File Content: acgcc.h /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ /****************************************************************************** * * Name: acgcc.h - GCC specific defines, etc. * * Copyright (C) 2000 - 2021, Intel Corp. * *****************************************************************************/ #ifndef __ACGCC_H__ #define __ACGCC_H__ /* * Use compiler specific <stdarg.h> is a good practice for even when * -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined. */ #ifndef va_arg #ifdef ACPI_USE_BUILTIN_STDARG typedef __builtin_va_list va_list; #define va_start(v, l) __builtin_va_start(v, l) #define va_end(v) __builtin_va_end(v) #define va_arg(v, l) __builtin_va_arg(v, l) #define va_copy(d, s) __builtin_va_copy(d, s) #else #ifdef __KERNEL__ #include <linux/stdarg.h> #else /* Used to build acpi tools */ #include <stdarg.h> #endif /* __KERNEL__ */ #endif /* ACPI_USE_BUILTIN_STDARG */ #endif /* ! va_arg */ #define ACPI_INLINE __inline__ /* Function name is used for debug output. Non-ANSI, compiler-dependent */ #define ACPI_GET_FUNCTION_NAME __func__ /* * This macro is used to tag functions as "printf-like" because * some compilers (like GCC) can catch printf format string problems. */ #define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1))) /* * Some compilers complain about unused variables. Sometimes we don't want to * use all the variables (for example, _acpi_module_name). This allows us * to tell the compiler warning in a per-variable manner that a variable * is unused. */ #define ACPI_UNUSED_VAR __attribute__ ((unused)) /* GCC supports __VA_ARGS__ in macros */ #define COMPILER_VA_MACRO 1 /* GCC supports native multiply/shift on 32-bit platforms */ #define ACPI_USE_NATIVE_MATH64 /* GCC did not support __has_attribute until 5.1. */ #ifndef __has_attribute #define __has_attribute(x) 0 #endif /* * Explicitly mark intentional explicit fallthrough to silence * -Wimplicit-fallthrough in GCC 7.1+. */ #if __has_attribute(__fallthrough__) #define ACPI_FALLTHROUGH __attribute__((__fallthrough__)) #endif #endif /* __ACGCC_H__ */ Submit