| 1 | #!/bin/bash |
| 2 | |
| 3 | usage() { |
| 4 | echo "usage: sztest [-hab] [-H SYS-HEADER] [-L LOCAL-HEADER] TYPE [CCFLAGS...]" |
| 5 | } |
| 6 | |
| 7 | mode=size |
| 8 | sheaders= |
| 9 | lheaders= |
| 10 | while [ "${1:0:1}" = "-" ]; do |
| 11 | opt="$1" |
| 12 | shift |
| 13 | case "$opt" in |
| 14 | "-h") |
| 15 | usage |
| 16 | exit 0 |
| 17 | ;; |
| 18 | "-a") |
| 19 | mode=align |
| 20 | ;; |
| 21 | "-b") |
| 22 | mode=both |
| 23 | ;; |
| 24 | "-H") |
| 25 | sheaders="$sheaders $1" |
| 26 | shift |
| 27 | ;; |
| 28 | "-L") |
| 29 | lheaders="$lheaders $1" |
| 30 | shift |
| 31 | ;; |
| 32 | esac |
| 33 | done |
| 34 | if [ $# -lt 1 ]; then |
| 35 | usage >&2 |
| 36 | exit 1 |
| 37 | fi |
| 38 | type="$1" |
| 39 | shift |
| 40 | file="$(mktemp /tmp/sztestXXXXXX)" |
| 41 | cat >"$file.c" <<EOF |
| 42 | #include <stdio.h> |
| 43 | #include <stdint.h> |
| 44 | #include <sys/types.h> |
| 45 | #include <unistd.h> |
| 46 | #include <sys/stat.h> |
| 47 | EOF |
| 48 | for header in $sheaders; do |
| 49 | echo "#include <$header>" >>"$file.c" |
| 50 | done |
| 51 | for header in $lheaders; do |
| 52 | echo "#include \"$header\"" >>"$file.c" |
| 53 | done |
| 54 | cat >>"$file.c" <<EOF |
| 55 | int main(int argc, char **argv) |
| 56 | { |
| 57 | EOF |
| 58 | case "$mode" in |
| 59 | size) |
| 60 | echo " printf(\"%zi\\n\", sizeof($type));" >>"$file.c" |
| 61 | ;; |
| 62 | align) |
| 63 | echo " printf(\"%zi\\n\", __alignof__($type));" >>"$file.c" |
| 64 | ;; |
| 65 | both) |
| 66 | echo " printf(\"%zi %zi\\n\", sizeof($type), __alignof__($type));" >>"$file.c" |
| 67 | ;; |
| 68 | esac |
| 69 | cat >>"$file.c" <<EOF |
| 70 | return(0); |
| 71 | } |
| 72 | EOF |
| 73 | |
| 74 | if ! gcc "$@" -iquote. -g -Wall -o "$file" "$file.c"; then |
| 75 | rm -f "$file" "$file.c" |
| 76 | exit 1 |
| 77 | fi |
| 78 | "$file" |
| 79 | rm "$file" "$file.c" |