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| author | Will Deacon | 2012-07-19 18:46:44 +0200 |
|---|---|---|
| committer | Russell King | 2012-07-28 12:11:51 +0200 |
| commit | ad82cc08f70486b5741560b1b2121dadf82897de (patch) | |
| tree | 4e95106f82bf8d7db53fbbec1c04b81c36b1243e /arch/arm/kernel/ptrace.c | |
| parent | ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit} (diff) | |
| download | kernel-qcow2-linux-ad82cc08f70486b5741560b1b2121dadf82897de.tar.gz kernel-qcow2-linux-ad82cc08f70486b5741560b1b2121dadf82897de.tar.xz kernel-qcow2-linux-ad82cc08f70486b5741560b1b2121dadf82897de.zip | |
ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK""
This reverts commit 433e2f307beff8adba241646ce9108544e0c5a03.
Conflicts:
arch/arm/kernel/ptrace.c
Reintroduce the new syscall restart handling in preparation for further
patches from Al Viro.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/ptrace.c')
| -rw-r--r-- | arch/arm/kernel/ptrace.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index dab711e6e1ca..efd25d65ae13 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -25,6 +25,7 @@ #include <linux/regset.h> #include <linux/audit.h> #include <linux/tracehook.h> +#include <linux/unistd.h> #include <asm/pgtable.h> #include <asm/traps.h> @@ -940,7 +941,12 @@ static int ptrace_syscall_trace(struct pt_regs *regs, int scno, asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno) { - int ret = ptrace_syscall_trace(regs, scno, PTRACE_SYSCALL_ENTER); + int ret; + + if (test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS)) + scno = __NR_restart_syscall - __NR_SYSCALL_BASE; + + ret = ptrace_syscall_trace(regs, scno, PTRACE_SYSCALL_ENTER); audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1, regs->ARM_r2, regs->ARM_r3); return ret; |