From b828a23a75a012b9242166b78ff1c3ff2189f436 Mon Sep 17 00:00:00 2001 From: Chen Pei Date: Mon, 15 Apr 2024 17:55:32 +0800 Subject: [PATCH] perf genelf: Fix compiling with libelf on rv32 When cross-compiling perf with libelf, the following error occurred: In file included from tests/genelf.c:14: tests/../util/genelf.h:50:2: error: #error "unsupported architecture" 50 | #error "unsupported architecture" | ^~~~~ tests/../util/genelf.h:59:5: warning: "GEN_ELF_CLASS" is not defined, evaluates to 0 [-Wundef] 59 | #if GEN_ELF_CLASS == ELFCLASS64 Fix this by adding GEN-ELF-ARCH and GEN-ELF-CLASS definitions for rv32. Reviewed-by: Ian Rogers Signed-off-by: Chen Pei Cc: Albert Ou Cc: Palmer Dabbelt Cc: Paul Walmsley Link: https://lore.kernel.org/r/20240415095532.4930-1-cp0613@linux.alibaba.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/genelf.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/util/genelf.h b/tools/perf/util/genelf.h index 5f18d20ea903..4e2e4f40e134 100644 --- a/tools/perf/util/genelf.h +++ b/tools/perf/util/genelf.h @@ -43,6 +43,9 @@ int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_ent #elif defined(__riscv) && __riscv_xlen == 64 #define GEN_ELF_ARCH EM_RISCV #define GEN_ELF_CLASS ELFCLASS64 +#elif defined(__riscv) && __riscv_xlen == 32 +#define GEN_ELF_ARCH EM_RISCV +#define GEN_ELF_CLASS ELFCLASS32 #elif defined(__loongarch__) #define GEN_ELF_ARCH EM_LOONGARCH #define GEN_ELF_CLASS ELFCLASS64