View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000183 | file | General | public | 2020-08-18 09:37 | 2020-08-22 18:04 |
| Reporter | liuzhiqiang | Assigned To | christos | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Product Version | 5.39 | ||||
| Fixed in Version | 5.40 | ||||
| Summary | 0000183: “PR 93：file incorrectly recognizes -static-pie binaries” should be reopened. | ||||
| Description | “PR 93：file incorrectly recognizes -static-pie binaries”should be reopened. To solve “PR 93：file incorrectly recognizes -static-pie binaries”, one patch (24c9c086cd7c5) is introduced in v5.38. However, the patch will lead to a new problem, "file incorrectly recognizes shared objects" problem. So, patch (028a15617a7f) is created to undo the patch (24c9c086cd7c5) to solve "file incorrectly recognizes shared objects" problem. Finally, "file incorrectly recognizes shared objects" problem is solved, while “PR 93：file incorrectly recognizes -static-pie binaries”problem occurs again. So we need to solve it. “PR 93：file incorrectly recognizes -static-pie binaries”: https://bugs.astron.com/view.php?id=93 | ||||
| Steps To Reproduce | file version: v5.39 details can be found in https://bugs.astron.com/view.php?id=93. 1. Create a simple hello word C program 2. Compile it using gcc -fPIE -static-pie -o test test.c 3. Run file on the resulting binary Output: test: ELF 64-bit LSB pie executable, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=4594afb38f3f60aaad10d08ab519fcaeae55ee70, for GNU/Linux 3.2.0, not stripped It should actually be reported as statically linked, check with ldd: $ ldd test statically linked | ||||
| Tags | No tags attached. | ||||
|
|
Well, this is because static-pie binaries are special... (In order to be loaded anywhere they have a dynamic section). 1. run 'readelf -d test': A dynamic section in a static binary? 2. run 'gcc -fPIE -static -static-pie -o test test.c': oops it does not work :-) /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/crtbeginT.o: relocation R_X86_64_32 against hidden symbol `__TMC_END__' can not be used when making a PIE object collect2: error: ld returned 1 exit status I guess file detection can be improved |
|
|
Fixed, thanks. It will now call them "static-pie linked". |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2020-08-18 09:37 | liuzhiqiang | New Issue | |
| 2020-08-22 14:16 | christos | Assigned To | => christos |
| 2020-08-22 14:16 | christos | Status | new => assigned |
| 2020-08-22 14:30 | christos | Status | assigned => feedback |
| 2020-08-22 14:30 | christos | Note Added: 0003449 | |
| 2020-08-22 14:31 | christos | Status | feedback => acknowledged |
| 2020-08-22 18:04 | christos | Status | acknowledged => resolved |
| 2020-08-22 18:04 | christos | Resolution | open => fixed |
| 2020-08-22 18:04 | christos | Fixed in Version | => 5.40 |
| 2020-08-22 18:04 | christos | Note Added: 0003450 |
