I'm cross-compiling avr-gcc statically (in order not to depend on Android linker) to work on aarch64 android devices. gcc is compiled with the flags: generic_arm64:/data/data/myapp/files/sdk/hardware/...

Let's say I have the following function in a static library libutil (with the definition in one of the library's translation units, so it can't be inlined while compiling the caller's translation unit)...

I want to activate LTO only outside my debug build in CMake. For Linux, this was as easy as if(${CMAKE_BUILD_TYPE} STREQUAL "Release" OR ${CMAKE_BUILD_TYPE} STREQUAL "Deploy") ...

I want to use my CMake script to cover both GCC and Clang for LTO and function-level linking (or whatever it's called -fdata-sections/-ffunction-sections). I have: add_compile_options( $<$<...

I have tried using clang -fPIC -flto -fsanitize=cfi -fvisibility=hidden -shared add.c -o libadd.so but I see the generated .so file doesn't have any cfi related symbols when used readelf? Please ...

I have firmware a project that needs to have some .text sections split up into different memory areas. They are spilt using the names of the source-code files, or by function name wildcards in the ...

Using lto RUSTFLAGS='-Clto' fails the build with the following error: error: lto can only be run for executables, cdylibs and static library outputs error: could not compile `rustls-platform-verifier` ...

I am using nightly rustc and LLVM 19.1 using clang-cl. I also unsuccessfully tried stable rustc 1.81.0 and clang-cl 18.1.8. Versions > rustc +nightly --version --verbose rustc 1.83.0-nightly (...

I am trying to build the Blink sample for the DA14531 with Jlink, but I get Error messages related to LTO. How to solve this error? use of LTO is disallowed in this variant of Arm Compiler for ...

There's an old project which needs to redefine symbol in build progress. I want to enable -flto, but it seems unable to redefine symbol now. echo "int foo(){return 0;}" > foo.c clang -c ...

(IMO) Cons when not inlined: call is unconditional branch (jump) with stack manipulation, and the x86 instruction table specifies it needs 4 uops/inst. and has reciprocal throughput of 2 for Zen4 ...

I'm tring to use gcc link-time optimizer, but encounter some issue related to the gcc linker cannot correctly resolving references to symbols in 'newlib_syscalls.c'. However, same source code , ...

Problem Statement Assume 32-bit MIPS I, and code written in C for an embedded system. When loading from an externally defined variable (extern int myVar;) that comes from a symbol defined in a linker ...

TL;DR: How do I fix* inline failures by LTO on compiler-generated functions? (* by "fix" I mean "eliminate warnings in a manner consistent with best practice." I want to remove the ...

I am trying to adapt the makefile presented here: https://github.com/EnzymeAD/Enzyme/issues/710 into a CMake file. Background: My library uses Enzyme AD system for lto generation of gradients. And on ...