| 1 |
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| 2 | |
| 3 | *
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| 4 | * Name: acgcc.h - GCC specific defines, etc.
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| 5 | *
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| 6 | * Copyright (C) 2000 - 2026, Intel Corp.
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| 7 | *
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| 8 | ****************************************************************************
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| 9 |
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| 10 | #ifndef __ACGCC_H__
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| 11 | #define __ACGCC_H__
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| 12 |
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| 13 | #ifndef va_arg
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| 14 | #ifdef __KERNEL__
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| 15 | #include <linux/stdarg.h>
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| 16 | #else
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| 17 | #include <stdarg.h>
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| 18 | #endif
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| 19 | #endif
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| 20 |
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| 21 | #define ACPI_INLINE __inline__
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| 22 |
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| 23 |
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| 24 |
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| 25 | #define ACPI_GET_FUNCTION_NAME __func__
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| 26 |
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| 27 | |
| 28 | * This macro is used to tag functions as "printf-like" because
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| 29 | * some compilers (like GCC) can catch printf format string problems.
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| 30 |
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| 31 | #define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1)))
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| 32 |
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| 33 | |
| 34 | * Some compilers complain about unused variables. Sometimes we don't want to
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| 35 | * use all the variables (for example, _acpi_module_name). This allows us
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| 36 | * to tell the compiler warning in a per-variable manner that a variable
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| 37 | * is unused.
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| 38 |
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| 39 | #define ACPI_UNUSED_VAR __attribute__ ((unused))
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| 40 |
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| 41 |
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| 42 |
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| 43 | #define COMPILER_VA_MACRO 1
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| 44 |
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| 45 |
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| 46 |
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| 47 | #define ACPI_USE_NATIVE_MATH64
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| 48 |
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| 49 |
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| 50 |
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| 51 | #ifndef __has_attribute
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| 52 | #define __has_attribute(x) 0
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| 53 | #endif
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| 54 |
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| 55 | |
| 56 | * Explicitly mark intentional explicit fallthrough to silence
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| 57 | * -Wimplicit-fallthrough in GCC 7.1+.
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| 58 |
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| 59 |
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| 60 | #if __has_attribute(__fallthrough__)
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| 61 | #define ACPI_FALLTHROUGH __attribute__((__fallthrough__))
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| 62 | #endif
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| 63 |
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| 64 | |
| 65 | * Flexible array members are not allowed to be part of a union under
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| 66 | * C99, but this is not for any technical reason. Work around the
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| 67 | * limitation.
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| 68 |
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| 69 | #define ACPI_FLEX_ARRAY(TYPE, NAME) \
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| 70 | struct { \
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| 71 | struct { } __Empty_ ## NAME; \
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| 72 | TYPE NAME[]; \
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| 73 | }
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| 74 |
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| 75 | |
| 76 | * Explicitly mark strings that lack a terminating NUL character so
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| 77 | * that ACPICA can be built with -Wunterminated-string-initialization.
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| 78 |
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| 79 | #if __has_attribute(__nonstring__)
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| 80 | #define ACPI_NONSTRING __attribute__((__nonstring__))
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| 81 | #endif
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| 82 |
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| 83 | #endif
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