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Fixed the usage of CHECK_USER_ADDRESS(). R5 has the inverse memory layout, so we need to adjust the KERNEL_BASE macro when compiling for it.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4853 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2003-09-29 18:50:02 +00:00
parent 6c27ff9492
commit eae4df8320
1 changed files with 8 additions and 2 deletions
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10
headers/private/kernel/util/syscall_args.h
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@ -5,13 +5,19 @@
#include <vm.h>
// Hack to be able to use the CHECK_USER_ADDRESS macro when compiling for R5.
#ifdef R5_MEMORY_LAYOUT
# undef KERNEL_BASE
# define KERNEL_BASE 0x0
#endif
// copy_ref_var_from_user
template<typename T>
inline
status_t
copy_ref_var_from_user(T *user, T &kernel)
{
if (CHECK_USER_ADDRESS(user))
if (!CHECK_USER_ADDRESS(user))
return B_BAD_ADDRESS;
return user_memcpy(&kernel, user, sizeof(T));
}
@ -22,7 +28,7 @@ inline
status_t
copy_ref_var_to_user(T &kernel, T *user)
{
if (CHECK_USER_ADDRESS(user))
if (!CHECK_USER_ADDRESS(user))
return B_BAD_ADDRESS;
return user_memcpy(user, &kernel, sizeof(T));
}