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_corenote.c b/backends/aarch64_corenote.c
new file mode 100644
index 0000000..905a4b8
--- /dev/null
+++ b/backends/aarch64_corenote.c
@@ -0,0 +1,172 @@
+/* AArch64 specific core note handling.
+ Copyright (C) 2013 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 <elf.h>
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <sys/time.h>
+
+#define BACKEND aarch64_
+#include "libebl_CPU.h"
+
+#define ULONG uint64_t
+#define PID_T int32_t
+#define UID_T uint32_t
+#define GID_T uint32_t
+#define ALIGN_ULONG 8
+#define ALIGN_PID_T 4
+#define ALIGN_UID_T 4
+#define ALIGN_GID_T 4
+#define TYPE_ULONG ELF_T_XWORD
+#define TYPE_PID_T ELF_T_SWORD
+#define TYPE_UID_T ELF_T_WORD
+#define TYPE_GID_T ELF_T_WORD
+
+#define PRSTATUS_REGS_SIZE (34 * 8)
+
+static const Ebl_Register_Location prstatus_regs[] =
+ {
+ { .offset = 0, .regno = 0, .count = 32, .bits = 64 }, /* x0..x30, sp */
+ };
+
+#define PRSTATUS_REGSET_ITEMS \
+ { \
+ .name = "pc", .type = ELF_T_XWORD, .format = 'x', \
+ .offset = (offsetof (struct EBLHOOK(prstatus), pr_reg) \
+ + PRSTATUS_REGS_SIZE - 16), \
+ .group = "register", \
+ .pc_register = true \
+ }, \
+ { \
+ .name = "pstate", .type = ELF_T_XWORD, .format = 'x', \
+ .offset = (offsetof (struct EBLHOOK(prstatus), pr_reg) \
+ + PRSTATUS_REGS_SIZE - 8), \
+ .group = "register" \
+ }
+
+static const Ebl_Register_Location aarch64_fpregset_regs[] =
+ {
+ { .offset = 0, .regno = 64, .count = 32, .bits = 128 }, /* v0..v31 */
+ };
+
+static const Ebl_Core_Item aarch64_fpregset_items[] =
+ {
+ {
+ .name = "fpsr", .type = ELF_T_WORD, .format = 'x',
+ .offset = 512, .group = "register"
+ },
+ {
+ .name = "fpcr", .type = ELF_T_WORD, .format = 'x',
+ .offset = 516, .group = "register"
+ }
+ };
+
+static const Ebl_Core_Item aarch64_tls_items[] =
+ {
+ {
+ .name = "tls", .type = ELF_T_XWORD, .format = 'x',
+ .offset = 0, .group = "register"
+ }
+ };
+
+static const Ebl_Core_Item aarch64_syscall_items [] =
+ {
+ {
+ .name = "syscall", .type = ELF_T_WORD, .format = 'x',
+ .offset = 0, .group = "register"
+ }
+ };
+
+#define AARCH64_HWBP_REG(KIND, N) \
+ { \
+ .name = "DBG" KIND "VR" #N "_EL1", .type = ELF_T_XWORD, .format = 'x', \
+ .offset = 8 + N * 16, .group = "register" \
+ }, \
+ { \
+ .name = "DBG" KIND "CR" #N "_EL1", .type = ELF_T_WORD, .format = 'x', \
+ .offset = 16 + N * 16, .group = "register" \
+ }
+
+#define AARCH64_BP_WP_GROUP(KIND, NAME) \
+ static const Ebl_Core_Item NAME[] = \
+ { \
+ { \
+ .name = "dbg_info", .type = ELF_T_WORD, .format = 'x', \
+ .offset = 0, .group = "control" \
+ }, \
+ /* N.B.: 4 bytes of padding here. */ \
+ \
+ AARCH64_HWBP_REG(KIND, 0), \
+ AARCH64_HWBP_REG(KIND, 1), \
+ AARCH64_HWBP_REG(KIND, 2), \
+ AARCH64_HWBP_REG(KIND, 3), \
+ AARCH64_HWBP_REG(KIND, 4), \
+ AARCH64_HWBP_REG(KIND, 5), \
+ AARCH64_HWBP_REG(KIND, 6), \
+ AARCH64_HWBP_REG(KIND, 7), \
+ AARCH64_HWBP_REG(KIND, 8), \
+ AARCH64_HWBP_REG(KIND, 9), \
+ AARCH64_HWBP_REG(KIND, 10), \
+ AARCH64_HWBP_REG(KIND, 11), \
+ AARCH64_HWBP_REG(KIND, 12), \
+ AARCH64_HWBP_REG(KIND, 13), \
+ AARCH64_HWBP_REG(KIND, 14), \
+ AARCH64_HWBP_REG(KIND, 15), \
+ \
+ /* The DBGBVR+DBGBCR pair only takes 12 bytes. There are 4 bytes \
+ of padding at the end of each pair. The item formatter in \
+ readelf can skip those, but the missing 4 bytes at the end of \
+ the whole block cause it to assume the whole item bunch \
+ repeats, so it loops around to read more. Insert an explicit \
+ (but invisible) padding word. */ \
+ { \
+ .name = "", .type = ELF_T_WORD, .format = 'h', \
+ .offset = 260, .group = "register" \
+ } \
+ }
+
+AARCH64_BP_WP_GROUP ("B", aarch64_hw_bp_items);
+AARCH64_BP_WP_GROUP ("W", aarch64_hw_wp_items);
+
+#undef AARCH64_BP_WP_GROUP
+#undef AARCH64_HWBP_REG
+
+#define EXTRA_NOTES \
+ EXTRA_REGSET_ITEMS (NT_FPREGSET, 528, \
+ aarch64_fpregset_regs, aarch64_fpregset_items) \
+ EXTRA_ITEMS (NT_ARM_TLS, 8, aarch64_tls_items) \
+ EXTRA_ITEMS (NT_ARM_HW_BREAK, 264, aarch64_hw_bp_items) \
+ EXTRA_ITEMS (NT_ARM_HW_WATCH, 264, aarch64_hw_wp_items) \
+ EXTRA_ITEMS (NT_ARM_SYSTEM_CALL, 4, aarch64_syscall_items)
+
+#include "linux-core-note.c"