Changeset 53f9821 in mainline for arch/mips32/src/start.S

Timestamp:

2006-03-20T20:32:17Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

018d957e

Parents:

9d3e185

Message:

Cleanup of spinlocks, now compiles both ia32 and amd64 with
and without DEBUG_SPINLOCKS. Made spinlocks inline.
Moved syscall_handler to generic (it was identical for ia32,amd64 & mips32).
Made slightly faster syscall for ia32.
Made better interrupt routines for ia32.
Allow not saving non-scratch registers during interrupt on ia32,amd64,mips32.
Aligned interrupt handlers on ia32,amd64, this should prevent problems
with different instruction lengths.

File:

• arch/mips32/src/start.S (modified) (3 diffs)

arch/mips32/src/start.S

@@ -216 +216 @@
         sub $k1, 8            # 8=SYSCALL
         
-        beqz $k1, uspace_shortcut
+        beqz $k1, syscall_shortcut
         add $k1, 8            # Revert $k1 back to correct exc number
         
@@ -229 +229 @@
         # The $sp is automatically restored to former value
         eret
-        nop
 
 # it seems that mips reserves some space on stack for varfuncs???
@@ -236 +235 @@
 #define SS_STATUS 24
 #define SS_EPC    28
-uspace_shortcut:
+syscall_shortcut:
         # We have a lot of space on the stack, with free use
         sw $sp, SS_SP($k0)