请教各位,如何解决 warning: stack protector not protecting local variables: variable length buffer
資深大佬 : fenglala 30
编译器: https://releases.linaro.org/components/toolchain/binaries/7.5-2019.12/arm-eabi/gcc-linaro-7.5.0-2019.12-x86_64_arm-eabi.tar.xz
test.c:
struct Foo{ char a[32]; // 32 and above will produce warning, but 31 and below will not char d[9]; // 9 and above will produce warning, but 8 and below will not }; int main() { struct Foo foo = {0}; (void)(foo); return 0; }
编译命令及输出:
$ arm-eabi-gcc -Wstack-protector -fstack-protector-all -fstack-check -o test test.c test.c: In function ‘main’: test.c:6:5: warning: stack protector not protecting local variables: variable length buffer [-Wstack-protector] int main() ^~~~
实际代码中的结构体类似上文的 Foo ,我不能改,但是 main 我可以改,请问怎么改 main 能解决这个 warning ?
感谢各位!
各位也可以去 https://stackoverflow.com/questions/70133887/how-can-i-fix-warning-stack-protector-not-protecting-local-variables-variable 上回答,我 Google 了一圈都没找到怎么解。
大佬有話說 (3)