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authorElliott Hughes <enh@google.com>2015-02-17 20:56:04 +0000
committerGerrit Code Review <noreply-gerritcodereview@google.com>2015-02-17 20:56:04 +0000
commitb48bfdc826ebdd316d5d8a4ff8f213391f1c710b (patch)
tree961dfef28571e02a7d969fbba9bb51991086476b /src/backends/i386_cfi.c
parent5cb12756f3876faa52b0d4491745fc4c7adbab00 (diff)
parent41f677100e15f315f638774fbd055e497fc90069 (diff)
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Merge "Export elfutils headers and lose the version number from the path."
Diffstat (limited to 'src/backends/i386_cfi.c')
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1 files changed, 65 insertions, 0 deletions
diff --git a/src/backends/i386_cfi.c b/src/backends/i386_cfi.c
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+/* i386 ABI-specified defaults for DWARF CFI.
+ Copyright (C) 2009 Red Hat, Inc.
+ This file is part of Red Hat elfutils.
+
+ Red Hat elfutils is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by the
+ Free Software Foundation; version 2 of the License.
+
+ Red Hat 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 a copy of the GNU General Public License along
+ with Red Hat elfutils; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+ Red Hat elfutils is an included package of the Open Invention Network.
+ An included package of the Open Invention Network is a package for which
+ Open Invention Network licensees cross-license their patents. No patent
+ license is granted, either expressly or impliedly, by designation as an
+ included package. Should you wish to participate in the Open Invention
+ Network licensing program, please visit www.openinventionnetwork.com
+ <http://www.openinventionnetwork.com>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <dwarf.h>
+
+#define BACKEND i386_
+#include "libebl_CPU.h"
+
+int
+i386_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
+{
+ static const uint8_t abi_cfi[] =
+ {
+ /* Call-saved regs. */
+ DW_CFA_same_value, ULEB128_7 (3), /* %ebx */
+ DW_CFA_same_value, ULEB128_7 (5), /* %ebp */
+ DW_CFA_same_value, ULEB128_7 (6), /* %esi */
+ DW_CFA_same_value, ULEB128_7 (7), /* %edi */
+
+ /* The CFA is the SP. */
+ DW_CFA_val_offset, ULEB128_7 (4), ULEB128_7 (0),
+
+ /* Segment registers are call-saved if ever used at all. */
+ DW_CFA_same_value, ULEB128_7 (40), /* %es */
+ DW_CFA_same_value, ULEB128_7 (41), /* %cs */
+ DW_CFA_same_value, ULEB128_7 (42), /* %ss */
+ DW_CFA_same_value, ULEB128_7 (43), /* %ds */
+ DW_CFA_same_value, ULEB128_7 (44), /* %fs */
+ DW_CFA_same_value, ULEB128_7 (45), /* %gs */
+ };
+
+ abi_info->initial_instructions = abi_cfi;
+ abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
+ abi_info->data_alignment_factor = 4;
+
+ abi_info->return_address_register = 8; /* %eip */
+
+ return 0;
+}