From eabc0902155aa36f603f628360706767202affb2 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Wed, 30 Sep 2020 17:39:13 +0100 Subject: [PATCH] arm64: PIE: Do not skip static relocation When we build an arm64 target and enable POSITION_INDEPENDENT, we were skipping our build-time dynamic relocation fixup routine (STATIC_RELA). This was probably done because we didn't need it in this case, as the PIE fixup routine in start.S would take care of that at runtime. However when we now skip this routine (upon detecting that the fixup offset is 0), this might lead to uninitialised pointers. Remove the exception, so that we always do the build-time relocation. NOTE: GNU binutils starting with v2.27.1 do this build-time relocation automatically, to be in-line with other architecures. So on newer toolchains our manual fixup is actually not needed. It doesn't hurt to have it, though, so that we keep compatibility with the popular Linaro toolchains, which lack this feature. Signed-off-by: Andre Przywara Reviewed-by: Stephen Warren --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 2e08e9907a..a98dba3900 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -76,7 +76,7 @@ config GIC_V3_ITS config STATIC_RELA bool - default y if ARM64 && !POSITION_INDEPENDENT + default y if ARM64 config DMA_ADDR_T_64BIT bool