summaryrefslogtreecommitdiffstats
path: root/arch/openrisc/include/asm/elf.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/openrisc/include/asm/elf.h')
-rw-r--r--arch/openrisc/include/asm/elf.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/elf.h b/arch/openrisc/include/asm/elf.h
new file mode 100644
index 000000000..f2dc5364e
--- /dev/null
+++ b/arch/openrisc/include/asm/elf.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * OpenRISC Linux
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others. All original copyrights apply as per the original source
+ * declaration.
+ *
+ * OpenRISC implementation:
+ * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ * et al.
+ */
+#ifndef __ASM_OPENRISC_ELF_H
+#define __ASM_OPENRISC_ELF_H
+
+
+#include <linux/types.h>
+#include <uapi/asm/elf.h>
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+
+#define elf_check_arch(x) \
+ (((x)->e_machine == EM_OR32) || ((x)->e_machine == EM_OPENRISC))
+
+/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
+ use of this is to invoke "./ld.so someprog" to test out a new version of
+ the loader. We need to make sure that it is out of the way of the program
+ that it will "exec", and that there is sufficient room for the brk. */
+
+#define ELF_ET_DYN_BASE (0x08000000)
+
+/*
+ * Enable dump using regset.
+ * This covers all of general/DSP/FPU regs.
+ */
+#define CORE_DUMP_USE_REGSET
+
+#define ELF_EXEC_PAGESIZE 8192
+
+extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt);
+#define ELF_CORE_COPY_REGS(dest, regs) dump_elf_thread(dest, regs);
+
+/* This yields a mask that user programs can use to figure out what
+ instruction set this cpu supports. This could be done in userspace,
+ but it's not easy, and we've already done it here. */
+
+#define ELF_HWCAP (0)
+
+/* This yields a string that ld.so will use to load implementation
+ specific libraries for optimization. This is more specific in
+ intent than poking at uname or /proc/cpuinfo.
+
+ For the moment, we have only optimizations for the Intel generations,
+ but that could change... */
+
+#define ELF_PLATFORM (NULL)
+
+#endif