From: Sandipan Das <sandipan@linux.vnet.ibm.com>
Date: Thu, 7 Jun 2018 14:46:12 +0000 (+0530)
Subject: arch-power: Update hello test program
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e52dbcb76a99411a02db151303ae59bbbcc4a302;p=gem5.git

arch-power: Update hello test program

This updates the hello test program binary to an equivalent
64-bit little endian executable. Since this binary is built
with a recent toolchain, the kernel version provided by the
uname system call is ramped up to be able to meet the minimum
version required by glibc. This binary also uses the readlink
system call and the Move From Time Base (mftb) instruction.
So, placeholder code is added for these.

Change-Id: I645b344e8582f938711b75488bd25899c374cca3
Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
---

diff --git a/src/arch/power/isa/decoder.isa b/src/arch/power/isa/decoder.isa
index 6b2ebf4fe..cd18fa9b5 100644
--- a/src/arch/power/isa/decoder.isa
+++ b/src/arch/power/isa/decoder.isa
@@ -707,6 +707,7 @@ decode PO default Unknown::unknown() {
                 0x100: mflr({{ Rt = LR; }});
                 0x120: mfctr({{ Rt = CTR; }});
                 0x32f: mftar({{ Rt = TAR; }});
+                0x188: mftb({{ Rt = 0; }}); // FIXME
             }
             467: decode SPR {
                 0x20: mtxer({{ XER = Rs; }});
diff --git a/src/arch/power/linux/process.cc b/src/arch/power/linux/process.cc
index 801274969..0714c8752 100644
--- a/src/arch/power/linux/process.cc
+++ b/src/arch/power/linux/process.cc
@@ -57,7 +57,7 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
 
     strcpy(name->sysname, "Linux");
     strcpy(name->nodename, "sim.gem5.org");
-    strcpy(name->release, "3.0.0");
+    strcpy(name->release, "4.0.0");
     strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
     strcpy(name->machine, "power");
 
@@ -151,7 +151,7 @@ SyscallDesc PowerLinuxProcess::syscallDescs[] = {
     /* 82 */ SyscallDesc("reserved#82", unimplementedFunc),
     /* 83 */ SyscallDesc("symlink", unimplementedFunc),
     /* 84 */ SyscallDesc("unused#84", unimplementedFunc),
-    /* 85 */ SyscallDesc("readlink", unimplementedFunc),
+    /* 85 */ SyscallDesc("readlink", readlinkFunc),
     /* 86 */ SyscallDesc("uselib", unimplementedFunc),
     /* 87 */ SyscallDesc("swapon", gethostnameFunc),
     /* 88 */ SyscallDesc("reboot", unimplementedFunc),
diff --git a/tests/test-progs/hello/bin/power/linux/hello b/tests/test-progs/hello/bin/power/linux/hello
index 6619ae37f..8ab68ac04 100755
Binary files a/tests/test-progs/hello/bin/power/linux/hello and b/tests/test-progs/hello/bin/power/linux/hello differ