diff options
Diffstat (limited to 'sim/syscall_emul.cc')
| -rw-r--r-- | sim/syscall_emul.cc | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/sim/syscall_emul.cc b/sim/syscall_emul.cc index 22d62e4d1..13df2b7a2 100644 --- a/sim/syscall_emul.cc +++ b/sim/syscall_emul.cc @@ -193,7 +193,7 @@ gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc) SyscallReturn unlinkFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc) { - std::string path; + string path; if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault) return (TheISA::IntReg)-EFAULT; @@ -205,17 +205,44 @@ unlinkFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc) SyscallReturn renameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc) { - std::string old_name; + string old_name; if (xc->mem->readString(old_name, xc->getSyscallArg(0)) != No_Fault) return -EFAULT; - std::string new_name; + string new_name; if (xc->mem->readString(new_name, xc->getSyscallArg(1)) != No_Fault) return -EFAULT; - int64_t result = rename(old_name.c_str(),new_name.c_str()); + int64_t result = rename(old_name.c_str(), new_name.c_str()); return (result == -1) ? -errno : result; } +SyscallReturn +truncateFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc) +{ + string path; + + if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault) + return -EFAULT; + + off_t length = xc->getSyscallArg(1); + + int result = truncate(path.c_str(), length); + return (result == -1) ? -errno : result; +} + +SyscallReturn +ftruncateFunc(SyscallDesc *desc, int num, Process *process, ExecContext *xc) +{ + int fd = process->sim_fd(xc->getSyscallArg(0)); + + if (fd < 0) + return -EBADF; + + off_t length = xc->getSyscallArg(1); + + int result = ftruncate(fd, length); + return (result == -1) ? -errno : result; +} |