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FreeBSD: fix internal sysctlbyname

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I used the libc interface rather than the syscall interface.
The syscall also has the name length which libc adds.
This commit is contained in:
Paul Floyd 2023-02-03 13:51:04 +01:00
parent cdabd4ba74
commit 4c80a467a9
1 changed files with 2 additions and 1 deletions
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3
coregrind/m_libcproc.c
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@ -1200,8 +1200,9 @@ void VG_(do_atfork_child)(ThreadId tid)
#if defined(VGO_freebsd)
Int VG_(sysctlbyname)(const HChar *name, void *oldp, SizeT *oldlenp, const void *newp, SizeT newlen)
{
vg_assert(name);
#if (FREEBSD_VERS >= FREEBSD_12_2)
SysRes res = VG_(do_syscall5)(__NR___sysctlbyname, (UWord)name, (UWord)oldp, (UWord)oldlenp, (UWord)newp, (UWord)newlen);
SysRes res = VG_(do_syscall6)(__NR___sysctlbyname, (RegWord)name, VG_(strlen)(name), (RegWord)oldp, (RegWord)oldlenp, (RegWord)newp, (RegWord)newlen);
return sr_isError(res) ? -1 : sr_Res(res);
#else
Int oid[2];