sizeof.sh

   1 #!/bin/sh
   2
   3 export LC_ALL=C
   4 MUSL=${MUSL:-../musl}
   5
   6 awk -F'\t' '$3 ~ /^[sut]$/ {
   7         print $1
   8 }' data/musl.tags >/tmp/m.type
   9 echo 'wchar_t' >>/tmp/m.type
  10
  11 (
  12         cd $MUSL/include
  13         find . -name '*.h' | sed 's,^\./,,' >/tmp/m.header
  14 )
  15
  16 echo '#define _GNU_SOURCE 1' >sizeof.c
  17 echo '#define _LARGEFILE64_SOURCE 1' >>sizeof.c
  18 echo '#define _FILE_OFFSET_BITS 64' >>sizeof.c
  19 echo '#include <stddef.h>' >>sizeof.c
  20 echo '#include <sys/types.h>' >>sizeof.c
  21 echo '' >>sizeof.c
  22
  23 sort /tmp/m.header |uniq |awk '
  24         /^features\.h$/ { printf "//" }
  25         { print "#include <" $0 ">" }' >>sizeof.c
  26 echo '#define p(x) printf("%s\\t%u\\n", #x, sizeof(x));' >>sizeof.c
  27 echo 'int main(){' >>sizeof.c
  28 sed 's/.*/p(&)/' /tmp/m.type |awk '
  29         /p\(CODE\)/ ||
  30         /p\(DIR\)/ ||
  31         /p\(FILE\)/ ||
  32         /p\(struct __CODE\)/ ||
  33         /p\(struct __fpstate\)/ ||
  34         /p\(struct __ptcb\)/ ||
  35         /p\(struct __siginfo\)/ ||
  36         /p\(struct __ucontext\)/ ||
  37         /p\(struct in6_mutinfo\)/ ||
  38         /p\(struct npttimeval\)/ { printf "//" }
  39         { print }' >>sizeof.c
  40 echo 'return 0;}' >>sizeof.c
  41