tools-for-build/openbsd-sigcontext.sh

   1 cd ./tools-for-build
   2
   3 base=openbsd-sigcontext
   4
   5 # check for sf_fpstate in struct sigframe (ie: pre July 2010)
   6 rm -f "${base}.c"
   7 cat > "${base}.c" <<EOF
   8 #include <stddef.h>
   9 #include <stdio.h>
  10 #include <machine/frame.h>
  11 int
  12 main()
  13 {
  14     printf("it works: %d\n", offsetof(struct sigframe, sf_fpstate));
  15     return (0);
  16 }
  17 EOF
  18 if $GNUMAKE "${base}" > /dev/null 2>&1 && "./${base}" > /dev/null 2>&1
  19 then
  20     echo '#define OS_OPENBSD_FPSTATE_IN_SIGFRAME'
  21 fi
  22
  23 # check for sc_fpstate in struct sigcontext (ie: July 2010 and later)
  24 rm -f "${base}.c"
  25 cat > "${base}.c" <<EOF
  26 #include <stddef.h>
  27 #include <stdio.h>
  28 #include <signal.h>
  29 int
  30 main()
  31 {
  32     printf("it works: %d\n", offsetof(struct sigcontext, sc_fpstate));
  33     return (0);
  34 }
  35 EOF
  36 if $GNUMAKE "${base}" > /dev/null 2>&1 && "./${base}" > /dev/null 2>&1
  37 then
  38     echo '#define OS_OPENBSD_FPSTATE_IN_SIGCONTEXT'
  39 fi
  40
  41 rm -f "${base}.c" "${base}"