[compiler-rt] [compiler-rt] Hardcode uptr/sptr typedefs on Mips/Linux (PR #141201)

[Khem Raj via llvm-commits]

https://github.com/kraj created https://github.com/llvm/llvm-project/pull/141201

Sanitizer build on Mips/Linux faills to build due to assertion errors mismatched definitions. This is due to inconsistent definitions of `uptr` of either `unsigned long` or `unsigned int` in compiler-rt. This is caused by clang defining

__UINTPTR_TYPE__ long unsigned int where as gcc defines it as unsigned int

As a workaround, this hardcodes `uptr`/`sptr` in compiler-rt to `unsigned int`/`int` on Linux Mips, matching gcc.

>From 9178e3a0872e45042bcfa600edbb6e9ebb75929b Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem at gmail.com>
Date: Thu, 22 May 2025 21:50:45 -0700
Subject: [PATCH] [compiler-rt] Hardcode uptr/sptr typedefs on Mips/Linux

Sanitizer build on Mips/Linux faills to build due to assertion errors
mismatched definitions. This is due to inconsistent definitions of
`uptr` of either `unsigned long` or `unsigned int` in compiler-rt. This
is caused by clang defining

__UINTPTR_TYPE__ long unsigned int where as gcc defines it as
unsigned int

As a workaround, this hardcodes `uptr`/`sptr` in compiler-rt to
`unsigned int`/`int` on Linux Mips, matching gcc.

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h b/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h
index fff60c96f632f..511ee8fe49ccd 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h
@@ -139,7 +139,7 @@
 namespace __sanitizer {
 
 #if defined(__UINTPTR_TYPE__)
-#  if defined(__arm__) && defined(__linux__)
+#  if (defined(__arm__) || _ABIO32 == 1) && defined(__linux__)
 // Linux Arm headers redefine __UINTPTR_TYPE__ and disagree with clang/gcc.
 typedef unsigned int uptr;
 typedef int sptr;