diff options
Diffstat (limited to 'c/src/lib/libbsp/nios2/nios2_iss/start/crtnn.S')
| -rw-r--r-- | c/src/lib/libbsp/nios2/nios2_iss/start/crtnn.S | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/nios2/nios2_iss/start/crtnn.S b/c/src/lib/libbsp/nios2/nios2_iss/start/crtnn.S new file mode 100644 index 0000000000..ae805bc967 --- /dev/null +++ b/c/src/lib/libbsp/nios2/nios2_iss/start/crtnn.S @@ -0,0 +1,43 @@ +/* NIOS2 crtn.asm fix + * + * COPYRIGHT (c) 2005-2006 Kolja Waschk rtemsdev/ixo.de + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +/* Can't use the original crtn.asm from Altera because it doesn't + restore the stack pointer correctly (in 5.1b73, the stack pointer + is further decreased by 48 instead of increased). This is named + differently (crtnn instead crtn) to make sure it can be picked up + using custom gcc specs instead of gcc's crtn. - kawk */ + + .section .init + ldw ra, 44(sp) + ldw r23, 40(sp) + ldw r22, 36(sp) + ldw r21, 32(sp) + ldw r20, 28(sp) + ldw r19, 24(sp) + ldw r18, 20(sp) + ldw r17, 16(sp) + ldw r16, 12(sp) + ldw fp, 8(sp) + addi sp, sp, 48 + ret + + .section .fini + ldw ra, 44(sp) + ldw r23, 40(sp) + ldw r22, 36(sp) + ldw r21, 32(sp) + ldw r20, 28(sp) + ldw r19, 24(sp) + ldw r18, 20(sp) + ldw r17, 16(sp) + ldw r16, 12(sp) + ldw fp, 8(sp) + addi sp, sp, 48 + ret + |