| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_ELF_H | 
 | 2 | #define _ASM_POWERPC_ELF_H | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 |  | 
| Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 4 | #ifdef __KERNEL__ | 
| Tim Schmielau | 8c65b4a | 2005-11-07 00:59:43 -0800 | [diff] [blame] | 5 | #include <linux/sched.h>	/* for task_struct */ | 
| David Woodhouse | dd02ec3 | 2006-04-25 13:51:52 +0100 | [diff] [blame] | 6 | #include <asm/page.h> | 
 | 7 | #include <asm/string.h> | 
| Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 8 | #endif | 
 | 9 |  | 
| Kumar Gala | 812d904 | 2009-02-11 19:09:56 +0000 | [diff] [blame] | 10 | #include <linux/types.h> | 
 | 11 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <asm/ptrace.h> | 
 | 13 | #include <asm/cputable.h> | 
| H. J. Lu | 36d57ac | 2005-09-06 15:16:49 -0700 | [diff] [blame] | 14 | #include <asm/auxvec.h> | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 |  | 
 | 16 | /* PowerPC relocations defined by the ABIs */ | 
 | 17 | #define R_PPC_NONE		0 | 
 | 18 | #define R_PPC_ADDR32		1	/* 32bit absolute address */ | 
 | 19 | #define R_PPC_ADDR24		2	/* 26bit address, 2 bits ignored.  */ | 
 | 20 | #define R_PPC_ADDR16		3	/* 16bit absolute address */ | 
 | 21 | #define R_PPC_ADDR16_LO		4	/* lower 16bit of absolute address */ | 
 | 22 | #define R_PPC_ADDR16_HI		5	/* high 16bit of absolute address */ | 
 | 23 | #define R_PPC_ADDR16_HA		6	/* adjusted high 16bit */ | 
 | 24 | #define R_PPC_ADDR14		7	/* 16bit address, 2 bits ignored */ | 
 | 25 | #define R_PPC_ADDR14_BRTAKEN	8 | 
 | 26 | #define R_PPC_ADDR14_BRNTAKEN	9 | 
 | 27 | #define R_PPC_REL24		10	/* PC relative 26 bit */ | 
 | 28 | #define R_PPC_REL14		11	/* PC relative 16 bit */ | 
 | 29 | #define R_PPC_REL14_BRTAKEN	12 | 
 | 30 | #define R_PPC_REL14_BRNTAKEN	13 | 
 | 31 | #define R_PPC_GOT16		14 | 
 | 32 | #define R_PPC_GOT16_LO		15 | 
 | 33 | #define R_PPC_GOT16_HI		16 | 
 | 34 | #define R_PPC_GOT16_HA		17 | 
 | 35 | #define R_PPC_PLTREL24		18 | 
 | 36 | #define R_PPC_COPY		19 | 
 | 37 | #define R_PPC_GLOB_DAT		20 | 
 | 38 | #define R_PPC_JMP_SLOT		21 | 
 | 39 | #define R_PPC_RELATIVE		22 | 
 | 40 | #define R_PPC_LOCAL24PC		23 | 
 | 41 | #define R_PPC_UADDR32		24 | 
 | 42 | #define R_PPC_UADDR16		25 | 
 | 43 | #define R_PPC_REL32		26 | 
 | 44 | #define R_PPC_PLT32		27 | 
 | 45 | #define R_PPC_PLTREL32		28 | 
 | 46 | #define R_PPC_PLT16_LO		29 | 
 | 47 | #define R_PPC_PLT16_HI		30 | 
 | 48 | #define R_PPC_PLT16_HA		31 | 
 | 49 | #define R_PPC_SDAREL16		32 | 
 | 50 | #define R_PPC_SECTOFF		33 | 
 | 51 | #define R_PPC_SECTOFF_LO	34 | 
 | 52 | #define R_PPC_SECTOFF_HI	35 | 
 | 53 | #define R_PPC_SECTOFF_HA	36 | 
 | 54 |  | 
 | 55 | /* PowerPC relocations defined for the TLS access ABI.  */ | 
 | 56 | #define R_PPC_TLS		67 /* none	(sym+add)@tls */ | 
 | 57 | #define R_PPC_DTPMOD32		68 /* word32	(sym+add)@dtpmod */ | 
 | 58 | #define R_PPC_TPREL16		69 /* half16*	(sym+add)@tprel */ | 
 | 59 | #define R_PPC_TPREL16_LO	70 /* half16	(sym+add)@tprel@l */ | 
 | 60 | #define R_PPC_TPREL16_HI	71 /* half16	(sym+add)@tprel@h */ | 
 | 61 | #define R_PPC_TPREL16_HA	72 /* half16	(sym+add)@tprel@ha */ | 
 | 62 | #define R_PPC_TPREL32		73 /* word32	(sym+add)@tprel */ | 
 | 63 | #define R_PPC_DTPREL16		74 /* half16*	(sym+add)@dtprel */ | 
 | 64 | #define R_PPC_DTPREL16_LO	75 /* half16	(sym+add)@dtprel@l */ | 
 | 65 | #define R_PPC_DTPREL16_HI	76 /* half16	(sym+add)@dtprel@h */ | 
 | 66 | #define R_PPC_DTPREL16_HA	77 /* half16	(sym+add)@dtprel@ha */ | 
 | 67 | #define R_PPC_DTPREL32		78 /* word32	(sym+add)@dtprel */ | 
 | 68 | #define R_PPC_GOT_TLSGD16	79 /* half16*	(sym+add)@got@tlsgd */ | 
 | 69 | #define R_PPC_GOT_TLSGD16_LO	80 /* half16	(sym+add)@got@tlsgd@l */ | 
 | 70 | #define R_PPC_GOT_TLSGD16_HI	81 /* half16	(sym+add)@got@tlsgd@h */ | 
 | 71 | #define R_PPC_GOT_TLSGD16_HA	82 /* half16	(sym+add)@got@tlsgd@ha */ | 
 | 72 | #define R_PPC_GOT_TLSLD16	83 /* half16*	(sym+add)@got@tlsld */ | 
 | 73 | #define R_PPC_GOT_TLSLD16_LO	84 /* half16	(sym+add)@got@tlsld@l */ | 
 | 74 | #define R_PPC_GOT_TLSLD16_HI	85 /* half16	(sym+add)@got@tlsld@h */ | 
 | 75 | #define R_PPC_GOT_TLSLD16_HA	86 /* half16	(sym+add)@got@tlsld@ha */ | 
 | 76 | #define R_PPC_GOT_TPREL16	87 /* half16*	(sym+add)@got@tprel */ | 
 | 77 | #define R_PPC_GOT_TPREL16_LO	88 /* half16	(sym+add)@got@tprel@l */ | 
 | 78 | #define R_PPC_GOT_TPREL16_HI	89 /* half16	(sym+add)@got@tprel@h */ | 
 | 79 | #define R_PPC_GOT_TPREL16_HA	90 /* half16	(sym+add)@got@tprel@ha */ | 
 | 80 | #define R_PPC_GOT_DTPREL16	91 /* half16*	(sym+add)@got@dtprel */ | 
 | 81 | #define R_PPC_GOT_DTPREL16_LO	92 /* half16*	(sym+add)@got@dtprel@l */ | 
 | 82 | #define R_PPC_GOT_DTPREL16_HI	93 /* half16*	(sym+add)@got@dtprel@h */ | 
 | 83 | #define R_PPC_GOT_DTPREL16_HA	94 /* half16*	(sym+add)@got@dtprel@ha */ | 
 | 84 |  | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 85 | /* keep this the last entry. */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | #define R_PPC_NUM		95 | 
 | 87 |  | 
 | 88 | /* | 
 | 89 |  * ELF register definitions.. | 
 | 90 |  * | 
 | 91 |  * This program is free software; you can redistribute it and/or | 
 | 92 |  * modify it under the terms of the GNU General Public License | 
 | 93 |  * as published by the Free Software Foundation; either version | 
 | 94 |  * 2 of the License, or (at your option) any later version. | 
 | 95 |  */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 |  | 
 | 97 | #define ELF_NGREG	48	/* includes nip, msr, lr, etc. */ | 
 | 98 | #define ELF_NFPREG	33	/* includes fpscr */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 |  | 
 | 100 | typedef unsigned long elf_greg_t64; | 
 | 101 | typedef elf_greg_t64 elf_gregset_t64[ELF_NGREG]; | 
 | 102 |  | 
 | 103 | typedef unsigned int elf_greg_t32; | 
 | 104 | typedef elf_greg_t32 elf_gregset_t32[ELF_NGREG]; | 
| Roland McGrath | 5f149cf | 2007-10-16 23:26:55 -0700 | [diff] [blame] | 105 | typedef elf_gregset_t32 compat_elf_gregset_t; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 |  | 
 | 107 | /* | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 108 |  * ELF_ARCH, CLASS, and DATA are used to set parameters in the core dumps. | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 |  */ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 110 | #ifdef __powerpc64__ | 
 | 111 | # define ELF_NVRREG32	33	/* includes vscr & vrsave stuffed together */ | 
 | 112 | # define ELF_NVRREG	34	/* includes vscr & vrsave in split vectors */ | 
| Michael Neuling | ce48b21 | 2008-06-25 14:07:18 +1000 | [diff] [blame] | 113 | # define ELF_NVSRHALFREG 32	/* Half the vsx registers */ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 114 | # define ELF_GREG_TYPE	elf_greg_t64 | 
 | 115 | #else | 
 | 116 | # define ELF_NEVRREG	34	/* includes acc (as 2) */ | 
 | 117 | # define ELF_NVRREG	33	/* includes vscr */ | 
 | 118 | # define ELF_GREG_TYPE	elf_greg_t32 | 
 | 119 | # define ELF_ARCH	EM_PPC | 
 | 120 | # define ELF_CLASS	ELFCLASS32 | 
 | 121 | # define ELF_DATA	ELFDATA2MSB | 
 | 122 | #endif /* __powerpc64__ */ | 
 | 123 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | #ifndef ELF_ARCH | 
 | 125 | # define ELF_ARCH	EM_PPC64 | 
 | 126 | # define ELF_CLASS	ELFCLASS64 | 
 | 127 | # define ELF_DATA	ELFDATA2MSB | 
 | 128 |   typedef elf_greg_t64 elf_greg_t; | 
 | 129 |   typedef elf_gregset_t64 elf_gregset_t; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | #else | 
 | 131 |   /* Assumption: ELF_ARCH == EM_PPC and ELF_CLASS == ELFCLASS32 */ | 
 | 132 |   typedef elf_greg_t32 elf_greg_t; | 
 | 133 |   typedef elf_gregset_t32 elf_gregset_t; | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 134 | #endif /* ELF_ARCH */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 |  | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 136 | /* Floating point registers */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | typedef double elf_fpreg_t; | 
 | 138 | typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; | 
 | 139 |  | 
 | 140 | /* Altivec registers */ | 
 | 141 | /* | 
 | 142 |  * The entries with indexes 0-31 contain the corresponding vector registers.  | 
 | 143 |  * The entry with index 32 contains the vscr as the last word (offset 12)  | 
 | 144 |  * within the quadword.  This allows the vscr to be stored as either a  | 
 | 145 |  * quadword (since it must be copied via a vector register to/from storage)  | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 146 |  * or as a word.   | 
 | 147 |  * | 
 | 148 |  * 64-bit kernel notes: The entry at index 33 contains the vrsave as the first   | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 |  * word (offset 0) within the quadword. | 
 | 150 |  * | 
 | 151 |  * This definition of the VMX state is compatible with the current PPC32  | 
 | 152 |  * ptrace interface.  This allows signal handling and ptrace to use the same  | 
 | 153 |  * structures.  This also simplifies the implementation of a bi-arch  | 
 | 154 |  * (combined (32- and 64-bit) gdb. | 
 | 155 |  * | 
 | 156 |  * Note that it's _not_ compatible with 32 bits ucontext which stuffs the | 
 | 157 |  * vrsave along with vscr and so only uses 33 vectors for the register set | 
 | 158 |  */ | 
 | 159 | typedef __vector128 elf_vrreg_t; | 
 | 160 | typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG]; | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 161 | #ifdef __powerpc64__ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32]; | 
| Michael Neuling | ce48b21 | 2008-06-25 14:07:18 +1000 | [diff] [blame] | 163 | typedef elf_fpreg_t elf_vsrreghalf_t32[ELF_NVSRHALFREG]; | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 164 | #endif | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 |  | 
| David Woodhouse | dd02ec3 | 2006-04-25 13:51:52 +0100 | [diff] [blame] | 166 | #ifdef __KERNEL__ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | /* | 
 | 168 |  * This is used to ensure we don't load something for the wrong architecture. | 
 | 169 |  */ | 
 | 170 | #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) | 
| Roland McGrath | 01e31db | 2008-01-02 17:03:11 -0800 | [diff] [blame] | 171 | #define compat_elf_check_arch(x)	((x)->e_machine == EM_PPC) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 |  | 
| Roland McGrath | 8197038 | 2007-12-20 03:58:12 -0800 | [diff] [blame] | 173 | #define CORE_DUMP_USE_REGSET | 
| Olof Johansson | 637a6ff | 2005-09-20 13:47:41 +1000 | [diff] [blame] | 174 | #define ELF_EXEC_PAGESIZE	PAGE_SIZE | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 |  | 
 | 176 | /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical | 
 | 177 |    use of this is to invoke "./ld.so someprog" to test out a new version of | 
 | 178 |    the loader.  We need to make sure that it is out of the way of the program | 
 | 179 |    that it will "exec", and that there is sufficient room for the brk.  */ | 
 | 180 |  | 
| Anton Blanchard | 501cb16 | 2009-02-22 01:50:07 +0000 | [diff] [blame] | 181 | extern unsigned long randomize_et_dyn(unsigned long base); | 
 | 182 | #define ELF_ET_DYN_BASE		(randomize_et_dyn(0x20000000)) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 |  | 
| Roland McGrath | 5f149cf | 2007-10-16 23:26:55 -0700 | [diff] [blame] | 184 | /* | 
 | 185 |  * Our registers are always unsigned longs, whether we're a 32 bit | 
 | 186 |  * process or 64 bit, on either a 64 bit or 32 bit kernel. | 
 | 187 |  * | 
 | 188 |  * This macro relies on elf_regs[i] having the right type to truncate to, | 
 | 189 |  * either u32 or u64.  It defines the body of the elf_core_copy_regs | 
 | 190 |  * function, either the native one with elf_gregset_t elf_regs or | 
 | 191 |  * the 32-bit one with elf_gregset_t32 elf_regs. | 
 | 192 |  */ | 
 | 193 | #define PPC_ELF_CORE_COPY_REGS(elf_regs, regs) \ | 
 | 194 | 	int i, nregs = min(sizeof(*regs) / sizeof(unsigned long), \ | 
 | 195 | 			   (size_t)ELF_NGREG);			  \ | 
 | 196 | 	for (i = 0; i < nregs; i++) \ | 
 | 197 | 		elf_regs[i] = ((unsigned long *) regs)[i]; \ | 
 | 198 | 	memset(&elf_regs[i], 0, (ELF_NGREG - i) * sizeof(elf_regs[0])) | 
 | 199 |  | 
 | 200 | /* Common routine for both 32-bit and 64-bit native processes */ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 201 | static inline void ppc_elf_core_copy_regs(elf_gregset_t elf_regs, | 
| Roland McGrath | 5f149cf | 2007-10-16 23:26:55 -0700 | [diff] [blame] | 202 | 					  struct pt_regs *regs) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | { | 
| Roland McGrath | 5f149cf | 2007-10-16 23:26:55 -0700 | [diff] [blame] | 204 | 	PPC_ELF_CORE_COPY_REGS(elf_regs, regs); | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | } | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 206 | #define ELF_CORE_COPY_REGS(gregs, regs) ppc_elf_core_copy_regs(gregs, regs); | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 |  | 
| Mark Nelson | 1f7d666 | 2007-10-16 23:25:40 -0700 | [diff] [blame] | 208 | typedef elf_vrregset_t elf_fpxregset_t; | 
 | 209 |  | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 210 | /* ELF_HWCAP yields a mask that user programs can use to figure out what | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 |    instruction set this cpu supports.  This could be done in userspace, | 
 | 212 |    but it's not easy, and we've already done it here.  */ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 213 | # define ELF_HWCAP	(cur_cpu_spec->cpu_user_features) | 
| Paul Mackerras | 80f15dc | 2006-01-14 10:11:39 +1100 | [diff] [blame] | 214 |  | 
 | 215 | /* This yields a string that ld.so will use to load implementation | 
 | 216 |    specific libraries for optimization.  This is more specific in | 
 | 217 |    intent than poking at uname or /proc/cpuinfo.  */ | 
 | 218 |  | 
 | 219 | #define ELF_PLATFORM	(cur_cpu_spec->platform) | 
 | 220 |  | 
| Nathan Lynch | 9115d13 | 2008-07-16 09:58:51 +1000 | [diff] [blame] | 221 | /* While ELF_PLATFORM indicates the ISA supported by the platform, it | 
 | 222 |  * may not accurately reflect the underlying behavior of the hardware | 
 | 223 |  * (as in the case of running in Power5+ compatibility mode on a | 
 | 224 |  * Power6 machine).  ELF_BASE_PLATFORM allows ld.so to load libraries | 
 | 225 |  * that are tuned for the real hardware. | 
 | 226 |  */ | 
 | 227 | #define ELF_BASE_PLATFORM (powerpc_base_platform) | 
 | 228 |  | 
| Kumar Gala | 400d221 | 2005-09-27 15:13:12 -0500 | [diff] [blame] | 229 | #ifdef __powerpc64__ | 
| Paul Mackerras | 06d67d5 | 2005-10-10 22:29:05 +1000 | [diff] [blame] | 230 | # define ELF_PLAT_INIT(_r, load_addr)	do {	\ | 
 | 231 | 	_r->gpr[2] = load_addr; 		\ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 232 | } while (0) | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 233 | #endif /* __powerpc64__ */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 |  | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 235 | #ifdef __powerpc64__ | 
| Martin Schwidefsky | 0b59268 | 2008-10-16 15:39:57 +0200 | [diff] [blame] | 236 | # define SET_PERSONALITY(ex)					\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | do {								\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | 	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)		\ | 
| Andreas Schwab | 94f28da | 2010-01-30 10:20:59 +0000 | [diff] [blame] | 239 | 		set_thread_flag(TIF_32BIT);			\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | 	else							\ | 
| Andreas Schwab | 94f28da | 2010-01-30 10:20:59 +0000 | [diff] [blame] | 241 | 		clear_thread_flag(TIF_32BIT);			\ | 
| Paul Mackerras | ce10d97 | 2005-06-08 21:59:15 +1000 | [diff] [blame] | 242 | 	if (personality(current->personality) != PER_LINUX32)	\ | 
| Eric B Munson | a91a03e | 2008-07-01 02:12:13 +1000 | [diff] [blame] | 243 | 		set_personality(PER_LINUX |			\ | 
 | 244 | 			(current->personality & (~PER_MASK)));	\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | } while (0) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | /* | 
 | 247 |  * An executable for which elf_read_implies_exec() returns TRUE will | 
| Anton Blanchard | a2f95a5 | 2005-05-01 08:58:45 -0700 | [diff] [blame] | 248 |  * have the READ_IMPLIES_EXEC personality flag set automatically. This | 
 | 249 |  * is only required to work around bugs in old 32bit toolchains. Since | 
 | 250 |  * the 64bit ABI has never had these issues dont enable the workaround | 
 | 251 |  * even if we have an executable stack. | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 |  */ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 253 | # define elf_read_implies_exec(ex, exec_stk) (test_thread_flag(TIF_32BIT) ? \ | 
| Kumar Gala | d89ebca | 2009-04-28 03:32:36 +0000 | [diff] [blame] | 254 | 		(exec_stk == EXSTACK_DEFAULT) : 0) | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 255 | #else  | 
| Andreas Schwab | 59e4c3a | 2009-04-16 06:22:01 +0000 | [diff] [blame] | 256 | # define SET_PERSONALITY(ex) \ | 
 | 257 |   set_personality(PER_LINUX | (current->personality & (~PER_MASK))) | 
| Kumar Gala | d89ebca | 2009-04-28 03:32:36 +0000 | [diff] [blame] | 258 | # define elf_read_implies_exec(ex, exec_stk) (exec_stk == EXSTACK_DEFAULT) | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 259 | #endif /* __powerpc64__ */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | extern int dcache_bsize; | 
 | 262 | extern int icache_bsize; | 
 | 263 | extern int ucache_bsize; | 
 | 264 |  | 
| Benjamin Herrenschmidt | a7f290d | 2005-11-11 21:15:21 +1100 | [diff] [blame] | 265 | /* vDSO has arch_setup_additional_pages */ | 
 | 266 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | struct linux_binprm; | 
| Benjamin Herrenschmidt | a7f290d | 2005-11-11 21:15:21 +1100 | [diff] [blame] | 268 | extern int arch_setup_additional_pages(struct linux_binprm *bprm, | 
| Martin Schwidefsky | fc5243d | 2008-12-25 13:38:35 +0100 | [diff] [blame] | 269 | 				       int uses_interp); | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 270 | #define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b); | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 |  | 
| Anton Blanchard | 2dadb98 | 2009-02-22 01:50:02 +0000 | [diff] [blame] | 272 | /* 1GB for 64bit, 8MB for 32bit */ | 
 | 273 | #define STACK_RND_MASK (is_32bit_task() ? \ | 
 | 274 | 	(0x7ff >> (PAGE_SHIFT - 12)) : \ | 
 | 275 | 	(0x3ffff >> (PAGE_SHIFT - 12))) | 
 | 276 |  | 
| Anton Blanchard | 912f9ee | 2009-02-22 01:50:04 +0000 | [diff] [blame] | 277 | extern unsigned long arch_randomize_brk(struct mm_struct *mm); | 
 | 278 | #define arch_randomize_brk arch_randomize_brk | 
 | 279 |  | 
| Adrian Bunk | 178f8d7 | 2008-06-24 03:48:28 +1000 | [diff] [blame] | 280 | #endif /* __KERNEL__ */ | 
 | 281 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | /* | 
 | 283 |  * The requirements here are: | 
 | 284 |  * - keep the final alignment of sp (sp & 0xf) | 
 | 285 |  * - make sure the 32-bit value at the first 16 byte aligned position of | 
 | 286 |  *   AUXV is greater than 16 for glibc compatibility. | 
 | 287 |  *   AT_IGNOREPPC is used for that. | 
 | 288 |  * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC, | 
 | 289 |  *   even if DLINFO_ARCH_ITEMS goes to zero or is undefined. | 
| Olaf Hering | 4f9a58d | 2007-10-16 23:30:12 -0700 | [diff] [blame] | 290 |  * update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 |  */ | 
 | 292 | #define ARCH_DLINFO							\ | 
 | 293 | do {									\ | 
 | 294 | 	/* Handle glibc compatibility. */				\ | 
 | 295 | 	NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);			\ | 
 | 296 | 	NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);			\ | 
 | 297 | 	/* Cache size items */						\ | 
 | 298 | 	NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize);			\ | 
 | 299 | 	NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize);			\ | 
 | 300 | 	NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize);			\ | 
| Benjamin Herrenschmidt | a5bba93 | 2006-05-30 13:51:37 +1000 | [diff] [blame] | 301 | 	VDSO_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso_base)	\ | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 302 | } while (0) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 |  | 
 | 304 | /* PowerPC64 relocations defined by the ABIs */ | 
 | 305 | #define R_PPC64_NONE    R_PPC_NONE | 
 | 306 | #define R_PPC64_ADDR32  R_PPC_ADDR32  /* 32bit absolute address.  */ | 
 | 307 | #define R_PPC64_ADDR24  R_PPC_ADDR24  /* 26bit address, word aligned.  */ | 
 | 308 | #define R_PPC64_ADDR16  R_PPC_ADDR16  /* 16bit absolute address. */ | 
 | 309 | #define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of abs. address.  */ | 
 | 310 | #define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of abs. address. */ | 
 | 311 | #define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits.  */ | 
 | 312 | #define R_PPC64_ADDR14 R_PPC_ADDR14   /* 16bit address, word aligned.  */ | 
 | 313 | #define R_PPC64_ADDR14_BRTAKEN  R_PPC_ADDR14_BRTAKEN | 
 | 314 | #define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN | 
 | 315 | #define R_PPC64_REL24   R_PPC_REL24 /* PC relative 26 bit, word aligned.  */ | 
 | 316 | #define R_PPC64_REL14   R_PPC_REL14 /* PC relative 16 bit. */ | 
 | 317 | #define R_PPC64_REL14_BRTAKEN   R_PPC_REL14_BRTAKEN | 
 | 318 | #define R_PPC64_REL14_BRNTAKEN  R_PPC_REL14_BRNTAKEN | 
 | 319 | #define R_PPC64_GOT16     R_PPC_GOT16 | 
 | 320 | #define R_PPC64_GOT16_LO  R_PPC_GOT16_LO | 
 | 321 | #define R_PPC64_GOT16_HI  R_PPC_GOT16_HI | 
 | 322 | #define R_PPC64_GOT16_HA  R_PPC_GOT16_HA | 
 | 323 |  | 
 | 324 | #define R_PPC64_COPY      R_PPC_COPY | 
 | 325 | #define R_PPC64_GLOB_DAT  R_PPC_GLOB_DAT | 
 | 326 | #define R_PPC64_JMP_SLOT  R_PPC_JMP_SLOT | 
 | 327 | #define R_PPC64_RELATIVE  R_PPC_RELATIVE | 
 | 328 |  | 
 | 329 | #define R_PPC64_UADDR32   R_PPC_UADDR32 | 
 | 330 | #define R_PPC64_UADDR16   R_PPC_UADDR16 | 
 | 331 | #define R_PPC64_REL32     R_PPC_REL32 | 
 | 332 | #define R_PPC64_PLT32     R_PPC_PLT32 | 
 | 333 | #define R_PPC64_PLTREL32  R_PPC_PLTREL32 | 
 | 334 | #define R_PPC64_PLT16_LO  R_PPC_PLT16_LO | 
 | 335 | #define R_PPC64_PLT16_HI  R_PPC_PLT16_HI | 
 | 336 | #define R_PPC64_PLT16_HA  R_PPC_PLT16_HA | 
 | 337 |  | 
 | 338 | #define R_PPC64_SECTOFF     R_PPC_SECTOFF | 
 | 339 | #define R_PPC64_SECTOFF_LO  R_PPC_SECTOFF_LO | 
 | 340 | #define R_PPC64_SECTOFF_HI  R_PPC_SECTOFF_HI | 
 | 341 | #define R_PPC64_SECTOFF_HA  R_PPC_SECTOFF_HA | 
 | 342 | #define R_PPC64_ADDR30          37  /* word30 (S + A - P) >> 2.  */ | 
 | 343 | #define R_PPC64_ADDR64          38  /* doubleword64 S + A.  */ | 
 | 344 | #define R_PPC64_ADDR16_HIGHER   39  /* half16 #higher(S + A).  */ | 
 | 345 | #define R_PPC64_ADDR16_HIGHERA  40  /* half16 #highera(S + A).  */ | 
 | 346 | #define R_PPC64_ADDR16_HIGHEST  41  /* half16 #highest(S + A).  */ | 
 | 347 | #define R_PPC64_ADDR16_HIGHESTA 42  /* half16 #highesta(S + A). */ | 
 | 348 | #define R_PPC64_UADDR64     43  /* doubleword64 S + A.  */ | 
 | 349 | #define R_PPC64_REL64       44  /* doubleword64 S + A - P.  */ | 
 | 350 | #define R_PPC64_PLT64       45  /* doubleword64 L + A.  */ | 
 | 351 | #define R_PPC64_PLTREL64    46  /* doubleword64 L + A - P.  */ | 
 | 352 | #define R_PPC64_TOC16       47  /* half16* S + A - .TOC.  */ | 
 | 353 | #define R_PPC64_TOC16_LO    48  /* half16 #lo(S + A - .TOC.).  */ | 
 | 354 | #define R_PPC64_TOC16_HI    49  /* half16 #hi(S + A - .TOC.).  */ | 
 | 355 | #define R_PPC64_TOC16_HA    50  /* half16 #ha(S + A - .TOC.).  */ | 
 | 356 | #define R_PPC64_TOC         51  /* doubleword64 .TOC. */ | 
 | 357 | #define R_PPC64_PLTGOT16    52  /* half16* M + A.  */ | 
 | 358 | #define R_PPC64_PLTGOT16_LO 53  /* half16 #lo(M + A).  */ | 
 | 359 | #define R_PPC64_PLTGOT16_HI 54  /* half16 #hi(M + A).  */ | 
 | 360 | #define R_PPC64_PLTGOT16_HA 55  /* half16 #ha(M + A).  */ | 
 | 361 |  | 
 | 362 | #define R_PPC64_ADDR16_DS      56 /* half16ds* (S + A) >> 2.  */ | 
 | 363 | #define R_PPC64_ADDR16_LO_DS   57 /* half16ds  #lo(S + A) >> 2.  */ | 
 | 364 | #define R_PPC64_GOT16_DS       58 /* half16ds* (G + A) >> 2.  */ | 
 | 365 | #define R_PPC64_GOT16_LO_DS    59 /* half16ds  #lo(G + A) >> 2.  */ | 
 | 366 | #define R_PPC64_PLT16_LO_DS    60 /* half16ds  #lo(L + A) >> 2.  */ | 
 | 367 | #define R_PPC64_SECTOFF_DS     61 /* half16ds* (R + A) >> 2.  */ | 
 | 368 | #define R_PPC64_SECTOFF_LO_DS  62 /* half16ds  #lo(R + A) >> 2.  */ | 
 | 369 | #define R_PPC64_TOC16_DS       63 /* half16ds* (S + A - .TOC.) >> 2.  */ | 
 | 370 | #define R_PPC64_TOC16_LO_DS    64 /* half16ds  #lo(S + A - .TOC.) >> 2.  */ | 
 | 371 | #define R_PPC64_PLTGOT16_DS    65 /* half16ds* (M + A) >> 2.  */ | 
 | 372 | #define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds  #lo(M + A) >> 2.  */ | 
 | 373 |  | 
 | 374 | /* PowerPC64 relocations defined for the TLS access ABI.  */ | 
 | 375 | #define R_PPC64_TLS		67 /* none	(sym+add)@tls */ | 
 | 376 | #define R_PPC64_DTPMOD64	68 /* doubleword64 (sym+add)@dtpmod */ | 
 | 377 | #define R_PPC64_TPREL16		69 /* half16*	(sym+add)@tprel */ | 
 | 378 | #define R_PPC64_TPREL16_LO	70 /* half16	(sym+add)@tprel@l */ | 
 | 379 | #define R_PPC64_TPREL16_HI	71 /* half16	(sym+add)@tprel@h */ | 
 | 380 | #define R_PPC64_TPREL16_HA	72 /* half16	(sym+add)@tprel@ha */ | 
 | 381 | #define R_PPC64_TPREL64		73 /* doubleword64 (sym+add)@tprel */ | 
 | 382 | #define R_PPC64_DTPREL16	74 /* half16*	(sym+add)@dtprel */ | 
 | 383 | #define R_PPC64_DTPREL16_LO	75 /* half16	(sym+add)@dtprel@l */ | 
 | 384 | #define R_PPC64_DTPREL16_HI	76 /* half16	(sym+add)@dtprel@h */ | 
 | 385 | #define R_PPC64_DTPREL16_HA	77 /* half16	(sym+add)@dtprel@ha */ | 
 | 386 | #define R_PPC64_DTPREL64	78 /* doubleword64 (sym+add)@dtprel */ | 
 | 387 | #define R_PPC64_GOT_TLSGD16	79 /* half16*	(sym+add)@got@tlsgd */ | 
 | 388 | #define R_PPC64_GOT_TLSGD16_LO	80 /* half16	(sym+add)@got@tlsgd@l */ | 
 | 389 | #define R_PPC64_GOT_TLSGD16_HI	81 /* half16	(sym+add)@got@tlsgd@h */ | 
 | 390 | #define R_PPC64_GOT_TLSGD16_HA	82 /* half16	(sym+add)@got@tlsgd@ha */ | 
 | 391 | #define R_PPC64_GOT_TLSLD16	83 /* half16*	(sym+add)@got@tlsld */ | 
 | 392 | #define R_PPC64_GOT_TLSLD16_LO	84 /* half16	(sym+add)@got@tlsld@l */ | 
 | 393 | #define R_PPC64_GOT_TLSLD16_HI	85 /* half16	(sym+add)@got@tlsld@h */ | 
 | 394 | #define R_PPC64_GOT_TLSLD16_HA	86 /* half16	(sym+add)@got@tlsld@ha */ | 
 | 395 | #define R_PPC64_GOT_TPREL16_DS	87 /* half16ds*	(sym+add)@got@tprel */ | 
 | 396 | #define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ | 
 | 397 | #define R_PPC64_GOT_TPREL16_HI	89 /* half16	(sym+add)@got@tprel@h */ | 
 | 398 | #define R_PPC64_GOT_TPREL16_HA	90 /* half16	(sym+add)@got@tprel@ha */ | 
 | 399 | #define R_PPC64_GOT_DTPREL16_DS	91 /* half16ds*	(sym+add)@got@dtprel */ | 
 | 400 | #define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ | 
 | 401 | #define R_PPC64_GOT_DTPREL16_HI	93 /* half16	(sym+add)@got@dtprel@h */ | 
 | 402 | #define R_PPC64_GOT_DTPREL16_HA	94 /* half16	(sym+add)@got@dtprel@ha */ | 
 | 403 | #define R_PPC64_TPREL16_DS	95 /* half16ds*	(sym+add)@tprel */ | 
 | 404 | #define R_PPC64_TPREL16_LO_DS	96 /* half16ds	(sym+add)@tprel@l */ | 
 | 405 | #define R_PPC64_TPREL16_HIGHER	97 /* half16	(sym+add)@tprel@higher */ | 
 | 406 | #define R_PPC64_TPREL16_HIGHERA	98 /* half16	(sym+add)@tprel@highera */ | 
 | 407 | #define R_PPC64_TPREL16_HIGHEST	99 /* half16	(sym+add)@tprel@highest */ | 
 | 408 | #define R_PPC64_TPREL16_HIGHESTA 100 /* half16	(sym+add)@tprel@highesta */ | 
 | 409 | #define R_PPC64_DTPREL16_DS	101 /* half16ds* (sym+add)@dtprel */ | 
 | 410 | #define R_PPC64_DTPREL16_LO_DS	102 /* half16ds	(sym+add)@dtprel@l */ | 
 | 411 | #define R_PPC64_DTPREL16_HIGHER	103 /* half16	(sym+add)@dtprel@higher */ | 
 | 412 | #define R_PPC64_DTPREL16_HIGHERA 104 /* half16	(sym+add)@dtprel@highera */ | 
 | 413 | #define R_PPC64_DTPREL16_HIGHEST 105 /* half16	(sym+add)@dtprel@highest */ | 
 | 414 | #define R_PPC64_DTPREL16_HIGHESTA 106 /* half16	(sym+add)@dtprel@highesta */ | 
 | 415 |  | 
 | 416 | /* Keep this the last entry.  */ | 
 | 417 | #define R_PPC64_NUM		107 | 
 | 418 |  | 
| James Bottomley | 2d291e9 | 2008-09-09 14:04:18 +0000 | [diff] [blame] | 419 | /* There's actually a third entry here, but it's unused */ | 
 | 420 | struct ppc64_opd_entry | 
 | 421 | { | 
 | 422 | 	unsigned long funcaddr; | 
 | 423 | 	unsigned long r2; | 
 | 424 | }; | 
 | 425 |  | 
| Adrian Bunk | 178f8d7 | 2008-06-24 03:48:28 +1000 | [diff] [blame] | 426 | #ifdef  __KERNEL__ | 
 | 427 |  | 
| Arnd Bergmann | e055595 | 2006-11-27 19:18:55 +0100 | [diff] [blame] | 428 | #ifdef CONFIG_SPU_BASE | 
| Dwayne Grant McConnell | bf1ab97 | 2006-11-23 00:46:37 +0100 | [diff] [blame] | 429 | /* Notes used in ET_CORE. Note name is "SPU/<fd>/<filename>". */ | 
 | 430 | #define NT_SPU		1 | 
 | 431 |  | 
| Dwayne Grant McConnell | bf1ab97 | 2006-11-23 00:46:37 +0100 | [diff] [blame] | 432 | #define ARCH_HAVE_EXTRA_ELF_NOTES | 
| Michael Ellerman | e550149 | 2007-09-19 14:38:12 +1000 | [diff] [blame] | 433 |  | 
 | 434 | #endif /* CONFIG_SPU_BASE */ | 
| Dwayne Grant McConnell | bf1ab97 | 2006-11-23 00:46:37 +0100 | [diff] [blame] | 435 |  | 
| Adrian Bunk | 178f8d7 | 2008-06-24 03:48:28 +1000 | [diff] [blame] | 436 | #endif /* __KERNEL */ | 
 | 437 |  | 
| Becky Bruce | a99eb2e | 2005-09-19 19:17:27 -0500 | [diff] [blame] | 438 | #endif /* _ASM_POWERPC_ELF_H */ |