Brandon Potter has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/17111 )
Change subject: sim-se: add new getpgrp system call
......................................................................
sim-se: add new getpgrp system call
This changeset adds new (relatively simple) system call
support. The getpgrp call returns a thread context's
pgid.
Change-Id: I361bdbfb9c01b761ddd5a4923d23f86971f8d614
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17111
Maintainer: Brandon Potter <[email protected]>
Tested-by: kokoro <[email protected]>
Reviewed-by: Ayaz Akram <[email protected]>
---
M src/arch/x86/linux/process.cc
M src/sim/syscall_emul.cc
M src/sim/syscall_emul.hh
3 files changed, 11 insertions(+), 1 deletion(-)
Approvals:
Ayaz Akram: Looks good to me, approved
Brandon Potter: Looks good to me, approved
kokoro: Regressions pass
diff --git a/src/arch/x86/linux/process.cc b/src/arch/x86/linux/process.cc
index 9ffde7f..8f669bf 100644
--- a/src/arch/x86/linux/process.cc
+++ b/src/arch/x86/linux/process.cc
@@ -373,7 +373,7 @@
/* 108 */ SyscallDesc("getegid", getegidFunc),
/* 109 */ SyscallDesc("setpgid", setpgidFunc),
/* 110 */ SyscallDesc("getppid", getppidFunc),
- /* 111 */ SyscallDesc("getpgrp", unimplementedFunc),
+ /* 111 */ SyscallDesc("getpgrp", getpgrpFunc),
/* 112 */ SyscallDesc("setsid", unimplementedFunc),
/* 113 */ SyscallDesc("setreuid", unimplementedFunc),
/* 114 */ SyscallDesc("setregid", unimplementedFunc),
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index 28e3e3d..088dcbc 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -983,6 +983,13 @@
}
SyscallReturn
+getpgrpFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
+{
+ auto process = tc->getProcessPtr();
+ return process->pgid();
+}
+
+SyscallReturn
setpgidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index 875f565..130791d 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -226,6 +226,9 @@
/// Target chown() handler.
SyscallReturn chownFunc(SyscallDesc *desc, int num, ThreadContext *tc);
+/// Target getpgrpFunc() handler.
+SyscallReturn getpgrpFunc(SyscallDesc *desc, int num, ThreadContext *tc);
+
/// Target setpgid() handler.
SyscallReturn setpgidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I361bdbfb9c01b761ddd5a4923d23f86971f8d614
Gerrit-Change-Number: 17111
Gerrit-PatchSet: 14
Gerrit-Owner: Brandon Potter <[email protected]>
Gerrit-Reviewer: Alexandru Duțu <[email protected]>
Gerrit-Reviewer: Ayaz Akram <[email protected]>
Gerrit-Reviewer: Brandon Potter <[email protected]>
Gerrit-Reviewer: John Alsop <[email protected]>
Gerrit-Reviewer: kokoro <[email protected]>
Gerrit-MessageType: merged
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