|  | /* | 
|  | * This file is subject to the terms and conditions of the GNU General Public | 
|  | * License.  See the file "COPYING" in the main directory of this archive | 
|  | * for more details. | 
|  | * | 
|  | * Much of this is taken from binutils and GNU libc ... | 
|  | */ | 
|  | #ifndef _ASM_ELF_H | 
|  | #define _ASM_ELF_H | 
|  |  | 
|  |  | 
|  | /* ELF header e_flags defines. */ | 
|  | /* MIPS architecture level. */ | 
|  | #define EF_MIPS_ARCH_1		0x00000000	/* -mips1 code.  */ | 
|  | #define EF_MIPS_ARCH_2		0x10000000	/* -mips2 code.  */ | 
|  | #define EF_MIPS_ARCH_3		0x20000000	/* -mips3 code.  */ | 
|  | #define EF_MIPS_ARCH_4		0x30000000	/* -mips4 code.  */ | 
|  | #define EF_MIPS_ARCH_5		0x40000000	/* -mips5 code.  */ | 
|  | #define EF_MIPS_ARCH_32		0x50000000	/* MIPS32 code.  */ | 
|  | #define EF_MIPS_ARCH_64		0x60000000	/* MIPS64 code.  */ | 
|  | #define EF_MIPS_ARCH_32R2	0x70000000	/* MIPS32 R2 code.  */ | 
|  | #define EF_MIPS_ARCH_64R2	0x80000000	/* MIPS64 R2 code.  */ | 
|  |  | 
|  | /* The ABI of a file. */ | 
|  | #define EF_MIPS_ABI_O32		0x00001000	/* O32 ABI.  */ | 
|  | #define EF_MIPS_ABI_O64		0x00002000	/* O32 extended for 64 bit.  */ | 
|  |  | 
|  | #define PT_MIPS_REGINFO		0x70000000 | 
|  | #define PT_MIPS_RTPROC		0x70000001 | 
|  | #define PT_MIPS_OPTIONS		0x70000002 | 
|  |  | 
|  | /* Flags in the e_flags field of the header */ | 
|  | #define EF_MIPS_NOREORDER	0x00000001 | 
|  | #define EF_MIPS_PIC		0x00000002 | 
|  | #define EF_MIPS_CPIC		0x00000004 | 
|  | #define EF_MIPS_ABI2		0x00000020 | 
|  | #define EF_MIPS_OPTIONS_FIRST	0x00000080 | 
|  | #define EF_MIPS_32BITMODE	0x00000100 | 
|  | #define EF_MIPS_ABI		0x0000f000 | 
|  | #define EF_MIPS_ARCH		0xf0000000 | 
|  |  | 
|  | #define DT_MIPS_RLD_VERSION	0x70000001 | 
|  | #define DT_MIPS_TIME_STAMP	0x70000002 | 
|  | #define DT_MIPS_ICHECKSUM	0x70000003 | 
|  | #define DT_MIPS_IVERSION	0x70000004 | 
|  | #define DT_MIPS_FLAGS		0x70000005 | 
|  | #define RHF_NONE	0x00000000 | 
|  | #define RHF_HARDWAY	0x00000001 | 
|  | #define RHF_NOTPOT	0x00000002 | 
|  | #define RHF_SGI_ONLY	0x00000010 | 
|  | #define DT_MIPS_BASE_ADDRESS	0x70000006 | 
|  | #define DT_MIPS_CONFLICT	0x70000008 | 
|  | #define DT_MIPS_LIBLIST		0x70000009 | 
|  | #define DT_MIPS_LOCAL_GOTNO	0x7000000a | 
|  | #define DT_MIPS_CONFLICTNO	0x7000000b | 
|  | #define DT_MIPS_LIBLISTNO	0x70000010 | 
|  | #define DT_MIPS_SYMTABNO	0x70000011 | 
|  | #define DT_MIPS_UNREFEXTNO	0x70000012 | 
|  | #define DT_MIPS_GOTSYM		0x70000013 | 
|  | #define DT_MIPS_HIPAGENO	0x70000014 | 
|  | #define DT_MIPS_RLD_MAP		0x70000016 | 
|  |  | 
|  | #define R_MIPS_NONE		0 | 
|  | #define R_MIPS_16		1 | 
|  | #define R_MIPS_32		2 | 
|  | #define R_MIPS_REL32		3 | 
|  | #define R_MIPS_26		4 | 
|  | #define R_MIPS_HI16		5 | 
|  | #define R_MIPS_LO16		6 | 
|  | #define R_MIPS_GPREL16		7 | 
|  | #define R_MIPS_LITERAL		8 | 
|  | #define R_MIPS_GOT16		9 | 
|  | #define R_MIPS_PC16		10 | 
|  | #define R_MIPS_CALL16		11 | 
|  | #define R_MIPS_GPREL32		12 | 
|  | /* The remaining relocs are defined on Irix, although they are not | 
|  | in the MIPS ELF ABI.  */ | 
|  | #define R_MIPS_UNUSED1		13 | 
|  | #define R_MIPS_UNUSED2		14 | 
|  | #define R_MIPS_UNUSED3		15 | 
|  | #define R_MIPS_SHIFT5		16 | 
|  | #define R_MIPS_SHIFT6		17 | 
|  | #define R_MIPS_64		18 | 
|  | #define R_MIPS_GOT_DISP		19 | 
|  | #define R_MIPS_GOT_PAGE		20 | 
|  | #define R_MIPS_GOT_OFST		21 | 
|  | /* | 
|  | * The following two relocation types are specified in the MIPS ABI | 
|  | * conformance guide version 1.2 but not yet in the psABI. | 
|  | */ | 
|  | #define R_MIPS_GOTHI16		22 | 
|  | #define R_MIPS_GOTLO16		23 | 
|  | #define R_MIPS_SUB		24 | 
|  | #define R_MIPS_INSERT_A		25 | 
|  | #define R_MIPS_INSERT_B		26 | 
|  | #define R_MIPS_DELETE		27 | 
|  | #define R_MIPS_HIGHER		28 | 
|  | #define R_MIPS_HIGHEST		29 | 
|  | /* | 
|  | * The following two relocation types are specified in the MIPS ABI | 
|  | * conformance guide version 1.2 but not yet in the psABI. | 
|  | */ | 
|  | #define R_MIPS_CALLHI16		30 | 
|  | #define R_MIPS_CALLLO16		31 | 
|  | /* | 
|  | * This range is reserved for vendor specific relocations. | 
|  | */ | 
|  | #define R_MIPS_LOVENDOR		100 | 
|  | #define R_MIPS_HIVENDOR		127 | 
|  |  | 
|  | #define SHN_MIPS_ACCOMON	0xff00		/* Allocated common symbols */ | 
|  | #define SHN_MIPS_TEXT		0xff01		/* Allocated test symbols.  */ | 
|  | #define SHN_MIPS_DATA		0xff02		/* Allocated data symbols.  */ | 
|  | #define SHN_MIPS_SCOMMON	0xff03		/* Small common symbols */ | 
|  | #define SHN_MIPS_SUNDEFINED	0xff04		/* Small undefined symbols */ | 
|  |  | 
|  | #define SHT_MIPS_LIST		0x70000000 | 
|  | #define SHT_MIPS_CONFLICT	0x70000002 | 
|  | #define SHT_MIPS_GPTAB		0x70000003 | 
|  | #define SHT_MIPS_UCODE		0x70000004 | 
|  | #define SHT_MIPS_DEBUG		0x70000005 | 
|  | #define SHT_MIPS_REGINFO	0x70000006 | 
|  | #define SHT_MIPS_PACKAGE	0x70000007 | 
|  | #define SHT_MIPS_PACKSYM	0x70000008 | 
|  | #define SHT_MIPS_RELD		0x70000009 | 
|  | #define SHT_MIPS_IFACE		0x7000000b | 
|  | #define SHT_MIPS_CONTENT	0x7000000c | 
|  | #define SHT_MIPS_OPTIONS	0x7000000d | 
|  | #define SHT_MIPS_SHDR		0x70000010 | 
|  | #define SHT_MIPS_FDESC		0x70000011 | 
|  | #define SHT_MIPS_EXTSYM		0x70000012 | 
|  | #define SHT_MIPS_DENSE		0x70000013 | 
|  | #define SHT_MIPS_PDESC		0x70000014 | 
|  | #define SHT_MIPS_LOCSYM		0x70000015 | 
|  | #define SHT_MIPS_AUXSYM		0x70000016 | 
|  | #define SHT_MIPS_OPTSYM		0x70000017 | 
|  | #define SHT_MIPS_LOCSTR		0x70000018 | 
|  | #define SHT_MIPS_LINE		0x70000019 | 
|  | #define SHT_MIPS_RFDESC		0x7000001a | 
|  | #define SHT_MIPS_DELTASYM	0x7000001b | 
|  | #define SHT_MIPS_DELTAINST	0x7000001c | 
|  | #define SHT_MIPS_DELTACLASS	0x7000001d | 
|  | #define SHT_MIPS_DWARF		0x7000001e | 
|  | #define SHT_MIPS_DELTADECL	0x7000001f | 
|  | #define SHT_MIPS_SYMBOL_LIB	0x70000020 | 
|  | #define SHT_MIPS_EVENTS		0x70000021 | 
|  | #define SHT_MIPS_TRANSLATE	0x70000022 | 
|  | #define SHT_MIPS_PIXIE		0x70000023 | 
|  | #define SHT_MIPS_XLATE		0x70000024 | 
|  | #define SHT_MIPS_XLATE_DEBUG	0x70000025 | 
|  | #define SHT_MIPS_WHIRL		0x70000026 | 
|  | #define SHT_MIPS_EH_REGION	0x70000027 | 
|  | #define SHT_MIPS_XLATE_OLD	0x70000028 | 
|  | #define SHT_MIPS_PDR_EXCEPTION	0x70000029 | 
|  |  | 
|  | #define SHF_MIPS_GPREL		0x10000000 | 
|  | #define SHF_MIPS_MERGE		0x20000000 | 
|  | #define SHF_MIPS_ADDR		0x40000000 | 
|  | #define SHF_MIPS_STRING		0x80000000 | 
|  | #define SHF_MIPS_NOSTRIP	0x08000000 | 
|  | #define SHF_MIPS_LOCAL		0x04000000 | 
|  | #define SHF_MIPS_NAMES		0x02000000 | 
|  | #define SHF_MIPS_NODUPES	0x01000000 | 
|  |  | 
|  | #ifndef ELF_ARCH | 
|  | /* ELF register definitions */ | 
|  | #define ELF_NGREG	45 | 
|  | #define ELF_NFPREG	33 | 
|  |  | 
|  | typedef unsigned long elf_greg_t; | 
|  | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | 
|  |  | 
|  | typedef double elf_fpreg_t; | 
|  | typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; | 
|  |  | 
|  | #ifdef CONFIG_32BIT | 
|  |  | 
|  | /* | 
|  | * This is used to ensure we don't load something for the wrong architecture. | 
|  | */ | 
|  | #define elf_check_arch(hdr)						\ | 
|  | ({									\ | 
|  | int __res = 1;							\ | 
|  | struct elfhdr *__h = (hdr);					\ | 
|  | \ | 
|  | if (__h->e_machine != EM_MIPS)					\ | 
|  | __res = 0;						\ | 
|  | if (__h->e_ident[EI_CLASS] != ELFCLASS32)			\ | 
|  | __res = 0;						\ | 
|  | if ((__h->e_flags & EF_MIPS_ABI2) != 0)				\ | 
|  | __res = 0;						\ | 
|  | if (((__h->e_flags & EF_MIPS_ABI) != 0) &&			\ | 
|  | ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32))		\ | 
|  | __res = 0;						\ | 
|  | \ | 
|  | __res;								\ | 
|  | }) | 
|  |  | 
|  | /* | 
|  | * These are used to set parameters in the core dumps. | 
|  | */ | 
|  | #define ELF_CLASS	ELFCLASS32 | 
|  |  | 
|  | #endif /* CONFIG_32BIT */ | 
|  |  | 
|  | #ifdef CONFIG_64BIT | 
|  | /* | 
|  | * This is used to ensure we don't load something for the wrong architecture. | 
|  | */ | 
|  | #define elf_check_arch(hdr)						\ | 
|  | ({									\ | 
|  | int __res = 1;							\ | 
|  | struct elfhdr *__h = (hdr);					\ | 
|  | \ | 
|  | if (__h->e_machine != EM_MIPS)					\ | 
|  | __res = 0;						\ | 
|  | if (__h->e_ident[EI_CLASS] != ELFCLASS64) 			\ | 
|  | __res = 0;						\ | 
|  | \ | 
|  | __res;								\ | 
|  | }) | 
|  |  | 
|  | /* | 
|  | * These are used to set parameters in the core dumps. | 
|  | */ | 
|  | #define ELF_CLASS	ELFCLASS64 | 
|  |  | 
|  | #endif /* CONFIG_64BIT */ | 
|  |  | 
|  | /* | 
|  | * These are used to set parameters in the core dumps. | 
|  | */ | 
|  | #ifdef __MIPSEB__ | 
|  | #define ELF_DATA	ELFDATA2MSB | 
|  | #elif __MIPSEL__ | 
|  | #define ELF_DATA	ELFDATA2LSB | 
|  | #endif | 
|  | #define ELF_ARCH	EM_MIPS | 
|  |  | 
|  | #endif /* !defined(ELF_ARCH) */ | 
|  |  | 
|  | struct mips_abi; | 
|  |  | 
|  | extern struct mips_abi mips_abi; | 
|  | extern struct mips_abi mips_abi_32; | 
|  | extern struct mips_abi mips_abi_n32; | 
|  |  | 
|  | #ifdef CONFIG_32BIT | 
|  |  | 
|  | #define SET_PERSONALITY(ex, ibcs2)					\ | 
|  | do {									\ | 
|  | if (ibcs2)							\ | 
|  | set_personality(PER_SVR4);				\ | 
|  | set_personality(PER_LINUX);					\ | 
|  | \ | 
|  | current->thread.abi = &mips_abi;				\ | 
|  | } while (0) | 
|  |  | 
|  | #endif /* CONFIG_32BIT */ | 
|  |  | 
|  | #ifdef CONFIG_64BIT | 
|  |  | 
|  | #ifdef CONFIG_MIPS32_N32 | 
|  | #define __SET_PERSONALITY32_N32()					\ | 
|  | do {								\ | 
|  | set_thread_flag(TIF_32BIT_ADDR);			\ | 
|  | current->thread.abi = &mips_abi_n32;			\ | 
|  | } while (0) | 
|  | #else | 
|  | #define __SET_PERSONALITY32_N32()					\ | 
|  | do { } while (0) | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_MIPS32_O32 | 
|  | #define __SET_PERSONALITY32_O32()					\ | 
|  | do {								\ | 
|  | set_thread_flag(TIF_32BIT_REGS);			\ | 
|  | set_thread_flag(TIF_32BIT_ADDR);			\ | 
|  | current->thread.abi = &mips_abi_32;			\ | 
|  | } while (0) | 
|  | #else | 
|  | #define __SET_PERSONALITY32_O32()					\ | 
|  | do { } while (0) | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_MIPS32_COMPAT | 
|  | #define __SET_PERSONALITY32(ex)						\ | 
|  | do {									\ | 
|  | if ((((ex).e_flags & EF_MIPS_ABI2) != 0) &&			\ | 
|  | ((ex).e_flags & EF_MIPS_ABI) == 0)				\ | 
|  | __SET_PERSONALITY32_N32();				\ | 
|  | else								\ | 
|  | __SET_PERSONALITY32_O32();				\ | 
|  | } while (0) | 
|  | #else | 
|  | #define __SET_PERSONALITY32(ex)	do { } while (0) | 
|  | #endif | 
|  |  | 
|  | #define SET_PERSONALITY(ex, ibcs2)					\ | 
|  | do {									\ | 
|  | clear_thread_flag(TIF_32BIT_REGS);				\ | 
|  | clear_thread_flag(TIF_32BIT_ADDR);				\ | 
|  | \ | 
|  | if ((ex).e_ident[EI_CLASS] == ELFCLASS32)			\ | 
|  | __SET_PERSONALITY32(ex);				\ | 
|  | else								\ | 
|  | current->thread.abi = &mips_abi;			\ | 
|  | \ | 
|  | if (ibcs2)							\ | 
|  | set_personality(PER_SVR4);				\ | 
|  | else if (current->personality != PER_LINUX32)			\ | 
|  | set_personality(PER_LINUX);				\ | 
|  | } while (0) | 
|  |  | 
|  | #endif /* CONFIG_64BIT */ | 
|  |  | 
|  | struct task_struct; | 
|  |  | 
|  | extern void elf_dump_regs(elf_greg_t *, struct pt_regs *regs); | 
|  | 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_REGS(elf_regs, regs)			\ | 
|  | elf_dump_regs((elf_greg_t *)&(elf_regs), regs); | 
|  | #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) | 
|  |  | 
|  | #define USE_ELF_CORE_DUMP | 
|  | #define ELF_EXEC_PAGESIZE	PAGE_SIZE | 
|  |  | 
|  | /* This yields a mask that user programs can use to figure out what | 
|  | instruction set this cpu supports.  This could be done in userspace, | 
|  | but it's not easy, and we've already done it here.  */ | 
|  |  | 
|  | #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. | 
|  |  | 
|  | For the moment, we have only optimizations for the Intel generations, | 
|  | but that could change... */ | 
|  |  | 
|  | #define ELF_PLATFORM  (NULL) | 
|  |  | 
|  | /* | 
|  | * See comments in asm-alpha/elf.h, this is the same thing | 
|  | * on the MIPS. | 
|  | */ | 
|  | #define ELF_PLAT_INIT(_r, load_addr)	do { \ | 
|  | _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0;	\ | 
|  | _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0;	\ | 
|  | _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0;	\ | 
|  | _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0;	\ | 
|  | _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0;	\ | 
|  | _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0;	\ | 
|  | _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0;	\ | 
|  | _r->regs[30] = _r->regs[31] = 0;				\ | 
|  | } while (0) | 
|  |  | 
|  | /* 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.  */ | 
|  |  | 
|  | #ifndef ELF_ET_DYN_BASE | 
|  | #define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2) | 
|  | #endif | 
|  |  | 
|  | #endif /* _ASM_ELF_H */ |