diff options
author | Eric Andersen <andersen@codepoet.org> | 2002-01-11 19:57:41 +0000 |
---|---|---|
committer | Eric Andersen <andersen@codepoet.org> | 2002-01-11 19:57:41 +0000 |
commit | ed865232d8289ade7587a74d9cf2c0ccb878887b (patch) | |
tree | 8e3e317beba7e54259b98be6628bc90dc8e8e6aa /ldso/ldso/powerpc | |
parent | f1429771e1b4d6a42fd06a315e1509d4a2e94e33 (diff) |
Rework naming for shared lib loader to avoid potential
nameing conflicts with std header files.
-Erik
Diffstat (limited to 'ldso/ldso/powerpc')
-rw-r--r-- | ldso/ldso/powerpc/elfinterp.c | 11 | ||||
-rw-r--r-- | ldso/ldso/powerpc/syscalls.h | 243 | ||||
-rw-r--r-- | ldso/ldso/powerpc/sysdep.h | 122 |
3 files changed, 4 insertions, 372 deletions
diff --git a/ldso/ldso/powerpc/elfinterp.c b/ldso/ldso/powerpc/elfinterp.c index db53e8f46..4da5d9d98 100644 --- a/ldso/ldso/powerpc/elfinterp.c +++ b/ldso/ldso/powerpc/elfinterp.c @@ -48,14 +48,11 @@ static char *_dl_reltypes[] = a more than adequate job of explaining everything required to get this working. */ -#include <sys/types.h> -#include <errno.h> -#include "sysdep.h" -#include <elf.h> #include "linuxelf.h" -#include "hash.h" -#include "syscall.h" -#include "string.h" +#include "ld_hash.h" +#include "ld_syscall.h" +#include "ld_string.h" +#include <errno.h> #ifdef DEBUG static void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index); diff --git a/ldso/ldso/powerpc/syscalls.h b/ldso/ldso/powerpc/syscalls.h deleted file mode 100644 index ae37aa822..000000000 --- a/ldso/ldso/powerpc/syscalls.h +++ /dev/null @@ -1,243 +0,0 @@ -#include <sys/types.h> - -/* - * This file contains the system call macros and syscall - * numbers used by the shared library loader. - */ - -#define __NR_exit 1 -#define __NR_read 3 -#define __NR_write 4 -#define __NR_open 5 -#define __NR_close 6 -#define __NR_getuid 24 -#define __NR_geteuid 49 -#define __NR_getgid 47 -#define __NR_getegid 50 -#define __NR_mmap 90 -#define __NR_munmap 91 -#define __NR_stat 106 -#define __NR_mprotect 125 - -/* Here are the macros which define how this platform makes - * system calls. This particular variant does _not_ set - * errno (note how it is disabled in __syscall_return) since - * these will get called before the errno symbol is dynamicly - * linked. */ - -#undef __syscall_return -#define __syscall_return(type) \ - return (__sc_err & 0x10000000 ? /*errno = __sc_ret,*/ __sc_ret = -1 : 0), \ - (type) __sc_ret - -#undef __syscall_clobbers -#define __syscall_clobbers \ - "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12" - -#undef _syscall0 -#define _syscall0(type,name) \ -type name(void) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - -#undef _syscall1 -#define _syscall1(type,name,type1,arg1) \ -type name(type1 arg1) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - \ - __sc_3 = (unsigned long) (arg1); \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - -#undef _syscall2 -#define _syscall2(type,name,type1,arg1,type2,arg2) \ -type name(type1 arg1, type2 arg2) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - register unsigned long __sc_4 __asm__ ("r4"); \ - \ - __sc_3 = (unsigned long) (arg1); \ - __sc_4 = (unsigned long) (arg2); \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0), \ - "r" (__sc_4) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - -#undef _syscall3 -#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ -type name(type1 arg1, type2 arg2, type3 arg3) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - register unsigned long __sc_4 __asm__ ("r4"); \ - register unsigned long __sc_5 __asm__ ("r5"); \ - \ - __sc_3 = (unsigned long) (arg1); \ - __sc_4 = (unsigned long) (arg2); \ - __sc_5 = (unsigned long) (arg3); \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0), \ - "r" (__sc_4), \ - "r" (__sc_5) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - -#undef _syscall4 -#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - register unsigned long __sc_4 __asm__ ("r4"); \ - register unsigned long __sc_5 __asm__ ("r5"); \ - register unsigned long __sc_6 __asm__ ("r6"); \ - \ - __sc_3 = (unsigned long) (arg1); \ - __sc_4 = (unsigned long) (arg2); \ - __sc_5 = (unsigned long) (arg3); \ - __sc_6 = (unsigned long) (arg4); \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0), \ - "r" (__sc_4), \ - "r" (__sc_5), \ - "r" (__sc_6) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - -#undef _syscall5 -#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - register unsigned long __sc_4 __asm__ ("r4"); \ - register unsigned long __sc_5 __asm__ ("r5"); \ - register unsigned long __sc_6 __asm__ ("r6"); \ - register unsigned long __sc_7 __asm__ ("r7"); \ - \ - __sc_3 = (unsigned long) (arg1); \ - __sc_4 = (unsigned long) (arg2); \ - __sc_5 = (unsigned long) (arg3); \ - __sc_6 = (unsigned long) (arg4); \ - __sc_7 = (unsigned long) (arg5); \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0), \ - "r" (__sc_4), \ - "r" (__sc_5), \ - "r" (__sc_6), \ - "r" (__sc_7) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - - -#undef _syscall6 -#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \ -{ \ - unsigned long __sc_ret, __sc_err; \ - { \ - register unsigned long __sc_0 __asm__ ("r0"); \ - register unsigned long __sc_3 __asm__ ("r3"); \ - register unsigned long __sc_4 __asm__ ("r4"); \ - register unsigned long __sc_5 __asm__ ("r5"); \ - register unsigned long __sc_6 __asm__ ("r6"); \ - register unsigned long __sc_7 __asm__ ("r7"); \ - register unsigned long __sc_8 __asm__ ("r8"); \ - \ - __sc_3 = (unsigned long) (arg1); \ - __sc_4 = (unsigned long) (arg2); \ - __sc_5 = (unsigned long) (arg3); \ - __sc_6 = (unsigned long) (arg4); \ - __sc_7 = (unsigned long) (arg5); \ - __sc_8 = (unsigned long) (arg6); \ - __sc_0 = __NR_##name; \ - __asm__ __volatile__ \ - ("sc \n\t" \ - "mfcr %1 " \ - : "=&r" (__sc_3), "=&r" (__sc_0) \ - : "0" (__sc_3), "1" (__sc_0), \ - "r" (__sc_4), \ - "r" (__sc_5), \ - "r" (__sc_6), \ - "r" (__sc_7), \ - "r" (__sc_8) \ - : __syscall_clobbers); \ - __sc_ret = __sc_3; \ - __sc_err = __sc_0; \ - } \ - __syscall_return (type); \ -} - - 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) |