Ali Saidi <[EMAIL PROTECTED]> writes:
> We're happy to announce an official beta release of M5 2.0, including
> all the new features described at our ISCA 2006 tutorial:
>
> - A new execute-in-execute detailed out-of-order CPU model
> - A new memory system
> - More extensive python integration
> - Preliminary syscall emulation support for MIPS and SPARC
Could you clarify the licensing status of the 2.0 release? The
distribution still has the encumbered directory and eio seems to be
compiled in from it. I'm still a bit uncomfortable about using M5 in
commercial context even if I would not use the eio features.
Below is a quick hack to add dup() to the syscall emu mode. For some
reason minigzip from zlib wants that.
While waiting for minigzip to compress rfc-index.txt I was thinking
whether anyone has considered accelerating the simulation with dynamic
compilation (QEMU-style)? LLVM looks like a nice C++ based compiler
framework so using it might be a good fit for M5 :-)
--- src/arch/alpha/linux/process.cc~ 2006-08-18 07:26:53.000000000 +0300
+++ src/arch/alpha/linux/process.cc 2006-08-27 19:47:56.000000000 +0300
@@ -162,8 +162,8 @@
/* 38 */ SyscallDesc("osf_old_stat", unimplementedFunc),
/* 39 */ SyscallDesc("setpgid", unimplementedFunc),
/* 40 */ SyscallDesc("osf_old_lstat", unimplementedFunc),
- /* 41 */ SyscallDesc("dup", unimplementedFunc),
+ /* 41 */ SyscallDesc("dup", dupFunc),
/* 42 */ SyscallDesc("pipe", pipePseudoFunc),
/* 43 */ SyscallDesc("osf_set_program_attributes", unimplementedFunc),
/* 44 */ SyscallDesc("osf_profil", unimplementedFunc),
--- src/sim/syscall_emul.hh~ 2006-08-18 07:26:53.000000000 +0300
+++ src/sim/syscall_emul.hh 2006-08-27 19:50:59.000000000 +0300
@@ -245,7 +249,11 @@
SyscallReturn fchownFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
+/// Target dup() handler.
+SyscallReturn dupFunc(SyscallDesc *desc, int num,
+ Process *process, ThreadContext *tc);
+
/// Target fnctl() handler.
SyscallReturn fcntlFunc(SyscallDesc *desc, int num,
Process *process, ThreadContext *tc);
--- src/sim/syscall_emul.cc~ 2006-08-18 07:26:55.000000000 +0300
+++ src/sim/syscall_emul.cc 2006-08-27 19:50:15.000000000 +0300
@@ -301,6 +319,19 @@
SyscallReturn
+dupFunc(SyscallDesc *desc, int num, Process *process, ThreadContext *tc)
+{
+ int fd = process->sim_fd(tc->getSyscallArg(0));
+
+ if (fd < 0)
+ return -EBADF;
+
+ int result = dup(fd);
+ return (result == -1) ? -errno : process->alloc_fd(result);
+}
+
+
+SyscallReturn
fcntlFunc(SyscallDesc *desc, int num, Process *process,
ThreadContext *tc)
{
--
http://www.iki.fi/~ananaza/
_______________________________________________
m5-users mailing list
[email protected]
http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
