backends: add core_note callback for RISC-V

Signed-off-by: Andreas Schwab <schwab@suse.de>

4 files changed, 68 insertions, 1 deletions

diff --git a/backends/ChangeLog b/backends/ChangeLog
index 05327600..bf31072e 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,9 @@
+2018-07-17  Andreas Schwab  <schwab@suse.de>
+
+	* Makefile.am (riscv_SRCS): Add riscv_corenote.c.
+	* riscv_corenote.c: New file.
+	* riscv_init.c (riscv_init): Hook core_note.
+
 2018-07-11  Andreas Schwab  <schwab@suse.de>
 
 	* Makefile.am (riscv_SRCS): Add riscv_initreg.c.
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 091b0783..803df809 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -132,7 +132,7 @@ libebl_bpf_pic_a_SOURCES = $(bpf_SRCS)
 am_libebl_bpf_pic_a_OBJECTS = $(bpf_SRCS:.c=.os)
 
 riscv_SRCS = riscv_init.c riscv_symbol.c riscv_cfi.c riscv_regs.c \
-	     riscv_initreg.c
+	     riscv_initreg.c riscv_corenote.c
 libebl_riscv_pic_a_SOURCES = $(riscv_SRCS)
 am_libebl_riscv_pic_a_OBJECTS = $(riscv_SRCS:.c=.os)
 
diff --git a/backends/riscv_corenote.c b/backends/riscv_corenote.c
new file mode 100644
index 00000000..37cce7e3
--- /dev/null
+++ b/backends/riscv_corenote.c
@@ -0,0 +1,60 @@
+/* RISC-V specific core note handling.
+   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	riscv_
+#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
+
+static const Ebl_Register_Location prstatus_regs[] =
+  {
+    { .offset = 1, .regno = 1, .count = 31, .bits = 64 } /* x1..x31 */
+  };
+#define PRSTATUS_REGS_SIZE	(32 * 8)
+
+#include "linux-core-note.c"
diff --git a/backends/riscv_init.c b/backends/riscv_init.c
index c74c6af5..8b7ce8b5 100644
--- a/backends/riscv_init.c
+++ b/backends/riscv_init.c
@@ -58,6 +58,7 @@ riscv_init (Elf *elf __attribute__ ((unused)),
   HOOK (eh, check_special_symbol);
   HOOK (eh, machine_flag_check);
   HOOK (eh, set_initial_registers_tid);
+  HOOK (eh, core_note);
 
   return MODVERSION;
 }