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From: Andreas Schwab <schwab@suse.de>
To: grub-devel@gnu.org
Subject: [PATCH] riscv: fix computation of pc-relative relocation offset
Date: Wed, 26 Jun 2019 16:50:03 +0200	[thread overview]
Message-ID: <mvm7e98v1t0.fsf@suse.de> (raw)

The offset calculation was missing the relocation addend.

Signed-off-by: Andreas Schwab <schwab@suse.de>
---
 util/grub-mkimagexx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/grub-mkimagexx.c b/util/grub-mkimagexx.c
index bc087c2b5..d16ec63a1 100644
--- a/util/grub-mkimagexx.c
+++ b/util/grub-mkimagexx.c
@@ -1232,8 +1232,7 @@ SUFFIX (relocate_addrs) (Elf_Ehdr *e, struct section_metadata *smd,
 		 grub_uint32_t *t32 = (grub_uint32_t *) target;
 		 grub_uint16_t *t16 = (grub_uint16_t *) target;
 		 grub_uint8_t *t8 = (grub_uint8_t *) target;
-		 grub_int64_t off = (long)sym_addr - target_section_addr - offset
-				    - image_target->vaddr_offset;
+		 grub_int64_t off;
 
 		 /*
 		  * Instructions and instruction encoding are documented in the RISC-V
@@ -1243,6 +1242,7 @@ SUFFIX (relocate_addrs) (Elf_Ehdr *e, struct section_metadata *smd,
 		  */
 
 		 sym_addr += addend;
+		 off = sym_addr - target_section_addr - offset - image_target->vaddr_offset;
 
 		 switch (ELF_R_TYPE (info))
 		   {
-- 
2.22.0

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."


             reply	other threads:[~2019-06-26 14:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-26 14:50 Andreas Schwab [this message]
2019-07-09  7:06 ` [PATCH] riscv: fix computation of pc-relative relocation offset Chester Lin
2019-07-11 12:41   ` Daniel Kiper

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