[PATCH v2] gdb: xtensa: fix linux ptrace includes

[Baruch Siach <baruch@tkos.co.il>]

Currently, xtensa code using the Linux ptrace interface only include
sys/ptrace.h. This file comes from the C library (glibc and uClibc, at least),
and includes a declaration of the ptrace() functions, along with some cross
architecture constants that are mostly copied from the file located at
include/uapi/linux/ptrace.h in recent Linux kernels.

For xtensa specific constants like PTRACE_GETXTREGS and PTRACE_SETXTREGS the
asm/ptrace.h include from the Linux kernel UAPI is needed. The code in
gdbserver xtensa specific part doesn't call ptrace() directly, so we can
remove the unneeded sys/ptrace.h include. The gdb xtensa specific code needs
both headers, since it calls ptrace().

gdb/
	* xtensa-linux-nat.c: add #include asm/ptrace.h.

gdb/gdbserver/
	* linux-xtensa-low.c: #include asm/ptrace.h instead of sys/ptrace.h.
---
 gdb/gdbserver/linux-xtensa-low.c | 2 +-
 gdb/xtensa-linux-nat.c           | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/gdb/gdbserver/linux-xtensa-low.c b/gdb/gdbserver/linux-xtensa-low.c
index 7db97a9..479b65b 100644
--- a/gdb/gdbserver/linux-xtensa-low.c
+++ b/gdb/gdbserver/linux-xtensa-low.c
@@ -24,7 +24,7 @@
 void init_registers_xtensa (void);
 extern const struct target_desc *tdesc_xtensa;
 
-#include <sys/ptrace.h>
+#include <asm/ptrace.h>
 #include <xtensa-config.h>
 
 #include "xtensa-xtregs.c"
diff --git a/gdb/xtensa-linux-nat.c b/gdb/xtensa-linux-nat.c
index 2372e79..9340c62 100644
--- a/gdb/xtensa-linux-nat.c
+++ b/gdb/xtensa-linux-nat.c
@@ -36,6 +36,7 @@
 #include <fcntl.h>
 #include <sys/procfs.h>
 #include <sys/ptrace.h>
+#include <asm/ptrace.h>
 
 #include "gregset.h"
 #include "xtensa-tdep.h"
-- 
1.8.5.2