linux-kernel - [RFC][PATCH -tip 3/9] ia64: add kernel_trap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Thu, 19 Mar 2009 17:10:16 -0400
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	"Luck, Tony" <tony.luck@...el.com>, Ingo Molnar <mingo@...e.hu>
CC:	LKML <linux-kernel@...r.kernel.org>,
	systemtap-ml <systemtap@...rces.redhat.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	ia64 <linux-ia64@...r.kernel.org>
Subject: [RFC][PATCH -tip 3/9] ia64: add kernel_trap_sp()

Add kernel_trap_sp() on ia64, based on systemtap's runtime/regs.h.

Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: Tony Luck <tony.luck@...el.com>
---
 arch/ia64/include/asm/ptrace.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h
index 14055c6..3a7dfcb 100644
--- a/arch/ia64/include/asm/ptrace.h
+++ b/arch/ia64/include/asm/ptrace.h
@@ -246,6 +246,12 @@ static inline unsigned long user_stack_pointer(struct pt_regs *regs)
 	return regs->ar_bspstore;
 }

+static inline unsigned long kernel_trap_sp(struct pt_regs *regs)
+{
+	/* interrupted task's memory stack pointer is r12 */
+	return regs->r12;
+}
+
 #define regs_return_value(regs) ((regs)->r8)

 /* Conserve space in histogram by encoding slot bits in address
-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division

e-mail: mhiramat@...hat.com


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/