pkey_get() and pkey_set() are implemented since glibc-2.27, here just
rename pkey_get|pkey_set to _pkey_get|_pkey_set simply
the compiling errors are like:
------------
protection_keys.c:399:5: error: conflicting types for 'pkey_get'
u32 pkey_get(int pkey, unsigned long flags)
^
In file included from /usr/include/bits/mman-linux.h:115:0,
from /usr/include/bits/mman.h:45,
from /usr/include/sys/mman.h:41,
from protection_keys.c:37:
/usr/include/bits/mman-shared.h:64:5: note: previous declaration of 'pkey_get' was here
int pkey_get (int __key) __THROW;
^
protection_keys.c:421:5: error: conflicting types for 'pkey_set'
int pkey_set(int pkey, unsigned long rights, unsigned long flags)
^
In file included from /usr/include/bits/mman-linux.h:115:0,
from /usr/include/bits/mman.h:45,
from /usr/include/sys/mman.h:41,
from protection_keys.c:37:
/usr/include/bits/mman-shared.h:60:5: note: previous declaration of 'pkey_set' was here
int pkey_set (int __key, unsigned int __access_rights) __THROW;
^
------------
Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxxxxx>
---
tools/testing/selftests/x86/protection_keys.c | 32 +++++++++++++++------------
1 file changed, 18 insertions(+), 14 deletions(-)
diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c
index 757bb16..ccbd81f 100644
--- a/tools/testing/selftests/x86/protection_keys.c
+++ b/tools/testing/selftests/x86/protection_keys.c
@@ -397,10 +397,14 @@ pid_t fork_lazy_child(void)
return forkret;
}
-#define PKEY_DISABLE_ACCESS 0x1
-#define PKEY_DISABLE_WRITE 0x2
+#ifndef PKEY_DISABLE_ACCESS
+# define PKEY_DISABLE_ACCESS 0x1
+#endif
+#ifndef PKEY_DISABLE_WRITE
+# define PKEY_DISABLE_WRITE 0x2
+#endif
-u32 pkey_get(int pkey, unsigned long flags)
+u32 _pkey_get(int pkey, unsigned long flags)
{
u32 mask = (PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE);
u32 pkru = __rdpkru();
@@ -422,7 +426,7 @@ u32 pkey_get(int pkey, unsigned long flags)
return masked_pkru;
}
-int pkey_set(int pkey, unsigned long rights, unsigned long flags)
+int _pkey_set(int pkey, unsigned long rights, unsigned long flags)
{
u32 mask = (PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE);
u32 old_pkru = __rdpkru();
@@ -456,15 +460,15 @@ void pkey_disable_set(int pkey, int flags)
pkey, flags);
pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
- pkey_rights = pkey_get(pkey, syscall_flags);
+ pkey_rights = _pkey_get(pkey, syscall_flags);
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ dprintf1("%s(%d) _pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
pkey_assert(pkey_rights >= 0);
pkey_rights |= flags;
- ret = pkey_set(pkey, pkey_rights, syscall_flags);
+ ret = _pkey_set(pkey, pkey_rights, syscall_flags);
assert(!ret);
/*pkru and flags have the same format */
shadow_pkru |= flags << (pkey * 2);
@@ -472,8 +476,8 @@ void pkey_disable_set(int pkey, int flags)
pkey_assert(ret >= 0);
- pkey_rights = pkey_get(pkey, syscall_flags);
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ pkey_rights = _pkey_get(pkey, syscall_flags);
+ dprintf1("%s(%d) _pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
dprintf1("%s(%d) pkru: 0x%x\n", __func__, pkey, rdpkru());
@@ -487,24 +491,24 @@ void pkey_disable_clear(int pkey, int flags)
{
unsigned long syscall_flags = 0;
int ret;
- int pkey_rights = pkey_get(pkey, syscall_flags);
+ int pkey_rights = _pkey_get(pkey, syscall_flags);
u32 orig_pkru = rdpkru();
pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ dprintf1("%s(%d) _pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
pkey_assert(pkey_rights >= 0);
pkey_rights |= flags;
- ret = pkey_set(pkey, pkey_rights, 0);
+ ret = _pkey_set(pkey, pkey_rights, 0);
/* pkru and flags have the same format */
shadow_pkru &= ~(flags << (pkey * 2));
pkey_assert(ret >= 0);
- pkey_rights = pkey_get(pkey, syscall_flags);
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ pkey_rights = _pkey_get(pkey, syscall_flags);
+ dprintf1("%s(%d) _pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
dprintf1("%s(%d) pkru: 0x%x\n", __func__, pkey, rdpkru());
--
2.7.4
--
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