Rename common to gdbsupport

[deliverable/binutils-gdb.git] / gdb / gdbserver / linux-x86-low.c

diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c
index 056d06004635059380fa24e7598b6e153f0fb6f0..cb0169c4bd5649b82b87497738dbba26d4a6e36b 100644 (file)
--- a/gdb/gdbserver/linux-x86-low.c
+++ b/gdb/gdbserver/linux-x86-low.c
@@ -24,7 +24,7 @@
 #include "linux-low.h"
 #include "i387-fp.h"
 #include "x86-low.h"
-#include "x86-xstate.h"
+#include "gdbsupport/x86-xstate.h"
 #include "nat/gdb_ptrace.h"
 
 #ifdef __x86_64__
@@ -38,7 +38,7 @@
 #include "elf/common.h"
 #endif
 
-#include "agent.h"
+#include "gdbsupport/agent.h"
 #include "tdesc.h"
 #include "tracepoint.h"
 #include "ax.h"
@@ -338,6 +338,21 @@ x86_fill_gregset (struct regcache *regcache, void *buf)
 
   collect_register_by_name (regcache, "orig_eax",
                            ((char *) buf) + ORIG_EAX * REGSIZE);
+
+#ifdef __x86_64__
+  /* Sign extend EAX value to avoid potential syscall restart
+     problems. 
+
+     See amd64_linux_collect_native_gregset() in gdb/amd64-linux-nat.c
+     for a detailed explanation.  */
+  if (register_size (regcache->tdesc, 0) == 4)
+    {
+      void *ptr = ((gdb_byte *) buf
+                   + i386_regmap[find_regno (regcache->tdesc, "eax")]);
+
+      *(int64_t *) ptr = *(int32_t *) ptr;
+    }
+#endif
 }
 
 static void
@@ -1466,7 +1481,7 @@ x86_get_min_fast_tracepoint_insn_len (void)
             mention that something has gone awry.  */
          if (!warned_about_fast_tracepoints)
            {
-             warning ("4-byte fast tracepoints not available; %s\n", errbuf);
+             warning ("4-byte fast tracepoints not available; %s", errbuf);
              warned_about_fast_tracepoints = 1;
            }
          return 5;
@@ -2896,10 +2911,6 @@ initialize_low_arch (void)
   tdesc_amd64_linux_no_xml->xmltarget = xmltarget_amd64_linux_no_xml;
 #endif
 
-#if GDB_SELF_TEST
-  initialize_low_tdesc ();
-#endif
-
   tdesc_i386_linux_no_xml = allocate_target_description ();
   copy_target_description (tdesc_i386_linux_no_xml,
                           i386_linux_read_description (X86_XSTATE_SSE_MASK));