diff options
Diffstat (limited to 'ldso/ldso/arm/sysdep.h')
-rw-r--r-- | ldso/ldso/arm/sysdep.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/ldso/ldso/arm/sysdep.h b/ldso/ldso/arm/sysdep.h deleted file mode 100644 index b3d430519..000000000 --- a/ldso/ldso/arm/sysdep.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * 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 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_ARM_ABS32: \ - *REL += SYMBOL; \ - break; \ - case R_ARM_PC24: \ - { \ - unsigned long newval, topbits; \ - long addend=*REL & 0x00ffffff; \ - if(addend & 0x00800000) \ - addend|=0xff000000; \ - newval=SYMBOL- ((unsigned long)REL) + (addend<<2); \ - topbits=newval & 0xfe000000; \ - if (topbits != 0xfe000000 && topbits != 0x00000000) {/* \ - newval=fix_bad_pc24(REL,value) - \ - ((unsigned long)REL) + (addend << 2); \ - topbits=newval & 0xfe000000; \ - if(topbits != 0xfe000000 && topbits != 0x00000000)*/ \ - _dl_exit(1); \ - } \ - newval>>=2; \ - SYMBOL= (*REL & 0xff000000)|(newval & 0x00ffffff); \ - *REL=SYMBOL; \ - } \ - break; \ - case R_ARM_GLOB_DAT: \ - case R_ARM_JUMP_SLOT: \ - *REL = SYMBOL; \ - break; \ - case R_ARM_RELATIVE: \ - *REL += (unsigned long) LOAD; \ - break; \ - case R_ARM_NONE: \ - 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() return _dl_elf_main; - - - -/* Here we define the magic numbers that this dynamic loader should accept */ - -#define MAGIC1 EM_ARM -#undef MAGIC2 -/* Used for error messages */ -#define ELF_TARGET "ARM" - -struct elf_resolve; -extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry); - -static inline unsigned long arm_modulus(unsigned long m, unsigned long p) { - unsigned long i,t,inc; - i=p; t=0; - while(!(i&(1<<31))) { - i<<=1; - t++; - } - t--; - for(inc=t;inc>2;inc--) { - i=p<<inc; - if(i&(1<<31)) - break; - while(m>=i) { - m-=i; - i<<=1; - if(i&(1<<31)) - break; - if(i<p) - break; - } - } - while(m>=p) { - m-=p; - } - return m; -} - -#define do_rem(result, n, base) result=arm_modulus(n,base); |