43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/* $NetBSD: libfakesyscall.c,v 1.2 2015/03/21 23:59:25 tnn2 Exp $ */
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#define _GNU_SOURCE
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#include <sys/syscall.h>
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#include <dlfcn.h>
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#include <errno.h>
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#include <unistd.h>
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#ifndef PR_SET_NAME
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#define PR_SET_NAME 15
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#endif
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/*
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* This library override some problematic Linux syscalls while debootstrap runs.
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*
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* To build:
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* gcc -O2 -fPIC -shared -m64 -o libfakesyscall-amd64.so libfakesyscall.c
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* gcc -O2 -fPIC -shared -m32 -o libfakesyscall-i386.so libfakesyscall.c
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*/
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/*
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* NetBSD does not emulate prctl(2), pretend it works for PR_SET_NAME.
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* Needed by some of the Debian base tools.
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*/
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int prctl(int option, unsigned long arg2, unsigned long arg3,
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unsigned long arg4, unsigned long arg5) {
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if (option == PR_SET_NAME) {
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return 0;
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}
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return syscall(SYS_prctl, option, arg2, arg3, arg4, arg5);
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}
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/*
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* NetBSD does not emulate this and we don't want the chroot to mess
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* with mounts anyway.
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*/
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int mount(const char *source, const char *target,
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const char *filesystemtype, unsigned long mountflags,
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const void *data) {
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return 0;
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}
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