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LibC+Kernel: Start implementing sysconf

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For now, only the non-standard _SC_NPROCESSORS_CONF and
_SC_NPROCESSORS_ONLN are implemented.

Use them to make ninja pick a better default -j value.
While here, make the ninja package script not fail if
no other port has been built yet.
This commit is contained in:
Nico Weber 2020-07-14 16:41:59 -04:00 • committed by Andreas Kling
parent 782cd93c01
commit 4eb967b5eb
9 changed files with 34 additions and 14 deletions
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6
Libraries/LibC/unistd.cpp
View file

@ -722,4 +722,10 @@ char* getpass(const char* prompt)
dbg() << "FIXME: getpass(\"" << prompt << "\")";
ASSERT_NOT_REACHED();
}
long sysconf(int name)
{
int rc = syscall(SC_sysconf, name);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}