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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). */
#ifdef __arch_v32
asm("" \
" .text\n" \
" .globl _start\n" \
" .type _start,@function\n" \
"_start:\n" \
" move.d $sp,$r10\n" \
" lapc _dl_start,$r9\n" \
" jsr $r9\n" \
" nop\n" \
" moveq 0,$r8\n" \
" jump $r10\n" \
" move $r8,$srp\n" \
" .size _start,.-_start\n" \
" .previous\n" \
);
#else
asm("" \
" .text\n" \
" .globl _start\n" \
" .type _start,@function\n" \
"_start:\n" \
" move.d $sp,$r10\n" \
" move.d $pc,$r9\n" \
" add.d _dl_start - ., $r9\n" \
" jsr $r9\n" \
" moveq 0,$r8\n" \
" move $r8,$srp\n" \
" jump $r10\n" \
" .size _start,.-_start\n" \
" .previous\n" \
);
#endif /* __arch_v32 */
/* 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)+1)
/* We can't call functions earlier in the dl startup process */
#define NO_FUNCS_BEFORE_BOOTSTRAP
/* 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;
}
}
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