Changeset b755225 in mainline

Timestamp:

2008-12-27T00:24:42Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

ac48fef

Parents:

d3e6935

Message:

Support for preemptible syscalls on sparc64.

File:

• kernel/arch/sparc64/src/trap/trap_table.S (modified) (1 diff)

kernel/arch/sparc64/src/trap/trap_table.S

@@ -607 +607 @@
 .else
         /*
-         * Call the higher-level syscall handler.
+         * Call the higher-level syscall handler and enable interrupts.
          */
         call syscall_handler
-        nop
+        wrpr %g0, PSTATE_PRIV_BIT | PSTATE_PEF_BIT | PSTATE_IE_BIT, %pstate
         mov %o0, %i0                            ! copy the value returned by the syscall
 .endif