(1) In romlayout.S, .fixedaddr.\addr sections do have not the SHF_ALLOC flag.
It does not make sense to reference a SHF_ALLOC section from a non-SHF_ALLOC
section via R_386_PC16.
GNU ld allows it but lld will warn. Add the SHF_ALLOC flag.
(2) lld requires output section descriptions to be sorted by address.
Just sort the addresses beforehand.
Signed-off-by: Fangrui Song <mask...@google.com>
---
scripts/layoutrom.py | 4 ++++
src/romlayout.S | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/scripts/layoutrom.py b/scripts/layoutrom.py
index 6616721..4c55390 100755
--- a/scripts/layoutrom.py
+++ b/scripts/layoutrom.py
@@ -321,6 +321,10 @@ def outXRefs(sections, useseg=0, exportsyms=[],
forcedelta=0):
# Write LD script includes for the given sections
def outSections(sections, useseg=0):
+ if useseg:
+ sections.sort(key=lambda x: x.finalsegloc)
+ else:
+ sections.sort(key=lambda x: x.finalloc)
out = ""
for section in sections:
loc = section.finalloc
diff --git a/src/romlayout.S b/src/romlayout.S
index c4a4635..a854783 100644
--- a/src/romlayout.S
+++ b/src/romlayout.S
@@ -587,7 +587,7 @@ entry_18:
// Specify a location in the fixed part of bios area.
.macro ORG addr
- .section .fixedaddr.\addr
+ .section .fixedaddr.\addr,"a"
.endm
ORG 0xe05b
--
2.26.0.rc2.310.g2932bb562d-goog
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