linux - 使用 ASAN 时如何修复错误 "cannot run C compiled programs"

Question

问题:运行configure 脚本工作正常，可以使用C 编译器并运行生成的程序。一旦添加了 ASAN，配置脚本就会提示生成的程序无法运行。

./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
...

对比

./configure CFLAGS="-fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer -fstack-protector" LDFLAGS="-fsanitize=undefined -fsanitize=address" --enable-debug
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether CFLAGS can be modified... yes
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... configure: error: in `/tmp/test-asan':
configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details

config.log 显示:

configure:3653: checking whether we are cross compiling
configure:3661: gcc -o conftest -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer -fstack-protector  -fsanitize=undefined -fsanitize=address conftest.c  >&5
configure:3665: $? = 0
configure:3672: ./conftest
==9941==LeakSanitizer has encountered a fatal error.
==9941==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1
==9941==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc)
configure:3676: $? = 1
configure:3683: error: in `/tmp/test-asan':
configure:3685: error: cannot run C compiled programs.

Answer 1

我在使用“podman build”(“docker build”有效)时遇到了同样的问题。添加 ptrace 作为功能可能是可行的。但另一个解决方法是设置 ASAN_OPTIONS=detect_leaks=0(在我的例子中，在 ./configure 和 make test 期间)。