From 805e2b6172f5522a94e071d488076d5bb6c2871e Mon Sep 17 00:00:00 2001
From: Vladis Dronov <vdronov@redhat.com>
Date: Wed, 1 Feb 2023 00:23:35 +0100
Subject: [PATCH] Get rid of text relocations in -fPIE build

Fedora build system forces a PIE build with -fPIE indirectly via gcc spec
/usr/lib/rpm/redhat/redhat-hardened-cc1. This does not work for assembly
sources, so a PIC-aware assembly code won't be built as PIC (PIE implies
PIC). rdrand_asm.S is PIC-aware in 32bit mode, so force PIC for it, fixing
the following build warning:

/usr/bin/ld: rdrand_asm.o: warning: relocation in read-only section `.text'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
---
 rng-tools.spec | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rng-tools.spec b/rng-tools.spec
index 27ed689..6783d6b 100644
--- a/rng-tools.spec
+++ b/rng-tools.spec
@@ -63,6 +63,12 @@ TPM, jitter) and supplies entropy from them to a kernel entropy pool.
 %endif
 
 ./autogen.sh
+# a dirty hack to force PIC for a PIC-aware assembly code for i686
+# /usr/lib/rpm/redhat/redhat-hardened-cc1 in Koji/Brew does not
+# force PIC for assembly sources as of now
+%ifarch i386 i686
+sed -i -e '/^#define RDRAND_RETRY_LIMIT\t10/a#define __PIC__ 1' rdrand_asm.S
+%endif
 # a dirty hack so libdarn_impl_a_CFLAGS overrides common CFLAGS
 sed -i -e 's/$(libdarn_impl_a_CFLAGS) $(CFLAGS)/$(CFLAGS) $(libdarn_impl_a_CFLAGS)/' Makefile.in
 %configure %{?_without_pkcs11} %{?_without_rtlsdr}