diff options
Diffstat (limited to 'libc-top-half/musl/src/thread/mipsn32/clone.s')
-rw-r--r-- | libc-top-half/musl/src/thread/mipsn32/clone.s | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/thread/mipsn32/clone.s b/libc-top-half/musl/src/thread/mipsn32/clone.s new file mode 100644 index 0000000..4d3c8c7 --- /dev/null +++ b/libc-top-half/musl/src/thread/mipsn32/clone.s @@ -0,0 +1,34 @@ +.set noreorder +.global __clone +.hidden __clone +.type __clone,@function +__clone: + # Save function pointer and argument pointer on new thread stack + and $5, $5, -16 # aligning stack to double word + subu $5, $5, 16 + sw $4, 0($5) # save function pointer + sw $7, 4($5) # save argument pointer + + # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid) + # sys_clone(u64 flags, u64 ustack_base, u64 parent_tidptr, u64 child_tidptr, u64 tls) + move $4, $6 + move $6, $8 + move $7, $9 + move $8, $10 + li $2, 6055 + syscall + beq $7, $0, 1f + nop + jr $ra + subu $2, $0, $2 +1: beq $2, $0, 1f + nop + jr $ra + nop +1: lw $25, 0($sp) # function pointer + lw $4, 4($sp) # argument pointer + jalr $25 # call the user's function + nop + move $4, $2 + li $2, 6058 + syscall |