diff options
author | Paul Mundt <lethal@linux-sh.org> | 2008-07-29 08:09:44 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-07-29 08:09:44 +0900 |
commit | f15cbe6f1a4b4d9df59142fc8e4abb973302cf44 (patch) | |
tree | 774d7b11abaaf33561ab8268bf51ddd9ceb79025 /arch/sh/include/asm/elf.h | |
parent | 25326277d8d1393d1c66240e6255aca780f9e3eb (diff) |
sh: migrate to arch/sh/include/
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.
Most of the moving about was done with Sam's directions at:
http://marc.info/?l=linux-sh&m=121724823706062&w=2
with subsequent hacking and fixups entirely my fault.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/elf.h')
-rw-r--r-- | arch/sh/include/asm/elf.h | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h new file mode 100644 index 00000000000..f01449a8d37 --- /dev/null +++ b/arch/sh/include/asm/elf.h @@ -0,0 +1,244 @@ +#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 70 +#define R_SH_GOTOFF20 71 +#define R_SH_GOTFUNCDESC 72 +#define R_SH_GOTFUNCDESC20 73 +#define R_SH_GOTOFFFUNCDESC 74 +#define R_SH_GOTOFFFUNCDESC20 75 +#define R_SH_FUNCDESC 76 +#define R_SH_FUNCDESC_VALUE 77 + +#if 0 /* XXX - later .. */ +#define R_SH_GOT20 198 +#define R_SH_GOTOFF20 199 +#define R_SH_GOTFUNCDESC 200 +#define R_SH_GOTFUNCDESC20 201 +#define R_SH_GOTOFFFUNCDESC 202 +#define R_SH_GOTOFFFUNCDESC20 203 +#define R_SH_FUNCDESC 204 +#define R_SH_FUNCDESC_VALUE 205 +#endif + +/* 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 + +#ifdef __KERNEL__ +/* + * 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) + +#define USE_ELF_CORE_DUMP +#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) + +#ifdef __SH5__ +#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->regs[15]=0; \ + _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \ + _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \ + _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \ + _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \ + _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \ + _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \ + _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \ + _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \ + _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \ + _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \ + _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \ + _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \ + _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \ + _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \ + _r->sr = SR_FD | SR_MMU; } while (0) +#else +#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) +#endif + +#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT) +struct task_struct; +extern int dump_task_regs (struct task_struct *, elf_gregset_t *); +extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *); + +#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs) +#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs) + +#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 executable_stack); + +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 +#define VSYSCALL_AUX_ENT +#endif /* CONFIG_VSYSCALL */ + +#ifdef CONFIG_SH_FPU +#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT) +#else +#define FPU_AUX_ENT +#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 /* __KERNEL__ */ +#endif /* __ASM_SH_ELF_H */ |