From 3322ecbfe29a16e74c4f584d661b0b8018bb4031 Mon Sep 17 00:00:00 2001
From: Raphael Moreira Zinsly <rzinsly@linux.ibm.com>
Date: Mon, 14 Sep 2020 11:59:24 -0300
Subject: [PATCH] powerpc: Protect dl_powerpc_cpu_features on INIT_ARCH() [BZ
#26615]
dl_powerpc_cpu_features also needs to be protected by __GLRO to check
for the _rtld_global_ro realocation before accessing it.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
---
sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h b/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h
index 17ddfcf528..c8fa07fadc 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h
@@ -38,7 +38,7 @@
unsigned long int hwcap = __GLRO(dl_hwcap); \
unsigned long int __attribute__((unused)) hwcap2 = __GLRO(dl_hwcap2); \
bool __attribute__((unused)) use_cached_memopt = \
- GLRO(dl_powerpc_cpu_features).use_cached_memopt; \
+ __GLRO(dl_powerpc_cpu_features.use_cached_memopt); \
if (hwcap & PPC_FEATURE_ARCH_2_06) \
hwcap |= PPC_FEATURE_ARCH_2_05 | \
PPC_FEATURE_POWER5_PLUS | \
--
2.27.0