newlib-cygwin/winsup/cygwin/cygmagic

#!/bin/sh
file_magic=$1; shift
gcc=$1; shift
file=$1; shift
trap "rm -f /tmp/$$.magic" 0 1 2 15
cat <<EOF > $file_magic
/* autogenerated - do not edit */
#include "$file"
EOF
while [ -n "$1" ]; do
    define=$1; shift
    struct=$1; shift
    sum=`$gcc -E $file | sed -n "/^$struct/,/^};/p" | sed -e 's/[ 	]//g' -e '/^$/d' | sum | awk '{print "obase=16;\"0x\";", $1}' | bc | tr '[A-Z]' '[a-z]'`
    echo "#define $define $sum"
    curr=`sed -n "s/^#[ 	]*define CURR_$define[ 	][ 	]*\([^ 	][^ 	]*\)/\1/p" $file`
    [ "$curr" == "$sum" ] || echo "*** WARNING WARNING WARNING WARNING WARNING ***
*** $file: magic number for $define changed old $curr != new $sum
*** WARNING WARNING WARNING WARNING WARNING ***" 1>&2
done >> $file_magic
exit 0
* Makefile.in: Autogenerate some header files which provide magic numbers. Force dependencies for files which depend on autogenerated headers to ensure that they are always built. * child_info.h (child_info): Add new fields to accommodate new magic number header stuff. * dcrt0.cc: Rely on "child_info_magic.h" to ensure that correct child_info magic numbers are used. (dll_crt0_1): Temporarily remove _cygwin_testing_magic test. (_dll_crt0): Do more testing on magic numbers from fork_info structure. Call "multiple_cygwin_problem" where appropriate. (multiple_cygwin_problem): Rename from multiple_cygwin_die. Issue a warning or die, as appropriate based on cygwin version/magic number mismatch. * pinfo.cc (pinfo::exit): Don't attempt to dereference `this' if it doesn't exist. This can happen when a fatal error occurs early in process initialization. * shared.cc: Rely on "shared_info_magic.h" to accommodate that new magic number header stuff. (shared_info::initialize): Use new magic number stuff, for shared region. (memory_init): Ditto, for mount table. * shared_info.h: Accomodate new magic number stuff for shared region and mount table. * sigproc.cc: Rely on "child_info_magic.h" to accommodate new magic number header stuff. (init_child_info): Initialize new fields in child_info) to accomodate magic numbers. * winsup.h: Rename multiple_cygwin_die to multiple_cygwin_problem. * include/cygwin/version.h: Define macros for manipulating version magic. * cygmagic: New shell script for generating magic numbers. 2001-12-26 04:53:34 +00:00			`#!/bin/sh`
			`file_magic=$1; shift`
			`gcc=$1; shift`
			`file=$1; shift`
			`trap "rm -f /tmp/$$.magic" 0 1 2 15`
			`cat <<EOF > $file_magic`
			`/* autogenerated - do not edit */`
			`#include "$file"`
			`EOF`
			`while [ -n "$1" ]; do`
			`define=$1; shift`
			`struct=$1; shift`
			sum=`$gcc -E $file \| sed -n "/^$struct/,/^};/p" \| sed -e 's/[ ]//g' -e '/^$/d' \| sum \| awk '{print "obase=16;\"0x\";", $1}' \| bc \| tr '[A-Z]' '[a-z]'`
			`echo "#define $define $sum"`
			curr=`sed -n "s/^#[ ]define CURR_$define[ ][ ]\([^ ][^ ]*\)/\1/p" $file`
			`[ "$curr" == "$sum" ] \|\| echo "* WARNING WARNING WARNING WARNING WARNING *`
* cygmagic: Add define name to warning. * dcrt0.cc (_dll_crt0): Check for changes in child_info size. (multiple_cygwin_problem): Avoid "proc" errors when testing. Just assume new cygwin proc. * shared_info.h (mount_info): Add 'cb' element for sanity checks. (shared_info): Ditto. * child_info.h (child_info): Add fhandler_union_size element for sanity checking. * shared.cc (open_shared): Detect shared region size mismatch between parent and child. (shared_info::initialize): Detect shared region size mismatch with expectation. (memory_Init): Ditto. * sigproc.cc (init_child_info): Correctly set cb in passed structure. * shared.cc (open_shared): 2001-12-26 21:35:16 +00:00			`*** $file: magic number for $define changed old $curr != new $sum`
* Makefile.in: Autogenerate some header files which provide magic numbers. Force dependencies for files which depend on autogenerated headers to ensure that they are always built. * child_info.h (child_info): Add new fields to accommodate new magic number header stuff. * dcrt0.cc: Rely on "child_info_magic.h" to ensure that correct child_info magic numbers are used. (dll_crt0_1): Temporarily remove _cygwin_testing_magic test. (_dll_crt0): Do more testing on magic numbers from fork_info structure. Call "multiple_cygwin_problem" where appropriate. (multiple_cygwin_problem): Rename from multiple_cygwin_die. Issue a warning or die, as appropriate based on cygwin version/magic number mismatch. * pinfo.cc (pinfo::exit): Don't attempt to dereference `this' if it doesn't exist. This can happen when a fatal error occurs early in process initialization. * shared.cc: Rely on "shared_info_magic.h" to accommodate that new magic number header stuff. (shared_info::initialize): Use new magic number stuff, for shared region. (memory_init): Ditto, for mount table. * shared_info.h: Accomodate new magic number stuff for shared region and mount table. * sigproc.cc: Rely on "child_info_magic.h" to accommodate new magic number header stuff. (init_child_info): Initialize new fields in child_info) to accomodate magic numbers. * winsup.h: Rename multiple_cygwin_die to multiple_cygwin_problem. * include/cygwin/version.h: Define macros for manipulating version magic. * cygmagic: New shell script for generating magic numbers. 2001-12-26 04:53:34 +00:00			`* WARNING WARNING WARNING WARNING WARNING *" 1>&2`
			`done >> $file_magic`
			`exit 0`