Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / arch / arm64 / include / asm / elf.h
diff --git a/kernel/arch/arm64/include/asm/elf.h b/kernel/arch/arm64/include/asm/elf.h
new file mode 100644 (file)
index 0000000..faad6df
--- /dev/null
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __ASM_ELF_H
+#define __ASM_ELF_H
+
+#include <asm/hwcap.h>
+
+/*
+ * ELF register definitions..
+ */
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof(struct user_pt_regs) / sizeof(elf_greg_t))
+#define ELF_CORE_COPY_REGS(dest, regs) \
+       *(struct user_pt_regs *)&(dest) = (regs)->user_regs;
+
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+typedef struct user_fpsimd_state elf_fpregset_t;
+
+/*
+ * AArch64 static relocation types.
+ */
+
+/* Miscellaneous. */
+#define R_ARM_NONE                     0
+#define R_AARCH64_NONE                 256
+
+/* Data. */
+#define R_AARCH64_ABS64                        257
+#define R_AARCH64_ABS32                        258
+#define R_AARCH64_ABS16                        259
+#define R_AARCH64_PREL64               260
+#define R_AARCH64_PREL32               261
+#define R_AARCH64_PREL16               262
+
+/* Instructions. */
+#define R_AARCH64_MOVW_UABS_G0         263
+#define R_AARCH64_MOVW_UABS_G0_NC      264
+#define R_AARCH64_MOVW_UABS_G1         265
+#define R_AARCH64_MOVW_UABS_G1_NC      266
+#define R_AARCH64_MOVW_UABS_G2         267
+#define R_AARCH64_MOVW_UABS_G2_NC      268
+#define R_AARCH64_MOVW_UABS_G3         269
+
+#define R_AARCH64_MOVW_SABS_G0         270
+#define R_AARCH64_MOVW_SABS_G1         271
+#define R_AARCH64_MOVW_SABS_G2         272
+
+#define R_AARCH64_LD_PREL_LO19         273
+#define R_AARCH64_ADR_PREL_LO21                274
+#define R_AARCH64_ADR_PREL_PG_HI21     275
+#define R_AARCH64_ADR_PREL_PG_HI21_NC  276
+#define R_AARCH64_ADD_ABS_LO12_NC      277
+#define R_AARCH64_LDST8_ABS_LO12_NC    278
+
+#define R_AARCH64_TSTBR14              279
+#define R_AARCH64_CONDBR19             280
+#define R_AARCH64_JUMP26               282
+#define R_AARCH64_CALL26               283
+#define R_AARCH64_LDST16_ABS_LO12_NC   284
+#define R_AARCH64_LDST32_ABS_LO12_NC   285
+#define R_AARCH64_LDST64_ABS_LO12_NC   286
+#define R_AARCH64_LDST128_ABS_LO12_NC  299
+
+#define R_AARCH64_MOVW_PREL_G0         287
+#define R_AARCH64_MOVW_PREL_G0_NC      288
+#define R_AARCH64_MOVW_PREL_G1         289
+#define R_AARCH64_MOVW_PREL_G1_NC      290
+#define R_AARCH64_MOVW_PREL_G2         291
+#define R_AARCH64_MOVW_PREL_G2_NC      292
+#define R_AARCH64_MOVW_PREL_G3         293
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS      ELFCLASS64
+#ifdef __AARCH64EB__
+#define ELF_DATA       ELFDATA2MSB
+#else
+#define ELF_DATA       ELFDATA2LSB
+#endif
+#define ELF_ARCH       EM_AARCH64
+
+/*
+ * 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_SIZE      16
+#ifdef __AARCH64EB__
+#define ELF_PLATFORM           ("aarch64_be")
+#else
+#define ELF_PLATFORM           ("aarch64")
+#endif
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x)              ((x)->e_machine == EM_AARCH64)
+
+#define elf_read_implies_exec(ex,stk)  (stk != EXSTACK_DISABLE_X)
+
+#define CORE_DUMP_USE_REGSET
+#define ELF_EXEC_PAGESIZE      PAGE_SIZE
+
+/*
+ * 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        (2 * TASK_SIZE_64 / 3)
+
+/*
+ * When the program starts, a1 contains a pointer to a function to be
+ * registered with atexit, as per the SVR4 ABI.  A value of 0 means we have no
+ * such handler.
+ */
+#define ELF_PLAT_INIT(_r, load_addr)   (_r)->regs[0] = 0
+
+#define SET_PERSONALITY(ex)            clear_thread_flag(TIF_32BIT);
+
+#define ARCH_DLINFO                                                    \
+do {                                                                   \
+       NEW_AUX_ENT(AT_SYSINFO_EHDR,                                    \
+                   (elf_addr_t)current->mm->context.vdso);             \
+} while (0)
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+                                      int uses_interp);
+
+/* 1GB of VA */
+#ifdef CONFIG_COMPAT
+#define STACK_RND_MASK                 (test_thread_flag(TIF_32BIT) ? \
+                                               0x7ff >> (PAGE_SHIFT - 12) : \
+                                               0x3ffff >> (PAGE_SHIFT - 12))
+#else
+#define STACK_RND_MASK                 (0x3ffff >> (PAGE_SHIFT - 12))
+#endif
+
+#ifdef CONFIG_COMPAT
+
+#ifdef __AARCH64EB__
+#define COMPAT_ELF_PLATFORM            ("v8b")
+#else
+#define COMPAT_ELF_PLATFORM            ("v8l")
+#endif
+
+#define COMPAT_ELF_ET_DYN_BASE         (2 * TASK_SIZE_32 / 3)
+
+/* AArch32 registers. */
+#define COMPAT_ELF_NGREG               18
+typedef unsigned int                   compat_elf_greg_t;
+typedef compat_elf_greg_t              compat_elf_gregset_t[COMPAT_ELF_NGREG];
+
+/* AArch32 EABI. */
+#define EF_ARM_EABI_MASK               0xff000000
+#define compat_elf_check_arch(x)       (((x)->e_machine == EM_ARM) && \
+                                        ((x)->e_flags & EF_ARM_EABI_MASK))
+
+#define compat_start_thread            compat_start_thread
+#define COMPAT_SET_PERSONALITY(ex)     set_thread_flag(TIF_32BIT);
+#define COMPAT_ARCH_DLINFO
+extern int aarch32_setup_vectors_page(struct linux_binprm *bprm,
+                                     int uses_interp);
+#define compat_arch_setup_additional_pages \
+                                       aarch32_setup_vectors_page
+
+#endif /* CONFIG_COMPAT */
+
+#endif