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https://github.com/ibm-s390-linux/s390-tools.git
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a645ec0fc0
Add generic functions util_sysdir(); util_sysdir_path() and their special cases supplied for users: util_libdir(); util_libdir_path(); util_datadir(); util_datadir_path() The function util_sysdir() determines the absolute name of a s390-tools system directory. It could be data, or library directory. The function util_sysdir_path() determines the absolute name of a file installed in the s390-tools system directory. The function util_libdir() determines the absolute name of a s390-tools library directory. By default that name is defined by the compile-time macro TOOLS_LIBDIR (/lib/s390-tools). Users can specify an override by setting environment variable S390TOOLS_LIBDIR. The function util_libdir_path() determines the absolute name of a file installed in the s390-tools library directory. The function util_datadir() determines the absolute name of a s390-tools system data directory. By default the name is defined by the compile-time macro TOOLS_DATADIR (/usr/share/s390-tools/). Users can specify an override by setting environment variable S390TOOLS_DATADIR. The function util_datadir_path() determines the absolute name of a file installed in the s390-tools data directory. The ability to override the setting for TOOLS_LIBDIR and TOOLS_DATADIR is required for implementing tests on tools that are not installed in their default system path locations. Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com> Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/*
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* s390-tools/include/zt_common.h
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* common s390-tools definitions.
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*
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* Copyright IBM Corp. 2004, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*
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*/
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#ifndef LIB_ZT_COMMON_H
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#define LIB_ZT_COMMON_H
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#define STRINGIFY_1(x) #x
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#define STRINGIFY(x) STRINGIFY_1(x)
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/* Use this macro to make constant macros usable in both assembler and
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* C code.
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*
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* Usage example:
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* #define IMAGE_ENTRY _AC(0x10000, UL)
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*/
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#ifdef __ASSEMBLER__
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#define _AC(X, TYPE) X
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#else
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#define _AC(X, TYPE) X##TYPE
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#endif
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#ifndef __ASSEMBLER__
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#ifdef UNUSED
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#elif defined(__GNUC__)
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# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
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#else
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# define UNUSED(x) x
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#endif
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#ifdef STATIC_ASSERT
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#elif defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ >= 5)
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# define STATIC_ASSERT(test) _Static_assert((test), "(" #test ") failed");
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#else
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# define STATIC_ASSERT(test)
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#endif
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#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1)
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#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#define RELEASE_STRING STRINGIFY (S390_TOOLS_RELEASE)
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#define TOOLS_LIBDIR STRINGIFY (S390_TOOLS_LIBDIR)
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#define TOOLS_SYSCONFDIR STRINGIFY (S390_TOOLS_SYSCONFDIR)
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#define TOOLS_BINDIR STRINGIFY (S390_TOOLS_BINDIR)
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#define TOOLS_DATADIR STRINGIFY (S390_TOOLS_DATADIR)
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#define __noreturn __attribute__((noreturn))
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#define __packed __attribute__((packed))
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#define __aligned(x) __attribute__((aligned(x)))
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#define __may_alias __attribute__((may_alias))
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#define __section(x) __attribute__((__section__(#x)))
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#define __noinline __attribute__((__noinline__))
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/* The Linux kernel (in stddef.h) and glibc (sys/cdefs.h) define
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* __always_inline. Therefore undefine it first to allow the headers
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* to be included first.
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*/
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#undef __always_inline
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#define __always_inline inline __attribute__((always_inline))
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#define __pa32(x) ((uint32_t)(unsigned long)(x))
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#define __pa(x) ((unsigned long)(x))
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#define barrier() __asm__ __volatile__("": : :"memory")
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#undef MIN
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#define MIN(x, y) \
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({ \
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__typeof__(x) _x = (x); \
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__typeof__(y) _y = (y); \
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\
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_x < _y ? _x : _y; \
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})
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#undef MAX
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#define MAX(x, y) \
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({ \
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__typeof__(x) _x = (x); \
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__typeof__(y) _y = (y); \
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\
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_x > _y ? _x : _y; \
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})
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typedef unsigned long long u64;
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typedef signed long long s64;
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typedef unsigned int u32;
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typedef signed int s32;
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typedef unsigned short int u16;
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typedef signed short int s16;
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typedef unsigned char u8;
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typedef signed char s8;
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#endif /* __ASSEMBLER__ */
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#endif /* LIB_ZT_COMMON_H */
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