diff options
Diffstat (limited to 'ldso/ldso/powerpc/sysdep.h')
| -rw-r--r-- | ldso/ldso/powerpc/sysdep.h | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/ldso/ldso/powerpc/sysdep.h b/ldso/ldso/powerpc/sysdep.h deleted file mode 100644 index 3f4db4682..000000000 --- a/ldso/ldso/powerpc/sysdep.h +++ /dev/null @@ -1,122 +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. - */ -#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)+1) - -/* - * Initialization sequence for a GOT. - */ -#define INIT_GOT(GOT_BASE,MODULE) _dl_init_got(GOT_BASE,MODULE) - -/* Stuff for the PLT. */ -#define PLT_INITIAL_ENTRY_WORDS 18 -#define PLT_LONGBRANCH_ENTRY_WORDS 0 -#define PLT_TRAMPOLINE_ENTRY_WORDS 6 -#define PLT_DOUBLE_SIZE (1<<13) -#define PLT_ENTRY_START_WORDS(entry_number) \ - (PLT_INITIAL_ENTRY_WORDS + (entry_number)*2 \ - + ((entry_number) > PLT_DOUBLE_SIZE \ - ? ((entry_number) - PLT_DOUBLE_SIZE)*2 \ - : 0)) -#define PLT_DATA_START_WORDS(num_entries) PLT_ENTRY_START_WORDS(num_entries) - -/* Macros to build PowerPC opcode words. */ -#define OPCODE_ADDI(rd,ra,simm) \ - (0x38000000 | (rd) << 21 | (ra) << 16 | ((simm) & 0xffff)) -#define OPCODE_ADDIS(rd,ra,simm) \ - (0x3c000000 | (rd) << 21 | (ra) << 16 | ((simm) & 0xffff)) -#define OPCODE_ADD(rd,ra,rb) \ - (0x7c000214 | (rd) << 21 | (ra) << 16 | (rb) << 11) -#define OPCODE_B(target) (0x48000000 | ((target) & 0x03fffffc)) -#define OPCODE_BA(target) (0x48000002 | ((target) & 0x03fffffc)) -#define OPCODE_BCTR() 0x4e800420 -#define OPCODE_LWZ(rd,d,ra) \ - (0x80000000 | (rd) << 21 | (ra) << 16 | ((d) & 0xffff)) -#define OPCODE_LWZU(rd,d,ra) \ - (0x84000000 | (rd) << 21 | (ra) << 16 | ((d) & 0xffff)) -#define OPCODE_MTCTR(rd) (0x7C0903A6 | (rd) << 21) -#define OPCODE_RLWINM(ra,rs,sh,mb,me) \ - (0x54000000 | (rs) << 21 | (ra) << 16 | (sh) << 11 | (mb) << 6 | (me) << 1) - -#define OPCODE_LI(rd,simm) OPCODE_ADDI(rd,0,simm) -#define OPCODE_ADDIS_HI(rd,ra,value) \ - OPCODE_ADDIS(rd,ra,((value) + 0x8000) >> 16) -#define OPCODE_LIS_HI(rd,value) OPCODE_ADDIS_HI(rd,0,value) -#define OPCODE_SLWI(ra,rs,sh) OPCODE_RLWINM(ra,rs,sh,0,31-sh) - - -#define PPC_DCBST(where) asm volatile ("dcbst 0,%0" : : "r"(where) : "memory") -#define PPC_SYNC asm volatile ("sync" : : : "memory") -#define PPC_ISYNC asm volatile ("sync; isync" : : : "memory") -#define PPC_ICBI(where) asm volatile ("icbi 0,%0" : : "r"(where) : "memory") -#define PPC_DIE asm volatile ("tweq 0,0") - -/* - * 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. - */ -// finaladdr = LOAD ? -#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD) \ - {int type=ELF32_R_TYPE((RELP)->r_info); \ - if(type==R_PPC_NONE){ \ - }else if(type==R_PPC_ADDR32){ \ - *REL += (SYMBOL); \ - }else if(type==R_PPC_RELATIVE){ \ - *REL = (Elf32_Word)(LOAD) + (RELP)->r_addend; \ - }else if(type==R_PPC_REL24){ \ - Elf32_Sword delta = (Elf32_Word)(SYMBOL) - (Elf32_Word)(REL); \ - *REL &= 0xfc000003; \ - *REL |= (delta & 0x03fffffc); \ - }else if(type==R_PPC_JMP_SLOT){ \ - Elf32_Sword delta = (Elf32_Word)(SYMBOL) - (Elf32_Word)(REL); \ - /*if (delta << 6 >> 6 != delta)_dl_exit(99);*/ \ - *REL = OPCODE_B(delta); \ - }else{ \ - _dl_exit(100+ELF32_R_TYPE((RELP)->r_info)); \ - } \ -/*hexprint(*REL);*/ \ - PPC_DCBST(REL); PPC_SYNC; PPC_ICBI(REL); \ - } - -/* - * 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 ( \ - "addi 1,%1,0\n\t" \ - "mtlr %0\n\t" \ - "blrl\n\t" \ - : : "r" (_dl_elf_main), "r" (args)) - - - -/* Here we define the magic numbers that this dynamic loader should accept */ - -#define MAGIC1 EM_PPC -#undef MAGIC2 -/* Used for error messages */ -#define ELF_TARGET "powerpc" - -struct elf_resolve; -extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry); -void _dl_init_got(unsigned long *lpnt,struct elf_resolve *tpnt); - - -#define do_rem(result, n, base) result = (n % base) |