[libc-commits] [libc] [libc] Baremetal target builds should be static (PR #208055)

[Prabhu Rajasekaran via libc-commits]

https://github.com/Prabhuk created https://github.com/llvm/llvm-project/pull/208055

We are noticing that the baremetal target builds produce GOT relocations
since we set `-fpie`. Excluding baremetal builds from setting this flag
as they are typically just static builds.


>From b9d0d1a747838136eb6ef3d2d9d68a20aaa23146 Mon Sep 17 00:00:00 2001
From: prabhukr <prabhukr at google.com>
Date: Tue, 7 Jul 2026 17:16:15 +0000
Subject: [PATCH] [libc] Baremetal target builds should be static

We are noticing that the baremetal target builds produce GOT relocations
since we set `-fpie`. Excluding baremetal builds from setting this flag
as they are typically just static builds.
---
 libc/cmake/modules/LLVMLibCCompileOptionRules.cmake | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake b/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
index b013152effa4c..ebc82c2ac8cee 100644
--- a/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
+++ b/libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
@@ -223,7 +223,9 @@ function(_get_common_compile_options output_var flags)
   set(compile_options ${LIBC_COMPILE_OPTIONS_DEFAULT} ${compile_flags} ${config_flags} ${arch_flags})
 
   if(LLVM_LIBC_COMPILER_IS_GCC_COMPATIBLE)
-    list(APPEND compile_options "-fpie")
+    if(NOT LIBC_TARGET_OS_IS_BAREMETAL)
+      list(APPEND compile_options "-fpie")
+    endif()
 
     if(LLVM_LIBC_FULL_BUILD)
       # Only add -ffreestanding flag in non-GPU full build mode.