code review 8858047: cmd/ld: emit relocs for DWARF info when doing an extern...

src/cmd/ld/symtab.c

Index: src/cmd/ld/symtab.c
===================================================================
--- a/src/cmd/ld/symtab.c
+++ b/src/cmd/ld/symtab.c
@@ -143,6 +143,31 @@
 }
 
 void
+putelfsectionsym(Sym* s, int shndx)
+{
+	putelfsyment(0, 0, 0, (STB_LOCAL<<4)|STT_SECTION, shndx, 0);
+	s->elfsym = numelfsym++;
+}
+
+void
+putelfsymshndx(vlong sympos, int shndx)
+{
+	vlong here;
+
+	here = cpos();
+	switch(thechar) {
+	case '6':
+		cseek(sympos+6);
+		break;
+	default:
+		cseek(sympos+14);
+		break;
+	}
+	WPUT(shndx);
+	cseek(here);
+}
+
+void
 asmelfsym(void)
 {
 	Sym *s;
@@ -150,6 +175,8 @@
 	// the first symbol entry is reserved
 	putelfsyment(0, 0, 0, (STB_LOCAL<<4)|STT_NOTYPE, 0, 0);
 
+	dwarfaddelfsectionsyms();
+
 	elfbind = STB_LOCAL;
 	genasmsym(putelfsym);