X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=m4%2Fpsi_struct.m4;h=e25b354e2824dc7b6be985b2229fcf6169e291cd;hb=6b2e6562e64a263a42910d28e23b6ca94f3ecb65;hp=5a03dd5bb07ae396a8e9fcb8f72a379199201fd9;hpb=7e3b009ddee1508720d3493c3985654e8f21ea0e;p=m6w6%2Fext-psi

diff --git a/m4/psi_struct.m4 b/m4/psi_struct.m4
index 5a03dd5..e25b354 100644
--- a/m4/psi_struct.m4
+++ b/m4/psi_struct.m4
@@ -4,6 +4,12 @@ psi_add_struct() {
 	cat >>$PSI_STRUCTS <<<"	$1, {0}, "
 }
 
+# psi_add_union(union/struct members)
+# Add a pre-defined union to $PSI_UNIONS.
+psi_add_union() {
+	cat >>$PSI_UNIONS <<<"	$1, {0}, "
+}
+
 dnl PSI_STRUCT_MEMBER(struct name, decl member)
 dnl INTERNAL: build $psi_struct_members
 AC_DEFUN(PSI_STRUCT_MEMBER, [
@@ -15,10 +21,10 @@ AC_DEFUN(PSI_STRUCT_MEMBER, [
 	if PSI_SH_TEST_SIZEOF($1 member_name); then
 		PSI_CHECK_OFFSETOF($1, member_name)
 		PSI_TYPE_INDIRECTION($2, [PSI_SH_SIZEOF([$1 member_name])], pl, as)
-		
+
 		psi_member_sizeof=PSI_SH_SIZEOF($1 member_name)
 		psi_member_offsetof=PSI_SH_OFFSETOF($1 member_name)
-		
+
 		if test $pl -gt 0 && test $as -eq 0; then
 			check_size=PSI_SH_SIZEOF(void *)
 		elif test $pl -eq 1 && test $as -gt 0; then
@@ -40,15 +46,37 @@ AC_DEFUN(PSI_STRUCT_MEMBER, [
 dnl PSI_STRUCT(struct name, struct members)
 dnl Check a struct and its members and add a pre-defined struct and possibly a
 dnl pre-defined type for this struct.
-dnl Calls PSI_CHECK_SIZEOF for the struct and each member.
-dnl Calls PSI_CHECK_OFFSETOF and PSI_TYPE_INDIRECTON for each member.
+dnl Calls PSI_CHECK_SIZEOF and PSI_CHECK_ALIGNOF for the struct.
+dnl Calls PSI_CHECK_SIZEOF, PSI_CHECK_OFFSETOF and PSI_TYPE_INDIRECTON for each member.
 AC_DEFUN(PSI_STRUCT, [
 	PSI_CHECK_SIZEOF($1)
-	psi_struct_name=m4_bregexp([$1], [^\(struct \)?\(\w+\)], [\2])
-	psi_struct_members="{PSI_T_STRUCT, \"struct\", \"$psi_struct_name\", 0, $AS_TR_SH([ac_cv_sizeof_]$1), 0, 0}"
-	ifelse([$2],,,[m4_map_args_sep([PSI_STRUCT_MEMBER($1, m4_normalize(], [))], [], $2)])
-	psi_add_struct "$psi_struct_members"
-	if test "$1" = "$psi_struct_name"; then
-		psi_add_type "{PSI_T_STRUCT, \"$1\", \"$1\"}"
+	if PSI_SH_TEST_SIZEOF($1); then
+		PSI_CHECK_ALIGNOF($1)
+		psi_struct_name=m4_bregexp([$1], [^\(struct \)?\(\w+\)], [\2])
+		psi_struct_members="{PSI_T_STRUCT, \"struct\", \"$psi_struct_name\", PSI_SH_ALIGNOF($1), PSI_SH_SIZEOF($1), 0, 0}"
+		ifelse([$2],,,[m4_map_args_sep([PSI_STRUCT_MEMBER($1, m4_normalize(], [))], [], $2)])
+		psi_add_struct "$psi_struct_members"
+		if test "$1" = "$psi_struct_name"; then
+			psi_add_type "{PSI_T_STRUCT, \"$1\", \"$1\"}"
+		fi
+	fi
+])
+
+dnl PSI_UNION(union name, union/struct members)
+dnl Check a union and its members and add a pre-defined union and possibly a
+dnl pre-defined type for this union.
+dnl Calls PSI_CHECK_SIZEOF for the union and each member.
+dnl Calls PSI_CHECK_OFFSETOF and PSI_TYPE_INDIRECTON for each member.
+AC_DEFUN(PSI_UNION, [
+	PSI_CHECK_SIZEOF($1)
+	if PSI_SH_TEST_SIZEOF($1); then
+		PSI_CHECK_ALIGNOF($1)
+		psi_struct_name=m4_bregexp([$1], [^\(union \)?\(\w+\)], [\2])
+		psi_struct_members="{PSI_T_UNION, \"union\", \"$psi_struct_name\", PSI_SH_ALIGNOF($1), PSI_SH_SIZEOF($1), 0, 0}"
+		ifelse([$2],,,[m4_map_args_sep([PSI_STRUCT_MEMBER($1, m4_normalize(], [))], [], $2)])
+		psi_add_union "$psi_struct_members"
+		if test "$1" = "$psi_struct_name"; then
+			psi_add_type "{PSI_T_UNION, \"$1\", \"$1\"}"
+		fi
 	fi
 ])