我正在研究 Renesas 的 rcar gen 3 平台,尤其是 arm-trusted-firmware 级别。
1. bootparam_sa0.srec Loader(Boot parameter) <======= arm-trusted-firmware
2. bl2-m3ulcb.srec Loader <======= arm-trusted-firmware
3. cert_header_sa6.srec Loader(Certification) <======= arm-trusted-firmware
4. bl31-m3ulcb.srec ARM Trusted Firmware <======= arm-trusted-firmware
5. tee-m3ulcb.srec Open Portable Trusted OS <======= optee-os
6. u-boot-elf.srec U-Boot <======= u-boot
我使用 Gcc v5.4 通过命令构建了 BL31
$ make ARCH=aarch64 CROSS_COMPILE=aarch64-linux-gnu- PLAT=rcar LSI=M3 RCAR_GEN3_ULCB=1 RCAR_LOSSY_ENABLE=1 RCAR_DRAM_SPLIT=2 PMIC_LEVEL_MODE=0 bl31
但我遇到了以下错误:
"
Including services/spd/opteed/opteed.mk
AS bl31/aarch64/runtime_exceptions.S
bl31/aarch64/runtime_exceptions.S: Assembler messages:
bl31/aarch64/runtime_exceptions.S:183: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:191: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:196: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:201: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:215: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:219: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:223: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:227: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:241: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:245: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:249: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:257: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:271: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:275: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:279: Error: non-constant expression in ".if" statement
bl31/aarch64/runtime_exceptions.S:287: Error: non-constant expression in ".if" statement
Makefile:556: recipe for target 'build/rcar/release/bl31/runtime_exceptions.o' failed
make: *** [build/rcar/release/bl31/runtime_exceptions.o] Error 1
"
同样的错误:https ://github.com/ARM-software/tf-issues/issues/417
汇编代码是正确的,显然不是问题。
似乎它取决于编译器。我试图安装 gcc/g++ 7.4 交叉:
在 Ubuntu 16.04 上,并将 Makefile 修改为使用 gcc-7 (cross)、g++-7 (cross),但仍然出现此错误。我该如何克服这个错误?