(tdep_debug_level): Define.

(Logical change 1.154)

src/ia64/Gglobal-ia64.c

@@ -0,0 +1,125 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2002-2004 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+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 "unwind_i.h"
+
+HIDDEN struct ia64_global_unwind_state unw =
+  {
+    .needs_initialization = 1,
+    .lock = PTHREAD_MUTEX_INITIALIZER,
+    .save_order = {
+      IA64_REG_IP, IA64_REG_PFS, IA64_REG_PSP, IA64_REG_PR,
+      IA64_REG_UNAT, IA64_REG_LC, IA64_REG_FPSR, IA64_REG_PRI_UNAT_GR
+    },
+#if UNW_DEBUG
+    .preg_name = {
+      "pri_unat_gr", "pri_unat_mem", "psp", "bsp", "bspstore",
+      "ar.pfs", "ar.rnat", "rp",
+      "r4", "r5", "r6", "r7",
+      "nat4", "nat5", "nat6", "nat7",
+      "ar.unat", "pr", "ar.lc", "ar.fpsr",
+      "b1", "b2", "b3", "b4", "b5",
+      "f2", "f3", "f4", "f5",
+      "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
+      "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"
+    }
+#endif
+};
+
+HIDDEN void
+ia64_init (void)
+{
+  extern void unw_hash_index_t_is_too_narrow (void);
+  uint8_t f1_bytes[16] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
+    0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+  uint8_t nat_val_bytes[16] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xfe,
+    0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+  uint8_t int_val_bytes[16] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xfe,
+    0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+  sigset_t saved_sigmask;
+  uint8_t *lep, *bep;
+  long i;
+
+  sigfillset (&unwi_full_sigmask);
+
+  sigprocmask (SIG_SETMASK, &unwi_full_sigmask, &saved_sigmask);
+  mutex_lock (&unw.lock);
+  {
+    if (!unw.needs_initialization)
+      /* another thread else beat us to it... */
+      goto out;
+
+    mi_init ();
+
+    mempool_init (&unw.reg_state_pool, sizeof (struct ia64_reg_state), 0);
+    mempool_init (&unw.labeled_state_pool,
+		  sizeof (struct ia64_labeled_state), 0);
+
+    unw.r0 = 0;
+    unw.f0.raw.bits[0] = 0;
+    unw.f0.raw.bits[1] = 0;
+
+    lep = (uint8_t *) &unw.f1_le + 16;
+    bep = (uint8_t *) &unw.f1_be;
+    for (i = 0; i < 16; ++i)
+      {
+	*--lep = f1_bytes[i];
+	*bep++ = f1_bytes[i];
+      }
+
+    lep = (uint8_t *) &unw.nat_val_le + 16;
+    bep = (uint8_t *) &unw.nat_val_be;
+    for (i = 0; i < 16; ++i)
+      {
+	*--lep = nat_val_bytes[i];
+	*bep++ = nat_val_bytes[i];
+      }
+
+    lep = (uint8_t *) &unw.int_val_le + 16;
+    bep = (uint8_t *) &unw.int_val_be;
+    for (i = 0; i < 16; ++i)
+      {
+	*--lep = int_val_bytes[i];
+	*bep++ = int_val_bytes[i];
+      }
+
+    if (8*sizeof(unw_hash_index_t) < IA64_LOG_UNW_HASH_SIZE)
+      unw_hash_index_t_is_too_narrow ();
+
+#ifndef UNW_REMOTE_ONLY
+    ia64_local_addr_space_init ();
+#endif
+    unw.needs_initialization = 0;	/* signal that we're initialized... */
+  }
+ out:
+  mutex_unlock (&unw.lock);
+  sigprocmask (SIG_SETMASK, &saved_sigmask, NULL);
+}