[libc-commits] [libc] [libc] fix sysconf test for rv32 (PR #162685)

[via libc-commits]

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@@ -90,7 +91,7 @@ LIBC_INLINE void Vector::fallback_initialize_unsync() {
                                      PROT_READ | PROT_WRITE,
                                      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
   // We do not proceed if mmap fails.
-  if (mmap_ret <= 0)
+  if (mmap_ret <= 0 && mmap_ret > -EXEC_PAGESIZE)
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lntue wrote:

I think we should restrict this extra condition to RV32 only, and add comments to explain the reason.

https://github.com/llvm/llvm-project/pull/162685