-AC_DEFUN(PSI_REDIR, [psi_symbol=ifelse([$2],[],[$1],[$2])
- PSI_REDIRS="{\"$1\", (void(*)(void))$psi_symbol}, $PSI_REDIRS"])
+# psi_add_redir(name, symbol)
+# Add a function redirection to $PSI_REDIRS.
+psi_add_redir() {
+ cat >>$PSI_REDIRS <<<" {\"$1\", (void(*)(void))$2}, "
+}
+# psi_add_decl(decl, options)
+# Add a pre-defined decl to $PSI_VA_DECLS/$PSI_DECLS.
+psi_add_decl() {
+ case "$2" in
+ *vararg*)
+ cat >>$PSI_VA_DECLS <<<" $1, {0}, "
+ ;;
+ *)
+ cat >>$PSI_DECLS <<<" $1, {0}, "
+ ;;
+ esac
+}
+
+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_NM])
AC_REQUIRE([AC_PROG_AWK])
])
dnl PSI_FUNC(fn, action-if-yes, action-if-no)
+dnl Check for a possible function redirection.
AC_DEFUN(PSI_FUNC, [
AC_REQUIRE([PSI_FUNC_LIBC_MAIN])
psi_symbol=$1
esac
])
+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))
])
dnl PSI_DECL(type func, args, flags)
+dnl Check for a function or macro declaration.
+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, [
psi_decl_args=
PSI_DECL_ARG($1)
[()], [],
[m4_map_args_sep([PSI_DECL_ARG(m4_normalize(], [))], [], m4_bregexp([$2], [(\(.*\))], [\1]))])
PSI_FUNC(PSI_VAR_NAME($1), [
- ifelse([$3], vararg, [
- PSI_VA_DECLS="$psi_decl_args, {0}, $PSI_VA_DECLS"
- ], [
- PSI_DECLS="$psi_decl_args, {0}, $PSI_DECLS"
- ])
+ psi_add_decl "$psi_decl_args" $3
], [
PSI_MACRO($1, $2, [
- ifelse([$3], vararg, AC_MSG_ERROR(varargs macro support is not implemented),[])
- PSI_DECLS="$psi_decl_args, {0}, $PSI_DECLS"
+ ifelse([$3], vararg, [
+ AC_MSG_ERROR(varargs macro support is not implemented)
+ ],[
+ psi_add_decl "$psi_decl_args"
+ ])
])
])
])