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sim: revert 6709bbcf564d

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The identifier SYS_getdents is not available on Mac OS X.  Therefore, its use
results in compilation failure.  It seems there is no straight forward way to
implement the system call getdents using readdir() or similar C functions.
Hence the commit 6709bbcf564d is being rolled back.
This commit is contained in:
Nilay Vaish 2014-10-22 15:59:57 -05:00
parent d6f1c6ce89
commit 6523aad25c
8 changed files with 14 additions and 58 deletions
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4
src/arch/alpha/linux/process.cc
View file

@ -431,7 +431,7 @@ SyscallDesc AlphaLinuxProcess::syscallDescs[] = {
/* 302 */ SyscallDesc("mount", unimplementedFunc),
/* 303 */ SyscallDesc("old_adjtimex", unimplementedFunc),
/* 304 */ SyscallDesc("swapoff", unimplementedFunc),
/* 305 */ SyscallDesc("getdents", getdentsFunc),
/* 305 */ SyscallDesc("getdents", unimplementedFunc),
/* 306 */ SyscallDesc("create_module", unimplementedFunc),
/* 307 */ SyscallDesc("init_module", unimplementedFunc),
/* 308 */ SyscallDesc("delete_module", unimplementedFunc),
@ -503,7 +503,7 @@ SyscallDesc AlphaLinuxProcess::syscallDescs[] = {
/* 374 */ SyscallDesc("pivot_root", unimplementedFunc),
/* 375 */ SyscallDesc("mincore", unimplementedFunc),
/* 376 */ SyscallDesc("pciconfig_iobase", unimplementedFunc),
/* 377 */ SyscallDesc("getdents64", getdents64Func),
/* 377 */ SyscallDesc("getdents64", unimplementedFunc),
/* 378 */ SyscallDesc("gettid", unimplementedFunc),
/* 379 */ SyscallDesc("readahead", unimplementedFunc),
/* 380 */ SyscallDesc("security", unimplementedFunc),

4
src/arch/arm/linux/process.cc
View file

@ -260,7 +260,7 @@ static SyscallDesc syscallDescs32[] = {
/* 138 */ SyscallDesc("setfsuid", unimplementedFunc),
/* 139 */ SyscallDesc("setfsgid", unimplementedFunc),
/* 140 */ SyscallDesc("llseek", _llseekFunc),
/* 141 */ SyscallDesc("getdents", getdentsFunc),
/* 141 */ SyscallDesc("getdents", unimplementedFunc),
/* 142 */ SyscallDesc("newselect", unimplementedFunc),
/* 143 */ SyscallDesc("flock", unimplementedFunc),
/* 144 */ SyscallDesc("msync", unimplementedFunc),
@ -336,7 +336,7 @@ static SyscallDesc syscallDescs32[] = {
/* 214 */ SyscallDesc("setgid", unimplementedFunc),
/* 215 */ SyscallDesc("setfsuid", unimplementedFunc),
/* 216 */ SyscallDesc("setfsgid", unimplementedFunc),
/* 217 */ SyscallDesc("getdents64", getdents64Func),
/* 217 */ SyscallDesc("getdents64", unimplementedFunc),
/* 218 */ SyscallDesc("pivot_root", unimplementedFunc),
/* 219 */ SyscallDesc("mincore", unimplementedFunc),
/* 220 */ SyscallDesc("madvise", unimplementedFunc),

4
src/arch/mips/linux/process.cc
View file

@ -277,7 +277,7 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
/* 138 */ SyscallDesc("setfsuid", unimplementedFunc),
/* 139 */ SyscallDesc("setfsgid", unimplementedFunc),
/* 140 */ SyscallDesc("llseek", unimplementedFunc),
/* 141 */ SyscallDesc("getdents", getdentsFunc),
/* 141 */ SyscallDesc("getdents", unimplementedFunc),
/* 142 */ SyscallDesc("newselect", unimplementedFunc),
/* 143 */ SyscallDesc("flock", unimplementedFunc),
/* 144 */ SyscallDesc("msync", unimplementedFunc),
@ -355,7 +355,7 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
/* 216 */ SyscallDesc("pivot_root", unimplementedFunc),
/* 217 */ SyscallDesc("mincore", unimplementedFunc),
/* 218 */ SyscallDesc("madvise", unimplementedFunc),
/* 219 */ SyscallDesc("getdents64", getdents64Func),
/* 219 */ SyscallDesc("getdents64", unimplementedFunc),
/* 220 */ SyscallDesc("fcntl64", fcntl64Func),
/* 221 */ SyscallDesc("reserved#221", unimplementedFunc),
/* 222 */ SyscallDesc("gettid", unimplementedFunc),

4
src/arch/power/linux/process.cc
View file

@ -205,7 +205,7 @@ SyscallDesc PowerLinuxProcess::syscallDescs[] = {
/* 138 */ SyscallDesc("setfsuid", unimplementedFunc),
/* 139 */ SyscallDesc("setfsgid", unimplementedFunc),
/* 140 */ SyscallDesc("llseek", _llseekFunc),
/* 141 */ SyscallDesc("getdents", getdentsFunc),
/* 141 */ SyscallDesc("getdents", unimplementedFunc),
/* 142 */ SyscallDesc("newselect", unimplementedFunc),
/* 143 */ SyscallDesc("flock", unimplementedFunc),
/* 144 */ SyscallDesc("msync", unimplementedFunc),
@ -281,7 +281,7 @@ SyscallDesc PowerLinuxProcess::syscallDescs[] = {
/* 214 */ SyscallDesc("setgid", unimplementedFunc),
/* 215 */ SyscallDesc("setfsuid", unimplementedFunc),
/* 216 */ SyscallDesc("setfsgid", unimplementedFunc),
/* 217 */ SyscallDesc("getdents64", getdents64Func),
/* 217 */ SyscallDesc("getdents64", unimplementedFunc),
/* 218 */ SyscallDesc("pivot_root", unimplementedFunc),
/* 219 */ SyscallDesc("mincore", unimplementedFunc),
/* 220 */ SyscallDesc("madvise", unimplementedFunc),

8
src/arch/sparc/linux/syscalls.cc
View file

@ -241,7 +241,7 @@ SyscallDesc SparcLinuxProcess::syscall32Descs[] = {
/* 151 */ SyscallDesc("inotify_init", unimplementedFunc),
/* 152 */ SyscallDesc("inotify_add_watch", unimplementedFunc),
/* 153 */ SyscallDesc("poll", unimplementedFunc),
/* 154 */ SyscallDesc("getdents64", getdents64Func),
/* 154 */ SyscallDesc("getdents64", unimplementedFunc),
/* 155 */ SyscallDesc("fcntl64", unimplementedFunc),
/* 156 */ SyscallDesc("inotify_rm_watch", unimplementedFunc),
/* 157 */ SyscallDesc("statfs", unimplementedFunc),
@ -261,7 +261,7 @@ SyscallDesc SparcLinuxProcess::syscall32Descs[] = {
/* 171 */ SyscallDesc("fsetxattr", unimplementedFunc), // 32 bit
/* 172 */ SyscallDesc("getxattr", unimplementedFunc),
/* 173 */ SyscallDesc("lgetxattr", unimplementedFunc),
/* 174 */ SyscallDesc("getdents", getdentsFunc),
/* 174 */ SyscallDesc("getdents", unimplementedFunc),
/* 175 */ SyscallDesc("setsid", unimplementedFunc),
/* 176 */ SyscallDesc("fchdir", unimplementedFunc),
/* 177 */ SyscallDesc("fgetxattr", unimplementedFunc), // 32 bit
@ -547,7 +547,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 151 */ SyscallDesc("inotify_init", unimplementedFunc),
/* 152 */ SyscallDesc("inotify_add_watch", unimplementedFunc),
/* 153 */ SyscallDesc("poll", unimplementedFunc),
/* 154 */ SyscallDesc("getdents64", getdents64Func),
/* 154 */ SyscallDesc("getdents64", unimplementedFunc),
/* 155 */ SyscallDesc("fcntl64", unimplementedFunc),
/* 156 */ SyscallDesc("inotify_rm_watch", unimplementedFunc),
/* 157 */ SyscallDesc("statfs", unimplementedFunc),
@ -567,7 +567,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 171 */ SyscallDesc("fsetxattr", unimplementedFunc),
/* 172 */ SyscallDesc("getxattr", unimplementedFunc),
/* 173 */ SyscallDesc("lgetxattr", unimplementedFunc),
/* 174 */ SyscallDesc("getdents", getdentsFunc),
/* 174 */ SyscallDesc("getdents", unimplementedFunc),
/* 175 */ SyscallDesc("setsid", unimplementedFunc),
/* 176 */ SyscallDesc("fchdir", unimplementedFunc),
/* 177 */ SyscallDesc("fgetxattr", unimplementedFunc),

4
src/arch/x86/linux/process.cc
View file

@ -296,7 +296,7 @@ static SyscallDesc syscallDescs64[] = {
/* 75 */ SyscallDesc("fdatasync", unimplementedFunc),
/* 76 */ SyscallDesc("truncate", truncateFunc),
/* 77 */ SyscallDesc("ftruncate", ftruncateFunc),
/* 78 */ SyscallDesc("getdents", getdentsFunc),
/* 78 */ SyscallDesc("getdents", unimplementedFunc),
/* 79 */ SyscallDesc("getcwd", getcwdFunc),
/* 80 */ SyscallDesc("chdir", unimplementedFunc),
/* 81 */ SyscallDesc("fchdir", unimplementedFunc),
@ -435,7 +435,7 @@ static SyscallDesc syscallDescs64[] = {
/* 214 */ SyscallDesc("epoll_ctl_old", unimplementedFunc),
/* 215 */ SyscallDesc("epoll_wait_old", unimplementedFunc),
/* 216 */ SyscallDesc("remap_file_pages", unimplementedFunc),
/* 217 */ SyscallDesc("getdents64", getdents64Func),
/* 217 */ SyscallDesc("getdents64", unimplementedFunc),
/* 218 */ SyscallDesc("set_tid_address", unimplementedFunc),
/* 219 */ SyscallDesc("restart_syscall", unimplementedFunc),
/* 220 */ SyscallDesc("semtimedop", unimplementedFunc),

36
src/sim/syscall_emul.cc
View file

@ -31,7 +31,6 @@
#include <fcntl.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <cstdio>
#include <iostream>
@ -868,41 +867,6 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
}
}
SyscallReturn
getdentsFunc(SyscallDesc *desc, int num, LiveProcess *p,
ThreadContext *tc)
{
int index = 0;
int fd = p->sim_fd(p->getSyscallArg(tc, index));
Addr bufPtr = p->getSyscallArg(tc, index);
int nbytes = p->getSyscallArg(tc, index);
BufferArg bufArg(bufPtr, nbytes);
int bytes_read = syscall(SYS_getdents, fd, bufArg.bufferPtr(), nbytes);
if (bytes_read != -1)
bufArg.copyOut(tc->getMemProxy());
return bytes_read;
}
SyscallReturn
getdents64Func(SyscallDesc *desc, int num, LiveProcess *p,
ThreadContext *tc)
{
int index = 0;
int fd = p->sim_fd(p->getSyscallArg(tc, index));
Addr bufPtr = p->getSyscallArg(tc, index);
int nbytes = p->getSyscallArg(tc, index);
BufferArg bufArg(bufPtr, nbytes);
int bytes_read = syscall(SYS_getdents64, fd, bufArg.bufferPtr(), nbytes);
if (bytes_read != -1)
bufArg.copyOut(tc->getMemProxy());
return bytes_read;
}
SyscallReturn
accessFunc(SyscallDesc *desc, int callnum, LiveProcess *p, ThreadContext *tc,
int index)

8
src/sim/syscall_emul.hh
View file

@ -439,14 +439,6 @@ futexFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
}
/// Target getdents() handler.
SyscallReturn getdentsFunc(SyscallDesc *desc, int num,
LiveProcess *process, ThreadContext *tc);
/// Target getdents64() handler.
SyscallReturn getdents64Func(SyscallDesc *desc, int num,
LiveProcess *process, ThreadContext *tc);
/// Pseudo Funcs - These functions use a different return convension,
/// returning a second value in a register other than the normal return register