[PATCH v3 07/23] riscv: implement elf_apply_relocations() for ELF relocation support

[Sascha Hauer]

Add architecture-specific ELF relocation support for RISC-V,
enabling dynamic relocation of position-independent ELF binaries.
The implemetation reuses the existing relocate_image().

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply at anthropic.com>
Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/riscv/lib/reloc.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/riscv/lib/reloc.c b/arch/riscv/lib/reloc.c
index 18b13a7013cff4032c12b999470f265dbda13c51..71d59d4ab62ec07e23bc2ae3d9932f8d2baa7a81 100644
--- a/arch/riscv/lib/reloc.c
+++ b/arch/riscv/lib/reloc.c
@@ -75,3 +75,19 @@ void relocate_to_current_adr(void)
 
 	sync_caches_for_execution();
 }
+
+int elf_apply_relocations(struct elf_image *elf, const void *dyn_seg)
+{
+	void *rela_ptr = NULL, *symtab = NULL;
+	u64 relasz;
+	phys_addr_t base = (phys_addr_t)elf->reloc_offset;
+	int ret;
+
+	ret = elf_parse_dynamic_section_rela(elf, dyn_seg, &rela_ptr, &relasz, &symtab);
+	if (ret)
+		return ret;
+
+	relocate_image(base, rela_ptr, rela_ptr + relasz, symtab, NULL);
+
+	return 0;
+}

-- 
2.47.3