24af8c5a52
PROT_SAO is a powerpc-specific flag to mmap(), and we rely on arch specific logic to allow it to be passed to mmap(). Add a small test to ensure mmap() accepts PROT_SAO. We don't have a good way to test that it actually causes the mapping to be created with the right flags, so for now we just touch the mapping so it's faulted in. In future we might be able to do something better. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/*
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* Copyright 2013, Michael Ellerman, IBM Corp.
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* Licensed under GPLv2.
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*/
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#ifndef _SELFTESTS_POWERPC_UTILS_H
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#define _SELFTESTS_POWERPC_UTILS_H
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#define __cacheline_aligned __attribute__((aligned(128)))
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#include <stdint.h>
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#include <stdbool.h>
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#include <linux/auxvec.h>
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#include "reg.h"
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/* Avoid headaches with PRI?64 - just use %ll? always */
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typedef unsigned long long u64;
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typedef signed long long s64;
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/* Just for familiarity */
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typedef uint32_t u32;
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typedef uint16_t u16;
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typedef uint8_t u8;
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int test_harness(int (test_function)(void), char *name);
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extern void *get_auxv_entry(int type);
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int pick_online_cpu(void);
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static inline bool have_hwcap(unsigned long ftr)
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{
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return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
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}
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static inline bool have_hwcap2(unsigned long ftr2)
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{
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return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
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}
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/* Yes, this is evil */
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#define FAIL_IF(x) \
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do { \
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if ((x)) { \
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fprintf(stderr, \
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"[FAIL] Test FAILED on line %d\n", __LINE__); \
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return 1; \
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} \
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} while (0)
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/* The test harness uses this, yes it's gross */
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#define MAGIC_SKIP_RETURN_VALUE 99
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#define SKIP_IF(x) \
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do { \
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if ((x)) { \
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fprintf(stderr, \
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"[SKIP] Test skipped on line %d\n", __LINE__); \
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return MAGIC_SKIP_RETURN_VALUE; \
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} \
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} while (0)
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#define _str(s) #s
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#define str(s) _str(s)
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/* POWER9 feature */
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#ifndef PPC_FEATURE2_ARCH_3_00
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#define PPC_FEATURE2_ARCH_3_00 0x00800000
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#endif
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#endif /* _SELFTESTS_POWERPC_UTILS_H */
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