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- /*
- * Various assmbly language/system dependent hacks that are required
- * so that we can minimize the amount of platform specific code.
- */
- /*
- * Define this if the system uses RELOCA.
- */
- #define ELF_USES_RELOCA
- /*
- * 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)
- /*
- * Initialization sequence for a GOT.
- */
- #define INIT_GOT(GOT_BASE,MODULE) \
- { \
- GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
- GOT_BASE[1] = (unsigned long) (MODULE); \
- }
- /*
- * 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) \
- switch(ELF32_R_TYPE((RELP)->r_info)){ \
- case R_SH_REL32: \
- *(REL) += (RELP)->r_addend - (LOAD); \
- break; \
- case R_SH_DIR32: \
- *(REL) += (SYMBOL) + (RELP)->r_addend; \
- break; \
- case R_SH_RELATIVE: \
- *(REL) += (LOAD); \
- 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;
- /* Here we define the magic numbers that this dynamic loader should accept */
- #define MAGIC1 EM_SH
- #undef MAGIC2
- /* Used for error messages */
- #define ELF_TARGET "sh"
- struct elf_resolve;
- extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry);
- #define do_rem(result, n, base) result = (n % base)
- /* 4096 bytes alignment */
- #define PAGE_ALIGN 0xfffff000
- #define ADDR_ALIGN 0xfff
- #define OFFS_ALIGN 0x7ffff000
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