diff options
Diffstat (limited to 'ldso/ldso/i386/dl-sysdep.h')
| -rw-r--r-- | ldso/ldso/i386/dl-sysdep.h | 66 |
1 files changed, 9 insertions, 57 deletions
diff --git a/ldso/ldso/i386/dl-sysdep.h b/ldso/ldso/i386/dl-sysdep.h index d7475d630..a92d89574 100644 --- a/ldso/ldso/i386/dl-sysdep.h +++ b/ldso/ldso/i386/dl-sysdep.h @@ -1,72 +1,24 @@ +/* vi: set sw=4 ts=4: */ /* * Various assmbly language/system dependent hacks that are required * so that we can minimize the amount of platform specific code. + * Copyright (C) 2000-2004 by Erik Andersen <andersen@codpoet.org> */ -/* - * Define this if the system uses RELOCA. - */ +/* 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 a GOT. - */ -#define INIT_GOT(GOT_BASE,MODULE) \ -do { \ - GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \ - GOT_BASE[1] = (unsigned long) MODULE; \ +/* Initialization sequence for the GOT. */ +#define INIT_GOT(GOT_BASE,MODULE) \ +do { \ + GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \ + GOT_BASE[1] = (unsigned long) MODULE; \ } while(0) -/* - * 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_386_32: \ - *REL += SYMBOL; \ - break; \ - case R_386_PC32: \ - *REL += SYMBOL - (unsigned long) REL; \ - break; \ - case R_386_GLOB_DAT: \ - case R_386_JMP_SLOT: \ - *REL = SYMBOL; \ - break; \ - case R_386_RELATIVE: \ - *REL += (unsigned long) LOAD; \ - break; \ - default: \ - _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() \ - __asm__ volatile ("leave\n\t" \ - "jmp *%%eax\n\t" \ - : "=a" (status) : "a" (_dl_elf_main)) - - - /* Here we define the magic numbers that this dynamic loader should accept */ - #define MAGIC1 EM_386 #undef MAGIC2 + /* Used for error messages */ #define ELF_TARGET "386" |