michaelh/zephyr
1
0
Fork 0
Code Releases Activity

arch: arm: aarch64: Force LP64 ABI

Browse source 
This commit adds the GCC `-mabi=lp64` flag to force the LP64 (64-bit
long and pointer) ABI, which is mandatory for running the Zephyr
AArch64 architecture port.

Note that this flag is, strictly speaking, not necessary in most cases
because the AArch64 GCC defaults to using the LP64 ABI. This flag is
required, however, if compiling Zephyr with a GCC that is configured
with `--with-abi=ilp32`, which makes ILP32 the default ABI.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit is contained in:
Stephanos Ioannidis 2020-04-21 16:52:57 +09:00 • committed by Carles Cufí
commit df4fdeed97
1 changed files with 5 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

11
cmake/compiler/gcc/target_arm.cmake
View file

@ -1,11 +1,10 @@
# SPDX-License-Identifier: Apache-2.0
if(CONFIG_ARM64)
list(APPEND TOOLCHAIN_C_FLAGS
-mcpu=${GCC_M_CPU}
)
list(APPEND TOOLCHAIN_LD_FLAGS
-mcpu=${GCC_M_CPU}
)
list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
list(APPEND TOOLCHAIN_LD_FLAGS -mcpu=${GCC_M_CPU})
list(APPEND TOOLCHAIN_C_FLAGS -mabi=lp64)
list(APPEND TOOLCHAIN_LD_FLAGS -mabi=lp64)
else()
list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
list(APPEND TOOLCHAIN_LD_FLAGS -mcpu=${GCC_M_CPU})