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LibC+Kernel: Switch off_t to 64 bits

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This commit is contained in:
Jean-Baptiste Boric 2021-03-13 22:02:54 +01:00 • committed by Andreas Kling
parent b05b4d4b24
commit 7a079f7780
7 changed files with 23 additions and 13 deletions
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2
Kernel/API/Syscall.h
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@ -244,7 +244,7 @@ struct SC_mmap_params {
int32_t prot;
int32_t flags;
int32_t fd;
ssize_t offset;
int64_t offset;
StringArgument name;
};

4
Kernel/Process.h
View file

@ -276,7 +276,6 @@ public:
KResultOr<int> sys$dump_backtrace();
KResultOr<pid_t> sys$gettid();
KResultOr<int> sys$donate(pid_t tid);
KResultOr<int> sys$ftruncate(int fd, off_t);
KResultOr<pid_t> sys$setsid();
KResultOr<pid_t> sys$getsid(pid_t);
KResultOr<int> sys$setpgid(pid_t pid, pid_t pgid);
@ -299,7 +298,8 @@ public:
KResultOr<ssize_t> sys$writev(int fd, Userspace<const struct iovec*> iov, int iov_count);
KResultOr<int> sys$fstat(int fd, Userspace<stat*>);
KResultOr<int> sys$stat(Userspace<const Syscall::SC_stat_params*>);
KResultOr<int> sys$lseek(int fd, off_t, int whence);
KResultOr<int> sys$lseek(int fd, Userspace<off_t*>, int whence);
KResultOr<int> sys$ftruncate(int fd, Userspace<off_t*>);
KResultOr<int> sys$kill(pid_t pid_or_pgid, int sig);
[[noreturn]] void sys$exit(int status);
KResultOr<int> sys$sigreturn(RegisterState& registers);

5
Kernel/Syscalls/ftruncate.cpp
View file

@ -29,9 +29,12 @@
namespace Kernel {
KResultOr<int> Process::sys$ftruncate(int fd, off_t length)
KResultOr<int> Process::sys$ftruncate(int fd, Userspace<off_t*> userspace_length)
{
REQUIRE_PROMISE(stdio);
off_t length;
if (!copy_from_user(&length, userspace_length))
return EFAULT;
if (length < 0)
return EINVAL;
auto description = file_description(fd);

13
Kernel/Syscalls/lseek.cpp
View file

@ -29,13 +29,22 @@
namespace Kernel {
KResultOr<int> Process::sys$lseek(int fd, off_t offset, int whence)
KResultOr<int> Process::sys$lseek(int fd, Userspace<off_t*> userspace_offset, int whence)
{
REQUIRE_PROMISE(stdio);
auto description = file_description(fd);
if (!description)
return EBADF;
return description->seek(offset, whence);
off_t offset;
if (!copy_from_user(&offset, userspace_offset))
return EFAULT;
offset = description->seek(offset, whence);
if (!copy_to_user(userspace_offset, &offset))
return EFAULT;
if (offset < 0)
return offset;
else
return 0;
}
}

4
Kernel/UnixTypes.h
View file

@ -424,9 +424,7 @@ struct sigaction {
#define CLD_STOPPED 4
#define CLD_CONTINUED 5
#define OFF_T_MAX 2147483647
typedef ssize_t off_t;
typedef i64 off_t;
typedef i64 time_t;
struct utimbuf {