https://sourceware.org/bugzilla/show_bug.cgi?id=34681
Bug ID: 34681
Summary: ld: $d mapping symbol address outside .eh_frame
section range
Product: binutils
Version: 2.47
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: jiannmao at qq dot com
Target Milestone: ---
## Summary
After linking three objects compiled by clang, the output shared object
contains `$d` mapping symbols whose `st_value` does not fall inside the
`.eh_frame` section range that their `st_shndx` points to.
## Environment
- GNU ld 2.47, aarch64 (Linux)
- clang 24
## Reproducer
```bash
echo 'int f0(int x) { return x + 0; }' > t0.cpp
echo 'int f1(int x) { return x + 1; }' > t1.cpp
echo 'int f2(int x) { return x + 2; }' > t2.cpp
clang++ -O2 -c t0.cpp -o t0.o
clang++ -O2 -c t1.cpp -o t1.o
clang++ -O2 -c t2.cpp -o t2.o
ld -shared t0.o t1.o t2.o -o repro.so
```
## Actual result
```
$ readelf -SW repro.so | grep eh_frame
[ 6] .eh_frame PROGBITS 0000000000000240 000240 000054 00 A ...
$ readelf -sW repro.so | grep '$d'
14: 0000000000000240 0 NOTYPE LOCAL DEFAULT 6 $d
18: 0000000000000240 0 NOTYPE LOCAL DEFAULT 6 $d
22: 0000000000000230 0 NOTYPE LOCAL DEFAULT 6 $d <-- out of
range
```
`.eh_frame` spans 0x240–0x294, but the third symbol's value is 0x230, below
the section start, while its `st_shndx` says `.eh_frame`.
## Notes
- The same sources compiled with g++ and linked with ld show no out-of-range
symbols.
- The same sources compiled with clang++ and linked with lld show no
out-of-range symbols.
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