changeset 8e18835c0dea in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=8e18835c0dea
description:
x86: syscall: implementation of exit_group
On exit_group syscall, we used to exit the simulator. But now we will
only
halt the execution of threads that belong to the group.
Committed by: Nilay Vaish <[email protected]>
diffstat:
src/sim/syscall_emul.cc | 16 +++++++++++-----
1 files changed, 11 insertions(+), 5 deletions(-)
diffs (26 lines):
diff -r f1baf4f7723f -r 8e18835c0dea src/sim/syscall_emul.cc
--- a/src/sim/syscall_emul.cc Thu Oct 16 05:50:01 2014 -0400
+++ b/src/sim/syscall_emul.cc Mon Oct 20 16:43:48 2014 -0500
@@ -135,11 +135,17 @@
exitGroupFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
- // really should just halt all thread contexts belonging to this
- // process in case there's another process running...
- int index = 0;
- exitSimLoop("target called exit()",
- process->getSyscallArg(tc, index) & 0xff);
+ // halt all threads belonging to this process
+ for (auto i: process->contextIds) {
+ process->system->getThreadContext(i)->halt();
+ }
+
+ if (!process->system->numRunningContexts()) {
+ // all threads belonged to this process... exit simulator
+ int index = 0;
+ exitSimLoop("target called exit()",
+ process->getSyscallArg(tc, index) & 0xff);
+ }
return 1;
}
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