e2fsprogs/config/parse-types.sh

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#!/bin/sh
cat > sed.script << "EOF"
/^#/d
/^$/d
s/__extension__ //
s/typedef \(.*\) __u\([1-9]*\);/#define __U\2_TYPEDEF \1/
s/typedef \(.*\) __s\([1-9]*\);/#define __S\2_TYPEDEF \1/
EOF
if test -z "$CC"; then
CC=gcc
fi
if test -z "$CPP"; then
CPP="$CC -E"
fi
/bin/echo -n "checking for __uNN types... "
# can't check [ -f /usr/include/asm/types.h ] directly, since
# the include path might be different if cross-compiling
if echo '#include <asm/types.h>' | $CPP - 2> parse-types.log | \
sed -f sed.script | grep '^#' > asm_types.h; then
echo "using <asm/types.h>"
else
echo "using generic types"
fi
rm sed.script
cp asm_types.h asm_types.c
cat >> asm_types.c <<EOF
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
#ifdef __U8_TYPEDEF
if (sizeof(__U8_TYPEDEF) != 1) {
printf("Sizeof(__U8__TYPEDEF) is %d should be 1\n",
(int) sizeof(__U8_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __U8_TYPEDEF not defined
#endif
#ifdef __S8_TYPEDEF
if (sizeof(__S8_TYPEDEF) != 1) {
printf("Sizeof(_S8__TYPEDEF) is %d should be 1\n",
(int) sizeof(__S8_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __S8_TYPEDEF not defined
#endif
#ifdef __U16_TYPEDEF
if (sizeof(__U16_TYPEDEF) != 2) {
printf("Sizeof(__U16__TYPEDEF) is %d should be 2\n",
(int) sizeof(__U16_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __U16_TYPEDEF not defined
#endif
#ifdef __S16_TYPEDEF
if (sizeof(__S16_TYPEDEF) != 2) {
printf("Sizeof(__S16__TYPEDEF) is %d should be 2\n",
(int) sizeof(__S16_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __S16_TYPEDEF not defined
#endif
#ifdef __U32_TYPEDEF
if (sizeof(__U32_TYPEDEF) != 4) {
printf("Sizeof(__U32__TYPEDEF) is %d should be 4\n",
(int) sizeof(__U32_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __U32_TYPEDEF not defined
#endif
#ifdef __S32_TYPEDEF
if (sizeof(__S32_TYPEDEF) != 4) {
printf("Sizeof(__S32__TYPEDEF) is %d should be 4\n",
(int) sizeof(__S32_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __S32_TYPEDEF not defined
#endif
#ifdef __U64_TYPEDEF
if (sizeof(__U64_TYPEDEF) != 8) {
printf("Sizeof(__U64__TYPEDEF) is %d should be 8\n",
(int) sizeof(__U64_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __U64_TYPEDEF not defined
#endif
#ifdef __S64_TYPEDEF
if (sizeof(__S64_TYPEDEF) != 8) {
printf("Sizeof(__S64__TYPEDEF) is %d should be 8\n",
(int) sizeof(__S64_TYPEDEF));
exit(1);
}
#elif defined(__linux__)
#warning __S64_TYPEDEF not defined
#endif
return 0;
}
EOF
${BUILD_CC-${CC-gcc}} -o asm_types asm_types.c
if ./asm_types
then
true
else
if [ "${CROSS_COMPILE}" != "1" ]; then
echo "Problem detected with asm_types.h"
echo "" > asm_types.h
fi
fi
rm asm_types.c asm_types