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/arch/alpha/include/asm/elf.h

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C++ Header | 164 lines | 90 code | 32 blank | 42 comment | 4 complexity | 24731460ac842eeae1b56ce4563eebd1 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
  1#ifndef __ASM_ALPHA_ELF_H
  2#define __ASM_ALPHA_ELF_H
  3
  4#include <asm/auxvec.h>
  5
  6/* Special values for the st_other field in the symbol table.  */
  7
  8#define STO_ALPHA_NOPV		0x80
  9#define STO_ALPHA_STD_GPLOAD	0x88
 10
 11/*
 12 * Alpha ELF relocation types
 13 */
 14#define R_ALPHA_NONE            0       /* No reloc */
 15#define R_ALPHA_REFLONG         1       /* Direct 32 bit */
 16#define R_ALPHA_REFQUAD         2       /* Direct 64 bit */
 17#define R_ALPHA_GPREL32         3       /* GP relative 32 bit */
 18#define R_ALPHA_LITERAL         4       /* GP relative 16 bit w/optimization */
 19#define R_ALPHA_LITUSE          5       /* Optimization hint for LITERAL */
 20#define R_ALPHA_GPDISP          6       /* Add displacement to GP */
 21#define R_ALPHA_BRADDR          7       /* PC+4 relative 23 bit shifted */
 22#define R_ALPHA_HINT            8       /* PC+4 relative 16 bit shifted */
 23#define R_ALPHA_SREL16          9       /* PC relative 16 bit */
 24#define R_ALPHA_SREL32          10      /* PC relative 32 bit */
 25#define R_ALPHA_SREL64          11      /* PC relative 64 bit */
 26#define R_ALPHA_GPRELHIGH       17      /* GP relative 32 bit, high 16 bits */
 27#define R_ALPHA_GPRELLOW        18      /* GP relative 32 bit, low 16 bits */
 28#define R_ALPHA_GPREL16         19      /* GP relative 16 bit */
 29#define R_ALPHA_COPY            24      /* Copy symbol at runtime */
 30#define R_ALPHA_GLOB_DAT        25      /* Create GOT entry */
 31#define R_ALPHA_JMP_SLOT        26      /* Create PLT entry */
 32#define R_ALPHA_RELATIVE        27      /* Adjust by program base */
 33#define R_ALPHA_BRSGP		28
 34#define R_ALPHA_TLSGD           29
 35#define R_ALPHA_TLS_LDM         30
 36#define R_ALPHA_DTPMOD64        31
 37#define R_ALPHA_GOTDTPREL       32
 38#define R_ALPHA_DTPREL64        33
 39#define R_ALPHA_DTPRELHI        34
 40#define R_ALPHA_DTPRELLO        35
 41#define R_ALPHA_DTPREL16        36
 42#define R_ALPHA_GOTTPREL        37
 43#define R_ALPHA_TPREL64         38
 44#define R_ALPHA_TPRELHI         39
 45#define R_ALPHA_TPRELLO         40
 46#define R_ALPHA_TPREL16         41
 47
 48#define SHF_ALPHA_GPREL		0x10000000
 49
 50/* Legal values for e_flags field of Elf64_Ehdr.  */
 51
 52#define EF_ALPHA_32BIT		1	/* All addresses are below 2GB */
 53
 54/*
 55 * ELF register definitions..
 56 */
 57
 58/*
 59 * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long.
 60 * I have no idea why that is so.  For now, we just leave it at 33
 61 * (32 general regs + processor status word). 
 62 */
 63#define ELF_NGREG	33
 64#define ELF_NFPREG	32
 65
 66typedef unsigned long elf_greg_t;
 67typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 68
 69typedef double elf_fpreg_t;
 70typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 71
 72/*
 73 * This is used to ensure we don't load something for the wrong architecture.
 74 */
 75#define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
 76
 77/*
 78 * These are used to set parameters in the core dumps.
 79 */
 80#define ELF_CLASS	ELFCLASS64
 81#define ELF_DATA	ELFDATA2LSB
 82#define ELF_ARCH	EM_ALPHA
 83
 84#define ELF_EXEC_PAGESIZE	8192
 85
 86/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 87   use of this is to invoke "./ld.so someprog" to test out a new version of
 88   the loader.  We need to make sure that it is out of the way of the program
 89   that it will "exec", and that there is sufficient room for the brk.  */
 90
 91#define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
 92
 93/* $0 is set by ld.so to a pointer to a function which might be 
 94   registered using atexit.  This provides a mean for the dynamic
 95   linker to call DT_FINI functions for shared libraries that have
 96   been loaded before the code runs.
 97
 98   So that we can use the same startup file with static executables,
 99   we start programs with a value of 0 to indicate that there is no
100   such function.  */
101
102#define ELF_PLAT_INIT(_r, load_addr)	_r->r0 = 0
103
104/* The registers are layed out in pt_regs for PAL and syscall
105   convenience.  Re-order them for the linear elf_gregset_t.  */
106
107struct pt_regs;
108struct thread_info;
109struct task_struct;
110extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt,
111			    struct thread_info *ti);
112#define ELF_CORE_COPY_REGS(DEST, REGS) \
113	dump_elf_thread(DEST, REGS, current_thread_info());
114
115/* Similar, but for a thread other than current.  */
116
117extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task);
118#define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \
119	dump_elf_task(*(DEST), TASK)
120
121/* Similar, but for the FP registers.  */
122
123extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task);
124#define ELF_CORE_COPY_FPREGS(TASK, DEST) \
125	dump_elf_task_fp(*(DEST), TASK)
126
127/* This yields a mask that user programs can use to figure out what
128   instruction set this CPU supports.  This is trivial on Alpha, 
129   but not so on other machines. */
130
131#define ELF_HWCAP  (~amask(-1))
132
133/* This yields a string that ld.so will use to load implementation
134   specific libraries for optimization.  This is more specific in
135   intent than poking at uname or /proc/cpuinfo.  */
136
137#define ELF_PLATFORM				\
138({						\
139	enum implver_enum i_ = implver();	\
140	( i_ == IMPLVER_EV4 ? "ev4"		\
141	: i_ == IMPLVER_EV5			\
142	  ? (amask(AMASK_BWX) ? "ev5" : "ev56")	\
143	: amask (AMASK_CIX) ? "ev6" : "ev67");	\
144})
145
146#define SET_PERSONALITY(EX)					\
147	set_personality(((EX).e_flags & EF_ALPHA_32BIT)		\
148	   ? PER_LINUX_32BIT : PER_LINUX)
149
150extern int alpha_l1i_cacheshape;
151extern int alpha_l1d_cacheshape;
152extern int alpha_l2_cacheshape;
153extern int alpha_l3_cacheshape;
154
155/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
156#define ARCH_DLINFO						\
157  do {								\
158    NEW_AUX_ENT(AT_L1I_CACHESHAPE, alpha_l1i_cacheshape);	\
159    NEW_AUX_ENT(AT_L1D_CACHESHAPE, alpha_l1d_cacheshape);	\
160    NEW_AUX_ENT(AT_L2_CACHESHAPE, alpha_l2_cacheshape);		\
161    NEW_AUX_ENT(AT_L3_CACHESHAPE, alpha_l3_cacheshape);		\
162  } while (0)
163
164#endif /* __ASM_ALPHA_ELF_H */