syscall-emul: Ignore unimplemented system calls

This changeset sets the implementation policy for a subset of
system calls to the ignoreFunc implementation (for x86 only).
The ignored system calls likely will never be implemented and
this allows a warning to be issued instead of the simulation
exiting with a fatal.

Change-Id: I8d9741ad683151e88cc71156d3602e2d0ccb0acf
Reviewed-on: https://gem5-review.googlesource.com/2270
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

diff --git a/src/arch/x86/linux/process.cc b/src/arch/x86/linux/process.cc
index be572295b37d4dc135bdc423308f6bc0a20ee65f..4591cf96690fb20fae81a3f79e44a5911b15b0b8 100644 (file)
--- a/src/arch/x86/linux/process.cc
+++ b/src/arch/x86/linux/process.cc
@@ -244,11 +244,11 @@ static SyscallDesc syscallDescs64[] = {
     /*  21 */ SyscallDesc("access", ignoreFunc),
     /*  22 */ SyscallDesc("pipe", pipeFunc),
     /*  23 */ SyscallDesc("select", unimplementedFunc),
-    /*  24 */ SyscallDesc("sched_yield", unimplementedFunc),
+    /*  24 */ SyscallDesc("sched_yield", ignoreFunc),
     /*  25 */ SyscallDesc("mremap", mremapFunc<X86Linux64>),
     /*  26 */ SyscallDesc("msync", unimplementedFunc),
     /*  27 */ SyscallDesc("mincore", unimplementedFunc),
-    /*  28 */ SyscallDesc("madvise", unimplementedFunc),
+    /*  28 */ SyscallDesc("madvise", ignoreFunc),
     /*  29 */ SyscallDesc("shmget", unimplementedFunc),
     /*  30 */ SyscallDesc("shmat", unimplementedFunc),
     /*  31 */ SyscallDesc("shmctl", unimplementedFunc),
@@ -337,7 +337,7 @@ static SyscallDesc syscallDescs64[] = {
     /* 114 */ SyscallDesc("setregid", unimplementedFunc),
     /* 115 */ SyscallDesc("getgroups", unimplementedFunc),
     /* 116 */ SyscallDesc("setgroups", unimplementedFunc),
-    /* 117 */ SyscallDesc("setresuid", unimplementedFunc),
+    /* 117 */ SyscallDesc("setresuid", ignoreFunc),
     /* 118 */ SyscallDesc("getresuid", unimplementedFunc),
     /* 119 */ SyscallDesc("setresgid", unimplementedFunc),
     /* 120 */ SyscallDesc("getresgid", unimplementedFunc),
@@ -361,7 +361,7 @@ static SyscallDesc syscallDescs64[] = {
     /* 138 */ SyscallDesc("fstatfs", unimplementedFunc),
     /* 139 */ SyscallDesc("sysfs", unimplementedFunc),
     /* 140 */ SyscallDesc("getpriority", unimplementedFunc),
-    /* 141 */ SyscallDesc("setpriority", unimplementedFunc),
+    /* 141 */ SyscallDesc("setpriority", ignoreFunc),
     /* 142 */ SyscallDesc("sched_setparam", unimplementedFunc),
     /* 143 */ SyscallDesc("sched_getparam", unimplementedFunc),
     /* 144 */ SyscallDesc("sched_setscheduler", unimplementedFunc),
@@ -424,7 +424,7 @@ static SyscallDesc syscallDescs64[] = {
     /* 201 */ SyscallDesc("time", timeFunc<X86Linux64>),
     /* 202 */ SyscallDesc("futex", futexFunc<X86Linux64>),
     /* 203 */ SyscallDesc("sched_setaffinity", unimplementedFunc),
-    /* 204 */ SyscallDesc("sched_getaffinity", unimplementedFunc),
+    /* 204 */ SyscallDesc("sched_getaffinity", ignoreFunc),
     /* 205 */ SyscallDesc("set_thread_area", unimplementedFunc),
     /* 206 */ SyscallDesc("io_setup", unimplementedFunc),
     /* 207 */ SyscallDesc("io_destroy", unimplementedFunc),
@@ -459,7 +459,7 @@ static SyscallDesc syscallDescs64[] = {
     /* 236 */ SyscallDesc("vserver", unimplementedFunc),
     /* 237 */ SyscallDesc("mbind", unimplementedFunc),
     /* 238 */ SyscallDesc("set_mempolicy", unimplementedFunc),
-    /* 239 */ SyscallDesc("get_mempolicy", unimplementedFunc),
+    /* 239 */ SyscallDesc("get_mempolicy", ignoreFunc),
     /* 240 */ SyscallDesc("mq_open", unimplementedFunc),
     /* 241 */ SyscallDesc("mq_unlink", unimplementedFunc),
     /* 242 */ SyscallDesc("mq_timedsend", unimplementedFunc),
@@ -493,7 +493,7 @@ static SyscallDesc syscallDescs64[] = {
     /* 270 */ SyscallDesc("pselect6", unimplementedFunc),
     /* 271 */ SyscallDesc("ppoll", unimplementedFunc),
     /* 272 */ SyscallDesc("unshare", unimplementedFunc),
-    /* 273 */ SyscallDesc("set_robust_list", unimplementedFunc),
+    /* 273 */ SyscallDesc("set_robust_list", ignoreFunc),
     /* 274 */ SyscallDesc("get_robust_list", unimplementedFunc),
     /* 275 */ SyscallDesc("splice", unimplementedFunc),
     /* 276 */ SyscallDesc("tee", unimplementedFunc),
@@ -646,9 +646,9 @@ static SyscallDesc syscallDescs32[] = {
     /*  94 */ SyscallDesc("fchmod", unimplementedFunc),
     /*  95 */ SyscallDesc("fchown", unimplementedFunc),
     /*  96 */ SyscallDesc("getpriority", unimplementedFunc),
-    /*  97 */ SyscallDesc("setpriority", unimplementedFunc),
+    /*  97 */ SyscallDesc("setpriority", ignoreFunc),
     /*  98 */ SyscallDesc("profil", unimplementedFunc),
-    /*  99 */ SyscallDesc("statfs", unimplementedFunc),
+    /*  99 */ SyscallDesc("statfs", ignoreFunc),
     /* 100 */ SyscallDesc("fstatfs", unimplementedFunc),
     /* 101 */ SyscallDesc("ioperm", unimplementedFunc),
     /* 102 */ SyscallDesc("socketcall", unimplementedFunc),
@@ -707,13 +707,13 @@ static SyscallDesc syscallDescs32[] = {
     /* 155 */ SyscallDesc("sched_getparam", unimplementedFunc),
     /* 156 */ SyscallDesc("sched_setscheduler", unimplementedFunc),
     /* 157 */ SyscallDesc("sched_getscheduler", unimplementedFunc),
-    /* 158 */ SyscallDesc("sched_yield", unimplementedFunc),
+    /* 158 */ SyscallDesc("sched_yield", ignoreFunc),
     /* 159 */ SyscallDesc("sched_get_priority_max", unimplementedFunc),
     /* 160 */ SyscallDesc("sched_get_priority_min", unimplementedFunc),
     /* 161 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc),
-    /* 162 */ SyscallDesc("nanosleep", unimplementedFunc),
+    /* 162 */ SyscallDesc("nanosleep", ignoreFunc),
     /* 163 */ SyscallDesc("mremap", unimplementedFunc),
-    /* 164 */ SyscallDesc("setresuid", unimplementedFunc),
+    /* 164 */ SyscallDesc("setresuid", ignoreFunc),
     /* 165 */ SyscallDesc("getresuid", unimplementedFunc),
     /* 166 */ SyscallDesc("vm86", unimplementedFunc),
     /* 167 */ SyscallDesc("query_module", unimplementedFunc),
@@ -768,7 +768,7 @@ static SyscallDesc syscallDescs32[] = {
     /* 216 */ SyscallDesc("setfsgid32", unimplementedFunc),
     /* 217 */ SyscallDesc("pivot_root", unimplementedFunc),
     /* 218 */ SyscallDesc("mincore", unimplementedFunc),
-    /* 219 */ SyscallDesc("madvise", unimplementedFunc),
+    /* 219 */ SyscallDesc("madvise", ignoreFunc),
     /* 220 */ SyscallDesc("madvise1", unimplementedFunc),
     /* 221 */ SyscallDesc("getdents64", unimplementedFunc),
     /* 222 */ SyscallDesc("fcntl64", unimplementedFunc),
@@ -791,7 +791,7 @@ static SyscallDesc syscallDescs32[] = {
     /* 239 */ SyscallDesc("sendfile64", unimplementedFunc),
     /* 240 */ SyscallDesc("futex", unimplementedFunc),
     /* 241 */ SyscallDesc("sched_setaffinity", unimplementedFunc),
-    /* 242 */ SyscallDesc("sched_getaffinity", unimplementedFunc),
+    /* 242 */ SyscallDesc("sched_getaffinity", ignoreFunc),
     /* 243 */ SyscallDesc("set_thread_area", setThreadArea32Func),
     /* 244 */ SyscallDesc("get_thread_area", unimplementedFunc),
     /* 245 */ SyscallDesc("io_setup", unimplementedFunc),
@@ -824,7 +824,7 @@ static SyscallDesc syscallDescs32[] = {
     /* 272 */ SyscallDesc("fadvise64_64", unimplementedFunc),
     /* 273 */ SyscallDesc("vserver", unimplementedFunc),
     /* 274 */ SyscallDesc("mbind", unimplementedFunc),
-    /* 275 */ SyscallDesc("get_mempolicy", unimplementedFunc),
+    /* 275 */ SyscallDesc("get_mempolicy", ignoreFunc),
     /* 276 */ SyscallDesc("set_mempolicy", unimplementedFunc),
     /* 277 */ SyscallDesc("mq_open", unimplementedFunc),
     /* 278 */ SyscallDesc("mq_unlink", unimplementedFunc),
@@ -860,8 +860,8 @@ static SyscallDesc syscallDescs32[] = {
     /* 308 */ SyscallDesc("pselect6", unimplementedFunc),
     /* 309 */ SyscallDesc("ppoll", unimplementedFunc),
     /* 310 */ SyscallDesc("unshare", unimplementedFunc),
-    /* 311 */ SyscallDesc("set_robust_list", unimplementedFunc),
-    /* 312 */ SyscallDesc("get_robust_list", unimplementedFunc),
+    /* 311 */ SyscallDesc("set_robust_list", ignoreFunc),
+    /* 312 */ SyscallDesc("get_robust_list", ignoreFunc),
     /* 313 */ SyscallDesc("splice", unimplementedFunc),
     /* 314 */ SyscallDesc("sync_file_range", unimplementedFunc),
     /* 315 */ SyscallDesc("tee", unimplementedFunc),