-linux-5d1607e260be44a03067f09cc2034d2208c713de.tar.xz kernel-qcow2-util-linux-5d1607e260be44a03067f09cc2034d2208c713de.zip | |
setarch: add option to list settable architectures
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Diffstat (limited to 'sys-utils/setarch.c')
| -rw-r--r-- | sys-utils/setarch.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/sys-utils/setarch.c b/sys-utils/setarch.c index afa2d1bf1..f6c0e2061 100644 --- a/sys-utils/setarch.c +++ b/sys-utils/setarch.c @@ -110,6 +110,8 @@ show_help(void) " -3, --3gb limits the used address space to a maximum of 3 GB\n" " --4gb ignored (for backward compatibility only)\n" " --uname-2.6 turns on UNAME26\n")); + printf(_( + " --list list settable architectures, and exit\n")); printf(USAGE_SEPARATOR); printf(USAGE_HELP); @@ -136,7 +138,7 @@ show_version(void) } static int -set_arch(const char *pers, unsigned long options) +set_arch(const char *pers, unsigned long options, int list) { struct utsname un; int i; @@ -198,6 +200,12 @@ set_arch(const char *pers, unsigned long options) {-1, NULL, NULL} }; + if (list) { + for(i = 0; transitions[i].target_arch != NULL; i++) + printf("%s\n", transitions[i].target_arch); + return 0; + } + for(i = 0; transitions[i].perval >= 0; i++) if(!strcmp(pers, transitions[i].target_arch)) break; @@ -273,10 +281,14 @@ int main(int argc, char *argv[]) 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)) + 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"); @@ -337,7 +349,7 @@ int main(int argc, char *argv[]) argc -= optind; argv += optind; - if (set_arch(p, options)) + if (set_arch(p, options, 0)) err(EXIT_FAILURE, _("Failed to set personality to %s"), p); if (!argc) { |