diff options
Diffstat (limited to 'libc/bionic/sysconf.cpp')
| -rw-r--r-- | libc/bionic/sysconf.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libc/bionic/sysconf.cpp b/libc/bionic/sysconf.cpp index 67f48e7f3..418072107 100644 --- a/libc/bionic/sysconf.cpp +++ b/libc/bionic/sysconf.cpp @@ -178,6 +178,24 @@ long sysconf(int name) { case _SC_XOPEN_STREAMS: return -1; // Obsolescent in POSIX.1-2008. case _SC_XOPEN_UUCP: return -1; + // We do not have actual implementations for cache queries. + // It's valid to return 0 as the result is unknown. + case _SC_LEVEL1_ICACHE_SIZE: return 0; + case _SC_LEVEL1_ICACHE_ASSOC: return 0; + case _SC_LEVEL1_ICACHE_LINESIZE: return 0; + case _SC_LEVEL1_DCACHE_SIZE: return 0; + case _SC_LEVEL1_DCACHE_ASSOC: return 0; + case _SC_LEVEL1_DCACHE_LINESIZE: return 0; + case _SC_LEVEL2_CACHE_SIZE: return 0; + case _SC_LEVEL2_CACHE_ASSOC: return 0; + case _SC_LEVEL2_CACHE_LINESIZE: return 0; + case _SC_LEVEL3_CACHE_SIZE: return 0; + case _SC_LEVEL3_CACHE_ASSOC: return 0; + case _SC_LEVEL3_CACHE_LINESIZE: return 0; + case _SC_LEVEL4_CACHE_SIZE: return 0; + case _SC_LEVEL4_CACHE_ASSOC: return 0; + case _SC_LEVEL4_CACHE_LINESIZE: return 0; + default: // Posix says EINVAL is the only error that shall be returned, // but glibc uses ENOSYS. |