| #ifndef __ASM_ALPHA_ELF_H |
| #define __ASM_ALPHA_ELF_H |
| |
| /* |
| * ELF register definitions.. |
| */ |
| |
| /* |
| * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long. |
| * I have no idea why that is so. For now, we just leave it at 33 |
| * (32 general regs + processor status word). |
| */ |
| #define ELF_NGREG 33 |
| #define ELF_NFPREG 32 |
| |
| 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]; |
| |
| /* |
| * This is used to ensure we don't load something for the wrong architecture. |
| */ |
| #define elf_check_arch(x) ((x)->e_machine == EM_ALPHA) |
| |
| /* |
| * These are used to set parameters in the core dumps. |
| */ |
| #define ELF_CLASS ELFCLASS64 |
| #define ELF_DATA ELFDATA2LSB |
| #define ELF_ARCH EM_ALPHA |
| |
| #define USE_ELF_CORE_DUMP |
| #define ELF_EXEC_PAGESIZE 8192 |
| |
| /* 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 (TASK_UNMAPPED_BASE + 0x1000000) |
| |
| /* $0 is set by ld.so to a pointer to a function which might be |
| registered using atexit. This provides a mean for the dynamic |
| linker to call DT_FINI functions for shared libraries that have |
| been loaded before the code runs. |
| |
| So that we can use the same startup file with static executables, |
| we start programs with a value of 0 to indicate that there is no |
| such function. */ |
| |
| #define ELF_PLAT_INIT(_r, load_addr) _r->r0 = 0 |
| |
| #ifdef __KERNEL__ |
| /* The registers are layed out in pt_regs for PAL and syscall |
| convenience. Re-order them for the linear elf_gregset_t. */ |
| |
| extern void dump_elf_thread(elf_greg_t *, struct pt_regs *, |
| struct task_struct *); |
| #define ELF_CORE_COPY_REGS(DEST, REGS) \ |
| dump_elf_thread(DEST, REGS, current); |
| #endif /* __KERNEL__ */ |
| |
| /* This yields a mask that user programs can use to figure out what |
| instruction set this CPU supports. This is trivial on Alpha, |
| but not so on other machines. */ |
| |
| #define ELF_HWCAP (~amask(-1)) |
| |
| /* 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. */ |
| |
| #define ELF_PLATFORM \ |
| ({ \ |
| enum implver_enum i_ = implver(); \ |
| ( i_ == IMPLVER_EV4 ? "ev4" \ |
| : i_ == IMPLVER_EV5 \ |
| ? (amask(AMASK_BWX) ? "ev5" : "ev56") \ |
| : amask (AMASK_CIX) ? "ev6" : "ev67"); \ |
| }) |
| |
| #ifdef __KERNEL__ |
| #define SET_PERSONALITY(EX, IBCS2) \ |
| set_personality(((EX).e_flags & EF_ALPHA_32BIT) \ |
| ? PER_LINUX_32BIT : (IBCS2) ? PER_SVR4 : PER_LINUX) |
| #endif |
| |
| #endif |