Exclude routines from fortification

Since the _FORTIFY_SOURCE feature uses some routines of Glibc, they need to
be excluded from the fortification.

On top of that:
 - some tests explicitly verify that some level of fortification works
   appropriately, we therefore shouldn't modify the level set for them.
 - some objects need to be build with optimization disabled, which
   prevents _FORTIFY_SOURCE to be used for them.

Assembler files that implement architecture specific versions of the
fortified routines were not excluded from _FORTIFY_SOURCE as there is no
C header included that would impact their behavior.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/socket/Makefile b/socket/Makefile
index d9b0b4af64..08f20118cd 100644
--- a/socket/Makefile
+++ b/socket/Makefile
@@ -60,6 +60,12 @@ routines := \
   socketpair \
   # routines
 
+# Exclude fortified routines from being built with _FORTIFY_SOURCE
+routines_no_fortify += \
+  recv \
+  recvfrom \
+  # routines_no_fortify
+
 tests := \
   tst-accept4 \
   tst-cmsg_cloexec \