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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.
*/
#undef 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 the application GOT.
*/
#define INIT_GOT(GOT_BASE,MODULE) _dl_init_got(GOT_BASE,MODULE)
/*
* Here is a macro to perform the GOT relocation. This is only
* used when bootstrapping the dynamic loader.
*/
#define PERFORM_BOOTSTRAP_GOT(got) \
do { \
Elf32_Sym *sym; \
unsigned long i; \
\
/* Add load address displacement to all local GOT entries */ \
i = 2; \
while (i < mips_local_gotno) \
got[i++] += load_addr; \
\
/* Handle global GOT entries */ \
got += mips_local_gotno; \
sym = (Elf32_Sym *) (tpnt->dynamic_info[DT_SYMTAB] + \
load_addr) + mips_gotsym; \
i = mips_symtabno - mips_gotsym; \
\
while (i--) { \
if (sym->st_shndx == SHN_UNDEF || \
sym->st_shndx == SHN_COMMON) \
*got = load_addr + sym->st_value; \
else if (ELF32_ST_TYPE(sym->st_info) == STT_FUNC && \
*got != sym->st_value) \
*got += load_addr; \
else if (ELF32_ST_TYPE(sym->st_info) == STT_SECTION) { \
if (sym->st_other == 0) \
*got += load_addr; \
} \
else \
*got = load_addr + sym->st_value; \
\
got++; \
sym++; \
} \
} while (0)
/*
* Here is a macro to perform a relocation. This is only used when
* bootstrapping the dynamic loader.
*/
#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD) \
switch(ELF32_R_TYPE((RELP)->r_info)) { \
case R_MIPS_REL32: \
if (symtab_index) { \
if (symtab_index < mips_gotsym) \
*REL += SYMBOL + LOAD; \
} \
else { \
*REL += LOAD; \
} \
break; \
case R_MIPS_NONE: \
break; \
default: \
SEND_STDERR("Aiieeee!"); \
_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 (void) _dl_elf_main;
/* Here we define the magic numbers that this dynamic loader should accept */
#define MAGIC1 EM_MIPS
#define MAGIC2 EM_MIPS_RS3_LE
/* Used for error messages */
#define ELF_TARGET "MIPS"
struct elf_resolve;
extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt,
int reloc_entry);
void _dl_init_got(unsigned long *got, struct elf_resolve *tpnt);
#define do_rem(result, n, base) result = (n % base)
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