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[/] [or1k/] [trunk/] [linux/] [uClibc/] [ldso/] [ldso/] [cris/] [ld_sysdep.h] - Rev 1765
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/* CRIS can never use Elf32_Rel relocations. */ #define ELF_USES_RELOCA /* * Get a pointer to the argv array. On many platforms this can be just * the address if the first argument, on other platforms we need to * do something a little more subtle here. */ #define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long *) ARGS) /* * Initialization sequence for a GOT. */ #define INIT_GOT(GOT_BASE,MODULE) \ { \ GOT_BASE[1] = (unsigned long) MODULE; \ GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \ } /* * Here is a macro to perform a relocation. This is only used when * bootstrapping the dynamic loader. RELP is the relocation that we * are performing, REL is the pointer to the address we are relocating. * SYMBOL is the symbol involved in the relocation, and LOAD is the * load address. */ #define PERFORM_BOOTSTRAP_RELOC(RELP, REL, SYMBOL, LOAD, SYMTAB) \ switch (ELF32_R_TYPE((RELP)->r_info)) { \ case R_CRIS_GLOB_DAT: \ case R_CRIS_JUMP_SLOT: \ case R_CRIS_32: \ *REL = SYMBOL; \ break; \ case R_CRIS_16_PCREL: \ *(short *) *REL = SYMBOL + (RELP)->r_addend - *REL - 2; \ break; \ case R_CRIS_32_PCREL: \ *REL = SYMBOL + (RELP)->r_addend - *REL - 4; \ break; \ case R_CRIS_NONE: \ break; \ case R_CRIS_RELATIVE: \ *REL = (unsigned long) LOAD + (RELP)->r_addend; \ break; \ default: \ _dl_exit(1); \ break; \ } /* * Transfer control to the user's application once the dynamic loader * is done. This routine has to exit the current function, then call * _dl_elf_main. */ #define START() __asm__ volatile ("moveq 0,$r8\n\t" \ "move $r8,$srp\n\t" \ "move.d %1,$sp\n\t" \ "jump %0\n\t" \ : : "r" (_dl_elf_main), "r" (args)) /* Defined some magic numbers that this ld.so should accept. */ #define MAGIC1 EM_CRIS #undef MAGIC2 #define ELF_TARGET "CRIS" struct elf_resolve; extern unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry); /* Cheap modulo implementation, taken from arm/ld_sysdep.h. */ static inline unsigned long cris_mod(unsigned long m, unsigned long p) { unsigned long i, t, inc; i = p; t = 0; while (!(i & (1 << 31))) { i <<= 1; t++; } t--; for (inc = t; inc > 2; inc--) { i = p << inc; if (i & (1 << 31)) break; while (m >= i) { m -= i; i <<= 1; if (i & (1 << 31)) break; if (i < p) break; } } while (m >= p) m -= p; return m; } #define do_rem(result, n, base) result = cris_mod(n, base); /* 8192 bytes alignment */ #define PAGE_ALIGN 0xffffe000 #define ADDR_ALIGN 0x1fff #define OFFS_ALIGN 0xffffe000