After r280733 we use LLVM's demangler in lld. As a result we no longer
have a discrepancy between f() and f(void) on FreeBSD (due to an issue
with FreeBSD's system demangler).
Restore a test case for a void arg function.
Differential Revision: https://reviews.llvm.org/D24305
llvm-svn: 280831
Previously we combined sections by name if linkerscript was used.
For that we had to disable SHF_MERGE handling temporarily, but then
found that implementing it properly will require additional complexity layers like
subsections or something.
At the same time looks we can live with multiple output sections approach for now.
That patch do this change.
Differential revision: https://reviews.llvm.org/D24127
llvm-svn: 280801
GNU ld supports [chars] wildcards in version scripts, to match a single instance of any of the chars.
Here is an extern example from libstdc++'s version script in FreeBSD:
extern "C++"
{
...
std::locale::_[T-Za-z]*;
std::[A-Zm]*;
std::n[^u]*;
std::nu[^m]*;
std::num[^e]*;
...
}
Patch adds support for scripts above. This is PR29093.
Differential revision: https://reviews.llvm.org/D23803
llvm-svn: 280799
Previously testcases were enabled only for shell.
r280733 added c++ itanium demangler to lld and we can enable them fully.
Also this change make quotes to be escaped:
extern "C++" -> extern \"C++\", which worked before just because we are dropping tokens
quotes internally at this moment.
llvm-svn: 280797
Patch implements FILL just as alias for =fillexpr.
This allows to make implementation much shorted and simpler than D24186.
Differential revision: https://reviews.llvm.org/D24227
llvm-svn: 280708
On most architectures the linker is required to optimize away any
references to __tls_get_addr in case of static linking. As usual
a special case is MIPS - libc defines __tls_get_addr itself because
there are no TLS optimizations for this architecture.
llvm-svn: 280664
It looks like MIPS dynamic loader does not support RELCOUNT tag.
Both gold/bfd linkers does not emit this tag on MIPS. I will investigate
the problem further but for now it is better to behave like GNU linkers.
llvm-svn: 280630
Use std::regex instead of hand written matcher.
Patch based on code and ideas of Rui Ueyama.
Differential revision: https://reviews.llvm.org/D23829
llvm-svn: 280544
od is defined by POSIX and exists since version 1 AT&T Unix.
hexdump is not part of any standard as far as I know.
So od is a better choice than hexdump.
Differential Revision: https://reviews.llvm.org/D24205
llvm-svn: 280536
Windows does not allow opened files to be removed. This patch
fixes two types of errors.
- Output file being the same as input file. Because LLD itself
holds a file descriptor of the input file, it cannot create an
output file with the same name as a new file.
- Removing files before releasing MemoryBuffer objects.
These tests are not failing no because MemoryBuffer happens to
decide not to use mmap on these files. But we shouldn't rely on
that behavior.
llvm-svn: 280507
Both bfd and gold accept:
foo = 1K;
bar = 1M;
zed = 1H;
And lowercase forms: k, m, h.
Patch adds support for that.
Differential revision: https://reviews.llvm.org/D24194
llvm-svn: 280494
FreeBSD's libstdc++ build (used on tier-2 architectures) uses GNU ld's
-f <name> option, which sets the DT_AUXILIARY field to the specified name.
Multiple -f options may be specified and the DT_AUXILIARY entries
will be added in the order in which they appear.
Patch implements that option.
Differential revision: https://reviews.llvm.org/D24139
llvm-svn: 280475
This is what InputSectionBase<ELFT>::relocate does and we need to be
consistent. The other option would be to be more explicit about which
relocations are signed and which are not, and sign extend only when
appropriated. That would require extending the target interface.
llvm-svn: 280366
Summary:
VERSION commands define symbol versions. The grammar of the
commnad is as follows
VERSION { version-script-commands }
where version-script-commands is
[ name ] { version-definitions }.
Note that we already support version-script-commands because
it is being used for version script command.
This patch is based on George's patch https://reviews.llvm.org/D23609
Reviewers: grimar
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D24089
llvm-svn: 280284
Symbol assignments outside of SECTIONS command need to be created
even when SECTIONS command is not used.
Differential Revision: https://reviews.llvm.org/D23751
llvm-svn: 280252
Before this lld was always creating common symbols itself. It worked,
but prevented them from being internalized when possible.
Now it preserves common symbols is the bitcode and they are internalized.
Fixes pr30184.
llvm-svn: 280242
As stated in PR28843:
we should handle command lines with
-target1-rel -target1-abs
--demangle --no-demangle
Patch implements this for specified options.
There are probably other conflicting options can exist,
so fix is called "partial".
Differential revision: https://reviews.llvm.org/D23867
llvm-svn: 280211
This patch groups relative relocations in a single block
in combrelocs mode and adds DT_RELCOUNT or DT_RELACOUNT
tag to .dynamic section
Differential revision: https://reviews.llvm.org/D23661
llvm-svn: 280210
Allows adding start and/or end symbols to special output sections,
like .eh_frame_hdr, which aren't lists of regular input sections.
Differential revision: https://reviews.llvm.org/D23716
llvm-svn: 280205
FreeBSD/mips script has non-wildcard filename specifications:
.text :
{
start.o(.text*)
Patch adds support for that, this is PR29115.
Differential revision: https://reviews.llvm.org/D23839
llvm-svn: 280069
Previously for extern keyword only names in quotes (exact match) was supported.
Patch adds support for wildcards, so next scripts can be handled properly:
LIBSAMPLE_1.0 {
global:
extern "C++" {
foo*;
};
};
Differential revision: https://reviews.llvm.org/D23794
llvm-svn: 280067
GNU gold handles output section fillers as 32-bit values.
This patch makes LLD compatible with that behavior.
Differential revision: https://reviews.llvm.org/D23181
llvm-svn: 280018
-oformat output-format
`-oformat' option can be used to specify the binary format for the output object file.
Patch implements binary format output type.
Differential revision: https://reviews.llvm.org/D23769
llvm-svn: 279726
The ARM Exception handling ABI requires that all ARM exception index
table sections have a prefix of .ARM.exidx and are combined into a
single contiguous block either in their own output section or as part
of another output section.
In general clang will output a single .ARM.exidx section per object,
but will use .ARM.exidx.<section name> when -ffunction-sections is used.
This change canonicalizes the names of sections with the .ARM.exidx
prefix to just .ARM.exidx, which ensures that there is only a single
output section.
Differential Revision: https://reviews.llvm.org/D23775
llvm-svn: 279617
Not only symbols (like sections) have names, in case where we
fail to create relocation against such symbol, we should not
print out an empty string, instead we should print a generic
message.
Differential Revision: https://reviews.llvm.org/D23731
llvm-svn: 279459
When performing ICF, we have to respect the alignment requirement
of each section within each group.
Differential Revision: https://reviews.llvm.org/D23732
llvm-svn: 279456
TLS on i386 in non-PIE/PIC code seems broken right now, because we don't
properly add the addend encoded in the instruction to the resulting
offset when processing R_386_TLS_LE relocations.
Extend one of the existing tests for TLS on i686 to use an addend.
PR: https://llvm.org/bugs/show_bug.cgi?id=29068
Reviewed by: ruiu
Differential Revision: https://reviews.llvm.org/D23741
llvm-svn: 279368
Eugene Leviant