diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 8bfe491..91360a0 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -26,6 +26,7 @@ #include "tcg/startup.h" #include "target_mman.h" #include "exec/page-protection.h" +#include "exec/mmap-lock.h" #include "exec/tb-flush.h" #include "exec/translation-block.h" #include <elf.h> @@ -789,6 +790,10 @@ safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff, int, outfd, loff_t *, poutoff, size_t, length, unsigned int, flags) #endif +#if defined(TARGET_NR_fchmodat2) && defined(__NR_fchmodat2) +safe_syscall4(int, fchmodat2, int, dfd, const char *, filename, + unsigned short, mode, unsigned int, flags) +#endif /* We do ioctl like this rather than via safe_syscall3 to preserve the * "third argument might be integer or pointer or not present" behaviour of @@ -6742,10 +6747,9 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, int pid_child = ret; pid_fd = pidfd_open(pid_child, 0); if (pid_fd >= 0) { - fcntl(pid_fd, F_SETFD, fcntl(pid_fd, F_GETFL) - | FD_CLOEXEC); + qemu_set_cloexec(pid_fd); } else { - pid_fd = 0; + pid_fd = 0; } #endif put_user_u32(pid_fd, parent_tidptr); @@ -8134,8 +8138,8 @@ static void open_self_maps_4(const struct open_self_maps_data *d, * Callback for walk_memory_regions, when read_self_maps() fails. * Proceed without the benefit of host /proc/self/maps cross-check. */ -static int open_self_maps_3(void *opaque, target_ulong guest_start, - target_ulong guest_end, unsigned long flags) +static int open_self_maps_3(void *opaque, vaddr guest_start, + vaddr guest_end, int flags) { static const MapInfo mi = { .is_priv = true }; @@ -8146,8 +8150,8 @@ static int open_self_maps_3(void *opaque, target_ulong guest_start, /* * Callback for walk_memory_regions, when read_self_maps() succeeds. */ -static int open_self_maps_2(void *opaque, target_ulong guest_start, - target_ulong guest_end, unsigned long flags) +static int open_self_maps_2(void *opaque, vaddr guest_start, + vaddr guest_end, int flags) { const struct open_self_maps_data *d = opaque; uintptr_t host_start = (uintptr_t)g2h_untagged(guest_start); @@ -8234,6 +8238,9 @@ static int open_self_stat(CPUArchState *cpu_env, int fd) } else if (i == 3) { /* ppid */ g_string_printf(buf, FMT_pid " ", getppid()); + } else if (i == 4) { + /* pgid */ + g_string_printf(buf, FMT_pid " ", getpgrp()); } else if (i == 19) { /* num_threads */ int cpus = 0; @@ -10710,6 +10717,15 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1, unlock_user(p, arg2, 0); return ret; #endif +#if defined(TARGET_NR_fchmodat2) && defined(__NR_fchmodat2) + case TARGET_NR_fchmodat2: + if (!(p = lock_user_string(arg2))) { + return -TARGET_EFAULT; + } + ret = get_errno(safe_fchmodat2(arg1, p, arg3, arg4)); + unlock_user(p, arg2, 0); + return ret; +#endif case TARGET_NR_getpriority: /* Note that negative values are valid for getpriority, so we must differentiate based on errno settings. */ @@ -11626,10 +11642,14 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1, case TARGET_NR_nanosleep: { struct timespec req, rem; - target_to_host_timespec(&req, arg1); + if (target_to_host_timespec(&req, arg1)) { + return -TARGET_EFAULT; + } ret = get_errno(safe_nanosleep(&req, &rem)); if (is_error(ret) && arg2) { - host_to_target_timespec(arg2, &rem); + if (host_to_target_timespec(arg2, &rem)) { + return -TARGET_EFAULT; + } } } return ret; |