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author | Florian Weimer <fweimer@redhat.com> | 2020-12-04 09:13:43 +0100 |
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committer | Florian Weimer <fweimer@redhat.com> | 2020-12-04 14:50:49 +0100 |
commit | 4c38c1a229bc3628269ad98bd7e8d31d118d91f6 (patch) | |
tree | 0f012a89d499b54b68e58146c613138159c42519 /sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c | |
parent | 93fda28693f0d9060b0aa71eeacaacfe9f16896e (diff) | |
download | glibc-4c38c1a229bc3628269ad98bd7e8d31d118d91f6.tar.gz glibc-4c38c1a229bc3628269ad98bd7e8d31d118d91f6.tar.xz glibc-4c38c1a229bc3628269ad98bd7e8d31d118d91f6.zip |
powerpc64le: Add glibc-hwcaps support
The "power10" and "power9" subdirectories are selected in a way that matches the -mcpu=power10 and -mcpu=power9 options of GCC.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c')
-rw-r--r-- | sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c b/sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c new file mode 100644 index 0000000000..e510fca80a --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c @@ -0,0 +1,54 @@ +/* glibc-hwcaps subdirectory test. powerpc64le version. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <string.h> +#include <support/check.h> +#include <sys/auxv.h> +#include <sys/param.h> + +extern int marker2 (void); +extern int marker3 (void); + +/* Return the POWER level, 8 for the baseline. */ +static int +compute_level (void) +{ + const char *platform = (const char *) getauxval (AT_PLATFORM); + if (strcmp (platform, "power8") == 0) + return 8; + if (strcmp (platform, "power9") == 0) + return 9; + if (strcmp (platform, "power10") == 0) + return 10; + printf ("warning: unrecognized AT_PLATFORM value: %s\n", platform); + /* Assume that the new platform supports POWER10. */ + return 10; +} + +static int +do_test (void) +{ + int level = compute_level (); + printf ("info: detected POWER level: %d\n", level); + TEST_COMPARE (marker2 (), MIN (level - 7, 2)); + TEST_COMPARE (marker3 (), MIN (level - 7, 3)); + return 0; +} + +#include <support/test-driver.c> |