[PATCH] tools/perf: Fix compiling with libelf on rv32
cp0613 at linux.alibaba.com
cp0613 at linux.alibaba.com
Mon Apr 15 02:55:32 PDT 2024
From: Chen Pei <cp0613 at linux.alibaba.com>
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.
Signed-off-by: Chen Pei <cp0613 at linux.alibaba.com>
---
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
--
2.25.1
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