Commit Graph

14 Commits

Author SHA1 Message Date
Fangrui Song 81cebfd008 [ELF][test] Change -o %t to -o /dev/null if the output is not needed 2020-02-12 21:54:50 -08:00
Fangrui Song db8dad20b3 [ELF][test] Change references of %T to %t.dir
Test files in the same directory share the same %T.  %T is easy to
misuse and cause race conditions (when running concurrently) so it has
been deprecated since D48842 (see docs/CommandGuide/lit.rst).

While here, add `rm -rf %t.dir` so that tests cannot depend on old files lying around.

Reviewed By: jhenderson, ruiu

Differential Revision: https://reviews.llvm.org/D69572
2019-10-30 09:22:48 -07:00
Rui Ueyama 016833bac2 lld: unquote possibly quoted `EXTERN("symbol")` entry in linker script.
gold accepts quoted strings. binutils requires quoted strings for some
kinds of symbols, e.g.:

  it accepts quoted symbols with @ in name:

  $ echo 'EXTERN("__libc_start_main@@GLIBC_2.2.5")' > a.script
  $ g++ a.script
  /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/crt1.o: In function `_start':
  (.text+0x20): undefined reference to `main'
  collect2: error: ld returned 1 exit status

  but rejects them if unquoted:

  $ echo 'EXTERN(__libc_start_main@@GLIBC_2.2.5)' > a.script
  $ g++ a.script
  a.script: file not recognized: File format not recognized
  collect2: error: ld returned 1 exit status

To maintain compatibility with existing linker scripts support quoted
strings in lld as well.

Patch by Lucian Adrian Grijincu.

Differential Revision: https://reviews.llvm.org/D57987

llvm-svn: 353756
2019-02-11 22:01:32 +00:00
Benjamin Kramer 3f47fcf102 [ELF] Keep tests from wrinting to the test directory.
llvm-svn: 322943
2018-01-19 14:15:13 +00:00
Alexander Richardson 1de78471f5 [ELF] Fall back to search dirs for linker scripts specified with -T
Summary:
This matches the behaviour of ld.bfd:
https://sourceware.org/binutils/docs/ld/Options.html#Options

If scriptfile does not exist in the current directory, ld looks for it in
the directories specified by any preceding '-L' options. Multiple '-T'
options accumulate.

Reviewers: ruiu, grimar

Reviewed By: ruiu, grimar

Subscribers: emaste, llvm-commits

Differential Revision: https://reviews.llvm.org/D40129

llvm-svn: 318655
2017-11-20 15:43:20 +00:00
George Rimar de2d1066ae [ELF] - Do not report multiple errors for single one in ScriptLexer::setError.
Previously up to 3 errors were reported at once,
with patch we always will report only one,
just like in other linker code.

Differential revision: https://reviews.llvm.org/D37015

llvm-svn: 311537
2017-08-23 08:48:39 +00:00
George Rimar d450065308 [ELF] - Linkerscript: Fall back to search paths when INCLUDE not found
From https://sourceware.org/binutils/docs/ld/File-Commands.html:
The file will be searched for in the current directory, and in any 
directory specified with the -L option.

Patch done by Alexander Richardson.

Differential revision: https://reviews.llvm.org/D27831

llvm-svn: 290247
2016-12-21 09:42:25 +00:00
Rui Ueyama df41b13b09 Remove `REQUIRES: shell` hack to workaround an echo issue.
These tests are disabled on Windows, but they seem to work just fine now,
so I'll enable them.

llvm-svn: 289251
2016-12-09 18:49:37 +00:00
Rui Ueyama 89ccd0f31c Split linkerscript.s into small test files.
linkerscript.s is the first test file for linker script, and at the moment
it contains all tests for linker scripts. Now that test file doesn't make
sense.

linkerscript2.s was just badly named. Renamed searchdir.s.

llvm-svn: 289148
2016-12-08 22:36:12 +00:00
Rui Ueyama 3c04f8d790 Print a warning message if ENTRY() symbol is not found.
llvm-svn: 289146
2016-12-08 22:26:31 +00:00
Rui Ueyama 8da7aa0894 Allow linker-script-defined entry symbols.
Previously, we were checking the existence of an entry symbol
too early. It was done before the linker script processor creates
symbols defined in scripts. Fixes bug 30743.

llvm-svn: 284676
2016-10-20 00:07:36 +00:00
Rafael Espindola db62cbb97f Don't produce an error for undefined entry symbol.
This is particularly important when the symbol comes from a linker
script. It is common to use the same linker script for shared
libraries and executables. Without this we would always fail to link
shared libraries with -z,defs and a linker script with an ENTRY
directive.

llvm-svn: 281989
2016-09-20 17:14:16 +00:00
Rafael Espindola c8e7c98b66 Redirect stderr to /dev/null. NFC.
Makes the error output less confusing when this test fails.

llvm-svn: 281985
2016-09-20 17:02:38 +00:00
Davide Italiano e71b25b7d1 [ELF] Move linker script tests to a subdirectory. NFCI.
llvm-svn: 276582
2016-07-24 23:29:18 +00:00