From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 8/9] ARM: entry: provide uaccess assembly macro hooks
Date: Thu, 27 Aug 2015 14:40:05 -0700 [thread overview]
Message-ID: <20150827214005.GX19120@codeaurora.org> (raw)
In-Reply-To: <E1ZSmQB-0002zT-A6@rmk-PC.arm.linux.org.uk>
On 08/21, Russell King wrote:
> @@ -400,6 +402,10 @@ ENDPROC(__fiq_abt)
> ARM( stmdb r0, {sp, lr}^ )
> THUMB( store_user_sp_lr r0, r1, S_SP - S_PC )
>
> + .if \uaccess
This \u seems to trip up my clang build. It seems that the
assembler thinks \u is escaping for unicode or something?
arch/arm/kernel/entry-armv.S:202:
Error: non-constant expression in ".if" statement
Looking at the intermediate assembly file I see:
.if ??ss
uaccess_disable ip
.endif
Changing 'uaccess' to 'access' seems to make the problem go away.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2015-08-27 21:40 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-18 21:42 Prevent list poison values from being mapped by userspace processes Jeffrey Vander Stoep
2015-08-21 13:30 ` Russell King - ARM Linux
2015-08-21 13:31 ` [PATCH 1/9] ARM: domains: switch to keeping domain value in register Russell King
2015-08-21 13:31 ` [PATCH 2/9] ARM: domains: provide domain_mask() Russell King
2015-08-21 13:31 ` [PATCH 3/9] ARM: domains: move initial domain setting value to asm/domains.h Russell King
2015-08-21 13:31 ` [PATCH 4/9] ARM: domains: get rid of manager mode for user domain Russell King
2015-08-21 13:31 ` [PATCH 5/9] ARM: domains: keep vectors in separate domain Russell King
2015-08-21 13:31 ` [PATCH 6/9] ARM: domains: remove DOMAIN_TABLE Russell King
2015-08-21 13:31 ` [PATCH 7/9] ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore() Russell King
2015-08-21 13:31 ` [PATCH 8/9] ARM: entry: provide uaccess assembly macro hooks Russell King
2015-08-27 21:40 ` Stephen Boyd [this message]
2015-08-21 13:31 ` [PATCH 9/9] ARM: software-based priviledged-no-access support Russell King
2015-08-25 10:32 ` Geert Uytterhoeven
2015-08-25 10:44 ` Russell King - ARM Linux
2015-08-25 11:21 ` Geert Uytterhoeven
2015-08-25 12:38 ` Russell King - ARM Linux
2015-08-25 12:47 ` Geert Uytterhoeven
2015-08-25 13:55 ` Nicolas Schichan
2015-08-25 14:05 ` Will Deacon
2015-08-21 13:46 ` [PATCH 0/4] Efficiency cleanups Russell King - ARM Linux
2015-08-21 13:48 ` [PATCH 1/4] ARM: uaccess: simplify user access assembly Russell King
2015-08-21 13:48 ` [PATCH 2/4] ARM: entry: get rid of asm_trace_hardirqs_on_cond Russell King
2015-08-21 13:48 ` [PATCH 3/4] ARM: entry: efficiency cleanups Russell King
2015-08-21 13:48 ` [PATCH 4/4] ARM: entry: ensure that IRQs are enabled when calling syscall_trace_exit() Russell King
2015-08-24 14:36 ` [PATCH 0/4] Efficiency cleanups Will Deacon
2015-08-24 15:00 ` Russell King - ARM Linux
2015-08-21 17:32 ` Prevent list poison values from being mapped by userspace processes Catalin Marinas
2015-08-24 12:06 ` Russell King - ARM Linux
2015-08-24 13:05 ` Nicolas Schichan
2015-08-25 8:15 ` Russell King - ARM Linux
2015-08-25 13:17 ` Nicolas Schichan
2015-08-24 18:06 ` Kees Cook
2015-08-24 18:47 ` Russell King - ARM Linux
2015-08-24 18:51 ` Kees Cook
2015-08-24 19:14 ` Russell King - ARM Linux
2015-08-24 19:22 ` Kees Cook
2015-08-24 19:32 ` Russell King - ARM Linux
2015-08-24 22:01 ` Kees Cook
2015-08-26 20:34 ` Russell King - ARM Linux
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