Changeset 296426ad in mainline for kernel/arch/amd64/src/proc/scheduler.c

Timestamp:

2007-11-16T16:17:18Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

9c2fb97

Parents:

e686744c

Message:

Support for 6 syscalls arguments on amd64.

File:

• kernel/arch/amd64/src/proc/scheduler.c (modified) (2 diffs)

kernel/arch/amd64/src/proc/scheduler.c

@@ -57 +57 @@
 void before_thread_runs_arch(void)
 {
-        CPU->arch.tss->rsp0 = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA];
+        CPU->arch.tss->rsp0 =
+            (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
 
-        /* Syscall support - write address of thread stack pointer to 
-         * hidden part of gs */
+        /*
+         * Syscall support.
+         */
         swapgs();
-        write_msr(AMD_MSR_GS, (uint64_t)&THREAD->kstack);
+        write_msr(AMD_MSR_GS, (uintptr_t)THREAD->arch.syscall_rsp);
         swapgs();
 
@@ -72 +74 @@
         if (CPU->id < BKPOINTS_MAX)
                 breakpoint_add(&((the_t *) THREAD->kstack)->as, 
-                               BKPOINT_WRITE | BKPOINT_CHECK_ZERO,
-                               CPU->id);
+                    BKPOINT_WRITE | BKPOINT_CHECK_ZERO, CPU->id);
 #endif
 }