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39
40#ifndef MINIMUMLINUX_P_H
41#define MINIMUMLINUX_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54// EXTRA WARNING
55// -------------
56//
57// This file must also be valid assembler source.
58//
59
60#include "private/qglobal_p.h"
61
62QT_BEGIN_NAMESPACE
63
64/* Minimum Linux kernel version:
65 * We require the following features in Qt (unconditional, no fallback):
66 * Feature Added in version Macro
67 * - inotify_init1 before 2.6.12-rc12
68 * - futex(2) before 2.6.12-rc12
69 * - FUTEX_WAKE_OP 2.6.14 FUTEX_OP
70 * - linkat(2) 2.6.17 O_TMPFILE && QT_CONFIG(linkat)
71 * - FUTEX_PRIVATE_FLAG 2.6.22
72 * - O_CLOEXEC 2.6.23
73 * - eventfd 2.6.23
74 * - pipe2 & dup3 2.6.27
75 * - accept4 2.6.28
76 * - renameat2 3.16 QT_CONFIG(renameat2)
77 * - getrandom 3.17 QT_CONFIG(getentropy)
78 * - statx 4.11 QT_CONFIG(statx)
79 */
80
81#if QT_CONFIG(statx) && !QT_CONFIG(glibc)
82// if using glibc, the statx() function in sysdeps/unix/sysv/linux/statx.c
83// falls back to stat() for us.
84// (Using QT_CONFIG(glibc) instead of __GLIBC__ because the macros aren't
85// defined in assembler mode)
86# define MINLINUX_MAJOR 4
87# define MINLINUX_MINOR 11
88# define MINLINUX_PATCH 0
89#elif QT_CONFIG(getentropy)
90# define MINLINUX_MAJOR 3
91# define MINLINUX_MINOR 17
92# define MINLINUX_PATCH 0
93#elif QT_CONFIG(renameat2)
94# define MINLINUX_MAJOR 3
95# define MINLINUX_MINOR 16
96# define MINLINUX_PATCH 0
97#else
98# define MINLINUX_MAJOR 2
99# define MINLINUX_MINOR 6
100# define MINLINUX_PATCH 28
101#endif
102
103#define MINIMUM_LINUX_VERSION QT_VERSION_CHECK(MINLINUX_MAJOR, MINLINUX_MINOR, MINLINUX_PATCH)
104
105QT_END_NAMESPACE
106
107#endif // MINIMUMLINUX_P_H
108

source code of qtbase/src/corelib/global/minimum-linux_p.h