1 files changed, 147 insertions, 0 deletions

diff --git a/arch/mn10300/include/asm/elf.h b/arch/mn10300/include/asm/elf.h
new file mode 100644
index 000000000000..bf09f8bb392e
--- /dev/null
+++ b/arch/mn10300/include/asm/elf.h
@@ -0,0 +1,147 @@
+/* MN10300 ELF constant and register definitions
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_ELF_H
+#define _ASM_ELF_H
+
+#include <linux/utsname.h>
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+/*
+ * AM33 relocations
+ */
+#define R_MN10300_NONE          0       /* No reloc.  */
+#define R_MN10300_32            1       /* Direct 32 bit.  */
+#define R_MN10300_16            2       /* Direct 16 bit.  */
+#define R_MN10300_8             3       /* Direct 8 bit.  */
+#define R_MN10300_PCREL32       4       /* PC-relative 32-bit.  */
+#define R_MN10300_PCREL16       5       /* PC-relative 16-bit signed.  */
+#define R_MN10300_PCREL8        6       /* PC-relative 8-bit signed.  */
+#define R_MN10300_24            9       /* Direct 24 bit.  */
+#define R_MN10300_RELATIVE      23      /* Adjust by program base.  */
+
+/*
+ * ELF register definitions..
+ */
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#define ELF_NFPREG 32
+typedef float elf_fpreg_t;
+
+typedef struct {
+        elf_fpreg_t     fpregs[ELF_NFPREG];
+        u_int32_t       fpcr;
+} elf_fpregset_t;
+
+extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture
+ */
+#define elf_check_arch(x) \
+        (((x)->e_machine == EM_CYGNUS_MN10300) ||       \
+         ((x)->e_machine == EM_MN10300))
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS32
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_MN10300
+
+/*
+ * ELF process initialiser
+ */
+#define ELF_PLAT_INIT(_r, load_addr)                                    \
+do {                                                                    \
+        struct pt_regs *_ur = current->thread.uregs;                    \
+        _ur->a3   = 0;  _ur->a2   = 0;  _ur->d3   = 0;  _ur->d2   = 0;  \
+        _ur->mcvf = 0;  _ur->mcrl = 0;  _ur->mcrh = 0;  _ur->mdrq = 0;  \
+        _ur->e1   = 0;  _ur->e0   = 0;  _ur->e7   = 0;  _ur->e6   = 0;  \
+        _ur->e5   = 0;  _ur->e4   = 0;  _ur->e3   = 0;  _ur->e2   = 0;  \
+        _ur->lar  = 0;  _ur->lir  = 0;  _ur->mdr  = 0;                  \
+        _ur->a1   = 0;  _ur->a0   = 0;  _ur->d1   = 0;  _ur->d0   = 0;  \
+} while (0)
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+/*
+ * 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.
+ * - must clear the VMALLOC area
+ */
+#define ELF_ET_DYN_BASE         0x04000000
+
+/*
+ * regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+ * now struct user_regs, they are different)
+ * - ELF_CORE_COPY_REGS has been guessed, and may be wrong
+ */
+#define ELF_CORE_COPY_REGS(pr_reg, regs)        \
+do {                                            \
+        pr_reg[0]       = regs->a3;             \
+        pr_reg[1]       = regs->a2;             \
+        pr_reg[2]       = regs->d3;             \
+        pr_reg[3]       = regs->d2;             \
+        pr_reg[4]       = regs->mcvf;           \
+        pr_reg[5]       = regs->mcrl;           \
+        pr_reg[6]       = regs->mcrh;           \
+        pr_reg[7]       = regs->mdrq;           \
+        pr_reg[8]       = regs->e1;             \
+        pr_reg[9]       = regs->e0;             \
+        pr_reg[10]      = regs->e7;             \
+        pr_reg[11]      = regs->e6;             \
+        pr_reg[12]      = regs->e5;             \
+        pr_reg[13]      = regs->e4;             \
+        pr_reg[14]      = regs->e3;             \
+        pr_reg[15]      = regs->e2;             \
+        pr_reg[16]      = regs->sp;             \
+        pr_reg[17]      = regs->lar;            \
+        pr_reg[18]      = regs->lir;            \
+        pr_reg[19]      = regs->mdr;            \
+        pr_reg[20]      = regs->a1;             \
+        pr_reg[21]      = regs->a0;             \
+        pr_reg[22]      = regs->d1;             \
+        pr_reg[23]      = regs->d0;             \
+        pr_reg[24]      = regs->orig_d0;        \
+        pr_reg[25]      = regs->epsw;           \
+        pr_reg[26]      = regs->pc;             \
+} while (0);
+
+/*
+ * This yields a mask that user programs can use to figure out what
+ * instruction set this CPU supports.  This could be done in user space,
+ * 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)
+
+#ifdef __KERNEL__
+#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+#endif
+
+#endif /* _ASM_ELF_H */