[RFC PATCH 11/12] perf symbols: Add RISC-V PLT entry sizes

[Zane Leung]

From: liangzhen <zhen.liang at spacemit.com>

Add PLT header and entry size definitions for RISC-V architecture.

RISC-V uses:
- PLT header size: 32 bytes
- PLT entry size: 16 bytes

This allows perf to correctly identify and display PLT symbols
instead of showing them as [unknown].

Signed-off-by: liangzhen <zhen.liang at spacemit.com>
---
 tools/perf/util/symbol-elf.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 76912c62b6a0..e54ff59eb6ef 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -379,6 +379,10 @@ static bool get_plt_sizes(struct dso *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr_plt,
 		*plt_header_size = 32;
 		*plt_entry_size = 16;
 		return true;
+	case EM_RISCV:
+		*plt_header_size = 32;
+		*plt_entry_size = 16;
+		return true;
 	case EM_SPARC:
 		*plt_header_size = 48;
 		*plt_entry_size = 12;
-- 
2.34.1