[all-commits] [llvm/llvm-project] 3907d1: [sanitizer_common] Heed __ndbl_ prefix for 32-bit ...

[Rainer Orth via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3907d186d627f8957627b2861cf6f879d07c93c2
      https://github.com/llvm/llvm-project/commit/3907d186d627f8957627b2861cf6f879d07c93c2
  Author: Rainer Orth <ro at gcc.gnu.org>
  Date:   2024-09-24 (Tue, 24 Sep 2024)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc

  Log Message:
  -----------
  [sanitizer_common] Heed __ndbl_ prefix for 32-bit Linux/sparc64 inter… (#109106)

…ceptors

When ASan testing is enabled on SPARC as per PR #107405, a couple of
tests `FAIL` on Linux/sparc64:
```
  AddressSanitizer-sparc-linux :: TestCases/printf-2.c
  AddressSanitizer-sparc-linux :: TestCases/printf-3.c
  AddressSanitizer-sparc-linux :: TestCases/printf-4.c
  AddressSanitizer-sparc-linux :: TestCases/printf-5.c

  SanitizerCommon-asan-sparc-Linux :: Linux/unexpected_format_specifier_test.cpp
```
It turns out the interceptors aren't used since on Linux/sparc64
`double` and `long double` are the same, and a couple of `stdio`
functions are prefixed with `__nldbl_` (no long double) accordingly.

This patch handles this.

Tested on `sparc64-unknown-linux-gnu`.



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