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mips: Convert MIPS specific syscalls to Guest ABI.

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Jira Issue: https://gem5.atlassian.net/browse/GEM5-187

Change-Id: I7e7c49e885a8c3395f2e6ca361c228bce3691dbe
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/23205
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Gabe Black
2019-11-28 00:05:34 -08:00
parent 11fc132669
commit 7ca61b7ddf
1 changed files with 7 additions and 21 deletions
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28
src/arch/mips/linux/process.cc
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@@ -77,11 +77,10 @@ MipsLinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc, Addr utsname)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
TypedBufferArg<Linux::utsname> name(utsname);
strcpy(name->sysname, "Linux");
strcpy(name->nodename,"sim.gem5.org");
@@ -97,14 +96,9 @@ unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
/// borrowed from Tru64, the subcases that get used appear to be
/// different in practice from those used by Tru64 processes.
static SyscallReturn
sys_getsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
sys_getsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc,
unsigned op, unsigned bufPtr, unsigned nbytes)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned op = process->getSyscallArg(tc, index);
unsigned bufPtr = process->getSyscallArg(tc, index);
// unsigned nbytes = process->getSyscallArg(tc, index);
switch (op) {
case 45:
{
@@ -126,14 +120,9 @@ sys_getsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
/// Target sys_setsysinfo() handler.
static SyscallReturn
sys_setsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
sys_setsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc,
unsigned op, Addr bufPtr, unsigned nbytes)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned op = process->getSyscallArg(tc, index);
Addr bufPtr = process->getSyscallArg(tc, index);
// unsigned nbytes = process->getSyscallArg(tc, index);
switch (op) {
case 14:
@@ -156,11 +145,8 @@ sys_setsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
}
static SyscallReturn
setThreadAreaFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
setThreadAreaFunc(SyscallDesc *desc, int callnum, ThreadContext *tc, Addr addr)
{
int index = 0;
auto process = tc->getProcessPtr();
Addr addr = process->getSyscallArg(tc, index);
tc->setMiscRegNoEffect(MISCREG_TP_VALUE, addr);
return 0;
}