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Kernel: Remove read_tsc() syscall

Browse source 
Since nothing is using this, let's just remove it. That's one less
thing to worry about.
This commit is contained in:
Andreas Kling 2020-01-03 09:27:09 +01:00
parent 23e4e03233
commit 24cc67d199
5 changed files with 1 additions and 21 deletions
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12
Kernel/Process.cpp
View file

@ -2515,18 +2515,6 @@ int Process::sys$rmdir(const char* pathname)
return VFS::the().rmdir(StringView(pathname), current_directory()); return VFS::the().rmdir(StringView(pathname), current_directory());
} }
int Process::sys$read_tsc(u32* lsw, u32* msw)
{
if (!validate_write_typed(lsw))
return -EFAULT;
if (!validate_write_typed(msw))
return -EFAULT;
read_tsc(*lsw, *msw);
if (!is_superuser())
*lsw &= ~0xfff;
return 0;
}
int Process::sys$chmod(const char* pathname, mode_t mode) int Process::sys$chmod(const char* pathname, mode_t mode)
{ {
if (!validate_read_str(pathname)) if (!validate_read_str(pathname))

1
Kernel/Process.h
View file

@ -184,7 +184,6 @@ public:
int sys$rmdir(const char* pathname); int sys$rmdir(const char* pathname);
int sys$mount(const char* device, const char* mountpoint, const char* fstype); int sys$mount(const char* device, const char* mountpoint, const char* fstype);
int sys$umount(const char* mountpoint); int sys$umount(const char* mountpoint);
int sys$read_tsc(u32* lsw, u32* msw);
int sys$chmod(const char* pathname, mode_t); int sys$chmod(const char* pathname, mode_t);
int sys$fchmod(int fd, mode_t); int sys$fchmod(int fd, mode_t);
int sys$chown(const char* pathname, uid_t, gid_t); int sys$chown(const char* pathname, uid_t, gid_t);

2
Kernel/Syscall.h
View file

@ -79,7 +79,7 @@ typedef u32 socklen_t;
__ENUMERATE_SYSCALL(select) \ __ENUMERATE_SYSCALL(select) \
__ENUMERATE_SYSCALL(unlink) \ __ENUMERATE_SYSCALL(unlink) \
__ENUMERATE_SYSCALL(poll) \ __ENUMERATE_SYSCALL(poll) \
__ENUMERATE_SYSCALL(read_tsc) \ __ENUMERATE_REMOVED_SYSCALL(read_tsc) \
__ENUMERATE_SYSCALL(rmdir) \ __ENUMERATE_SYSCALL(rmdir) \
__ENUMERATE_SYSCALL(chmod) \ __ENUMERATE_SYSCALL(chmod) \
__ENUMERATE_SYSCALL(usleep) \ __ENUMERATE_SYSCALL(usleep) \

6
Libraries/LibC/unistd.cpp
View file

@ -439,12 +439,6 @@ void sync()
syscall(SC_sync); syscall(SC_sync);
} }
int read_tsc(unsigned* lsw, unsigned* msw)
{
int rc = syscall(SC_read_tsc, lsw, msw);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int create_shared_buffer(int size, void** buffer) int create_shared_buffer(int size, void** buffer)
{ {
int rc = syscall(SC_create_shared_buffer, size, buffer); int rc = syscall(SC_create_shared_buffer, size, buffer);

1
Libraries/LibC/unistd.h
View file

@ -43,7 +43,6 @@ int release_shared_buffer(int shared_buffer_id);
int seal_shared_buffer(int shared_buffer_id); int seal_shared_buffer(int shared_buffer_id);
int get_shared_buffer_size(int shared_buffer_id); int get_shared_buffer_size(int shared_buffer_id);
int set_process_icon(int icon_id); int set_process_icon(int icon_id);
int read_tsc(unsigned* lsw, unsigned* msw);
inline int getpagesize() { return 4096; } inline int getpagesize() { return 4096; }
pid_t fork(); pid_t fork();
int execv(const char* path, char* const argv[]); int execv(const char* path, char* const argv[]);