Thread (18 messages) flat view 18 messages, 6 authors, 2018-08-11

Re: [PATCH 1/6] alpha: Move __IGNORE* entries to non uapi header

From: Michael Cree <hidden>
Date: 2018-08-11 21:17:35
Also in: linux-arch, lkml

On Sat, Aug 11, 2018 at 08:28:04PM +0100, Al Viro wrote:
On Mon, Jul 16, 2018 at 03:53:53PM +0530, Firoz Khan wrote:
quoted
It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.
quoted
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
index e153ca6..3bb6ac1 100644
--- a/arch/alpha/include/uapi/asm/unistd.h
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -481,9 +481,4 @@
 #define __NR_pwritev2			521
 #define __NR_statx			522
 
-/* Alpha doesn't have protection keys. */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #endif /* _UAPI_ALPHA_UNISTD_H */
Hmm...  There's also

#define __IGNORE_alarm
#define __IGNORE_creat
Tell you what, I wouldn't mind if the following ones were actually
implemented as syscalls in the kernel on Alpha:
#define __IGNORE_getegid
#define __IGNORE_geteuid
#define __IGNORE_getgid
#define __IGNORE_getpid
#define __IGNORE_getppid
#define __IGNORE_getuid
There's a growing number of software packages that are deciding
to sideskip glibc and call these syscalls directly.  Supporting
OSF's C ABI incompliant getxpid, etc., in such packages is not
easy and rather intrusive.

Cheers,
Michael.
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