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-rw-r--r--arch/sh/include/asm/elf.h211
1 files changed, 211 insertions, 0 deletions
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h
new file mode 100644
index 000000000..2862d6d1c
--- /dev/null
+++ b/arch/sh/include/asm/elf.h
@@ -0,0 +1,211 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SH_ELF_H
+#define __ASM_SH_ELF_H
+
+#include <linux/utsname.h>
+#include <asm/auxvec.h>
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+/* ELF header e_flags defines */
+#define EF_SH_PIC 0x100 /* -fpic */
+#define EF_SH_FDPIC 0x8000 /* -mfdpic */
+
+/* SH (particularly SHcompact) relocation types */
+#define R_SH_NONE 0
+#define R_SH_DIR32 1
+#define R_SH_REL32 2
+#define R_SH_DIR8WPN 3
+#define R_SH_IND12W 4
+#define R_SH_DIR8WPL 5
+#define R_SH_DIR8WPZ 6
+#define R_SH_DIR8BP 7
+#define R_SH_DIR8W 8
+#define R_SH_DIR8L 9
+#define R_SH_SWITCH16 25
+#define R_SH_SWITCH32 26
+#define R_SH_USES 27
+#define R_SH_COUNT 28
+#define R_SH_ALIGN 29
+#define R_SH_CODE 30
+#define R_SH_DATA 31
+#define R_SH_LABEL 32
+#define R_SH_SWITCH8 33
+#define R_SH_GNU_VTINHERIT 34
+#define R_SH_GNU_VTENTRY 35
+#define R_SH_TLS_GD_32 144
+#define R_SH_TLS_LD_32 145
+#define R_SH_TLS_LDO_32 146
+#define R_SH_TLS_IE_32 147
+#define R_SH_TLS_LE_32 148
+#define R_SH_TLS_DTPMOD32 149
+#define R_SH_TLS_DTPOFF32 150
+#define R_SH_TLS_TPOFF32 151
+#define R_SH_GOT32 160
+#define R_SH_PLT32 161
+#define R_SH_COPY 162
+#define R_SH_GLOB_DAT 163
+#define R_SH_JMP_SLOT 164
+#define R_SH_RELATIVE 165
+#define R_SH_GOTOFF 166
+#define R_SH_GOTPC 167
+
+/* FDPIC relocs */
+#define R_SH_GOT20 201
+#define R_SH_GOTOFF20 202
+#define R_SH_GOTFUNCDESC 203
+#define R_SH_GOTFUNCDESC20 204
+#define R_SH_GOTOFFFUNCDESC 205
+#define R_SH_GOTOFFFUNCDESC20 206
+#define R_SH_FUNCDESC 207
+#define R_SH_FUNCDESC_VALUE 208
+
+/* SHmedia relocs */
+#define R_SH_IMM_LOW16 246
+#define R_SH_IMM_LOW16_PCREL 247
+#define R_SH_IMM_MEDLOW16 248
+#define R_SH_IMM_MEDLOW16_PCREL 249
+/* Keep this the last entry. */
+#define R_SH_NUM 256
+
+/*
+ * 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];
+
+typedef struct user_fpu_struct elf_fpregset_t;
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS ELFCLASS32
+#ifdef __LITTLE_ENDIAN__
+#define ELF_DATA ELFDATA2LSB
+#else
+#define ELF_DATA ELFDATA2MSB
+#endif
+#define ELF_ARCH EM_SH
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_SH)
+#define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC)
+#define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC)
+
+/*
+ * Enable dump using regset.
+ * This covers all of general/DSP/FPU regs.
+ */
+#define CORE_DUMP_USE_REGSET
+
+#define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC
+#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 / 3)
+
+#define ELF_CORE_COPY_REGS(_dest,_regs) \
+ memcpy((char *) &_dest, (char *) _regs, \
+ sizeof(struct pt_regs));
+
+/* 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 (boot_cpu_data.flags)
+
+/* 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 (utsname()->machine)
+
+#define ELF_PLAT_INIT(_r, load_addr) \
+ do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
+ _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
+ _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
+ _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
+ _r->sr = SR_FD; } while (0)
+
+#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \
+ _dynamic_addr) \
+do { \
+ _r->regs[0] = 0; \
+ _r->regs[1] = 0; \
+ _r->regs[2] = 0; \
+ _r->regs[3] = 0; \
+ _r->regs[4] = 0; \
+ _r->regs[5] = 0; \
+ _r->regs[6] = 0; \
+ _r->regs[7] = 0; \
+ _r->regs[8] = _exec_map_addr; \
+ _r->regs[9] = _interp_map_addr; \
+ _r->regs[10] = _dynamic_addr; \
+ _r->regs[11] = 0; \
+ _r->regs[12] = 0; \
+ _r->regs[13] = 0; \
+ _r->regs[14] = 0; \
+ _r->sr = SR_FD; \
+} while (0)
+
+#define SET_PERSONALITY(ex) \
+ set_personality(PER_LINUX_32BIT | (current->personality & (~PER_MASK)))
+
+#ifdef CONFIG_VSYSCALL
+/* vDSO has arch_setup_additional_pages */
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+ int uses_interp);
+
+extern unsigned int vdso_enabled;
+extern void __kernel_vsyscall;
+
+#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
+#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
+
+#define VSYSCALL_AUX_ENT \
+ if (vdso_enabled) \
+ NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \
+ else \
+ NEW_AUX_ENT(AT_IGNORE, 0)
+#else
+#define VSYSCALL_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
+#endif /* CONFIG_VSYSCALL */
+
+#ifdef CONFIG_SH_FPU
+#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
+#else
+#define FPU_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
+#endif
+
+extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
+
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
+#define ARCH_DLINFO \
+do { \
+ /* Optional FPU initialization */ \
+ FPU_AUX_ENT; \
+ \
+ /* Optional vsyscall entry */ \
+ VSYSCALL_AUX_ENT; \
+ \
+ /* Cache desc */ \
+ NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
+ NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
+ NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
+} while (0)
+
+#endif /* __ASM_SH_ELF_H */
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