Brandon Potter has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/12308
Change subject: syscall_emul: small refactor on pipe syscall
......................................................................
syscall_emul: small refactor on pipe syscall
Change-Id: I02ffb1c4af980554ff12ac7d11d32ba80fe261c5
---
M src/sim/syscall_emul.cc
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index 0fb4b95..b9fe8e4 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -831,8 +831,14 @@
SyscallReturn
pipeImpl(SyscallDesc *desc, int callnum, ThreadContext *tc, bool
pseudoPipe)
{
- int sim_fds[2], tgt_fds[2];
+ Addr tgt_addr = 0;
auto p = tc->getProcessPtr();
+ if (!pseudoPipe) {
+ int index = 0;
+ tgt_addr = p->getSyscallArg(tc, index);
+ }
+
+ int sim_fds[2], tgt_fds[2];
int pipe_retval = pipe(sim_fds);
if (pipe_retval == -1)
@@ -861,10 +867,6 @@
return tgt_fds[0];
}
- Addr tgt_addr;
- int index = 0;
- tgt_addr = p->getSyscallArg(tc, index);
-
/**
* Copy the target file descriptors into buffer space and then copy
* the buffer space back into the target address space.
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I02ffb1c4af980554ff12ac7d11d32ba80fe261c5
Gerrit-Change-Number: 12308
Gerrit-PatchSet: 1
Gerrit-Owner: Brandon Potter <[email protected]>
Gerrit-MessageType: newchange
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