Add initial ARM and MIPS support. To support this, also enable the

reading of .debug_frame sections (used in lieu of .eh_frame sections
when they're not available).

1 files changed, 66 insertions, 0 deletions

diff --git a/src/arm/Gglobal.c b/src/arm/Gglobal.c
new file mode 100644
index 00000000..40374327
--- /dev/null
+++ b/src/arm/Gglobal.c
@@ -0,0 +1,66 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2008 CodeSourcery
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include <ucontext.h>
+#include "unwind_i.h"
+#include "dwarf_i.h"
+
+HIDDEN pthread_mutex_t arm_lock = PTHREAD_MUTEX_INITIALIZER;
+HIDDEN int tdep_needs_initialization = 1;
+
+/* FIXME: I'm pretty sure we don't need this at all for ARM, but "generic"
+   code (include/dwarf_i.h) seems to expect it to be here at present.  */
+
+HIDDEN uint8_t dwarf_to_unw_regnum_map[16] =
+  {
+    R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15
+  };
+
+HIDDEN void
+tdep_init (void)
+{
+  intrmask_t saved_mask;
+
+  sigfillset (&unwi_full_mask);
+
+  sigprocmask (SIG_SETMASK, &unwi_full_mask, &saved_mask);
+  mutex_lock (&arm_lock);
+  {
+    if (!tdep_needs_initialization)
+      /* another thread else beat us to it... */
+      goto out;
+
+    mi_init ();
+
+    dwarf_init ();
+
+#ifndef UNW_REMOTE_ONLY
+    arm_local_addr_space_init ();
+#endif
+    tdep_needs_initialization = 0;	/* signal that we're initialized... */
+  }
+ out:
+  mutex_unlock (&arm_lock);
+  sigprocmask (SIG_SETMASK, &saved_mask, NULL);
+}