1 files changed, 229 insertions, 0 deletions

diff --git a/arch/hexagon/include/asm/elf.h b/arch/hexagon/include/asm/elf.h
new file mode 100644
index 000000000000..37976a0d3650
--- /dev/null
+++ b/arch/hexagon/include/asm/elf.h
@@ -0,0 +1,229 @@
+/*
+ * ELF definitions for the Hexagon architecture
+ *
+ * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program 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 a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef __ASM_ELF_H
+#define __ASM_ELF_H
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+/*
+ * This should really be in linux/elf-em.h.
+ */
+#define EM_HEXAGON      164   /* QUALCOMM Hexagon */
+
+struct elf32_hdr;
+
+/*
+ * ELF header e_flags defines.
+ */
+
+/*  should have stuff like "CPU type" and maybe "ABI version", etc  */
+
+/* Hexagon relocations */
+  /* V2 */
+#define R_HEXAGON_NONE           0
+#define R_HEXAGON_B22_PCREL      1
+#define R_HEXAGON_B15_PCREL      2
+#define R_HEXAGON_B7_PCREL       3
+#define R_HEXAGON_LO16           4
+#define R_HEXAGON_HI16           5
+#define R_HEXAGON_32             6
+#define R_HEXAGON_16             7
+#define R_HEXAGON_8              8
+#define R_HEXAGON_GPREL16_0      9
+#define R_HEXAGON_GPREL16_1     10
+#define R_HEXAGON_GPREL16_2     11
+#define R_HEXAGON_GPREL16_3     12
+#define R_HEXAGON_HL16          13
+  /* V3 */
+#define R_HEXAGON_B13_PCREL     14
+  /* V4 */
+#define R_HEXAGON_B9_PCREL      15
+  /* V4 (extenders) */
+#define R_HEXAGON_B32_PCREL_X   16
+#define R_HEXAGON_32_6_X        17
+  /* V4 (extended) */
+#define R_HEXAGON_B22_PCREL_X   18
+#define R_HEXAGON_B15_PCREL_X   19
+#define R_HEXAGON_B13_PCREL_X   20
+#define R_HEXAGON_B9_PCREL_X    21
+#define R_HEXAGON_B7_PCREL_X    22
+#define R_HEXAGON_16_X          23
+#define R_HEXAGON_12_X          24
+#define R_HEXAGON_11_X          25
+#define R_HEXAGON_10_X          26
+#define R_HEXAGON_9_X           27
+#define R_HEXAGON_8_X           28
+#define R_HEXAGON_7_X           29
+#define R_HEXAGON_6_X           30
+  /* V2 PIC */
+#define R_HEXAGON_32_PCREL      31
+#define R_HEXAGON_COPY          32
+#define R_HEXAGON_GLOB_DAT      33
+#define R_HEXAGON_JMP_SLOT      34
+#define R_HEXAGON_RELATIVE      35
+#define R_HEXAGON_PLT_B22_PCREL 36
+#define R_HEXAGON_GOTOFF_LO16   37
+#define R_HEXAGON_GOTOFF_HI16   38
+#define R_HEXAGON_GOTOFF_32     39
+#define R_HEXAGON_GOT_LO16      40
+#define R_HEXAGON_GOT_HI16      41
+#define R_HEXAGON_GOT_32        42
+#define R_HEXAGON_GOT_16        43
+
+/*
+ * ELF register definitions..
+ */
+typedef unsigned long elf_greg_t;
+
+typedef struct user_regs_struct elf_gregset_t;
+#define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long))
+
+/*  Placeholder  */
+typedef unsigned long elf_fpregset_t;
+
+/*
+ * Bypass the whole "regsets" thing for now and use the define.
+ */
+
+#define ELF_CORE_COPY_REGS(DEST, REGS)  \
+do {                                    \
+        DEST.r0 = REGS->r00;            \
+        DEST.r1 = REGS->r01;            \
+        DEST.r2 = REGS->r02;            \
+        DEST.r3 = REGS->r03;            \
+        DEST.r4 = REGS->r04;            \
+        DEST.r5 = REGS->r05;            \
+        DEST.r6 = REGS->r06;            \
+        DEST.r7 = REGS->r07;            \
+        DEST.r8 = REGS->r08;            \
+        DEST.r9 = REGS->r09;            \
+        DEST.r10 = REGS->r10;           \
+        DEST.r11 = REGS->r11;           \
+        DEST.r12 = REGS->r12;           \
+        DEST.r13 = REGS->r13;           \
+        DEST.r14 = REGS->r14;           \
+        DEST.r15 = REGS->r15;           \
+        DEST.r16 = REGS->r16;           \
+        DEST.r17 = REGS->r17;           \
+        DEST.r18 = REGS->r18;           \
+        DEST.r19 = REGS->r19;           \
+        DEST.r20 = REGS->r20;           \
+        DEST.r21 = REGS->r21;           \
+        DEST.r22 = REGS->r22;           \
+        DEST.r23 = REGS->r23;           \
+        DEST.r24 = REGS->r24;           \
+        DEST.r25 = REGS->r25;           \
+        DEST.r26 = REGS->r26;           \
+        DEST.r27 = REGS->r27;           \
+        DEST.r28 = REGS->r28;           \
+        DEST.r29 = pt_psp(REGS);        \
+        DEST.r30 = REGS->r30;           \
+        DEST.r31 = REGS->r31;           \
+        DEST.sa0 = REGS->sa0;           \
+        DEST.lc0 = REGS->lc0;           \
+        DEST.sa1 = REGS->sa1;           \
+        DEST.lc1 = REGS->lc1;           \
+        DEST.m0 = REGS->m0;             \
+        DEST.m1 = REGS->m1;             \
+        DEST.usr = REGS->usr;           \
+        DEST.p3_0 = REGS->preds;        \
+        DEST.gp = REGS->gp;             \
+        DEST.ugp = REGS->ugp;           \
+        DEST.pc = pt_elr(REGS); \
+        DEST.cause = pt_cause(REGS);    \
+        DEST.badva = pt_badva(REGS);    \
+} while (0);
+
+
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ * Checks the machine and ABI type.
+ */
+#define elf_check_arch(hdr)     ((hdr)->e_machine == EM_HEXAGON)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS32
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_HEXAGON
+
+#ifdef CONFIG_HEXAGON_ARCH_V2
+#define ELF_CORE_EFLAGS 0x1
+#endif
+
+#ifdef CONFIG_HEXAGON_ARCH_V3
+#define ELF_CORE_EFLAGS 0x2
+#endif
+
+#ifdef CONFIG_HEXAGON_ARCH_V4
+#define ELF_CORE_EFLAGS 0x3
+#endif
+
+/*
+ * Some architectures have ld.so set up a pointer to a function
+ * to be registered using atexit, to facilitate cleanup.  So that
+ * static executables will be well-behaved, we would null the register
+ * in question here, in the pt_regs structure passed.  For now,
+ * leave it a null macro.
+ */
+#define ELF_PLAT_INIT(regs, load_addr) do { } while (0)
+
+#define USE_ELF_CORE_DUMP
+#define CORE_DUMP_USE_REGSET
+
+/* Hrm is this going to cause problems for changing PAGE_SIZE?  */
+#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.
+ */
+#define ELF_ET_DYN_BASE         0x08000000UL
+
+/*
+ * 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)
+
+#ifdef __KERNEL__
+#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+#endif
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+                                       int uses_interp);
+
+
+#endif