1 files changed, 117 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/elf.h b/arch/m68k/include/asm/elf.h
new file mode 100644
index 000000000..3d387ceae
--- /dev/null
+++ b/arch/m68k/include/asm/elf.h
@@ -0,0 +1,117 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASMm68k_ELF_H
+#define __ASMm68k_ELF_H
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+/*
+ * 68k ELF relocation types
+ */
+#define R_68K_NONE	0
+#define R_68K_32	1
+#define R_68K_16	2
+#define R_68K_8		3
+#define R_68K_PC32	4
+#define R_68K_PC16	5
+#define R_68K_PC8	6
+#define R_68K_GOT32	7
+#define R_68K_GOT16	8
+#define R_68K_GOT8	9
+#define R_68K_GOT32O	10
+#define R_68K_GOT16O	11
+#define R_68K_GOT8O	12
+#define R_68K_PLT32	13
+#define R_68K_PLT16	14
+#define R_68K_PLT8	15
+#define R_68K_PLT32O	16
+#define R_68K_PLT16O	17
+#define R_68K_PLT8O	18
+#define R_68K_COPY	19
+#define R_68K_GLOB_DAT	20
+#define R_68K_JMP_SLOT	21
+#define R_68K_RELATIVE	22
+
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef struct user_m68kfp_struct 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_68K)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#define ELF_DATA	ELFDATA2MSB
+#define ELF_ARCH	EM_68K
+
+/* For SVR4/m68k the function pointer to be registered with `atexit' is
+   passed in %a1.  Although my copy of the ABI has no such statement, it
+   is actually used on ASV.  */
+#define ELF_PLAT_INIT(_r, load_addr)	_r->a1 = 0
+
+#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
+#define ELF_EXEC_PAGESIZE	8192
+#else
+#define ELF_EXEC_PAGESIZE	4096
+#endif
+
+/* 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.  */
+
+#ifndef CONFIG_SUN3
+#define ELF_ET_DYN_BASE         0xD0000000UL
+#else
+#define ELF_ET_DYN_BASE         0x0D800000UL
+#endif
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs)				\
+	/* Bleech. */							\
+	pr_reg[0] = regs->d1;						\
+	pr_reg[1] = regs->d2;						\
+	pr_reg[2] = regs->d3;						\
+	pr_reg[3] = regs->d4;						\
+	pr_reg[4] = regs->d5;						\
+	pr_reg[7] = regs->a0;						\
+	pr_reg[8] = regs->a1;						\
+	pr_reg[9] = regs->a2;						\
+	pr_reg[14] = regs->d0;						\
+	pr_reg[15] = rdusp();						\
+	pr_reg[16] = regs->orig_d0;					\
+	pr_reg[17] = regs->sr;						\
+	pr_reg[18] = regs->pc;						\
+	pr_reg[19] = (regs->format << 12) | regs->vector;		\
+	{								\
+	  struct switch_stack *sw = ((struct switch_stack *)regs) - 1;	\
+	  pr_reg[5] = sw->d6;						\
+	  pr_reg[6] = sw->d7;						\
+	  pr_reg[10] = sw->a3;						\
+	  pr_reg[11] = sw->a4;						\
+	  pr_reg[12] = sw->a5;						\
+	  pr_reg[13] = sw->a6;						\
+	}
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this cpu supports.  */
+
+#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.  */
+
+#define ELF_PLATFORM  (NULL)
+
+#endif