| Issue |
107749
|
| Summary |
[lld elf] Segfault within ld-linux in -nostdlib executable
|
| Labels |
|
| Assignees |
|
| Reporter |
yaram
|
When linking an executable with `-nostdlib`, no PIE, and no linked dynamic libraries, the executable wil crash with a segmentation fault within `audit_list_add_dynamic_tag` in the ld-linux interpreter. Switching to PIE, or linking any dynamic libraries fixes the crash.
Steps to reproduce:
1. Create some simple `main.c`
```c
void _start() {
while(1);
}
```
2. Run the following commands to generate a minimal object and link it into an executable
```sh
clang -nostdlib -nostdinc -c -o main.o main.c
clang -fuse-ld=lld -nostdlib -o test main.o
```
3.
Run the generated executable, producing the segmentation fault
```sh
./test
```
I suspect the issue is due to missing dynamic segments in the executable trying to be accessed by ld-linux. Perhaps lld or clang frontend is adding the .interp section when it should not be.
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