diff options
Diffstat (limited to 'libc/sysdeps/linux/arm/mmap64.S')
| -rw-r--r-- | libc/sysdeps/linux/arm/mmap64.S | 41 |
1 files changed, 16 insertions, 25 deletions
diff --git a/libc/sysdeps/linux/arm/mmap64.S b/libc/sysdeps/linux/arm/mmap64.S index 0da4afbb0..63b02f9df 100644 --- a/libc/sysdeps/linux/arm/mmap64.S +++ b/libc/sysdeps/linux/arm/mmap64.S @@ -16,20 +16,18 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#define _ERRNO_H 1 #include <features.h> +#define _ERRNO_H #include <bits/errno.h> #include <sys/syscall.h> #if defined __UCLIBC_HAS_LFS__ && defined __NR_mmap2 - - /* The mmap2 system call takes six arguments, all in registers. */ - .text - .global mmap64; - .type mmap64,%function - .align 4; - +/* The mmap2 system call takes six arguments, all in registers. */ +.text +.global mmap64 +.type mmap64,%function +.align 4 mmap64: stmfd sp!, {r4, r5, lr} ldr r5, [sp, $16] @@ -47,33 +45,26 @@ mmap64: ldmccfd sp!, {r4, r5, pc} cmn r0, $ENOSYS ldmnefd sp!, {r4, r5, lr} - bne __syscall_error (PLT) + bne __error /* The current kernel does not support mmap2. Fall back to plain mmap if the offset is small enough. */ ldr r5, [sp, $20] mov r0, ip @ first arg was clobbered teq r5, $0 ldmeqfd sp!, {r4, r5, lr} - beq mmap (PLT) +#ifdef __PIC__ + beq mmap(PLT) +#else + beq mmap +#endif .Linval: mov r0, $-EINVAL ldmfd sp!, {r4, r5, lr} - b __syscall_error (PLT) - -__syscall_error: - /* Looks like the syscall choked -- set errno */ - ldr r3, .L4 - /* Calculate the - of the syscall result, in case we need it */ - rsb r2, r0, $0 - - /* errno = -result */ - str r2, [r9,r3] + b __error - /* return -1 */ - mvn r0, $0 - mov pc, lr -.size mmap64,.-mmap64; +__error: + b __syscall_error -.L4: .word errno +.size mmap64,.-mmap64 #endif |