Skip to content

Commit

Permalink
rvvm_user: Implement prlimit(), sysinfo()
Browse files Browse the repository at this point in the history
  • Loading branch information
@LekKit
LekKit authored Jan 14, 2024
1 parent 38eade6 commit 0712074
Showing 1 changed file with 36 additions and 23 deletions.
59 changes: 36 additions & 23 deletions src/rvvm_user.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,8 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <sys/epoll.h>
#include <sys/vfs.h>
#include <sys/socket.h>
#include <sys/resource.h>
#include <sys/sysinfo.h>

// Put syscall headers here
#include <linux/futex.h> /* Definition of FUTEX_* constants */
Expand Down Expand Up @@ -371,6 +373,7 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(fcntl(a0, a1, a2));
break;
case 29: // ioctl
// TODO: I sure hope not many ioctl() interfaces need struct conversion...
rvvm_info("sys_ioctl(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(ioctl(a0, a1, a2));
break;
Expand Down Expand Up @@ -434,9 +437,10 @@ void* rvvm_user_thread(void* arg)
break;
case 59: // pipe2
rvvm_info("sys_pipe2(%lx, %lx)", a0, a1);
a0 = errno_ret(pipe2((void*)a0, a1));
a0 = errno_ret(pipe2((int*)a0, a1));
break;
case 61: // getdents64
// TODO: struct conversion(?)
rvvm_info("sys_getdents64(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(syscall(SYS_getdents64, a0, a1, a2));
break;
Expand All @@ -453,12 +457,12 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(write(a0, (const void*)a1, a2));
break;
case 65: // readv
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_readv(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(readv(a0, (const void*)a1, a2));
break;
case 66: // writev
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_writev(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(writev(a0, (const void*)a1, a2));
break;
Expand All @@ -471,12 +475,12 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(pwrite(a0, (const void*)a1, a2, a3));
break;
case 72: // pselect6_time32
// TODO struct conversion(?)
// TODO: struct conversion
rvvm_info("sys_pselect6_time32(%lx, %lx, %lx, %lx, %lx, %lx)", a0, a1, a2, a3, a4, a5);
a0 = pselect(a0, (void*)a1, (void*)a2, (void*)a3, (void*)a4, (void*)a5);
break;
case 73: // ppoll_time32
// TODO struct conversion
// TODO: struct conversion
rvvm_info("sys_ppoll_time32(%lx, %lx, %lx, %lx, %lx)", a0, a1, a2, a3, a4);
a0 = ppoll((void*)a0, a1, (void*)a2, (void*)a3);
break;
Expand Down Expand Up @@ -519,13 +523,13 @@ void* rvvm_user_thread(void* arg)
a0 = -38; // ENOSYS
break;
case 113: // clock_gettime
// TODO struct conversion
// TODO: struct conversion?
rvvm_info("sys_clock_gettime(%lx, %lx)", a0, a1);
a0 = errno_ret(clock_gettime(a0, (void*)a1));
break;
case 115: // clock_nanosleep
// TODO struct conversion
//rvvm_info("sys_clock_nanosleep(%lx, %lx, %lx, %lx)", a0, a1, a2, a3);
// TODO: struct conversion?
rvvm_info("sys_clock_nanosleep(%lx, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = errno_ret(clock_nanosleep(a0, a1, (const void*)a2, (void*)a3));
break;
case 129: // kill
Expand All @@ -538,7 +542,7 @@ void* rvvm_user_thread(void* arg)
break;
case 134: // rt_sigaction
// TODO: segv with this thing
// TODO struct conversion
// TODO: struct conversion
rvvm_info("sys_rt_sigaction(%ld, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = -38;//errno_ret(sigaction(a0, (const void*)a1, (void*)a2));
break;
Expand All @@ -556,7 +560,7 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(setuid(a0));
break;
case 153: // times
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_times(%lx)", a0);
a0 = errno_ret(times((void*)a0));
break;
Expand Down Expand Up @@ -619,6 +623,11 @@ void* rvvm_user_thread(void* arg)
rvvm_info("sys_gettid()");
a0 = errno_ret(gettid());
break;
case 179: // sysinfo
// TODO: struct conversion(?)
rvvm_info("sys_sysinfo(%lx)", a0);
a0 = errno_ret(sysinfo((void*)a0));
break;
case 194: // shmget
rvvm_info("sys_shmget(%lx, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(shmget(a0, a1, a2));
Expand All @@ -635,6 +644,10 @@ void* rvvm_user_thread(void* arg)
rvvm_info("sys_socket(%lx, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(socket(a0, a1, a2));
break;
case 199: // socketpair
rvvm_info("sys_socketpair(%lx, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = errno_ret(socketpair(a0, a1, a2, (int*)a3));
break;
case 200: // bind
// TODO struct conversion
rvvm_info("sys_bind(%ld, %lx, %lx)", a0, a1, a2);
Expand All @@ -645,32 +658,32 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(listen(a0, a1));
break;
case 202: // accept
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_accept(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(accept(a0, (void*)a1, (void*)a2));
break;
case 203: // connect
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_connect(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(connect(a0, (void*)a1, a2));
break;
case 204: // getsockname
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_getsockname(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(getsockname(a0, (void*)a1, (void*)a2));
break;
case 205: // getpeername
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_getpeername(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(getpeername(a0, (void*)a1, (void*)a2));
break;
case 206: // sendto
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_sendto(%ld, %lx, %lx, %lx, %lx, %lx)", a0, a1, a2, a3, a4, a5);
a0 = errno_ret(sendto(a0, (const void*)a1, a2, a3, (void*)a4, a5));
break;
case 207: // recvfrom
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_recvfrom(%ld, %lx, %lx, %lx, %lx, %lx)", a0, a1, a2, a3, a4, a5);
a0 = errno_ret(recvfrom(a0, (void*)a1, a2, a3, (void*)a4, (void*)a5));
break;
Expand All @@ -687,7 +700,7 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(shutdown(a0, a1));
break;
case 212: // recvmsg
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_recvmsg(%ld, %lx, %lx)", a0, a1, a2);
a0 = errno_ret(recvmsg(a0, (void*)a1, a2));
break;
Expand All @@ -704,11 +717,11 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret((size_t)mremap((void*)a0, a1, a2, a3, (void*)a4));
break;
case 220: // clone
rvvm_warn("sys_clone(%lx, %lx, %lx, %lx, %lx)", a0, a1, a2, a3, a4);
if (a0 & 0x100) {
// CLONE_VM (Aka fork for threads)
// TODO this is spectacularly broken I guess
rvvm_cpu_handle_t thread = rvvm_create_user_thread(proc_ctx);
rvvm_warn("sys_clone(%lx, %lx, %lx, %lx, %lx)", a0, a1, a2, a3, a4);
rvvm_write_cpu_reg(thread, RVVM_REGID_PC, rvvm_read_cpu_reg(cpu, RVVM_REGID_PC));
rvvm_write_cpu_reg(thread, RVVM_REGID_X0 + 2, a1); // sp
rvvm_write_cpu_reg(thread, RVVM_REGID_X0 + 4, a4); // tp
Expand All @@ -735,19 +748,19 @@ void* rvvm_user_thread(void* arg)
a0 = errno_ret(madvise((void*)a0, a1, a2));
break;
case 242: // accept4
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_accept4(%ld, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = errno_ret(accept4(a0, (void*)a1, (void*)a2, a3));
break;
case 260: // wait4
// TODO struct conversion
// TODO: struct conversion(?)
rvvm_info("sys_wait4(%lx, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = errno_ret(wait4(a0, (void*)a1, a2, (void*)a3));
break;
case 261: // prlimit64
// TODO struct conversion
rvvm_warn("sys_prlimit64(%lx, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = 0;
// TODO: struct conversion(?)
rvvm_info("sys_prlimit64(%lx, %lx, %lx, %lx)", a0, a1, a2, a3);
a0 = errno_ret(prlimit(a0, a1, (const void*)a2, (void*)a3));
break;
case 276: // renameat2
rvvm_info("sys_renameat2(%ld, %s, %ld, %s, %lx)", a0, (const char*)a1, a2, (const char*)a3, a4);
Expand Down

0 comments on commit 0712074

Please sign in to comment.