diff options
Diffstat (limited to 'sysdeps/unix/make-syscalls.sh')
| -rw-r--r-- | sysdeps/unix/make-syscalls.sh | 111 |
1 files changed, 75 insertions, 36 deletions
diff --git a/sysdeps/unix/make-syscalls.sh b/sysdeps/unix/make-syscalls.sh index 7aa4b3ea0d..387df6799e 100644 --- a/sysdeps/unix/make-syscalls.sh +++ b/sysdeps/unix/make-syscalls.sh @@ -5,47 +5,68 @@ thisdir=$1; shift -# Get the list of system calls for this directory. -calls=`sed 's/#.*$// -/^[ ]*$/d' $thisdir/syscalls.list` - +echo '' +echo \#### DIRECTORY = $thisdir # Check each sysdep dir with higher priority than this one, # and remove from $calls all the functions found in other dirs. -for dir in $sysdirs; do +# Punt when we reach the directory defining these syscalls. +sysdirs=`for dir in $sysdirs; do + test $dir = $thisdir && break; echo $dir; done` +echo \#### SYSDIRS = $sysdirs - # Punt when we reach the directory defining these syscalls. - test $dir = $thisdir && break +# Get the list of system calls for this directory. +calls=`sed 's/#.*$// +/^[ ]*$/d' $thisdir/syscalls.list` +calls=`echo "$calls" | +while read file caller rest; do # Remove each syscall that is implemented by a file in $dir. # If a syscall specified a "caller", then only compile that syscall # if the caller function is also implemented in this directory. - calls=`echo "$calls" | while read file caller rest; do - test -f $dir/$file.c && continue - test -f $dir/$file.S && continue - test -f $dir/$file.s && continue - if test x$caller != x-; then - test -f $dir/$caller.c && continue - test -f $dir/$caller.S && continue - test -f $dir/$caller.s && continue - fi - echo $file $caller $rest - done` - -done + srcfile=-; + for dir in $sysdirs; do + { test -f $dir/$file.c && srcfile=$dir/$file.c; } || + { test -f $dir/$file.S && srcfile=$dir/$file.S; } || + { test -f $dir/$file.s && srcfile=$dir/$file.s; } || + { test x$caller != x- && + { { test -f $dir/$caller.c && srcfile=$dir/$caller.c; } || + { test -f $dir/$caller.S && srcfile=$dir/$caller.S; } || + { test -f $dir/$caller.s && srcfile=$dir/$caller.s; }; }; } && break; + done; + echo $file $srcfile $caller $rest; +done` # Any calls left? test -n "$calls" || exit 0 -files= - # Emit rules to compile the syscalls remaining in $calls. -echo "$calls" | while read file caller syscall nargs strong weak; do +echo "$calls" | while read file srcfile caller syscall args strong weak; do + +# Figure out if $syscall is defined with a number in syscall.h. +callnum=- +eval `{ echo "#include <sysdep.h>"; + echo "callnum=SYS_ify ($syscall)"; } | + $asm_CPP - |grep "^callnum=" |grep -v $syscall` + + # Derive the number of arguments from the argument signature + case $args in + [0-9]) nargs=$args;; + ?:) nargs=0;; + ?:?) nargs=1;; + ?:??) nargs=2;; + ?:???) nargs=3;; + ?:????) nargs=4;; + ?:?????) nargs=5;; + ?:??????) nargs=6;; + esac - # Figure out if $syscall is defined with a number in syscall.h. - $asm_CPP - << EOF | grep "^@@@ .*$syscall" >/dev/null && continue -#include <sysdep.h> -@@@ SYS_ify ($syscall) -EOF + # Make sure only the first syscall rule is used, if multiple dirs + # define the same syscall. + echo "#### CALL=$file NUMBER=$callnum ARGS=$args SOURCE=$srcfile" + case x$srcfile$callnum in + x*-) ;; ### Do nothing for undefined callnum + x-*) + echo "ifeq (,\$(filter $file,\$(unix-syscalls)))" case $weak in *@*) @@ -53,11 +74,6 @@ EOF echo "ifneq (,\$(filter .os,\$(object-suffixes)))" ;; esac - - # Make sure only the first syscall rule is used, if multiple dirs - # define the same syscall. - echo "ifeq (,\$(filter $file,\$(unix-syscalls)))" - # Accumulate the list of syscall files for this directory. echo "unix-syscalls += $file" test x$caller = x- || echo "unix-extra-syscalls += $file" @@ -75,7 +91,7 @@ shared-only-routines += $file \$(foreach o,\$(object-suffixes),\$(objpfx)$file\$o): \\" ;; esac - echo "\$(common-objpfx)s-proto.d + echo " \$(common-objpfx)s-proto.d (echo '#include <sysdep.h>'; \\ echo 'PSEUDO ($strong, $syscall, $nargs)'; \\ echo ' ret'; \\ @@ -124,8 +140,6 @@ shared-only-routines += $file # And finally, pipe this all into the compiler. echo ' ) | $(COMPILE.S) -x assembler-with-cpp -o $@ -' - echo endif - case $weak in *@*) # The versioned symbols are only in the shared library. @@ -133,4 +147,29 @@ shared-only-routines += $file ;; esac + echo endif + ;; + esac + + case x$callnum,$srcfile,$args in + x[0-9]*,-,*[sp]* | x*,*.[sS],*[sp]*) + echo "ifeq (,\$(filter $file,\$(bp-thunks)))" + echo "bp-thunks += $file"; + echo "\ +\$(objpfx)\$(bppfx)$file.ob: \$(common-objpfx)s-proto.d + (echo '#include <bp-thunks.h>'; \\ + echo 'BP_THUNK_`echo $args |tr : _` ($strong)'; \\" + + for name in $weak; do + case $name in + *@*) ;; + *) echo " echo 'BP_ALIAS ($strong, $name)'; \\" ;; + esac + done + + echo ' ) | $(COMPILE.c) -x c -o $@ -' + echo endif + ;; + esac + done |