Commit Graph

6 Commits

Author SHA1 Message Date
Georgii Rymar b87a0f7416 [llvm-readobj] - Report a warning when an unexpected DT_SYMENT tag value is met.
There was a short discussion about this:
https://reviews.llvm.org/D73484#inline-676942

To summarize:
It is a bit unclear to me why the `DT_SYMENT` tag exist.
LLD has the code that does:
"addInt(DT_SYMENT, sizeof(Elf_Sym));" and I guess other linkers has the same logic.
It is unclear why it can be possible to have other values rather than values of
a size of platform symbol. Seems it is not possible, and atm for me it looks that
this tag should not be used. This patch starts reporting the warning when the
value it contains differs from a symbol size for a 32/64 bit platform for safety.
It keeps the rest of the logic we have unchanged. Before this patch we did not handle
the tag at all.

Differential review: https://reviews.llvm.org/D74479
2020-02-18 14:36:17 +03:00
Georgii Rymar 2930dab315 [llvm-readobj] - Improve error message reported by DynRegionInfo.
DynRegionInfo is a helper class used to create memory ranges.
It is used for many things and can report errors.
Errors reported currently do not provide a good diagnostic.
This patch fixes it and adds a test for each possible case.

Differential revision: https://reviews.llvm.org/D73484
2020-01-30 14:34:20 +03:00
Georgii Rymar 5c6f8f73ff [llvm-readobj] - Add a test for --dyn-symbols when there are no dynamic symbols.
It removes the Object/readobj-absent.test test and creates a one more case in
dyn-symbols.test we have.

Differential revision: https://reviews.llvm.org/D73169
2020-01-27 12:34:58 +03:00
Georgii Rymar 5f6ff71641 [llvm-readobj][test] - Add a check for --dyn-syms.
We have a `-dyn-symbols` option. It has a `--dyn-syms` alias
that is not tested in llvm-readobj tests currently.

There was a Object/readobj-elf-versioning.test where it is used,
but I've removed it in D73163. And also it is not the
right place to test it anyways.

Differential revision: https://reviews.llvm.org/D73164
2020-01-23 12:20:19 +03:00
Georgii Rymar 18188a7f44 [llvm-readobj][test] - Improve dyn-symbols.test.
This removes the precompiled binary used, simplifies
the first test case, adds comments and llvm-readelf tool
invocations.
It also adds a test case for checking versioning symbols.

Differential revision: https://reviews.llvm.org/D71595
2019-12-19 11:39:45 +03:00
Georgii Rymar dbf520f617 [llvm-readobj][test] - Move platform specific test cases and their inputs to separate folders.
This creates the next subfolders in the test directory:
"COFF", "ELF", "MachO", "wasm".

I've also removed platform specific prefixes, like "coff-*".
One unused binary was removed as well: `Inputs/relocs.obj.elf-mips`

Differential revision: https://reviews.llvm.org/D71203
2019-12-10 11:36:23 +03:00