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- /*
- * Architecture specific code used by dl-startup.c
- */
- /* This code fixes the stack pointer so that the dynamic linker
- * can find argc, argv and auxvt (Auxillary Vector Table). */
- asm("" \
- " .text\n" \
- " .globl _dl_boot\n" \
- " .type _dl_boot,@function\n" \
- "_dl_boot:\n" \
- " move.d $sp,$r10\n" \
- " move.d $pc,$r9\n" \
- " add.d _dl_boot2 - ., $r9\n" \
- " jsr $r9\n" \
- );
- #define DL_BOOT(X) static void __attribute_used__ _dl_boot2 (X)
- /* Get a pointer to the argv array. On many platforms this can be just
- * the address if the first argument, on other platforms we need to
- * do something a little more subtle here. */
- #define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long *) ARGS)
- /* Handle relocation of the symbols in the dynamic loader. */
- static inline
- void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
- unsigned long symbol_addr, unsigned long load_addr, Elf32_Sym *symtab)
- {
- switch (ELF32_R_TYPE(rpnt->r_info)) {
- case R_CRIS_GLOB_DAT:
- case R_CRIS_JUMP_SLOT:
- case R_CRIS_32:
- *reloc_addr = symbol_addr;
- break;
- case R_CRIS_16_PCREL:
- *(short *) *reloc_addr = symbol_addr + rpnt->r_addend - *reloc_addr - 2;
- break;
- case R_CRIS_32_PCREL:
- *reloc_addr = symbol_addr + rpnt->r_addend - *reloc_addr - 4;
- break;
- case R_CRIS_NONE:
- break;
- case R_CRIS_RELATIVE:
- *reloc_addr = load_addr + rpnt->r_addend;
- break;
- default:
- _dl_exit(1);
- break;
- }
- }
- /* Transfer control to the user's application, once the dynamic loader is
- * done. This routine has to exit the current function, then call the
- * _dl_elf_main function. */
- #define START() __asm__ volatile ("moveq 0,$r8\n\t" \
- "move $r8,$srp\n\t" \
- "move.d %1,$sp\n\t" \
- "jump %0\n\t" \
- : : "r" (_dl_elf_main), "r" (args))
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