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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-07 19:42:35 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-07 19:42:35 +0300
commitf92e3da18b7d5941468040af962c201235148301 (patch)
tree45b05ba50dfe4c5de9cf99b889297a6b51449a8b /drivers/firmware/efi/libstub/arm64-stub.c
parent57e88b43b81301d9b28f124a5576ac43a1cf9e8d (diff)
parent6de47a5e371f75f80544986e6c9636211a2ae8af (diff)
downloadlinux-f92e3da18b7d5941468040af962c201235148301.tar.xz
Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar: "The main changes in this cycle were: - Transparently fall back to other poweroff method(s) if EFI poweroff fails (and returns) - Use separate PE/COFF section headers for the RX and RW parts of the ARM stub loader so that the firmware can use strict mapping permissions - Add support for requesting the firmware to wipe RAM at warm reboot - Increase the size of the random seed obtained from UEFI so CRNG fast init can complete earlier - Update the EFI framebuffer address if it points to a BAR that gets moved by the PCI resource allocation code - Enable "reset attack mitigation" of TPM environments: this is enabled if the kernel is configured with CONFIG_RESET_ATTACK_MITIGATION=y. - Clang related fixes - Misc cleanups, constification, refactoring, etc" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/bgrt: Use efi_mem_type() efi: Move efi_mem_type() to common code efi/reboot: Make function pointer orig_pm_power_off static efi/random: Increase size of firmware supplied randomness efi/libstub: Enable reset attack mitigation firmware/efi/esrt: Constify attribute_group structures firmware/efi: Constify attribute_group structures firmware/dcdbas: Constify attribute_group structures arm/efi: Split zImage code and data into separate PE/COFF sections arm/efi: Replace open coded constants with symbolic ones arm/efi: Remove pointless dummy .reloc section arm/efi: Remove forbidden values from the PE/COFF header drivers/fbdev/efifb: Allow BAR to be moved instead of claiming it efi/reboot: Fall back to original power-off method if EFI_RESET_SHUTDOWN returns efi/arm/arm64: Add missing assignment of efi.config_table efi/libstub/arm64: Set -fpie when building the EFI stub efi/libstub/arm64: Force 'hidden' visibility for section markers efi/libstub/arm64: Use hidden attribute for struct screen_info reference efi/arm: Don't mark ACPI reclaim memory as MEMBLOCK_NOMAP
Diffstat (limited to 'drivers/firmware/efi/libstub/arm64-stub.c')
-rw-r--r--drivers/firmware/efi/libstub/arm64-stub.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c
index af6ae95a5e34..b9bd827caa22 100644
--- a/drivers/firmware/efi/libstub/arm64-stub.c
+++ b/drivers/firmware/efi/libstub/arm64-stub.c
@@ -9,10 +9,18 @@
* published by the Free Software Foundation.
*
*/
+
+/*
+ * To prevent the compiler from emitting GOT-indirected (and thus absolute)
+ * references to the section markers, override their visibility as 'hidden'
+ */
+#pragma GCC visibility push(hidden)
+#include <asm/sections.h>
+#pragma GCC visibility pop
+
#include <linux/efi.h>
#include <asm/efi.h>
#include <asm/memory.h>
-#include <asm/sections.h>
#include <asm/sysreg.h>
#include "efistub.h"