+++ /dev/null
-# psi_add_redir(name, symbol)
-# Add a function redirection to $PSI_REDIRS.
-psi_add_redir() {
- cat >>$PSI_REDIRS <<EOF
- {"$1", (psi_func_ptr) $2},
-EOF
-}
-
-# psi_add_decl(decl, options)
-# Add a pre-defined decl to $PSI_VA_DECLS/$PSI_DECLS.
-psi_add_decl() {
- case "$2" in
- *functor*)
- cat >>$PSI_FN_DECLS <<EOF
- $1, {0},
-EOF
- ;;
- *vararg*)
- cat >>$PSI_VA_DECLS <<EOF
- $1, {0},
-EOF
- ;;
- *)
- cat >>$PSI_DECLS <<EOF
- $1, {0},
-EOF
- ;;
- esac
-}
-
-dnl PSI_DECL_TYPE(type functor_name, args)
-dnl Adds a pre-defined functor decl to $PSI_FN_DECLS.
-AC_DEFUN(PSI_DECL_TYPE, [
- PSI_DECL_ARGS($1, $2)
- psi_add_decl "$psi_decl_args" functor
-])
-dnl PSI_REDIR(name, custom symbol)
-dnl Create a function redirection to an optional custom symbol.
-AC_DEFUN(PSI_REDIR, [
- psi_add_redir $1 ifelse([$2],[],[$1],[$2])
-])
-
-dnl PSI_FUNC_LIBC_MAIN()
-dnl Check for the platforms default stub in executables.
-AC_DEFUN(PSI_FUNC_LIBC_MAIN, [
- AC_REQUIRE([AC_PROG_AWK])
- AC_CACHE_CHECK(for libc start main symbol, psi_cv_libc_main, [
- psi_libc_main=
- AC_TRY_LINK(PSI_INCLUDES, [(void)0;], [
- psi_libc_main=`nm -g conftest$ac_exeext | $AWK -F ' *|@' '/^@<:@@<:@:space:@:>@@:>@+U / {print$[]3; exit}'`
- ])
- psi_cv_libc_main=$psi_libc_main
- ])
-])
-
-dnl PSI_DECL_ARGS(decl args)
-dnl INTERNAL: build psi_decl_args
-AC_DEFUN(PSI_DECL_ARGS, [
- psi_decl_args=
- PSI_DECL_ARG($1)
- m4_case([$2],
- [(void)], [],
- [()], [],
- [m4_map_args_sep([PSI_DECL_ARG(m4_normalize(], [))], [], m4_bregexp([$2], [(\(.*\))], [\1]))])
-])
-
-dnl PSI_DECL_ARG(decl arg)
-dnl INTERNAL: build psi_decl_args
-AC_DEFUN(PSI_DECL_ARG, [
- m4_define([member_name], PSI_VAR_NAME($1))
- m4_define([member_type], PSI_VAR_TYPE($1))
-
- PSI_TYPE_INDIRECTION([$1],, pl, as)
- if test -n "$psi_decl_args"; then
- psi_decl_args="$psi_decl_args, "
- fi
- psi_decl_args="[$psi_decl_args{]PSI_TYPE_PAIR(member_type)[, \"]member_name[\",] $pl, $as[}]"
-])
-
-dnl PSI_DECL(type func, args, flags)
-dnl Check for a function or macro declaration and a possible asm redirection.
-dnl Adds a pre-defined (vararg) decl to $PSI_VA_DECLS/$PSI_DECLS.
-dnl Calls PSI_MACRO if PSI_FUNC fails.
-AC_DEFUN(PSI_DECL, [
- AC_REQUIRE([PSI_FUNC_LIBC_MAIN])
- PSI_DECL_ARGS($1, $2)
-
- psi_symbol="PSI_VAR_NAME($1)"
- AC_CACHE_CHECK(for PSI_VAR_NAME($1), [psi_cv_fn_]PSI_VAR_NAME($1), [
- psi_symbol_redirect=
- AC_TRY_LINK(PSI_INCLUDES, [
- void (*fn)(void) = (void (*)(void)) $psi_symbol; (*fn)()
- ], [
- psi_symbol_redirect=`nm -g conftest$ac_exeext | $AWK -F ' *|@' '/^@<:@@<:@:space:@:>@@:>@+U '$psi_cv_libc_main'/ {next} /^@<:@@<:@:space:@:>@@:>@+U / {print$[]3; exit}'`
- ])
- [psi_cv_fn_]PSI_VAR_NAME($1)=$psi_symbol_redirect
- ])
- case "$[psi_cv_fn_]PSI_VAR_NAME($1)" in
- "$psi_symbol"|"_$psi_symbol")
- psi_add_decl "$psi_decl_args" $3
- ;;
- "")
- ifelse([$3], vararg, [
- AC_MSG_ERROR(varargs macro support is not implemented)
- ],[
- PSI_MACRO($1, $2, [
- psi_add_decl "$psi_decl_args"
- ])
- ])
- ;;
- *)
- PSI_REDIR($psi_symbol)
- psi_add_decl "$psi_decl_args" $3
- ;;
- esac
-])