first attempt at making threads work on mips

diff --git a/src/thread/mips/__unmapself.s b/src/thread/mips/__unmapself.s
new file mode 100644 (file)
index 0000000..9aa0371
--- /dev/null
+++ b/src/thread/mips/__unmapself.s
@@ -0,0 +1,9 @@
+.set noreorder
+.global __unmapself
+.type   __unmapself,@function
+__unmapself:
+       li $2, 4091
+       syscall
+       li $4, 0
+       li $2, 4001
+       syscall

diff --git a/src/thread/mips/clone.s b/src/thread/mips/clone.s
new file mode 100644 (file)
index 0000000..09a1a83
--- /dev/null
+++ b/src/thread/mips/clone.s
@@ -0,0 +1,27 @@
+.set noreorder
+.global __clone
+.type   __clone,@function
+__clone:
+       # Save function pointer and argument pointer
+       move $25, $4
+       move $8, $7
+       # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (sp,fl,ptid,tls,ctid)
+       move $4, $5
+       move $5, $6
+       lw $6, 16($sp)
+       lw $7, 20($sp)
+       lw $9, 24($sp)
+       sw $9, 16($sp)
+       li $2, 4120
+       syscall
+       beq $7, $0, 1f
+       nop
+       jr $ra
+       subu $2, $0, $2
+1:     beq $2, $0, 1f
+       nop
+       jr $ra
+       nop
+1:     move $4, $8
+       jr $25
+       nop

diff --git a/src/thread/mips/syscall_cp.s b/src/thread/mips/syscall_cp.s
new file mode 100644 (file)
index 0000000..9a796bd
--- /dev/null
+++ b/src/thread/mips/syscall_cp.s
@@ -0,0 +1,31 @@
+.set    noreorder
+
+.global __syscall_cp_asm
+.type   __syscall_cp_asm,@function
+__syscall_cp_asm:
+.global __cp_begin
+__cp_begin:
+       lw      $4, 0($4)
+       bne     $4, $0, 2f
+       move    $10, $5
+       move    $4, $6
+       move    $5, $7
+       lw      $6, 16($sp)
+       lw      $7, 20($sp)
+       lw      $8, 24($sp)
+       lw      $9, 28($sp)
+       subu    $sp, $sp, 32
+       sw      $8, 16($sp)
+       sw      $9, 20($sp)
+       move    $2, $10
+       syscall
+.global __cp_end
+__cp_end:
+       beq     $7, $0, 1f
+       addu    $sp, $sp, 32
+       subu    $2, $0, $2
+1:     jr      $ra
+       nop
+2:     lw      $25, %call16(__cancel)($gp)
+       jr      $25
+       nop