diff options
Diffstat (limited to 'ldso/ldso/sh/dl-startup.h')
| -rw-r--r-- | ldso/ldso/sh/dl-startup.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/ldso/ldso/sh/dl-startup.h b/ldso/ldso/sh/dl-startup.h index d1ca6d985..0a41e36d6 100644 --- a/ldso/ldso/sh/dl-startup.h +++ b/ldso/ldso/sh/dl-startup.h @@ -19,3 +19,57 @@ asm("" \ ); #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; + + + + |