[all-commits] [llvm/llvm-project] 282f10: [sanitizer_common] Fix internal_*stat on Linux/spa...

[Rainer Orth via All-commits]

  Branch: refs/heads/release/19.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 282f103026c78e1881843aee61ac412c153f6df9
      https://github.com/llvm/llvm-project/commit/282f103026c78e1881843aee61ac412c153f6df9
  Author: Rainer Orth <ro at gcc.gnu.org>
  Date:   2024-08-10 (Sat, 10 Aug 2024)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp

  Log Message:
  -----------
  [sanitizer_common] Fix internal_*stat on Linux/sparc64 (#101012)

```
  SanitizerCommon-Unit :: ./Sanitizer-sparcv9-Test/SanitizerCommon/FileOps
```
`FAIL`s on 64-bit Linux/sparc64:
```
projects/compiler-rt/lib/sanitizer_common/tests/./Sanitizer-sparcv9-Test --gtest_filter=SanitizerCommon.FileOps
--
compiler-rt/lib/sanitizer_common/tests/sanitizer_libc_test.cpp:144: Failure
Expected equality of these values:
  len1 + len2
    Which is: 10
  fsize
    Which is: 1721875535
```
The issue is similar to the mips64 case: the Linux/sparc64 `*stat`
syscalls take a `struct kernel_stat64 *` arg. Also the syscalls actually
used differ.

This patch handles this, adopting the mips64 code to avoid too much
duplication.

Tested on `sparc64-unknown-linux-gnu` and `x86_64-pc-linux-gnu`.

(cherry picked from commit fcd6bd5587cc376cd8f43b60d1c7d61fdfe0f535)



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