From 04f7a3f12e10032ee3d44df1a509dbf5b2001fce Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 28 Feb 2011 13:08:32 -0500 Subject: arch/tile: bug fix: exec'ed task thought it was still single-stepping To handle single-step, tile mmap's a page of memory in the process space for each thread and uses it to construct a version of the instruction that we want to single step. If the process exec's, though, we lose that mapping, and the kernel needs to be aware that it will need to recreate it if the exec'ed process than tries to single-step as well. Also correct some int32_t to s32 for better kernel style. Signed-off-by: Chris Metcalf --- arch/tile/kernel/process.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/tile/kernel/process.c') diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index e90eb53173b0..5db8b5b63cea 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -574,6 +574,8 @@ SYSCALL_DEFINE4(execve, const char __user *, path, goto out; error = do_execve(filename, argv, envp, regs); putname(filename); + if (error == 0) + single_step_execve(); out: return error; } @@ -593,6 +595,8 @@ long compat_sys_execve(const char __user *path, goto out; error = compat_do_execve(filename, argv, envp, regs); putname(filename); + if (error == 0) + single_step_execve(); out: return error; } -- cgit v1.2.3