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| author | jhb <jhb@FreeBSD.org> | 2017-01-09 00:09:19 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2017-01-09 00:09:19 +0000 |
| commit | 44b120a071de01b874fb6d5ebb58459558d1d1f9 (patch) | |
| tree | 3d185aad3958c9a044187d23e83b7acf2daf102c /usr.bin | |
| parent | 7cd474d3812c8f523e8024df5303a51d9ff52ba8 (diff) | |
| download | FreeBSD-src-44b120a071de01b874fb6d5ebb58459558d1d1f9.zip FreeBSD-src-44b120a071de01b874fb6d5ebb58459558d1d1f9.tar.gz | |
MFC 306564: Expose kernel-only errno values if _WANT_KERNEL_ERRNO is defined.
The kernel uses a few negative errno values for internal conditions
such as requesting a system call restart. Normally these errno values
are not exposed to userland. However, kdump needs access to these
values as some of then can be present in a ktrace system call return
record. Previously kdump was defining _KERNEL to gain access to ehse
values, but was then having to manually declare 'errno' (and doing it
incorrectly). Now, kdump uses _WANT_KERNEL_ERRNO instead of _KERNEL
and uses the system-provided declaration of errno.
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/kdump/kdump.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/usr.bin/kdump/kdump.c b/usr.bin/kdump/kdump.c index d03f2ea..389ded2 100644 --- a/usr.bin/kdump/kdump.c +++ b/usr.bin/kdump/kdump.c @@ -41,10 +41,7 @@ static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93"; #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); -#define _KERNEL -extern int errno; -#include <sys/errno.h> -#undef _KERNEL +#define _WANT_KERNEL_ERRNO #include <sys/param.h> #include <sys/capsicum.h> #include <sys/errno.h> |
