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BaseTools/tools_def AARCH64 ARM: suppres PIE sections via linker script 

Recent distro builds of GCC 6 enable PIE linking by default, and allow
the previous behavior to be restored by passing the -no-pie command line
argument. Support for this was implemented by commits 1894a7c64c and
3380a59123 but unfortunately, it turns out that GCC 5 does not support
this command line argument, and exits with an error.

To avoid the need for yet another toolchain tag, to distinguish between
GCC 5 and GCC 6, let's use our GCC linker scripts when building objects
from .aslc files. This will ensure that the extra sections that are added
by the PIE linker are discarded from the ELF binary, and so they will not
corrupt the resulting .acpi file.

This reverts

1894a7c64c BaseTools/tools_def AARCH64 ARM: disable PIE linking
3380a59123 BaseTools/tools_def AARCH64 ARM: disable PIE linking for .aslc sources

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Ard Biesheuvel 2017-11-21 16:02:14 +00:00
parent 8794bf26c6
commit 14ca435fb6
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
BaseTools/Conf/tools_def.template
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@ -4356,9 +4356,10 @@ DEFINE GCC_IA32_X64_DLINK_COMMON = DEF(GCC_DLINK_FLAGS_COMMON) --gc-sections
DEFINE GCC_ARM_AARCH64_DLINK_COMMON= -Wl,--emit-relocs -nostdlib -Wl,--gc-sections -u $(IMAGE_ENTRY_POINT) -Wl,-e,$(IMAGE_ENTRY_POINT),-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map
DEFINE GCC_ARM_DLINK_FLAGS = DEF(GCC_ARM_AARCH64_DLINK_COMMON) -z common-page-size=0x20
DEFINE GCC_AARCH64_DLINK_FLAGS = DEF(GCC_ARM_AARCH64_DLINK_COMMON) -z common-page-size=0x20
DEFINE GCC_ARM_AARCH64_ASLDLINK_FLAGS = -Wl,--defsym=PECOFF_HEADER_SIZE=0 DEF(GCC_DLINK2_FLAGS_COMMON) -z common-page-size=0x20
DEFINE GCC_IA32_X64_ASLDLINK_FLAGS = DEF(GCC_IA32_X64_DLINK_COMMON) --entry _ReferenceAcpiTable -u $(IMAGE_ENTRY_POINT)
DEFINE GCC_ARM_ASLDLINK_FLAGS = DEF(GCC_ARM_DLINK_FLAGS) -Wl,--entry,ReferenceAcpiTable -u $(IMAGE_ENTRY_POINT)
DEFINE GCC_AARCH64_ASLDLINK_FLAGS = DEF(GCC_AARCH64_DLINK_FLAGS) -Wl,--entry,ReferenceAcpiTable -u $(IMAGE_ENTRY_POINT)
DEFINE GCC_ARM_ASLDLINK_FLAGS = DEF(GCC_ARM_DLINK_FLAGS) -Wl,--entry,ReferenceAcpiTable -u $(IMAGE_ENTRY_POINT) DEF(GCC_ARM_AARCH64_ASLDLINK_FLAGS)
DEFINE GCC_AARCH64_ASLDLINK_FLAGS = DEF(GCC_AARCH64_DLINK_FLAGS) -Wl,--entry,ReferenceAcpiTable -u $(IMAGE_ENTRY_POINT) DEF(GCC_ARM_AARCH64_ASLDLINK_FLAGS)
DEFINE GCC_IA32_X64_DLINK_FLAGS = DEF(GCC_IA32_X64_DLINK_COMMON) --entry _$(IMAGE_ENTRY_POINT) --file-alignment 0x20 --section-alignment 0x20 -Map $(DEST_DIR_DEBUG)/$(BASE_NAME).map
DEFINE GCC_IPF_DLINK_FLAGS = -nostdlib -O2 --gc-sections --dll -static --entry $(IMAGE_ENTRY_POINT) --undefined $(IMAGE_ENTRY_POINT) -Map $(DEST_DIR_DEBUG)/$(BASE_NAME).map
DEFINE GCC_IPF_OBJCOPY_FLAGS = -I elf64-ia64-little -O efi-bsdrv-ia64
@ -4494,12 +4495,12 @@ DEFINE GCC5_ARM_CC_FLAGS = DEF(GCC49_ARM_CC_FLAGS)
DEFINE GCC5_ARM_CC_XIPFLAGS = DEF(GCC49_ARM_CC_XIPFLAGS)
DEFINE GCC5_AARCH64_CC_FLAGS = DEF(GCC49_AARCH64_CC_FLAGS)
DEFINE GCC5_AARCH64_CC_XIPFLAGS = DEF(GCC49_AARCH64_CC_XIPFLAGS)
DEFINE GCC5_ARM_DLINK_FLAGS = DEF(GCC49_ARM_DLINK_FLAGS) -no-pie
DEFINE GCC5_ARM_DLINK_FLAGS = DEF(GCC49_ARM_DLINK_FLAGS)
DEFINE GCC5_ARM_DLINK2_FLAGS = DEF(GCC49_ARM_DLINK2_FLAGS) -Wno-error
DEFINE GCC5_AARCH64_DLINK_FLAGS = DEF(GCC49_AARCH64_DLINK_FLAGS) -no-pie
DEFINE GCC5_AARCH64_DLINK_FLAGS = DEF(GCC49_AARCH64_DLINK_FLAGS)
DEFINE GCC5_AARCH64_DLINK2_FLAGS = DEF(GCC49_AARCH64_DLINK2_FLAGS) -Wno-error
DEFINE GCC5_ARM_ASLDLINK_FLAGS = DEF(GCC49_ARM_ASLDLINK_FLAGS) -no-pie
DEFINE GCC5_AARCH64_ASLDLINK_FLAGS = DEF(GCC49_AARCH64_ASLDLINK_FLAGS) -no-pie
DEFINE GCC5_ARM_ASLDLINK_FLAGS = DEF(GCC49_ARM_ASLDLINK_FLAGS)
DEFINE GCC5_AARCH64_ASLDLINK_FLAGS = DEF(GCC49_AARCH64_ASLDLINK_FLAGS)
####################################################################################
#