[Crash-utility] [PATCH 1/5] build: allow cross compiling for loongarch64 and powerpc64le

ARCH is taken from the CROSS_COMPILE prefix, so the Debian cross triplets powerpc64le-linux-gnu- and loongarch64-linux-gnu- produced ARCH=powerpc64le and ARCH=loongarch64, which the CONF_TARGET_ARCH chain did not recognise and make stopped with "does not support cross compilation". Map powerpc64le to PPC64 and loongarch64 to LOONGARCH64. The gdb host triplet is derived from CROSS_COMPILE itself, so nothing else is needed. Both targets matter for CI: ppc64el is an Ubuntu architecture with archive packages for the target gmp/mpfr, and loongarch64 has a cross toolchain in Ubuntu 26.04. Signed-off-by: Dave Young <yangrr.2009(a)tsinghua.org.cn&gt; Assisted-by: LLM Signed-off-by: Dave Young <yangrr.2009(a)tsinghua.org.cn&gt; --- Makefile | 4 ++++ README | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 5b56b2403413..9ca9e6d90d5a 100644 --- a/Makefile +++ b/Makefile @@ -61,6 +61,8 @@ else ifeq (${ARCH}, powerpc64) CONF_TARGET_ARCH := PPC64 else ifeq (${ARCH}, ppc64le) CONF_TARGET_ARCH := PPC64 +else ifeq (${ARCH}, powerpc64le) +CONF_TARGET_ARCH := PPC64 else ifeq (${ARCH}, alpha) CONF_TARGET_ARCH := ALPHA else ifeq (${ARCH}, i386) @@ -71,6 +73,8 @@ else ifeq (${ARCH}, sparc64) CONF_TARGET_ARCH := SPARC64 else ifeq (${ARCH}, riscv64) CONF_TARGET_ARCH := RISCV64 +else ifeq (${ARCH}, loongarch64) +CONF_TARGET_ARCH := LOONGARCH64 else $(error The current Arch(${ARCH}) does not support cross compilation) endif diff --git a/README b/README index 271725ecbbd5..999ac3f60d5f 100644 --- a/README +++ b/README @@ -103,7 +103,7 @@ To cross compile the crash utility for aarch64 on x86_64: $ make CROSS_COMPILE=aarch64-linux-gnu- -j`nproc` - Supported arches for cross compilation: x86_64, x86, aarch64, s390x, powerpc64, alpha, sparc64, mips, riscv64 + Supported arches for cross compilation: x86_64, x86, aarch64, s390x, powerpc64, powerpc64le, alpha, sparc64, mips, riscv64, loongarch64 The initial build will take several minutes because the embedded gdb module must be configured and built. Alternatively, the crash source RPM file -- 2.51.1