heguanhui opened a new issue, #64170:
URL: https://github.com/apache/doris/issues/64170
### Version
trunk
### What's Wrong?
On aarch64, building Doris BE with LSAN, ASAN_UT, or ASAN sanitizer modes
fails during CMake configuration phase. The OpenBLAS getarch build-time tool
inherits sanitizer flags from the parent CMake context, which causes
LeakSanitizer to detect memory leaks in OpenBLAS's `detect()` function (strdup
without free on aarch64). This causes getarch to exit with non-zero code, and
CMake configuration fails.
The same root cause affects all three modes:
1. **LSAN**: `-fsanitize=leak` enables LeakSanitizer, getarch leaks memory →
CMake fails
2. **ASAN_UT**: `-fsanitize=address` includes LeakSanitizer, same leak
detected → CMake fails
3. **ASAN**: `-fsanitize=address` includes LeakSanitizer, same leak detected
→ CMake fails
Additionally, on aarch64 with UBSAN mode, `-mcmodel=medium` (x86_64-specific
flag) leaks into OpenBLAS/FAISS build context causing compilation failures.
Error example (LSAN):
```
==641==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 480 byte(s) in 96 object(s) allocated from:
#0 malloc
#1 strdup
#2 detect (getarch)
#3 get_corename (getarch)
#4 main (getarch)
SUMMARY: LeakSanitizer: 972 byte(s) leaked in 194 allocation(s).
```
### What You Expected?
BE should build successfully with LSAN/ASAN/ASAN_UT sanitizer modes on
aarch64, and BE UT should run normally.
### How to Reproduce?
On an aarch64 machine:
1. Build Doris BE with LSAN mode: `BUILD_TYPE=LSAN bash build.sh --be`
2. Or with ASAN_UT mode: `BUILD_TYPE=ASAN_UT bash build.sh --be`
3. Or with ASAN mode: `BUILD_TYPE=ASAN bash build.sh --be`
4. CMake configuration fails at OpenBLAS getarch step
### Are you willing to submit PR?
Yes
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