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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(
- " .globl _start\n"
- " .type _start,@function\n"
- "_start:\n"
- " mov r15, r4\n"
- " mov.l .L_dl_start, 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_start:\n"
- " .long _dl_start-.jmp_loc\n"
- " .size _start,.-_start\n"
- " .previous\n"
- );
- /*
- * 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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