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Don't flip the "we're it" bit until we are all there..

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(don't fill in the mailbox pointer until we have unloaded all the
previous contents of the mailbox context block)
This commit is contained in:
Julian Elischer 2002-11-22 00:23:02 +00:00
parent 16d7acae14
commit c2f7aa6939
1 changed files with 10 additions and 9 deletions
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19
tools/KSE/ksetest/kse_asm.S
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@ -62,7 +62,7 @@ ENTRY(uts_to_thread)
movl $-1, %eax /* bzzzt, invalid context */
jmp 5f
2: movl 8(%esp), %eax /* get address of curthreadp */
movl %edx, (%eax) /* we're now the current thread */
movl %edx, %ebx /* save the pointer for later */
/*
* From here on, we don't touch the old stack.
*/
@ -85,14 +85,15 @@ ENTRY(uts_to_thread)
jmp 4f
3: fninit
fldcw MC_FP_CW_OFFSET(%edx)
4: movl 48(%edx), %eax /* restore ax, bx, cx */
movl 36(%edx), %ebx
movl 44(%edx), %ecx
pushl 68(%edx) /* flags on stack */
pushl 40(%edx) /* %edx on stack */
popl %edx /* %edx off stack */
popf /* flags off stack */
5: ret /* %eip off stack */
4: pushl 68(%edx) /* flags */
pushl 48(%edx) /* eax */
pushl 36(%edx) /* ebx */
movl 40(%edx), %edx /* edx */
movl %ebx, (%eax) /* <---- set new mailbox pointer */
popl %ebx
popl %eax
popf
5: ret
/*
* int thread_to_uts(struct kse_thr_mailbox *tm, struct kse_mailbox *km);