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/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
* will work as expected and cope with whatever platform specific wierdness is
* needed for this architecture. */
asm("" \
" .text\n" \
" .globl _dl_boot\n" \
"_dl_boot:\n" \
" mov r15, r4\n" \
" mov.l .L_dl_boot2, r0\n" \
" bsrf r0\n" \
" add #4, r4\n" \
".jmp_loc:\n" \
" jmp @r0\n" \
" mov #0, r4 !call _start with arg == 0\n" \
".L_dl_boot2:\n" \
" .long _dl_boot2-.jmp_loc\n" \
" .previous\n" \
);
#define DL_BOOT(X) static void __attribute__ ((unused)) _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)
/*
* 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_SH_REL32: \
*(REL) = (SYMBOL) + (RELP)->r_addend \
- (unsigned long)(REL); \
break; \
case R_SH_DIR32: \
case R_SH_GLOB_DAT: \
case R_SH_JMP_SLOT: \
*(REL) = (SYMBOL) + (RELP)->r_addend; \
break; \
case R_SH_RELATIVE: \
*(REL) = (LOAD) + (RELP)->r_addend; \
break; \
case R_SH_NONE: \
break; \
default: \
SEND_STDERR("BOOTSTRAP_RELOC: unhandled reloc type "); \
SEND_NUMBER_STDERR(ELF32_R_TYPE((RELP)->r_info), 1); \
SEND_STDERR("REL, SYMBOL, LOAD: "); \
SEND_ADDRESS_STDERR(REL, 0); \
SEND_STDERR(", "); \
SEND_ADDRESS_STDERR(SYMBOL, 0); \
SEND_STDERR(", "); \
SEND_ADDRESS_STDERR(LOAD, 1); \
_dl_exit(1); \
}
/*
* 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() return _dl_elf_main;
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