| 1 | /* glibc-hwcaps subdirectory test. s390x version. |
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| 2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <stdio.h> |
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| 20 | #include <string.h> |
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| 21 | #include <support/check.h> |
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| 22 | #include <sys/auxv.h> |
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| 23 | #include <sys/param.h> |
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| 24 | |
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| 25 | extern int marker2 (void); |
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| 26 | extern int marker3 (void); |
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| 27 | extern int marker4 (void); |
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| 28 | extern int marker5 (void); |
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| 29 | |
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| 30 | /* Return the arch level, 10 for the baseline libmarkermod*.so's. */ |
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| 31 | static int |
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| 32 | compute_level (void) |
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| 33 | { |
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| 34 | const char *platform = (const char *) getauxval (AT_PLATFORM); |
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| 35 | |
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| 36 | /* The arch* versions refer to the edition of the Principles of |
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| 37 | Operation, and they are off by two when compared with the recent |
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| 38 | product names. (The code below should not be considered an |
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| 39 | accurate mapping to Principles of Operation editions for earlier |
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| 40 | AT_PLATFORM strings). */ |
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| 41 | if (strcmp (platform, "z900" ) == 0) |
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| 42 | return 10; |
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| 43 | if (strcmp (platform, "z990" ) == 0) |
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| 44 | return 10; |
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| 45 | if (strcmp (platform, "z9-109" ) == 0) |
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| 46 | return 10; |
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| 47 | if (strcmp (platform, "z10" ) == 0) |
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| 48 | return 10; |
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| 49 | if (strcmp (platform, "z196" ) == 0) |
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| 50 | return 10; |
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| 51 | if (strcmp (platform, "zEC12" ) == 0) |
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| 52 | return 10; |
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| 53 | |
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| 54 | /* If we are running on z13 or newer and the kernel was booted with novx, |
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| 55 | then AT_PLATFORM is z13 or newer, but _dl_hwcaps_subdirs_active will |
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| 56 | return zero and the _dl_hwcaps_subdirs are not searched. */ |
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| 57 | const unsigned long int hwcap = getauxval (AT_HWCAP); |
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| 58 | if ((hwcap & HWCAP_S390_VX) == 0) |
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| 59 | return 10; |
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| 60 | |
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| 61 | if (strcmp (platform, "z13" ) == 0) |
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| 62 | return 11; |
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| 63 | if (strcmp (platform, "z14" ) == 0) |
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| 64 | return 12; |
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| 65 | if (strcmp (platform, "z15" ) == 0) |
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| 66 | return 13; |
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| 67 | if (strcmp (platform, "z16" ) == 0) |
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| 68 | return 14; |
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| 69 | printf (format: "warning: unrecognized AT_PLATFORM value: %s\n" , platform); |
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| 70 | /* Assume that the new platform supports z16. */ |
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| 71 | return 14; |
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| 72 | } |
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| 73 | |
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| 74 | static int |
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| 75 | do_test (void) |
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| 76 | { |
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| 77 | int level = compute_level (); |
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| 78 | printf (format: "info: detected architecture level: arch%d\n" , level); |
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| 79 | TEST_COMPARE (marker2 (), MIN (level - 9, 2)); |
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| 80 | TEST_COMPARE (marker3 (), MIN (level - 9, 3)); |
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| 81 | TEST_COMPARE (marker4 (), MIN (level - 9, 4)); |
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| 82 | TEST_COMPARE (marker5 (), MIN (level - 9, 5)); |
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| 83 | return 0; |
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| 84 | } |
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| 85 | |
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| 86 | #include <support/test-driver.c> |
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| 87 | |
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