| Issue |
136235
|
| Summary |
[LLD][COFF] undefined section symbol is not being handled correctly
|
| Labels |
lld
|
| Assignees |
|
| Reporter |
NikitaSmith057
|
### dll.c
```C
__declspec(dllexport) void foo() {}
```
### main.c
```C
extern char __IMPORT_DESCRIPTOR_dll;
int main()
{
// force linker to pull in archive member with undefined .idata$4 symbol
void *p = &__IMPORT_DESCRIPTOR_dll;
}
```
### Build Steps
1. `cl /c dll.c`
2. `link dll.obj /dll`
3. `cl /c main.c`
4. `lld-link dll.lib main.obj`
Error: `lld-link: error: section larger than 4 GiB: .data`
Linking in step 2 with lld produces a different error: `lld-link: error: dll.lib(dll.dll): .idata$4 should not refer to special section 0`
I think lld misinterprets these symbols in dll.lib, the symbol values are actually section flags that linker is supposed to match with resolved .idata$4 section.
```
...
004 C0000040 UNDEF notype Section | .idata$4
005 C0000040 UNDEF notype Section | .idata$5
...
```
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