From: Gabe Black <gblack@eecs.umich.edu>
Date: Thu, 31 Dec 2009 20:30:50 +0000 (-0500)
Subject: MIPS: Implement the set_thread_area system call.
X-Git-Tag: stable_2012_02_02~1575^2~11
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=134937b594572f6158870fd4a843ad9ff2d48287;p=gem5.git

MIPS: Implement the set_thread_area system call.
---

diff --git a/src/arch/mips/linux/process.cc b/src/arch/mips/linux/process.cc
index 428ea60af..4c3581ecb 100644
--- a/src/arch/mips/linux/process.cc
+++ b/src/arch/mips/linux/process.cc
@@ -126,6 +126,16 @@ sys_setsysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     return 1;
 }
 
+static SyscallReturn
+setThreadAreaFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+                  ThreadContext *tc)
+{
+    int index = 0;
+    Addr addr = process->getSyscallArg(tc, index);
+    tc->setMiscRegNoEffect(MISCREG_TP_VALUE, addr);
+    return 0;
+}
+
 SyscallDesc MipsLinuxProcess::syscallDescs[] = {
     /*  0 */ SyscallDesc("syscall", unimplementedFunc),
     /*  1 */ SyscallDesc("exit", exitFunc),
@@ -410,7 +420,7 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
     /* 280 */ SyscallDesc("add_key", unimplementedFunc),
     /* 281 */ SyscallDesc("request_key", unimplementedFunc),
     /* 282 */ SyscallDesc("keyctl", unimplementedFunc),
-    /* 283 */ SyscallDesc("set_thread_area", unimplementedFunc),
+    /* 283 */ SyscallDesc("set_thread_area", setThreadAreaFunc),
     /* 284 */ SyscallDesc("inotify_init", unimplementedFunc),
     /* 285 */ SyscallDesc("inotify_add_watch", unimplementedFunc),
     /* 286 */ SyscallDesc("inotify_rm_watch", unimplementedFunc),