cmd/link: external linking can fail on Solaris 11.2+

Workaround external linking issues encountered on Solaris 11.2+ due to the go.o object file being created with a NULL STT_FILE symtab entry by using a placeholder name. Fixes #14957 Change-Id: I89c501b4c548469f3c878151947d35588057982b Reviewed-on: https://go-review.googlesource.com/21636 Reviewed-by: David Crawshaw <[email protected]>
golang · Apr 11, 2016 · e79fef8 · e79fef8
1 parent 3fafe2e
commit e79fef8
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/cmd/link/internal/ld/symtab.go b/src/cmd/link/internal/ld/symtab.go
@@ -198,7 +198,9 @@ func Asmelfsym() {
 
 	// Some linkers will add a FILE sym if one is not present.
 	// Avoid having the working directory inserted into the symbol table.
-	putelfsyment(0, 0, 0, STB_LOCAL<<4|STT_FILE, SHN_ABS, 0)
+	// It is added with a name to avoid problems with external linking
+	// encountered on some versions of Solaris. See issue #14957.
+	putelfsyment(putelfstr("go.go"), 0, 0, STB_LOCAL<<4|STT_FILE, SHN_ABS, 0)
 	numelfsym++
 
 	elfbind = STB_LOCAL