+2015-06-01 Yao Qi <yao.qi@linaro.org>
+
+ * arm-linux-nat.c (arm_linux_read_description): Check whether
+ kernel supports PTRACE_GETREGSET.
+
2015-06-01 Yao Qi <yao.qi@linaro.org>
* x86-linux-nat.c (have_ptrace_getregset): Move it to ...
{
CORE_ADDR arm_hwcap = 0;
+ if (have_ptrace_getregset == -1)
+ {
+ elf_gregset_t gpregs;
+ struct iovec iov;
+ int tid = GET_THREAD_ID (inferior_ptid);
+
+ iov.iov_base = &gpregs;
+ iov.iov_len = sizeof (gpregs);
+
+ /* Check if PTRACE_GETREGSET works. */
+ if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, &iov) < 0)
+ have_ptrace_getregset = 0;
+ else
+ have_ptrace_getregset = 1;
+ }
+
if (target_auxv_search (ops, AT_HWCAP, &arm_hwcap) != 1)
{
return ops->beneath->to_read_description (ops->beneath);