diff --git a/src/checker.cpp b/src/checker.cpp
index ca457fa21..26a5f4989 100644
--- a/src/checker.cpp
+++ b/src/checker.cpp
@@ -3611,6 +3611,52 @@ gb_internal ExactValue check_decl_attribute_value(CheckerContext *c, Ast *value,
 	return ev;
 }
 
+gb_internal bool is_foreign_name_valid(String const &name) {
+	if (name.len == 0) {
+		return false;
+	}
+	isize offset = 0;
+	while (offset < name.len) {
+		Rune rune;
+		isize remaining = name.len - offset;
+		isize width = utf8_decode(name.text+offset, remaining, &rune);
+		if (rune == GB_RUNE_INVALID && width == 1) {
+			return false;
+		} else if (rune == GB_RUNE_BOM && remaining > 0) {
+			return false;
+		}
+
+		// TODO(bill, 2026-06-02): This entire logic needs to be completely figured out
+		// as to what should be allowed or not
+		// The original limitations of `-$._ +` and alphanumeric was more of an assumption
+		// than the actual technical limitations of all linkers.
+		if (offset == 0) {
+			switch (rune) {
+			case '-':
+			case '$':
+			case '.':
+			case '_':
+			case ':':
+				break;
+			default:
+				if (!gb_char_is_alpha(cast(char)rune))
+					return false;
+				break;
+			}
+		} else {
+			int n = utf8proc_charwidth(rune);
+			if (n <= 0) {
+				// not a printable character
+				return false;
+			}
+		}
+
+		offset += width;
+	}
+
+	return true;
+}
+
 
 #define ATTRIBUTE_USER_TAG_NAME "tag"
 
@@ -4179,17 +4225,6 @@ gb_internal DECL_ATTRIBUTE_PROC(proc_decl_attribute) {
 			}
 		}
 		return true;
-	} else if (name == "link_section") {
-		ExactValue ev = check_decl_attribute_value(c, value);
-		if (ev.kind == ExactValue_String) {
-			ac->link_section = ev.value_string;
-			if (!is_foreign_name_valid(ac->link_section)) {
-				error(elem, "Invalid link section: %.*s", LIT(ac->link_section));
-			}
-		} else {
-			error(elem, "Expected a string value for '%.*s'", LIT(name));
-		}
-		return true;
 	}
 	return false;
 }
diff --git a/src/parser.cpp b/src/parser.cpp
index bef9a3b4e..26276b20c 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -2057,54 +2057,6 @@ gb_internal void check_proc_add_tag(AstFile *f, Ast *tag_expr, u64 *tags, ProcTa
 	*tags |= tag;
 }
 
-gb_internal bool is_foreign_name_valid(String const &name) {
-	if (name.len == 0) {
-		return false;
-	}
-	isize offset = 0;
-	while (offset < name.len) {
-		Rune rune;
-		isize remaining = name.len - offset;
-		isize width = utf8_decode(name.text+offset, remaining, &rune);
-		if (rune == GB_RUNE_INVALID && width == 1) {
-			return false;
-		} else if (rune == GB_RUNE_BOM && remaining > 0) {
-			return false;
-		}
-
-		if (offset == 0) {
-			switch (rune) {
-			case '-':
-			case '$':
-			case '.':
-			case '_':
-				break;
-			default:
-				if (!gb_char_is_alpha(cast(char)rune))
-					return false;
-				break;
-			}
-		} else {
-			switch (rune) {
-			case '-':
-			case '$':
-			case '.':
-			case '_':
-				break;
-			default:
-				if (!gb_char_is_alphanumeric(cast(char)rune)) {
-					return false;
-				}
-				break;
-			}
-		}
-
-		offset += width;
-	}
-
-	return true;
-}
-
 gb_internal void parse_proc_tags(AstFile *f, u64 *tags) {
 	GB_ASSERT(tags != nullptr);