Fix indentation in print_thread_info_1

[deliverable/binutils-gdb.git] / gdb / amd64-linux-nat.c

diff --git a/gdb/amd64-linux-nat.c b/gdb/amd64-linux-nat.c
index 8d0e8eb35cd2bd3af599cae48f888044d3393663..d0328b677d598456909c817c6e9969dc9961645f 100644 (file)
--- a/gdb/amd64-linux-nat.c
+++ b/gdb/amd64-linux-nat.c
@@ -33,7 +33,7 @@
 #include "amd64-tdep.h"
 #include "amd64-linux-tdep.h"
 #include "i386-linux-tdep.h"
-#include "common/x86-xstate.h"
+#include "gdbsupport/x86-xstate.h"
 
 #include "x86-linux-nat.h"
 #include "nat/linux-ptrace.h"
@@ -238,6 +238,12 @@ amd64_linux_nat_target::fetch_registers (struct regcache *regcache, int regnum)
          char xstateregs[X86_XSTATE_MAX_SIZE];
          struct iovec iov;
 
+         /* Pre-4.14 kernels have a bug (fixed by commit 0852b374173b
+            "x86/fpu: Add FPU state copying quirk to handle XRSTOR failure on
+            Intel Skylake CPUs") that sometimes causes the mxcsr location in
+            xstateregs not to be copied by PTRACE_GETREGSET.  Make sure that
+            the location is at least initialized with a defined value.  */
+         memset (xstateregs, 0, sizeof (xstateregs));
          iov.iov_base = xstateregs;
          iov.iov_len = sizeof (xstateregs);
          if (ptrace (PTRACE_GETREGSET, tid,