aboutsummaryrefslogtreecommitdiff
path: root/arch/um/sys-i386/ptrace_user.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/um/sys-i386/ptrace_user.c')
-rw-r--r--arch/um/sys-i386/ptrace_user.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c
index 7c376c95de5..9f3bd8ed78f 100644
--- a/arch/um/sys-i386/ptrace_user.c
+++ b/arch/um/sys-i386/ptrace_user.c
@@ -14,6 +14,7 @@
#include "sysdep/thread.h"
#include "user.h"
#include "os.h"
+#include "uml-config.h"
int ptrace_getregs(long pid, unsigned long *regs_out)
{
@@ -43,6 +44,7 @@ int ptrace_setfpregs(long pid, unsigned long *regs)
return 0;
}
+/* All the below stuff is of interest for TT mode only */
static void write_debugregs(int pid, unsigned long *regs)
{
struct user *dummy;
@@ -75,7 +77,6 @@ static void read_debugregs(int pid, unsigned long *regs)
/* Accessed only by the tracing thread */
static unsigned long kernel_debugregs[8] = { [ 0 ... 7 ] = 0 };
-static int debugregs_seq = 0;
void arch_enter_kernel(void *task, int pid)
{
@@ -89,6 +90,11 @@ void arch_leave_kernel(void *task, int pid)
write_debugregs(pid, TASK_DEBUGREGS(task));
}
+#ifdef UML_CONFIG_PT_PROXY
+/* Accessed only by the tracing thread */
+static int debugregs_seq;
+
+/* Only called by the ptrace proxy */
void ptrace_pokeuser(unsigned long addr, unsigned long data)
{
if((addr < offsetof(struct user, u_debugreg[0])) ||
@@ -109,6 +115,7 @@ static void update_debugregs_cb(void *arg)
write_debugregs(pid, kernel_debugregs);
}
+/* Optimized out in its header when not defined */
void update_debugregs(int seq)
{
int me;
@@ -118,6 +125,7 @@ void update_debugregs(int seq)
me = os_getpid();
initial_thread_cb(update_debugregs_cb, &me);
}
+#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.