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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | #ifndef __ASMCRIS_ELF_H #define __ASMCRIS_ELF_H /* * ELF register definitions.. */ #include <asm/ptrace.h> typedef unsigned long elf_greg_t; /* Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is thus exposed to user-space. */ #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) typedef elf_greg_t elf_gregset_t[ELF_NGREG]; /* A placeholder; CRIS does not have any fp regs. */ typedef unsigned long elf_fpregset_t; /* * This is used to ensure we don't load something for the wrong architecture. */ #define elf_check_arch(x) ( (x)->e_machine == EM_CRIS ) /* * These are used to set parameters in the core dumps. */ #define ELF_CLASS ELFCLASS32 #define ELF_DATA ELFDATA2LSB; #define ELF_ARCH EM_CRIS /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts (a register; assume first param register for CRIS) contains 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. A value of 0 tells we have no such handler. */ /* Explicitly set registers to 0 to increase determinism. */ #define ELF_PLAT_INIT(_r) do { \ (_r)->r13 = 0; (_r)->r12 = 0; (_r)->r11 = 0; (_r)->r10 = 0; \ (_r)->r9 = 0; (_r)->r8 = 0; (_r)->r7 = 0; (_r)->r6 = 0; \ (_r)->r5 = 0; (_r)->r4 = 0; (_r)->r3 = 0; (_r)->r2 = 0; \ (_r)->r1 = 0; (_r)->r0 = 0; (_r)->mof = 0; (_r)->srp = 0; \ } while (0) #define USE_ELF_CORE_DUMP /* The additional layer below is because the stack pointer is missing in the pt_regs struct, but needed in a core dump. pr_reg is a elf_gregset_t, and should be filled in according to the layout of the user_regs_struct struct; regs is a pt_regs struct. We dump all registers, though several are obviously unnecessary. That way there's less need for intelligence at the receiving end (i.e. gdb). */ #define ELF_CORE_COPY_REGS(pr_reg, regs) \ pr_reg[0] = regs->r0; \ pr_reg[1] = regs->r1; \ pr_reg[2] = regs->r2; \ pr_reg[3] = regs->r3; \ pr_reg[4] = regs->r4; \ pr_reg[5] = regs->r5; \ pr_reg[6] = regs->r6; \ pr_reg[7] = regs->r7; \ pr_reg[8] = regs->r8; \ pr_reg[9] = regs->r9; \ pr_reg[10] = regs->r10; \ pr_reg[11] = regs->r11; \ pr_reg[12] = regs->r12; \ pr_reg[13] = regs->r13; \ pr_reg[14] = rdusp(); /* sp */ \ pr_reg[15] = regs->irp; /* pc */ \ pr_reg[16] = 0; /* p0 */ \ pr_reg[17] = rdvr(); /* vr */ \ pr_reg[18] = 0; /* p2 */ \ pr_reg[19] = 0; /* p3 */ \ pr_reg[20] = 0; /* p4 */ \ pr_reg[21] = (regs->dccr & 0xffff); /* ccr */ \ pr_reg[22] = 0; /* p6 */ \ pr_reg[23] = regs->mof; /* mof */ \ pr_reg[24] = 0; /* p8 */ \ pr_reg[25] = 0; /* ibr */ \ pr_reg[26] = 0; /* irp */ \ pr_reg[27] = regs->srp; /* srp */ \ pr_reg[28] = 0; /* bar */ \ pr_reg[29] = regs->dccr; /* dccr */ \ pr_reg[30] = 0; /* brp */ \ pr_reg[31] = rdusp(); /* usp */ \ pr_reg[32] = 0; /* csrinstr */ \ pr_reg[33] = 0; /* csraddr */ \ pr_reg[34] = 0; /* csrdata */ #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 (2 * TASK_SIZE / 3) /* 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 (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. */ #define ELF_PLATFORM (NULL) #ifdef __KERNEL__ #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) #endif #endif |