19 Commits

Author SHA1 Message Date
Fangrui Song
2e30e31e1e [ELF] Claim recognized -z options. NFC
... so that we can reimplement `checkZOptions` using
https://reviews.llvm.org/D48433
2024-01-21 17:43:05 -08:00
Kazu Hirata
51fb76ff1d [lld] Use StringRef::consume_front_insensitive (NFC) 2024-01-12 22:08:26 -08:00
Fangrui Song
8d85c96e0e [lld] StringRef::{starts,ends}with => {starts,ends}_with. NFC
The latter form is now preferred to be similar to C++20 starts_with.
This replacement also removes one function call when startswith is not inlined.
2023-06-05 14:36:19 -07:00
Kazu Hirata
ed1539c6ad Migrate {starts,ends}with_insensitive to {starts,ends}_with_insensitive (NFC)
This patch migrates uses of StringRef::{starts,ends}with_insensitive
to StringRef::{starts,ends}_with_insensitive so that we can use names
similar to those used in std::string_view.

Note that the llvm/ directory has migrated in commit
6c3ea866e93003e16fc55d3b5cedd3bc371d1fde.

I'll post a separate patch to deprecate
StringRef::{starts,ends}with_insensitive.

Differential Revision: https://reviews.llvm.org/D150506
2023-05-16 10:12:42 -07:00
Scott Linder
45ee0a9afc [LLD] Add --lto-CGO[0-3] option
Allow controlling the CodeGenOpt::Level independent of the LTO
optimization level in LLD via new options for the COFF, ELF, MachO, and
wasm frontends to lld. Most are spelled as --lto-CGO[0-3], but COFF is
spelled as -opt:lldltocgo=[0-3].

See D57422 for discussion surrounding the issue of how to set the CG opt
level. The ultimate goal is to let each function control its CG opt
level, but until then the current default means it is impossible to
specify a CG opt level lower than 2 while using LTO. This option gives
the user a means to control it for as long as it is not handled on a
per-function basis.

Reviewed By: MaskRay, #lld-macho, int3

Differential Revision: https://reviews.llvm.org/D141970
2023-02-15 17:34:35 +00:00
Fangrui Song
4b2b68d5ab [lld] Change vector to SmallVector. NFC
My lld executable is 1.6KiB smaller and some functions are now more efficient.
2022-07-30 18:11:21 -07:00
Martin Storsjö
3c6f8ca7c9 [lld] Rename StringRef _lower() method calls to _insensitive() 2021-06-25 00:22:01 +03:00
Greg McGary
703d3f2597 [lld-macho] Make lld::getInteger() tolerate leading "0x"/"0X" when base is 16
ld64 is cool with leading `0x` for hex command-line args, and we should be also.

Reviewed By: #lld-macho, int3

Differential Revision: https://reviews.llvm.org/D88065
2020-09-22 08:56:20 -07:00
Jez Ng
22e6648a18 [lld-macho] Implement -headerpad
Tools like `install_name_tool` and `codesign` may modify the Mach-O
header and increase its size. The linker has to provide padding to make this
possible. This diff does that, plus sets its default value to 32 bytes (which
is what ld64 does).

Unlike ld64, however, we lay out our sections *exactly* `-headerpad` bytes from
the header, whereas ld64 just treats the padding requirement as a lower bound.
ld64 actually starts laying out the non-header sections in the __TEXT segment
from the end of the (page-aligned) segment rather than the front, so its
binaries typically have more than `-headerpad` bytes of actual padding.
We should consider implementing the same alignment behavior.

Reviewed By: #lld-macho, compnerd

Differential Revision: https://reviews.llvm.org/D84714
2020-07-30 14:29:31 -07:00
Rui Ueyama
136d27ab4d [Coding style change][lld] Rename variables for non-ELF ports
This patch does the same thing as r365595 to other subdirectories,
which completes the naming style change for the entire lld directory.

With this, the naming style conversion is complete for lld.

Differential Revision: https://reviews.llvm.org/D64473

llvm-svn: 365730
2019-07-11 05:40:30 +00:00
Sam Clegg
53211aa9f1 [lld] Allow args::getInterger to parse args larger than 2^31-1
Differential Revision: https://reviews.llvm.org/D62933

llvm-svn: 362770
2019-06-07 06:05:26 +00:00
Sam Clegg
5cdc91d003 [LTO] Set CGOptLevel in LTO config.
Previously we were never setting this which means it was always being
set to Default (-O2/-Os).

Differential Revision: https://reviews.llvm.org/D57422

llvm-svn: 352667
2019-01-30 20:46:18 +00:00
Chandler Carruth
2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Ryan Prichard
ed5bb932a2 Allow later -z name=<int> args to override earlier args
Summary:
lld already gives later -z options precedence in getZFlag().

This matches the behavior of ld.bfd and ld.gold, where later options
override earlier ones. (I tested with -z max-page-size and -z stack-size.)

Reviewers: ruiu, espindola, grimar

Reviewed By: ruiu, grimar

Subscribers: grimar, emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D52526

llvm-svn: 343145
2018-09-26 20:50:39 +00:00
Rui Ueyama
41831204c7 Rename a function to follow the LLVM coding style.
llvm-svn: 340716
2018-08-27 06:18:10 +00:00
Nico Weber
386bf1216e win: Omit ".exe" from lld warning and error messages.
This is a minor follow-up to https://reviews.llvm.org/D49189. On Windows, lld
used to print "lld-link.exe: error: ...". Now it just prints "lld-link: error:
...". This matches what link.exe does (it prints "LINK : ...") and makes lld's
output less dependent on the host system.

https://reviews.llvm.org/D51133

llvm-svn: 340487
2018-08-22 23:52:13 +00:00
Rui Ueyama
0dd56dcdd4 Handle --plugin-opt= options as alias options.
Previously, we had a loop to iterate over options starting with
`--plugin-opt=` and parse them by hand. But we can make OptTable
do that job for us.

Differential Revision: https://reviews.llvm.org/D47167

llvm-svn: 332935
2018-05-22 02:53:11 +00:00
Rui Ueyama
28c65bc20b Fix formatting.
llvm-svn: 319212
2017-11-28 20:01:30 +00:00
Rui Ueyama
3e03944f02 Factor out more code to Common/Args.cpp.
Differential Revision: https://reviews.llvm.org/D40540

llvm-svn: 319211
2017-11-28 19:58:45 +00:00