Commit Graph

4 Commits

Author SHA1 Message Date
George Rimar e3fb2d549b Recommit r369190 "[llvm-readobj/llvm-readelf] - Improve/cleanup the error reporting API."
Fix: Add a `consumeError` call removed by mistake to 'printStackSize',
this should fix the "Expected<T> must be checked before access or destruction." reported by following bot:
http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/9743/steps/stage%201%20check/logs/stdio

Original commit message:
Currently we have the following functions for error reporting:

LLVM_ATTRIBUTE_NORETURN void reportError(Twine Msg);
void reportError(Error Err, StringRef Input); 
void reportWarning(Twine Msg);
void reportWarning(StringRef Input, Error Err);
void warn(llvm::Error Err);
void error(std::error_code EC);

Problems are: naming is inconsistent, arguments order is inconsistent,
some of the functions looks excessive.

After applying this patch we have:

void reportError(Error Err, StringRef Input); 
void reportError(std::error_code EC, StringRef Input);
void reportWarning(Error Err, StringRef Input);

I'd be happy to remove reportError(std::error_code EC, StringRef Input) too, but it
is used by COFF heavily.

Test cases were updated, they show an improvement introduced.

Differential revision: https://reviews.llvm.org/D66286

llvm-svn: 369194
2019-08-17 16:07:18 +00:00
George Rimar c35d4c900d Revert r369190, r369192 ([llvm-readobj/llvm-readelf] - Improve/cleanup the error reporting API.)
It caused multiple BB failtures:

http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/9743/steps/stage%201%20check/logs/stdio
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-sde-avx512-linux/builds/26042/steps/ninja%20check%201/logs/FAIL%3A%20LLVM%3A%3Astack-sizes.test

llvm-svn: 369193
2019-08-17 15:36:06 +00:00
George Rimar bb56755f15 [llvm-readobj/llvm-readelf] - Improve/cleanup the error reporting API.
urrently we have the following functions for error reporting:

--
LLVM_ATTRIBUTE_NORETURN void reportError(Twine Msg);
void reportError(Error Err, StringRef Input); 
void reportWarning(Twine Msg);
void reportWarning(StringRef Input, Error Err);
void warn(llvm::Error Err);
void error(std::error_code EC);
---

Problems are: naming is inconsistent, arguments order is inconsistent,
some of the functions looks excessive.

After applying this patch we have:

---
LLVM_ATTRIBUTE_NORETURN void reportError(Error Err, StringRef Input); 
LLVM_ATTRIBUTE_NORETURN void reportError(std::error_code EC, StringRef Input);
void reportWarning(Error Err, StringRef Input);
---

I'd be happy to remove reportError(std::error_code EC, StringRef Input) too, but it
is used by COFF heavily.

Test cases were updated, they show an improvement introduced.

Differential revision: https://reviews.llvm.org/D66286

llvm-svn: 369190
2019-08-17 14:36:40 +00:00
Jordan Rupprecht 63ac3e5cbe [llvm-readelf] Implement note parsing for NT_FILE and unknown descriptors
Summary:
This patch implements two note parsers; one for NT_FILE coredumps, e.g.:

```
  CORE                  0x00000080      NT_FILE (mapped files)
    Page size: 4096
                 Start                 End         Page Offset
    0x0000000000001000  0x0000000000002000  0x0000000000003000
        /path/to/a.out
    0x0000000000004000  0x0000000000005000  0x0000000000006000
        /path/to/libc.so
    0x0000000000007000  0x0000000000008000  0x0000000000009000
        [stack]
```

(A more realistic example can be tested locally by creating a crashing program and running `llvm-readelf -n core`)

And also implements a raw hex dump for unknown descriptor data for unhandled descriptor types.

Reviewers: MaskRay, jhenderson, grimar, alexshap

Reviewed By: MaskRay, grimar

Subscribers: emaste, llvm-commits, labath

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65832

llvm-svn: 368698
2019-08-13 14:38:45 +00:00