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authorLuís Marques <luismarques@lowrisc.org>2019-11-21 22:52:51 +0000
committerLuís Marques <luismarques@lowrisc.org>2019-11-21 22:54:10 +0000
commitb8b57087d3a6954204c6c968fb3de1dc67a87c59 (patch)
tree1838c27002647284081031fc8d4c51e48a2bf8c8 /llvm/lib/Object/RelocationResolver.cpp
parent52e377497ddc3aa7178d4fd4c0cda096df4d8a72 (diff)
downloadbcm5719-llvm-b8b57087d3a6954204c6c968fb3de1dc67a87c59.tar.gz
bcm5719-llvm-b8b57087d3a6954204c6c968fb3de1dc67a87c59.zip
[Object][RISCV] Fix R_RISCV_SET6 and R_RISCV_SUB6 relocations resolution
Summary: These relocations had a suspicious resolution logic, given their name. This patch makes the resolution match the LLD one, which makes more sense. Reviewers: asb, lenary, HsiangKai, jrtc27 Reviewed By: HsiangKai Tags: #llvm Differential Revision: https://reviews.llvm.org/D70396
Diffstat (limited to 'llvm/lib/Object/RelocationResolver.cpp')
-rw-r--r--llvm/lib/Object/RelocationResolver.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Object/RelocationResolver.cpp b/llvm/lib/Object/RelocationResolver.cpp
index ca89f5671b8..97c69677f58 100644
--- a/llvm/lib/Object/RelocationResolver.cpp
+++ b/llvm/lib/Object/RelocationResolver.cpp
@@ -363,9 +363,9 @@ static uint64_t resolveRISCV(RelocationRef R, uint64_t S, uint64_t A) {
case ELF::R_RISCV_64:
return S + RA;
case ELF::R_RISCV_SET6:
- return (A + (S + RA)) & 0xFF;
+ return (A & 0xC0) | ((S + RA) & 0x3F);
case ELF::R_RISCV_SUB6:
- return (A - (S + RA)) & 0xFF;
+ return (A & 0xC0) | (((A & 0x3F) - (S + RA)) & 0x3F);
case ELF::R_RISCV_ADD8:
return (A + (S + RA)) & 0xFF;
case ELF::R_RISCV_SUB8:
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