diff options
Diffstat (limited to 'ldso/ldso/nds32/dl-startup.h')
| -rw-r--r-- | ldso/ldso/nds32/dl-startup.h | 94 |
1 files changed, 6 insertions, 88 deletions
diff --git a/ldso/ldso/nds32/dl-startup.h b/ldso/ldso/nds32/dl-startup.h index f700531ca..56892a2ba 100644 --- a/ldso/ldso/nds32/dl-startup.h +++ b/ldso/ldso/nds32/dl-startup.h @@ -6,68 +6,7 @@ /* Need bootstrap relocations */ #define ARCH_NEEDS_BOOTSTRAP_RELOCS -#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) -# define STACK_PUSH -# define STACK_POP -#else -# define STACK_PUSH "addi $sp, $sp, -24" -# define STACK_POP "addi $sp, $sp, 24" -#endif - -#ifdef __NDS32_N1213_43U1H__ -__asm__("\ - .text\n\ - .globl _start\n\ - .globl _dl_start\n\ - .globl _dl_start_user\n\ - .type _start,#function\n\ - .type _dl_start,#function\n\ - .type _dl_start_user,#function\n\ - .align 4\n\ - .pic\n\ -1:\n\ - ret\n\ -_start:\n\ - ! we are PIC code, so get global offset table\n\ - jal 1b\n\ - sethi $gp, HI20(_GLOBAL_OFFSET_TABLE_)\n\ - ori $gp, $gp, LO12(_GLOBAL_OFFSET_TABLE_+4)\n\ - add $gp, $lp, $gp\n\ -\n\ - ! at start time, all the args are on the stack\n\ - addi $r0, $sp, 0\n\ - ! adjust stack\n\ - !addi $sp, $sp, -24\n\ - "STACK_PUSH"\n\ - bal _dl_start@PLT\n\ - ! save user entry point in r6\n\ - addi $r6, $r0, 0\n\ - ! adjust sp and reload registers\n\ - !addi $sp, $sp, 24\n\ - "STACK_POP"\n\ -\n\ -_dl_start_user:\n\ -\n\ - ! See if we were run as a command with the executable file\n\ - ! name as an extra leading argument.\n\ - ! skip these arguments\n\ - l.w $r2, _dl_skip_args@GOTOFF ! args to skip\n\ - lwi $r0, [$sp+0] ! original argc\n\ - slli $r1, $r2, 2 ! offset for new sp\n\ - add $sp, $sp, $r1 ! adjust sp to skip args\n\ - sub $r0, $r0, $r2 ! set new argc\n\ - swi $r0, [$sp+0] ! save new argc\n\ -\n\ - ! load address of _dl_fini finalizer function\n\ - la $r5, _dl_fini@GOTOFF\n\ - ! jump to the user_s entry point\n\ - addi $r15, $r6, 0\n\ - jr $r15\n\ - .size _dl_start_user, . - _dl_start_user\n\ - .previous\n\ -"); -#else __asm__("\ .text\n\ .globl _start\n\ @@ -89,13 +28,11 @@ _start:\n\ addi $r0, $sp, 0\n\ ! adjust stack\n\ !addi $sp, $sp, -24\n\ - "STACK_PUSH"\n\ bal _dl_start@PLT\n\ ! save user entry point in r6\n\ addi $r6, $r0, 0\n\ ! adjust sp and reload registers\n\ !addi $sp, $sp, 24\n\ - "STACK_POP"\n\ \n\ _dl_start_user:\n\ ! See if we were run as a command with the executable file\n\ @@ -115,31 +52,12 @@ _dl_start_user:\n\ .size _dl_start_user, . - _dl_start_user\n\ .previous\n\ "); -#endif -#define COPY_UNALIGNED_WORD(swp, twp, align) \ - { \ - void *__s = (swp), *__t = (twp); \ - unsigned char *__s1 = __s, *__t1 = __t; \ - unsigned short *__s2 = __s, *__t2 = __t; \ - unsigned long *__s4 = __s, *__t4 = __t; \ - switch ((align)) \ - { \ - case 0: \ - *__t4 = *__s4; \ - break; \ - case 2: \ - *__t2++ = *__s2++; \ - *__t2 = *__s2; \ - break; \ - default: \ - *__t1++ = *__s1++; \ - *__t1++ = *__s1++; \ - *__t1++ = *__s1++; \ - *__t1 = *__s1; \ - break; \ - } \ - } +#define COPY_UNALIGNED_WORD(swp, twp) \ +{ \ + __typeof (swp) __tmp = __builtin_nds32_unaligned_load_w ((unsigned int*)&swp); \ + __builtin_nds32_unaligned_store_w ((unsigned int *)twp, __tmp); \ +} /* 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 @@ -162,7 +80,7 @@ void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr, break; case R_NDS32_32_RELA: value = symbol_addr + rpnt->r_addend; - COPY_UNALIGNED_WORD (&value, reloc_addr, (int) reloc_addr & 3); + COPY_UNALIGNED_WORD (value, reloc_addr); break; #undef COPY_UNALIGNED_WORD case R_NDS32_RELATIVE: |