initial version of mips (o32) port, based on work by Richard Pennington (rdp)

[musl] / crt / mips / crt1.s

diff --git a/crt/mips/crt1.s b/crt/mips/crt1.s
new file mode 100644 (file)
index 0000000..bdb7c1a
--- /dev/null
+++ b/crt/mips/crt1.s
@@ -0,0 +1,25 @@
+.set noreorder
+
+.weak  _init
+.weak  _fini
+.global __start
+.global _start
+__start:
+_start:
+       subu    $fp, $fp, $fp            # Zero the frame pointer.
+       lui     $gp, %hi(_gp)
+       addi    $gp, %lo(_gp)
+       #la      $gp, _gp
+       lw      $4, %call16(main)($gp)   # Get main() ...
+       lw      $5, ($sp)                # Get argc...
+       addu    $6, $sp, 4               # and argv ...
+       lw      $7, %call16(_init)($gp)  # and _init() ...
+       addi    $sp, $sp, -4*6           # Leave space for arguments 0..3, arg4, and arg5.
+       lw      $12, %call16(_fini)($gp) # and _fini() ...
+       sw      $12, 4*4($sp)            # Save arg4.
+       sw      $0, 4*5($sp)             # ldso_fini == NULL
+       lw      $25, %call16(__libc_start_main)($gp)
+       jalr    $25                      # Let's go!
+       nop
+       b       .                        # Never gets here.
+       nop