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sim-se: small refactor on pipe syscall

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Change-Id: I02ffb1c4af980554ff12ac7d11d32ba80fe261c5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/12308
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Brandon Potter
2018-08-28 18:02:58 -04:00
committed by Brandon Potter
parent 334b8377f3
commit 7bd5f554b5
1 changed files with 7 additions and 4 deletions
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11
src/sim/syscall_emul.cc
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@@ -868,8 +868,14 @@ fcntl64Func(SyscallDesc *desc, int num, ThreadContext *tc)
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)
@@ -898,9 +904,6 @@ pipeImpl(SyscallDesc *desc, int callnum, ThreadContext *tc, bool pseudoPipe)
return tgt_fds[0];
}
int index = 0;
Addr 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.