Hi, I am trying to compile the OpenBSD SPARC64 kernel with LLVM. Here’s what I did :
1. first, compile with gcc, save the commands log, replace “cc” with “clang”, change some parameters to match clang’s (for example, gcc has “-mno-fpu”, clang has “-msoft-float”, etc) 2. compile with clang 3. link with the “ld” linker in the end - "ld -n -T ld.script --warn-common -nopie -o bsd *.o” 4. make install -> the resulting kernel is copied in /bsd 5. reboot in qemu : qemu-system-sparc64 -m 4g -drive file=disk.qcow2,if=ide,bus=0,unit=0 -nographic OpenBIOS for Sparc64 Configuration device id QEMU version 1 machine id 0 kernel cmdline CPUs: 1 x SUNW,UltraSPARC-IIi UUID: 00000000-0000-0000-0000-000000000000 Welcome to OpenBIOS v1.1 built on Jun 21 2022 21:07 Type 'help' for detailed information Trying disk:a... Not a bootable ELF image Not a bootable a.out image Loading FCode image... Loaded 6888 bytes entry point is 0x4000 Evaluating FCode... OpenBSD IEEE 1275 Bootblock 2.1 ..>> OpenBSD BOOT 1.22 Trying bsd... Booting /pci@1fe,0/pci@1,1/ide@3/ide@0/disk@0:a/bsd 11635744@0x1000000+5088@0x1b18c20+144268@0x1c00000+4050036@0x1c2338c symbols @ 0xfee48580 239+637704+436800 start=0x1480000 [ using 1076152 bytes of bsd ELF symbol table ] Unimplemented service set-symbol-lookup ([2] -- [0]) Unhandled Exception 0x0000000000000030 PC = 0x0000000001493780 NPC = 0x0000000001493784 Stopping execution Any ideas ?
