Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/backends/aarch64_regs.c b/backends/aarch64_regs.c
new file mode 100644
index 0000000..23014bf
--- /dev/null
+++ b/backends/aarch64_regs.c
@@ -0,0 +1,108 @@
+/* Register names and numbers for AArch64 DWARF.
+ Copyright (C) 2013, 2014 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <dwarf.h>
+#include <stdarg.h>
+
+#define BACKEND aarch64_
+#include "libebl_CPU.h"
+
+__attribute__ ((format (printf, 7, 8)))
+static ssize_t
+do_regtype (const char *setname, int type,
+ const char **setnamep, int *typep,
+ char *name, size_t namelen, const char *fmt, ...)
+{
+ *setnamep = setname;
+ *typep = type;
+
+ va_list ap;
+ va_start (ap, fmt);
+ int s = vsnprintf (name, namelen, fmt, ap);
+ va_end(ap);
+
+ if (s < 0 || (unsigned) s >= namelen)
+ return -1;
+ return s + 1;
+}
+
+ssize_t
+aarch64_register_info (Ebl *ebl __attribute__ ((unused)),
+ int regno, char *name, size_t namelen,
+ const char **prefix, const char **setnamep,
+ int *bits, int *typep)
+{
+ if (name == NULL)
+ return 128;
+
+
+ *prefix = "";
+ *bits = 64;
+
+#define regtype(setname, type, ...) \
+ do_regtype(setname, type, setnamep, typep, name, namelen, __VA_ARGS__)
+
+ switch (regno)
+ {
+ case 0 ... 30:
+ return regtype ("integer", DW_ATE_signed, "x%d", regno);
+
+ case 31:
+ return regtype ("integer", DW_ATE_address, "sp");
+
+ case 32:
+ return 0;
+
+ case 33:
+ return regtype ("integer", DW_ATE_address, "elr");
+
+ case 34 ... 63:
+ return 0;
+
+ case 64 ... 95:
+ /* FP/SIMD register file supports a variety of data types--it
+ can be thought of as a register holding a single integer or
+ floating-point value, or a vector of 8-, 16-, 32- or 64-bit
+ integers. 128-bit quad-word is the only singular value that
+ covers the whole register, so mark the register thus. */
+ *bits = 128;
+ return regtype ("FP/SIMD", DW_ATE_unsigned, "v%d", regno - 64);
+
+ case 96 ... 127:
+ return 0;
+
+ default:
+ return -1;
+ }
+}