[Crash-utility] Re: [PATCH] arm64: support an X86_64 target on an ARM64 host

On 10/3/26 1:32 PM, Dave Young wrote: Copy some comments here, but please make sure to send plain text inline patch as above (use git send-email for safe if you are not sure how to setup email clients). /* necessary header files */ typedef unsigned int u32; +#if defined(X86_64) && !defined(__x86_64__) +#include "lkcd_x86_64_pt_regs.h" /* for pt_regs */ +#else #include <asm/ptrace.h> /* for pt_regs */ +#endif Above chunk is unreachable. That #include sits inside below if condition: #if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \ defined(S390X) || defined(ARM64) || defined(MIPS) || \ defined(MIPS64) || defined(SPARC64) || defined(RISCV64) || \ defined(LOONGARCH64) 2. Remove TARGET_CFLAGS_X86_64_ON_ARM64 as it is identical to the TARGET_CFLAGS_X86_64 3. machine_type("X86") in filesys.c is unreachable: configure.c never allows target=X86 on an arm64 host. Harmless defensive symmetry. 4. lkcd_x86_64_pt_regs.h: Copyright line is wrong (2025), please remove or update it.