linux-kernel - [PATCH 2/7] add syscall tracepoints

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

Message-Id: <60b91c42482cf69f925b43dc3e2c322da0f36130.1244837725.git.jbaron@redhat.com>
Date:	Fri, 12 Jun 2009 17:24:44 -0400
From:	Jason Baron <jbaron@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	fweisbec@...il.com, mingo@...e.hu, laijs@...fujitsu.com,
	rostedt@...dmis.org, peterz@...radead.org,
	mathieu.desnoyers@...ymtl.ca, jiayingz@...gle.com,
	bligh@...gle.com, roland@...hat.com, fche@...hat.com
Subject: [PATCH 2/7] add syscall tracepoints


Call arch_init_ftrace_syscalls at boot, so we can determine the set of syscalls
for the syscall trace events.


Signed-off-by: Jason Baron <jbaron@...hat.com>

---
 arch/x86/kernel/ftrace.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 30baa5b..9f2aa83 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -518,7 +518,7 @@ int syscall_name_to_nr(char *name)
 	return -1;
 }
 
-void arch_init_ftrace_syscalls(void)
+int arch_init_ftrace_syscalls(void)
 {
 	int i;
 	struct syscall_metadata *meta;
@@ -532,17 +532,19 @@ void arch_init_ftrace_syscalls(void)
 					FTRACE_SYSCALL_MAX, GFP_KERNEL);
 	if (!syscalls_metadata) {
 		WARN_ON(1);
-		return;
+		return -ENOMEM;
 	}
 
 	for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {
 		meta = find_syscall_meta(psys_syscall_table[i]);
 		syscalls_metadata[i] = meta;
 	}
-	return;
+	return 0;
 
 	/* Paranoid: avoid overflow */
 end:
 	atomic_dec(&refs);
+	return 0;
 }
+arch_initcall(arch_init_ftrace_syscalls);
 #endif
-- 
1.6.0.6

--
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/