212 lines
5.9 KiB
C
212 lines
5.9 KiB
C
/* 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 */
|