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Kernel: Use Userspace<T> for the times syscall

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This commit is contained in:
Brian Gianforcaro 2020-08-09 12:26:56 -07:00 • committed by Andreas Kling
parent e7728ca8fd
commit 7943655838
2 changed files with 12 additions and 7 deletions
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17
Kernel/Syscalls/times.cpp
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@ -28,15 +28,20 @@
namespace Kernel {
clock_t Process::sys$times(tms* times)
clock_t Process::sys$times(Userspace<tms*> user_times)
{
REQUIRE_PROMISE(stdio);
if (!validate_write_typed(times))
if (!validate_write_typed(user_times))
return -EFAULT;
copy_to_user(&times->tms_utime, &m_ticks_in_user);
copy_to_user(&times->tms_stime, &m_ticks_in_kernel);
copy_to_user(&times->tms_cutime, &m_ticks_in_user_for_dead_children);
copy_to_user(&times->tms_cstime, &m_ticks_in_kernel_for_dead_children);
tms times = {};
times.tms_utime = m_ticks_in_user;
times.tms_stime = m_ticks_in_kernel;
times.tms_cutime = m_ticks_in_user_for_dead_children;
times.tms_cstime = m_ticks_in_kernel_for_dead_children;
copy_to_user(user_times, &times);
return g_uptime & 0x7fffffff;
}