diff options
| author | Nathan Sidwell <nathan@codesourcery.com> | 2005-12-12 14:16:41 +0300 |
|---|---|---|
| committer | Nathan Sidwell <nathan@codesourcery.com> | 2005-12-12 14:16:41 +0300 |
| commit | ad83f0cc13928b8d465e7bc39edb28666570dc18 (patch) | |
| tree | 3cc4fb0ac26e32a66b645e7055890a6640ab5946 /libgloss/mt/trap.S | |
| parent | 2193d02b4ddfc329e0817258093a40050b2d582a (diff) | |
Rename ms1 files to mt files (part 1 -- renames only)
Diffstat (limited to 'libgloss/mt/trap.S')
| -rw-r--r-- | libgloss/mt/trap.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libgloss/mt/trap.S b/libgloss/mt/trap.S new file mode 100644 index 000000000..9fca7204e --- /dev/null +++ b/libgloss/mt/trap.S @@ -0,0 +1,34 @@ +;; +;; The errno will be in r5 if r11 is -1. +;; + .text + .global __trap0 +__trap0: + ;; non-leaf function so need to create stack frame to + ;; store ra and fp + subi sp, sp, #16 + stw ra, sp, #12 + or r0, r0, r0 ;; nop + stw fp, sp, #8 + or fp, sp, sp + stw r5, sp, #4 + or r0, r0, r0 ;; nop + stw r6, sp, #0 + addi r6, r0, #$-1 + si r14 + or r0, r0, r0 ;; nop + brne r11, r6, .L0 + ldui r6, #%hi16(errno) + addui r6, r6, #%lo16(errno) + stw r5, r6, #0 + or r0, r0, r0 ;; nop +.L0: + ldw r6, sp, #0 + or r0, r0, r0 ;; nop + ldw r5, sp, #4 + or r0, r0, r0 ;; nop + ldw ra, sp, #12 + or r0, r0, r0 ;; nop + ldw fp, sp, #8 + jal r0, r14 + addi sp, sp, #16 |