a431b946db
Perform an exec() class syscall with a suspended transaction.
This is a test for the bug we fixed in 8e96a87c5431 ("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>
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/*
|
|
* Copyright 2015, Michael Ellerman, IBM Corp.
|
|
* Licensed under GPLv2.
|
|
*/
|
|
|
|
#ifndef _SELFTESTS_POWERPC_TM_TM_H
|
|
#define _SELFTESTS_POWERPC_TM_TM_H
|
|
|
|
#include <asm/tm.h>
|
|
#include <asm/cputable.h>
|
|
#include <stdbool.h>
|
|
|
|
#include "../utils.h"
|
|
|
|
static inline bool have_htm(void)
|
|
{
|
|
#ifdef PPC_FEATURE2_HTM
|
|
return have_hwcap2(PPC_FEATURE2_HTM);
|
|
#else
|
|
printf("PPC_FEATURE2_HTM not defined, can't check AT_HWCAP2\n");
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
static inline bool have_htm_nosc(void)
|
|
{
|
|
#ifdef PPC_FEATURE2_HTM_NOSC
|
|
return have_hwcap2(PPC_FEATURE2_HTM_NOSC);
|
|
#else
|
|
printf("PPC_FEATURE2_HTM_NOSC not defined, can't check AT_HWCAP2\n");
|
|
return false;
|
|
#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 */
|