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selftests/powerpc: exec() with suspended transaction

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Perform an exec() class syscall with a suspended transaction.

This is a test for the bug we fixed in 8e96a87c54 ("powerpc/tm: Always
reclaim in start_thread() for exec() class syscalls").

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
[mpe: Fix build errors, use a single binary for the test]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Cyril Bur
2016-06-29 21:41:51 +10:00
committed by Michael Ellerman
parent dd57023747
commit a431b946db
5 changed files with 98 additions and 18 deletions
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23
tools/testing/selftests/powerpc/tm/tm.h
View File

@@ -6,8 +6,9 @@
#ifndef _SELFTESTS_POWERPC_TM_TM_H
#define _SELFTESTS_POWERPC_TM_TM_H
#include <stdbool.h>
#include <asm/tm.h>
#include <asm/cputable.h>
#include <stdbool.h>
#include "../utils.h"
@@ -31,4 +32,24 @@ static inline bool have_htm_nosc(void)
#endif
}
static inline long failure_code(void)
{
return __builtin_get_texasru() >> 24;
}
static inline bool failure_is_persistent(void)
{
return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT;
}
static inline bool failure_is_syscall(void)
{
return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL;
}
static inline bool failure_is_nesting(void)
{
return (__builtin_get_texasru() & 0x400000);
}
#endif /* _SELFTESTS_POWERPC_TM_TM_H */