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author | Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | 2018-06-02 08:43:53 -0400 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2018-06-06 11:58:31 +0200 |
commit | b575e837215325544b0dbcef912f13f369de4f3f (patch) | |
tree | e05b1dba86d602dfb295a3dbf2cb91fa48866017 /include/uapi/linux/rseq.h | |
parent | 716a685fdb89942a50c4138141027e38336a895f (diff) | |
download | linux-stable-b575e837215325544b0dbcef912f13f369de4f3f.tar.gz linux-stable-b575e837215325544b0dbcef912f13f369de4f3f.tar.bz2 linux-stable-b575e837215325544b0dbcef912f13f369de4f3f.zip |
uapi/headers: Provide types_32_64.h
Provide helper macros for fields which represent pointers in
kernel-userspace ABI. This facilitates handling of 32-bit
user-space by 64-bit kernels by defining those fields as
32-bit 0-padding and 32-bit integer on 32-bit architectures,
which allows the kernel to treat those as 64-bit integers.
The order of padding and 32-bit integer depends on the
endianness.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Chris Lameter <cl@linux.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Hunter <ahh@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Maurer <bmaurer@fb.com>
Cc: linux-api@vger.kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lkml.kernel.org/r/20180602124408.8430-2-mathieu.desnoyers@efficios.com
Diffstat (limited to 'include/uapi/linux/rseq.h')
0 files changed, 0 insertions, 0 deletions