[ipxe-devel] [PATCH 1/1] elf2efi.c: ignore R_ARM_V4BX

Heinrich Schuchardt xypron.glpk at gmx.de
Sun Sep 10 15:12:16 UTC 2017


Relocation type R_ARM_V4BX requires no computation.
It marks the location of an ARMv4 branch exchange instruction.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
When using elf2efi.c in a separate project I happened to stumble
over this relocation type.

I would prefer if the change could be integrated into ipxe to have
one source for elf2efi.c
---
 src/util/elf2efi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/util/elf2efi.c b/src/util/elf2efi.c
index a0f3c67c..37989631 100644
--- a/src/util/elf2efi.c
+++ b/src/util/elf2efi.c
@@ -645,6 +645,9 @@ static void process_reloc ( struct elf_file *elf, const Elf_Shdr *shdr,
 			 * loaded.
 			 */
 			break;
+		case ELF_MREL(EM_ARM, R_ARM_V4BX):
+			/* Skip instructions without computation */
+			break;
 		default:
 			eprintf ( "Unrecognised relocation type %d\n", type );
 			exit ( 1 );
-- 
2.11.0




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