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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 int *) &(ARGS)))
- /* Get the address of the Global offset table. This must be absolute,
- not relative. */
- #define GET_GOT(X) __asm__ ("movel %%a5,%0" : "=g" (X))
- /* Initialization sequence for a GOT. */
- #define INIT_GOT(GOT_BASE,MODULE) \
- { \
- GOT_BASE[2] = (int) _dl_linux_resolve; \
- GOT_BASE[1] = (int) (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_68K_8: \
- *(char *) (REL) = (SYMBOL) + (RELP)->r_addend; \
- break; \
- case R_68K_16: \
- *(short *) (REL) = (SYMBOL) + (RELP)->r_addend; \
- break; \
- case R_68K_32: \
- *(REL) = (SYMBOL) + (RELP)->r_addend; \
- break; \
- case R_68K_PC8: \
- *(char *) (REL) = ((SYMBOL) + (RELP)->r_addend \
- - (unsigned int) (REL)); \
- break; \
- case R_68K_PC16: \
- *(short *) (REL) = ((SYMBOL) + (RELP)->r_addend \
- - (unsigned int) (REL)); \
- break; \
- case R_68K_PC32: \
- *(REL) = ((SYMBOL) + (RELP)->r_addend \
- - (unsigned int) (REL)); \
- break; \
- case R_68K_GLOB_DAT: \
- case R_68K_JMP_SLOT: \
- *(REL) = (SYMBOL); \
- break; \
- case R_68K_RELATIVE: /* Compatibility kludge */ \
- *(REL) = ((unsigned int) (LOAD) + ((RELP)->r_addend ? : *(REL))); \
- break; \
- default: \
- _dl_exit (1); \
- }
- /* Transfer control to the user's application, once the dynamic loader
- is done. */
- #define START() \
- __asm__ volatile ("unlk %%a6\n\t" \
- "jmp %0@" \
- : : "a" (_dl_elf_main));
- /* Here we define the magic numbers that this dynamic loader should accept */
- #define MAGIC1 EM_68K
- #undef MAGIC2
- /* Used for error messages */
- #define ELF_TARGET "m68k"
- struct elf_resolve;
- extern unsigned int _dl_linux_resolver (int, int, struct elf_resolve *, int);
- /* Define this because we do not want to call .udiv in the library.
- Not needed for m68k. */
- #define do_rem(result, n, base) ((result) = (n) % (base))
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