# HG changeset patch
# Parent ba45735a726a4582e63561ab3dc741d7f0890447

diff -r ba45735a726a src/arch/x86/linux/process.cc
--- a/src/arch/x86/linux/process.cc	Thu Aug 04 12:32:21 2016 -0400
+++ b/src/arch/x86/linux/process.cc	Sat Aug 27 10:34:02 2016 +0200
@@ -296,7 +296,7 @@
     /*  75 */ SyscallDesc("fdatasync", unimplementedFunc),
     /*  76 */ SyscallDesc("truncate", truncateFunc),
     /*  77 */ SyscallDesc("ftruncate", ftruncateFunc),
-    /*  78 */ SyscallDesc("getdents", unimplementedFunc),
+    /*  78 */ SyscallDesc("getdents", getdentsFunc),
     /*  79 */ SyscallDesc("getcwd", getcwdFunc),
     /*  80 */ SyscallDesc("chdir", unimplementedFunc),
     /*  81 */ SyscallDesc("fchdir", unimplementedFunc),
@@ -435,7 +435,7 @@
     /* 214 */ SyscallDesc("epoll_ctl_old", unimplementedFunc),
     /* 215 */ SyscallDesc("epoll_wait_old", unimplementedFunc),
     /* 216 */ SyscallDesc("remap_file_pages", unimplementedFunc),
-    /* 217 */ SyscallDesc("getdents64", unimplementedFunc),
+    /* 217 */ SyscallDesc("getdents64", getdents64Func),
     /* 218 */ SyscallDesc("set_tid_address", unimplementedFunc),
     /* 219 */ SyscallDesc("restart_syscall", unimplementedFunc),
     /* 220 */ SyscallDesc("semtimedop", unimplementedFunc),
@@ -682,7 +682,7 @@
     /* 138 */ SyscallDesc("setfsuid", unimplementedFunc),
     /* 139 */ SyscallDesc("setfsgid", unimplementedFunc),
     /* 140 */ SyscallDesc("_llseek", _llseekFunc),
-    /* 141 */ SyscallDesc("getdents", unimplementedFunc),
+    /* 141 */ SyscallDesc("getdents", getdentsFunc),
     /* 142 */ SyscallDesc("_newselect", unimplementedFunc),
     /* 143 */ SyscallDesc("flock", unimplementedFunc),
     /* 144 */ SyscallDesc("msync", unimplementedFunc),
@@ -762,7 +762,7 @@
     /* 218 */ SyscallDesc("mincore", unimplementedFunc),
     /* 219 */ SyscallDesc("madvise", unimplementedFunc),
     /* 220 */ SyscallDesc("madvise1", unimplementedFunc),
-    /* 221 */ SyscallDesc("getdents64", unimplementedFunc),
+    /* 221 */ SyscallDesc("getdents64", getdents64Func),
     /* 222 */ SyscallDesc("fcntl64", unimplementedFunc),
     /* 223 */ SyscallDesc("unused", unimplementedFunc),
     /* 224 */ SyscallDesc("gettid", unimplementedFunc),
diff -r ba45735a726a src/sim/syscall_emul.hh
--- a/src/sim/syscall_emul.hh	Thu Aug 04 12:32:21 2016 -0400
+++ b/src/sim/syscall_emul.hh	Sat Aug 27 10:34:02 2016 +0200
@@ -273,41 +273,49 @@
 
 /// Target setuid() handler.
 SyscallReturn setuidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                         LiveProcess *p, ThreadContext *tc);
 
 /// Target getpid() handler.
 SyscallReturn getpidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                         LiveProcess *p, ThreadContext *tc);
 
 /// Target getuid() handler.
 SyscallReturn getuidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                         LiveProcess *p, ThreadContext *tc);
 
 /// Target getgid() handler.
 SyscallReturn getgidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                         LiveProcess *p, ThreadContext *tc);
 
 /// Target getppid() handler.
 SyscallReturn getppidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                          LiveProcess *p, ThreadContext *tc);
 
 /// Target geteuid() handler.
 SyscallReturn geteuidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                          LiveProcess *p, ThreadContext *tc);
 
 /// Target getegid() handler.
 SyscallReturn getegidFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                          LiveProcess *p, ThreadContext *tc);
 
 /// Target clone() handler.
 SyscallReturn cloneFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                        LiveProcess *p, ThreadContext *tc);
+
+/// Target getdents() handler.
+SyscallReturn getdentsFunc(SyscallDesc *desc, int num,
+                           LiveProcess *p, ThreadContext *tc);
+
+/// Target getdents64() handler.
+SyscallReturn getdents64Func(SyscallDesc *desc, int num,
+                             LiveProcess *p, ThreadContext *tc);
 
 /// Target access() handler
 SyscallReturn accessFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc);
+                         LiveProcess *p, ThreadContext *tc);
 SyscallReturn accessFunc(SyscallDesc *desc, int num,
-                               LiveProcess *p, ThreadContext *tc,
+                         LiveProcess *p, ThreadContext *tc,
                                int index);
 
 /// Futex system call
diff -r ba45735a726a src/sim/syscall_emul.cc
--- a/src/sim/syscall_emul.cc	Thu Aug 04 12:32:21 2016 -0400
+++ b/src/sim/syscall_emul.cc	Sat Aug 27 10:34:02 2016 +0200
@@ -349,6 +349,46 @@
 }
 
 SyscallReturn
+getdentsFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
+{
+    int index = 0;
+    int sim_fd = p->sim_fd(p->getSyscallArg(tc, index));
+    if (sim_fd < 0)
+        return -EBADF;
+    Addr buf_ptr = p->getSyscallArg(tc, index);
+    int nbytes = p->getSyscallArg(tc, index);
+    BufferArg buf_arg(buf_ptr, nbytes);
+
+    int nread = syscall(SYS_getdents, sim_fd, buf_arg.bufferPtr(), nbytes);
+    int errno_after_call = errno;
+
+    if (nread > 0)
+        buf_arg.copyOut(tc->getMemProxy());
+
+    return (nread == -1) ? -errno_after_call : nread;
+}
+
+SyscallReturn
+getdents64Func(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
+{
+    int index = 0;
+    int sim_fd = p->sim_fd(p->getSyscallArg(tc, index));
+    if (sim_fd < 0)
+        return -EBADF;
+    Addr buf_ptr = p->getSyscallArg(tc, index);
+    int nbytes = p->getSyscallArg(tc, index);
+    BufferArg buf_arg(buf_ptr, nbytes);
+
+    int nread = syscall(SYS_getdents64, sim_fd, buf_arg.bufferPtr(), nbytes);
+    int errno_after_call = errno;
+
+    if (nread > 0)
+        buf_arg.copyOut(tc->getMemProxy());
+
+    return (nread == -1) ? -errno_after_call : nread;
+}
+
+SyscallReturn
 getcwdFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
 {
     int result = 0;