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m4/mpers.m4
245 строк
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Dmitry V. Levin
Update copyright headers
22 янв 2025, 11:00
22 янв 2025, 11:00
7a05607
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#!/usr/bin/m4 # # Copyright (c) 2015-2017 Dmitry V. Levin <ldv@strace.io> # Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com> # Copyright (c) 2015-2025 The strace developers. # All rights reserved. # # SPDX-License-Identifier: LGPL-2.1-or-later AC_DEFUN([st_MPERS_LOAD_AC_CV], [ pushdef([var], [ac_cv_$1]) pushdef([saved], [saved_ac_cv_$1]) pushdef([mpers], [ac_cv_]mpers_name[_$1]) AS_IF([test -n "${var+set}"], [saved="${var}"; unset var]) AS_IF([test -n "${mpers+set}"], [var="${mpers}"]) popdef([mpers]) popdef([saved]) popdef([var]) ]) AC_DEFUN([st_MPERS_SAVE_AC_CV], [ pushdef([var], [ac_cv_$1]) pushdef([saved], [saved_ac_cv_$1]) pushdef([mpers], [ac_cv_]mpers_name[_$1]) AS_IF([test -n "${var+set}"], [mpers="${var}"]) AS_IF([test -n "${saved+set}"], [var="${saved}"; unset saved]) popdef([mpers]) popdef([saved]) popdef([var]) ]) AC_DEFUN([st_MPERS_STRUCT_STAT], [ st_MPERS_LOAD_AC_CV([type_struct_stat$1]) AC_CHECK_TYPE([struct stat$1], AC_DEFINE([HAVE_]MPERS_NAME[_STRUCT_STAT$1], [1], [Define to 1 if ]mpers_name[ has the type 'struct stat$1'.]),, [#include <sys/types.h> #include <asm/stat.h>]) st_MPERS_SAVE_AC_CV([type_struct_stat$1]) st_MPERS_LOAD_AC_CV([member_struct_stat$1_st_mtime_nsec]) AC_CHECK_MEMBER([struct stat$1.st_mtime_nsec], AC_DEFINE([HAVE_]MPERS_NAME[_STRUCT_STAT$1_ST_MTIME_NSEC], [1], [Define to 1 if 'st_mtime_nsec' is a member of ]mpers_name[ 'struct stat$1'.]),, [#include <sys/types.h> #include <asm/stat.h>]) st_MPERS_SAVE_AC_CV([member_struct_stat$1_st_mtime_nsec]) ]) AC_DEFUN([st_MPERS],[ pushdef([mpers_name], [$1]) pushdef([MPERS_NAME], translit([$1], [a-z], [A-Z])) pushdef([HAVE_MPERS], [HAVE_]MPERS_NAME[_MPERS]) pushdef([HAVE_RUNTIME], [HAVE_]MPERS_NAME[_RUNTIME]) pushdef([HAVE_SELINUX_RUNTIME], [HAVE_]MPERS_NAME[_SELINUX_RUNTIME]) pushdef([MPERS_CFLAGS], [$cc_flags_$1]) pushdef([st_cv_cc], [st_cv_$1_cc]) pushdef([st_cv_runtime], [st_cv_$1_runtime]) pushdef([st_cv_selinux_runtime], [st_cv_$1_selinux_runtime]) pushdef([st_cv_mpers], [st_cv_$1_mpers]) pushdef([EXEEXT], MPERS_NAME[_EXEEXT])dnl pushdef([OBJEXT], MPERS_NAME[_OBJEXT])dnl pushdef([LDFLAGS], [LDFLAGS_FOR_]MPERS_NAME)dnl pushdef([WARN_CFLAGS], [WARN_CFLAGS_FOR_]MPERS_NAME)dnl pushdef([TEST_WARN_CFLAGS], [TEST_WARN_CFLAGS_FOR_]MPERS_NAME)dnl st_SAVE_VAR([CC]) st_SAVE_VAR([CPP]) st_SAVE_VAR([CFLAGS]) st_SAVE_VAR([CPPFLAGS]) CC=[$CC_FOR_]MPERS_NAME CPP=[$CPP_FOR_]MPERS_NAME CFLAGS=[$CFLAGS_FOR_]MPERS_NAME CPPFLAGS=[$CPPFLAGS_FOR_]MPERS_NAME case "$arch" in [$2]) case "$enable_mpers" in yes|check|[$1]) AH_TEMPLATE([HAVE_GNU_STUBS_32_H], [Define to 1 if you have the <gnu/stubs-32.h> header file.]) AH_TEMPLATE([HAVE_GNU_STUBS_X32_H], [Define to 1 if you have the <gnu/stubs-x32.h> header file.]) pushdef([gnu_stubs], [gnu/stubs-][m4_substr([$1], 1)][.h]) AC_CHECK_HEADERS([gnu_stubs], [IFLAG=], [mkdir -p src/gnu : > src/gnu_stubs AC_MSG_NOTICE([Created empty gnu_stubs]) IFLAG=-Isrc]) popdef([gnu_stubs]) saved_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS${IFLAG:+ }$IFLAG" saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS MPERS_CFLAGS" AC_CACHE_CHECK([for mpers_name personality compile support (using $CC $CPPFLAGS $CFLAGS)], [st_cv_cc], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h> #include <errno.h>]], [[return 0]])], [st_cv_cc=yes], [st_cv_cc=no])]) if test $st_cv_cc = yes; then AC_CACHE_CHECK([for mpers_name personality runtime support], [st_cv_runtime], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h> #include <errno.h>]], [[return 0]])], [st_cv_runtime=yes], [st_cv_runtime=no], [st_cv_runtime=no])]) AC_CACHE_CHECK([whether mpers.sh mpers_name MPERS_CFLAGS works], [st_cv_mpers], [if READELF="$READELF" \ CC="$CC" CPP="$CPP" CPPFLAGS="$CPPFLAGS" \ $srcdir/src/mpers_test.sh [$1] "MPERS_CFLAGS"; then st_cv_mpers=yes else st_cv_mpers=no fi]) AS_IF([test "x$enable_secontext$st_cv_mpers$st_cv_runtime" = xyesyesyes], [AC_CACHE_CHECK([whether selinux runtime works with mpers_name personality], [st_cv_selinux_runtime], [saved_CPPFLAGS="$CPPFLAGS" saved_LDFLAGS="$LDFLAGS" saved_LIBS="$LIBS" CPPFLAGS="$CPPFLAGS $libselinux_CPPFLAGS" LDFLAGS="$LDFLAGS $libselinux_LDFLAGS" LIBS="$LIBS $libselinux_LIBS" AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <selinux/selinux.h>]], [[return 0]])], [st_cv_selinux_runtime=yes], [st_cv_selinux_runtime=no], [st_cv_selinux_runtime=no]) LIBS="$saved_LIBS" LDFLAGS="$saved_LDFLAGS" CPPFLAGS="$saved_CPPFLAGS" ]) ], [st_cv_selinux_runtime=no]) if test $st_cv_mpers = yes; then AC_DEFINE(HAVE_MPERS, [1], [Define to 1 if you have ]mpers_name[ mpers support]) st_MPERS_STRUCT_STAT([]) st_MPERS_STRUCT_STAT([64]) if test $st_cv_runtime = yes; then pushdef([SIZEOF_LONG], MPERS_NAME[_SIZEOF_LONG]) st_MPERS_LOAD_AC_CV([sizeof_long]) AC_CHECK_SIZEOF([long]) st_MPERS_SAVE_AC_CV([sizeof_long]) popdef([SIZEOF_LONG]) pushdef([SIZEOF_KERNEL_LONG_T], MPERS_NAME[_SIZEOF_KERNEL_LONG_T]) st_MPERS_LOAD_AC_CV([sizeof_kernel_long_t]) AC_CHECK_SIZEOF([kernel_long_t],, [#include "$srcdir/src/kernel_types.h"]) st_MPERS_SAVE_AC_CV([sizeof_kernel_long_t]) popdef([SIZEOF_KERNEL_LONG_T]) pushdef([SIZEOF_STRUCT_MSQID64_DS], MPERS_NAME[_SIZEOF_STRUCT_MSQID64_DS]) st_MPERS_LOAD_AC_CV([sizeof_struct_msqid64_ds]) AC_CHECK_SIZEOF([struct msqid64_ds],, [#include <linux/msg.h>]) st_MPERS_SAVE_AC_CV([sizeof_struct_msqid64_ds]) popdef([SIZEOF_STRUCT_MSQID64_DS]) fi fi if test "x$st_cv_selinux_runtime" = xyes; then AC_DEFINE([HAVE_SELINUX_RUNTIME], [1], [Define to enable SELinux security contexts testing for ]mpers_name[ personality]) fi fi CPPFLAGS="$saved_CPPFLAGS" CFLAGS="$saved_CFLAGS" ;; *) # case "$enable_mpers" st_cv_runtime=no st_cv_mpers=no st_cv_selinux_runtime=no ;; esac test "$st_cv_mpers" = yes || st_cv_mpers=no AC_MSG_CHECKING([whether to enable $1 personality support]) AC_MSG_RESULT([$st_cv_mpers]) case "$enable_mpers,$st_cv_mpers" in yes,no|[$1],no) AC_MSG_ERROR([Cannot enable $1 personality support]) ;; esac ;; *) # case "$arch" st_cv_runtime=no st_cv_mpers=no ;; esac AM_CONDITIONAL(HAVE_RUNTIME, [test "$st_cv_mpers$st_cv_runtime" = yesyes]) AM_CONDITIONAL(HAVE_SELINUX_RUNTIME, [test "$st_cv_mpers$st_cv_selinux_runtime" = yesyes]) AM_CONDITIONAL(HAVE_MPERS, [test "$st_cv_mpers" = yes]) st_RESTORE_VAR([CC]) st_RESTORE_VAR([CPP]) st_RESTORE_VAR([CFLAGS]) st_RESTORE_VAR([CPPFLAGS]) popdef([TEST_WARN_CFLAGS])dnl popdef([WARN_CFLAGS])dnl popdef([LDFLAGS])dnl popdef([OBJEXT])dnl popdef([EXEEXT])dnl popdef([st_cv_mpers]) popdef([st_cv_runtime]) popdef([st_cv_selinux_runtime]) popdef([st_cv_cc]) popdef([MPERS_CFLAGS]) popdef([HAVE_RUNTIME]) popdef([HAVE_SELINUX_RUNTIME]) popdef([HAVE_MPERS]) popdef([MPERS_NAME]) popdef([mpers_name]) ])