/usr/include/xenomai/asm-powerpc/fptest.h is in libxenomai-dev 2.5.5.2-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | #ifndef _XENO_ASM_POWERPC_FPTEST_H
#define _XENO_ASM_POWERPC_FPTEST_H
#ifdef __KERNEL__
#include <linux/module.h>
#include <asm/system.h>
static inline int fp_kernel_supported(void)
{
#ifdef CONFIG_XENO_HW_MATH_EMU
static int once = 0;
if (!once) {
once = 1;
printk("Warning: math emulation code defined in kernel\n"
" no kernel-based FPU support for this platform\n");
}
return 0;
#else
return 1;
#endif
}
static inline int fp_linux_begin(void)
{
return -ENOSYS;
}
static inline void fp_linux_end(void)
{
}
#else /* !__KERNEL__ */
#include <stdint.h>
#include <stdio.h>
#define printk printf
#endif /* !__KERNEL__ */
static inline void fp_regs_set(unsigned val)
{
uint64_t fpval = val;
__asm__ __volatile__("lfd 0, %0\n"
" fmr 1, 0\n"
" fmr 2, 0\n"
" fmr 3, 0\n"
" fmr 4, 0\n"
" fmr 5, 0\n"
" fmr 6, 0\n"
" fmr 7, 0\n"
" fmr 8, 0\n"
" fmr 9, 0\n"
" fmr 10, 0\n"
" fmr 11, 0\n"
" fmr 12, 0\n"
" fmr 13, 0\n"
" fmr 14, 0\n"
" fmr 15, 0\n"
" fmr 16, 0\n"
" fmr 17, 0\n"
" fmr 18, 0\n"
" fmr 19, 0\n"
" fmr 20, 0\n"
" fmr 21, 0\n"
" fmr 22, 0\n"
" fmr 23, 0\n"
" fmr 24, 0\n"
" fmr 25, 0\n"
" fmr 26, 0\n"
" fmr 27, 0\n"
" fmr 28, 0\n"
" fmr 29, 0\n"
" fmr 30, 0\n"
" fmr 31, 0\n"::"m"(fpval));
}
#define FPTEST_REGVAL(n) { \
uint64_t t; \
__asm__ __volatile__(" stfd " #n ", %0" : "=m" (t)); \
e[n] = (unsigned)t; \
}
static inline unsigned fp_regs_check(unsigned val)
{
unsigned i, result = val;
uint32_t e[32];
FPTEST_REGVAL(0);
FPTEST_REGVAL(1);
FPTEST_REGVAL(2);
FPTEST_REGVAL(3);
FPTEST_REGVAL(4);
FPTEST_REGVAL(5);
FPTEST_REGVAL(6);
FPTEST_REGVAL(7);
FPTEST_REGVAL(8);
FPTEST_REGVAL(9);
FPTEST_REGVAL(10);
FPTEST_REGVAL(11);
FPTEST_REGVAL(12);
FPTEST_REGVAL(13);
FPTEST_REGVAL(14);
FPTEST_REGVAL(15);
FPTEST_REGVAL(16);
FPTEST_REGVAL(17);
FPTEST_REGVAL(18);
FPTEST_REGVAL(19);
FPTEST_REGVAL(20);
FPTEST_REGVAL(21);
FPTEST_REGVAL(22);
FPTEST_REGVAL(23);
FPTEST_REGVAL(24);
FPTEST_REGVAL(25);
FPTEST_REGVAL(26);
FPTEST_REGVAL(27);
FPTEST_REGVAL(28);
FPTEST_REGVAL(29);
FPTEST_REGVAL(30);
FPTEST_REGVAL(31);
for (i = 0; i < 32; i++)
if (e[i] != val) {
printk("r%d: %u != %u\n", i, e[i], val);
result = e[i];
}
return result;
}
#endif /* !_XENO_ASM_POWERPC_FPTEST_H */
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