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llvm-project/lld/ELF/Options.td

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[ELF2] Add a new ELF linker based on the new PE/COFF linker. Differential Revision: http://reviews.llvm.org/D11188 llvm-svn: 243161
2015-07-25 05:03:07 +08:00
include "llvm/Option/OptParser.td"
Allow both one and two dashes for all multi-letter options. GNU ld's manual page says that all options whose names are multiple letters, except those who start with "o", can start either with one or two dashes. llvm-svn: 273218
2016-06-21 07:10:40 +08:00
// For options whose names are multiple letters, either one dash or
// two can precede the option name except those that start with 'o'.
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
class F<string name>: Flag<["--", "-"], name>;
class J<string name>: Joined<["--", "-"], name>;
class S<string name>: Separate<["--", "-"], name>;
class JS<string name>: JoinedOrSeparate<["--", "-"], name>;
[ELF2] Add support for -Bsymbolic. llvm-svn: 250225
2015-10-14 05:02:34 +08:00
[ELF] - Fix for: bug 30237 - lld does not implement -f option 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
2016-09-02 17:13:05 +08:00
def auxiliary: S<"auxiliary">, HelpText<"Set DT_AUXILIARY field to the specified name">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def Bsymbolic: F<"Bsymbolic">, HelpText<"Bind defined symbols locally">;
ELF: Implement --build-id. This patch implements --build-id. After the linker creates an output file in the memory buffer, it computes the FNV1 hash of the resulting file and set the hash to the .note section as a build-id. GNU ld and gold have the same feature, but their default choice of the hash function is different. Their default is SHA1. We made a deliberate choice to not use a secure hash function for the sake of performance. Computing a secure hash is slow -- for example, MD5 throughput is usually 400 MB/s or so. SHA1 is slower than that. As a result, if you pass --build-id to gold, then the linker becomes about 10% slower than that without the option. We observed a similar degradation in an experimental implementation of build-id for LLD. On the other hand, we observed only 1-2% performance degradation with the FNV hash. Since build-id is not for digital certificate or anything, we think that a very small probability of collision is acceptable. We considered using other signals such as using input file timestamps as inputs to a secure hash function. But such signals would have an issue with build reproducibility (if you build a binary from the same source tree using the same toolchain, the build id should become the same.) GNU linkers accepts --build-id=<style> option where style is one of "MD5", "SHA1", or an arbitrary hex string. That option is out of scope of this patch. http://reviews.llvm.org/D18091 llvm-svn: 263292
2016-03-12 04:51:53 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def Bsymbolic_functions: F<"Bsymbolic-functions">,
HelpText<"Bind defined function symbols locally">;
ELF: Implement --build-id=md5. Previously, we supported only one hash function, FNV-1, so BuildIdSection directly handled hash computation. In this patch, I made BuildIdSection an abstract class and defined two subclasses, BuildIdFnv1 and BuildIdMd5. llvm-svn: 265737
2016-04-08 06:49:21 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def Bdynamic: F<"Bdynamic">, HelpText<"Link against shared libraries">;
def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries">;
def build_id: F<"build-id">, HelpText<"Generate build ID note">;
def build_id_eq: J<"build-id=">, HelpText<"Generate build ID note">;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def L: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
Make -L description a bit more precise. llvm-svn: 270966
2016-05-27 12:48:26 +08:00
HelpText<"Add a directory to the library search path">;
Start adding support for creating shared libraries. They are not fully functional yet, but this implements enough support for lld itself to read them. With that, delete the .so binary we were using for tests and start eating our own dog food. llvm-svn: 247487
2015-09-12 06:42:45 +08:00
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def O: Joined<["-"], "O">, HelpText<"Optimize output file size">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
[ELF] - Accept both "-" and "--" for Ttext/Tdata/Tbss options. llvm-svn: 285900
2016-11-03 20:49:25 +08:00
def Tbss: S<"Tbss">, HelpText<"Same as --section-start with .bss as the sectionname">;
[ELF] - Implemented --section-start, -Ttext, -Tdata, -Tbss options. --section-start=sectionname=org Locate a section in the output file at the absolute address given by org. You may use this option as many times as necessary to locate multiple sections in the command line. org must be a single hexadecimal integer; for compatibility with other linkers, you may omit the leading `0x' usually associated with hexadecimal values. Note: there should be no white space between sectionname, the equals sign (“<=>”), and org. -Tbss=org -Tdata=org -Ttext=org Same as --section-start, with .bss, .data or .text as the sectionname. Differential revision: https://reviews.llvm.org/D24294 llvm-svn: 281458
2016-09-14 21:07:13 +08:00
[ELF] - Accept both "-" and "--" for Ttext/Tdata/Tbss options. llvm-svn: 285900
2016-11-03 20:49:25 +08:00
def Tdata: S<"Tdata">, HelpText<"Same as --section-start with .data as the sectionname">;
[ELF] - Implemented --section-start, -Ttext, -Tdata, -Tbss options. --section-start=sectionname=org Locate a section in the output file at the absolute address given by org. You may use this option as many times as necessary to locate multiple sections in the command line. org must be a single hexadecimal integer; for compatibility with other linkers, you may omit the leading `0x' usually associated with hexadecimal values. Note: there should be no white space between sectionname, the equals sign (“<=>”), and org. -Tbss=org -Tdata=org -Ttext=org Same as --section-start, with .bss, .data or .text as the sectionname. Differential revision: https://reviews.llvm.org/D24294 llvm-svn: 281458
2016-09-14 21:07:13 +08:00
[ELF] - Accept both "-" and "--" for Ttext/Tdata/Tbss options. llvm-svn: 285900
2016-11-03 20:49:25 +08:00
def Ttext: S<"Ttext">, HelpText<"Same as --section-start with .text as the sectionname">;
[ELF] - Implemented --section-start, -Ttext, -Tdata, -Tbss options. --section-start=sectionname=org Locate a section in the output file at the absolute address given by org. You may use this option as many times as necessary to locate multiple sections in the command line. org must be a single hexadecimal integer; for compatibility with other linkers, you may omit the leading `0x' usually associated with hexadecimal values. Note: there should be no white space between sectionname, the equals sign (“<=>”), and org. -Tbss=org -Tdata=org -Ttext=org Same as --section-start, with .bss, .data or .text as the sectionname. Differential revision: https://reviews.llvm.org/D24294 llvm-svn: 281458
2016-09-14 21:07:13 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def allow_multiple_definition: F<"allow-multiple-definition">,
HelpText<"Allow multiple definitions">;
def as_needed: F<"as-needed">,
HelpText<"Only set DT_NEEDED for shared libraries if used">;
Parse and store the value of the -O option. llvm-svn: 251136
2015-10-24 03:02:19 +08:00
Make -color-diagnostics an alias to -color-diagnostics=always. Previously, that was an alias to -color-diagnostics=auto. However, Clang's -fcolor-diagnostics is an alias to -fcolor-diagnostics=always, so that was confusing. This patch fixes that issue. llvm-svn: 290332
2016-12-22 16:20:28 +08:00
def color_diagnostics: F<"color-diagnostics">,
HelpText<"Use colors in diagnostics">;
def color_diagnostics_eq: J<"color-diagnostics=">,
Support -color-diagnostics={auto,always,never}. -color-diagnostics=auto is default because that's the same as Clang's default. When color is enabled, error or warning messages are colored like this. error: <bold>ld.lld</bold> <red>error:</red> foo.o: no such file warning: <bold>ld.lld</bold> <magenta>warning:</magenta> foo.o: no such file Differential Revision: https://reviews.llvm.org/D27117 llvm-svn: 287949
2016-11-26 04:27:32 +08:00
HelpText<"Use colors in diagnostics">;
Do not allocate space for common symbols with -r Currently ld.lld -r allocates space for common symbols, whereas ld.bfd -r doesn't. As a result the OpenBSD makefile bits for creating libraries fail as they use ld -X -r to strip local symbols, which results in duplicate symbol errors because space for the common symbols has been allocated. The diff also implements the --define-commons option such that allocation of commons can be forced even if -r is used. Patch by Mark Kettenis. llvm-svn: 292878
2017-01-24 11:41:20 +08:00
def define_common: F<"define-common">,
HelpText<"Assign space to common symbols">;
Move a flag definition to the right place as -demangle is not ignored. llvm-svn: 292049
2017-01-15 11:45:46 +08:00
def demangle: F<"demangle">, HelpText<"Demangle symbol names">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def disable_new_dtags: F<"disable-new-dtags">,
HelpText<"Disable new dynamic tags">;
Implement --export-dynamic. llvm-svn: 248347
2015-09-23 07:38:23 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def discard_all: F<"discard-all">, HelpText<"Delete all local symbols">;
def discard_locals: F<"discard-locals">,
HelpText<"Delete temporary local symbols">;
def discard_none: F<"discard-none">,
HelpText<"Keep all symbols in the symbol table">;
def dynamic_linker: S<"dynamic-linker">,
ELF2: Tidy up Options.td. Fix indentation and sort options alphabetically. llvm-svn: 248969
2015-10-01 08:33:02 +08:00
HelpText<"Which dynamic linker to use">;
Implement --noinhibit-exec. Patch by George Rimar! llvm-svn: 248605
2015-09-26 03:24:57 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def dynamic_list: S<"dynamic-list">,
ELF: Implement --dynamic-list This patch implements the --dynamic-list option, which adds a list of global symbol that either should not be bounded by default definition when creating shared libraries, or add in dynamic symbol table in the case of creating executables. The patch modifies the ScriptParserBase class to use a list of Token instead of StringRef, which contains information if the token is a quoted or unquoted strings. It is used to use a faster search for exact match symbol name. The input file follow a similar format of linker script with some simplifications (it does not have scope or node names). It leads to a simplified parser define in DynamicList.{cpp,h}. Different from ld/gold neither glob pattern nor mangled names (extern 'C++') are currently supported. llvm-svn: 266227
2016-04-14 02:51:11 +08:00
HelpText<"Read a list of dynamic symbols">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def eh_frame_hdr: F<"eh-frame-hdr">,
HelpText<"Request creation of .eh_frame_hdr section and PT_GNU_EH_FRAME segment header">;
ELF: Implement --start-lib and --end-lib start-lib and end-lib are options to link object files in the same semantics as archive files. If an object is in start-lib and end-lib, the object is linked only when the file is needed to resolve undefined symbols. That means, if an object is in start-lib and end-lib, it behaves as if it were in an archive file. In this patch, I introduced a new notion, LazyObjectFile. That is analogous to Archive file type, but that works for a single object file instead of for an archive file. http://reviews.llvm.org/D18814 llvm-svn: 265710
2016-04-08 03:24:51 +08:00
Recommit r294464 "[ELF] - Added partial support for --emit-relocs (no --gc-section case, no /DISCARD/ support) #3" with temporarily file name fix in testcase. Original commit message: -q, --emit-relocs - Generate relocations in output Simplest implementation: * no GC case, * no "/DISCARD/" linkerscript command support. This patch is extracted from D28612 / D29636, Relative to PR31579. Differential revision: https://reviews.llvm.org/D29663 llvm-svn: 294469
2017-02-09 00:18:10 +08:00
def emit_relocs: F<"emit-relocs">, HelpText<"Generate relocations in output">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def enable_new_dtags: F<"enable-new-dtags">,
HelpText<"Enable new dynamic tags">;
def end_lib: F<"end-lib">,
HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;
def entry: S<"entry">, MetaVarName<"<entry>">,
ELF2: Tidy up Options.td. Fix indentation and sort options alphabetically. llvm-svn: 248969
2015-10-01 08:33:02 +08:00
HelpText<"Name of entry point symbol">;
[ELF2] Add support for -discard-none. Differential Revision: http://reviews.llvm.org/D13083 llvm-svn: 248499
2015-09-24 23:08:23 +08:00
Limit default maximum number of errors to 20. This is in the context of https://llvm.org/bugs/show_bug.cgi?id=31109. When LLD prints out errors for relocations, it tends to print out extremely large number of errors (like millions) because it would print out one error per relocation. This patch makes LLD bail out if it prints out more than 20 errors. You can configure the limitation using -error-limit argument. -error-limit=0 means no limit. I chose the flag name because Clang has the same feature as -ferror-limit. "f" doesn't make sense to us, so I omitted it. Differential Revision: https://reviews.llvm.org/D26981 llvm-svn: 287789
2016-11-24 02:15:37 +08:00
def error_limit: S<"error-limit">,
HelpText<"Maximum number of errors to emit before stopping (0 = no limit)">;
[ELF] Add warn-unresolved-symbols/error-unresolved-symbols options Patch by Dmitry Mikulin. PR: 31735 Differential Revision: https://reviews.llvm.org/D29150 llvm-svn: 293139
2017-01-26 10:19:20 +08:00
def error_undef: F<"error-unresolved-symbols">,
HelpText<"Report unresolved symbols as errors">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def export_dynamic: F<"export-dynamic">,
HelpText<"Put symbols in the dynamic symbol table">;
Add support for -L and -l command line switches. Patch by Igor Kudrin! llvm-svn: 248708
2015-09-28 20:52:21 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def export_dynamic_symbol: S<"export-dynamic-symbol">,
ELF: Implement --export-dynamic-symbol. llvm-svn: 267184
2016-04-23 02:44:06 +08:00
HelpText<"Put a symbol in the dynamic symbol table">;
[ELF] - Implemented --fatal-warnings option. --fatal-warnings: Treat warnings as errors DIfferential revision: http://reviews.llvm.org/D21969 llvm-svn: 274504
2016-07-04 21:43:12 +08:00
def fatal_warnings: F<"fatal-warnings">,
HelpText<"Treat warnings as errors">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def fini: S<"fini">, MetaVarName<"<symbol>">,
[ELF2] Add DT_INIT and DT_FINI dynamic table entries The entries are added if there are "_init" or "_fini" entries in the symbol table respectively. According to the behavior of ld, entries are inserted even for undefined symbols. Symbol names can be overridden by using -init and -fini command line switches. If used, these switches neither add new symbol table entries nor require those symbols to be resolved. Differential Revision: http://reviews.llvm.org/D13385 llvm-svn: 249297
2015-10-05 18:29:46 +08:00
HelpText<"Specify a finalizer function">;
Call _exit. As the state of lld gets more complicated, shutting down gets more expensive. In a normal lld run we can just call _exit immediately after renaming the temporary output file. We still want the ability to run a full shutdown since that is useful for detecting memory leaks. This patch adds a --full-shutdown flag and changes lit to use it. llvm-svn: 285224
2016-10-27 02:59:00 +08:00
def full_shutdown : F<"full-shutdown">,
HelpText<"Perform a full shutdown instead of calling _exit">;
[ELF] Add support for -b binary Implemented by building an ELF file in memory. elf, default, and binary match gold behavior. Differential Revision: https://reviews.llvm.org/D24060 llvm-svn: 281108
2016-09-10 06:08:04 +08:00
def format: J<"format=">, MetaVarName<"<input-format>">,
HelpText<"Change the input format of the inputs following this option">;
[ELF] - Sort command line options. NFC. llvm-svn: 280803
2016-09-07 19:43:18 +08:00
def gc_sections: F<"gc-sections">,
HelpText<"Enable garbage collection of unused sections">;
[ELF] - Partial support of --gdb-index command line option (Part 1). In this patch partial gdb_index section is created. For costructing the .gdb_index section 6 steps should be performed (details are in SplitDebugInfo.cpp file header), this patch do first 3: Creates proper section header. Fills list of compilation units. Types CU list area is not supposed to be supported, so it is ignored and therefore can be treated as implemented either. Differential revision: https://reviews.llvm.org/D24706 llvm-svn: 284708
2016-10-20 17:19:48 +08:00
def gdb_index: F<"gdb-index">,
HelpText<"Generate .gdb_index section">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def hash_style: S<"hash-style">,
[ELF2] Add support for GNU Hash section This patch implements --hash-style command line switch. * By default, or with "sysv" or "both" parameters, the linker generates a standard ELF hash section. * With "gnu" or "both", it produces a GNU-style hash section. That section requires the symbols in the dynamic symbol table section, which are referenced in the GNU hash section, to be placed after not hashed ones and to be sorted to correspond the order of hash buckets in the GNU Hash section. The division function, as well as estimations for the section's parameters, are just the first rough attempt and the subjects for further adjustments. Differential Revision: http://reviews.llvm.org/D13815 llvm-svn: 251000
2015-10-22 16:21:35 +08:00
HelpText<"Specify hash style (sysv, gnu or both)">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def help: F<"help">, HelpText<"Print option help">;
def icf: F<"icf=all">, HelpText<"Enable identical code folding">;
ELF2: Implement --gc-sections. Section garbage collection is a feature to remove unused sections from outputs. Unused sections are sections that cannot be reachable from known GC-root symbols or sections. Naturally the feature is implemented as a mark-sweep garbage collector. In this patch, I added Live bit to InputSectionBase. If and only if Live bit is on, the section will be written to the output. Starting from GC-root symbols or sections, a new function, markLive(), visits all reachable sections and sets their Live bits. Writer then ignores sections whose Live bit is off, so that such sections are excluded from the output. This change has small negative impact on performance if you use the feature because making sections means more work. The time to link Clang changes from 0.356s to 0.386s, or +8%. It reduces Clang size from 57,764,984 bytes to 55,296,600 bytes. That is 4.3% reduction. http://reviews.llvm.org/D13950 llvm-svn: 251043
2015-10-23 02:49:53 +08:00
[ELF] Support for setting the base address The -image-base option allows for overriding the base address. Differential Revision: http://reviews.llvm.org/D22116 llvm-svn: 275206
2016-07-13 03:37:53 +08:00
def image_base : J<"image-base=">, HelpText<"Set the base address">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def init: S<"init">, MetaVarName<"<symbol>">,
[ELF2] Add DT_INIT and DT_FINI dynamic table entries The entries are added if there are "_init" or "_fini" entries in the symbol table respectively. According to the behavior of ld, entries are inserted even for undefined symbols. Symbol names can be overridden by using -init and -fini command line switches. If used, these switches neither add new symbol table entries nor require those symbols to be resolved. Differential Revision: http://reviews.llvm.org/D13385 llvm-svn: 249297
2015-10-05 18:29:46 +08:00
HelpText<"Specify an initializer function">;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def l: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,
ELF2: Tidy up Options.td. Fix indentation and sort options alphabetically. llvm-svn: 248969
2015-10-01 08:33:02 +08:00
HelpText<"Root name of library to use">;
Implement --allow-multiple-definition. Patch by George Rimar! llvm-svn: 248733
2015-09-29 04:30:11 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def lto_O: J<"lto-O">, MetaVarName<"<opt-level>">,
ELF: Add flag for controlling LTO optimization level. Differential Revision: http://reviews.llvm.org/D18667 llvm-svn: 265053
2016-04-01 05:00:27 +08:00
HelpText<"Optimization level for LTO">;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
Add a help text for -Map. llvm-svn: 292045
2017-01-15 10:52:14 +08:00
def Map: JS<"Map">, HelpText<"Print a link map to the specified file">;
Implement -Map. The format is not exactly the same as the one in bfd since bfd always follows a linker script and prints it along. llvm-svn: 291958
2017-01-14 05:05:46 +08:00
Add -nostdlib. llvm-svn: 280528
2016-09-03 03:20:33 +08:00
def nostdlib: F<"nostdlib">,
HelpText<"Only search directories specified on the command line">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def no_as_needed: F<"no-as-needed">,
HelpText<"Always DT_NEEDED for shared libraries">;
Support -color-diagnostics={auto,always,never}. -color-diagnostics=auto is default because that's the same as Clang's default. When color is enabled, error or warning messages are colored like this. error: <bold>ld.lld</bold> <red>error:</red> foo.o: no such file warning: <bold>ld.lld</bold> <magenta>warning:</magenta> foo.o: no such file Differential Revision: https://reviews.llvm.org/D27117 llvm-svn: 287949
2016-11-26 04:27:32 +08:00
def no_color_diagnostics: F<"no-color-diagnostics">,
HelpText<"Do not use colors in diagnostics">;
Do not allocate space for common symbols with -r Currently ld.lld -r allocates space for common symbols, whereas ld.bfd -r doesn't. As a result the OpenBSD makefile bits for creating libraries fail as they use ld -X -r to strip local symbols, which results in duplicate symbol errors because space for the common symbols has been allocated. The diff also implements the --define-commons option such that allocation of commons can be forced even if -r is used. Patch by Mark Kettenis. llvm-svn: 292878
2017-01-24 11:41:20 +08:00
def no_define_common: F<"no-define-common">,
HelpText<"Do not assign space to common symbols">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def no_demangle: F<"no-demangle">,
HelpText<"Do not demangle symbol names">;
[ELF] - Implemented --no-dynamic-linker option Feature is used for producing static-linked PIE executables (https://gcc.gnu.org/ml/gcc/2015-06/msg00008.html) And was implemented in GNU ld https://gcc.gnu.org/ml/gcc/2015-08/msg00099.html I also found it in linux kernel build system, though I think that x86/x64 bootloader does not really rely on it. Seems it used for PPC though. Differential revision: https://reviews.llvm.org/D30258 llvm-svn: 296097
2017-02-24 16:26:18 +08:00
def no_dynamic_linker: F<"no-dynamic-linker">,
HelpText<"Inhibit output of .interp section">;
Add -no-{export-dynamic,fatal-warnings}. llvm-svn: 292048
2017-01-15 11:38:55 +08:00
def no_export_dynamic: F<"no-export-dynamic">;
def no_fatal_warnings: F<"no-fatal-warnings">;
[ELF] Add support for -no-gc-sections flag This flag is supported by both BFD ld and gold and is occasionally used to negate the effect of -gc-sections flag. Differential Revision: https://reviews.llvm.org/D24270 llvm-svn: 280729
2016-09-07 02:28:49 +08:00
def no_gc_sections: F<"no-gc-sections">,
HelpText<"Disable garbage collection of unused sections">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def no_gnu_unique: F<"no-gnu-unique">,
HelpText<"Disable STB_GNU_UNIQUE symbol binding">;
Add -no-threads option that negates the effect of -threads. llvm-svn: 287072
2016-11-16 09:39:50 +08:00
def no_threads: F<"no-threads">,
HelpText<"Do not run the linker multi-threaded">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def no_whole_archive: F<"no-whole-archive">,
HelpText<"Restores the default behavior of loading archive members">;
def noinhibit_exec: F<"noinhibit-exec">,
HelpText<"Retain the executable output file whenever it is still usable">;
[ELF2] Handle -m option Parse and apply emulation given with -m option. Check input files to match ELF type and machine architecture provided with -m. Differential Revision: http://reviews.llvm.org/D13055 llvm-svn: 249529
2015-10-07 17:13:03 +08:00
[ELF] - Add support for -nopie This is https://llvm.org/bugs/show_bug.cgi?id=30696, Differential revision: https://reviews.llvm.org/D25676 llvm-svn: 284388
2016-10-17 22:42:11 +08:00
def nopie: F<"nopie">, HelpText<"Do not create a position independent executable">;
[ELF] - Implemented -no-rosegment. --no-rosegment: Do not put read-only non-executable sections in their own segment Differential revision: https://reviews.llvm.org/D26889 llvm-svn: 288020
2016-11-28 18:05:20 +08:00
def no_rosegment: F<"no-rosegment">, HelpText<"Do not put read-only non-executable sections in their own segment">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def no_undefined: F<"no-undefined">,
HelpText<"Report unresolved symbols even if the linker is creating a shared library">;
[ELF2] Implement --no-undefined flag. llvm-svn: 249064
2015-10-02 04:14:45 +08:00
[ELF] - Implemented --no-undefined-version flag Option checks for cases where a version script explicitly lists a symbol, but the symbol is not defined and errors out such cases if any. Differential revision: http://reviews.llvm.org/D21745 llvm-svn: 273998
2016-06-28 16:07:26 +08:00
def no_undefined_version: F<"no-undefined-version">,
HelpText<"Report version scripts that refer undefined symbols">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
ELF2: Tidy up Options.td. Fix indentation and sort options alphabetically. llvm-svn: 248969
2015-10-01 08:33:02 +08:00
HelpText<"Path to file to write output">;
Add support for -L and -l command line switches. Patch by Igor Kudrin! llvm-svn: 248708
2015-09-28 20:52:21 +08:00
[ELF] - Implemented --oformat binary option. -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
2016-08-25 17:05:47 +08:00
def oformat: Separate<["--"], "oformat">, MetaVarName<"<format>">,
HelpText<"Specify the binary format for the output object file">;
Removed trailing whitespace. NFC. llvm-svn: 279729
2016-08-25 18:39:04 +08:00
Options such as -omagic or -opt-remarks-* should be interpreted as -o. Options can start with `-` or `--` unless they start with "o". Any option that starts with `-o` should be interpreted as an output file name. This is a quote from the GNU ld man page. Note -- there is one exception to this rule. Multiple letter options that start with a lower case 'o' can only be preceded by two dashes. This is to reduce confusion with the -o option. So for example -omagic sets the output file name to magic whereas --omagic sets the NMAGIC flag on the output. We didn't handle that properly before. llvm-svn: 297508
2017-03-11 05:22:28 +08:00
def omagic: Flag<["--"], "omagic">, MetaVarName<"<magic>">,
[ELF] - Implemented -N (-omagic) command line option. -N (-omagic) Set the text and data sections to be readable and writable. Also, do not page-align the data segment. Differential revision: https://reviews.llvm.org/D26888 llvm-svn: 288123
2016-11-29 17:43:51 +08:00
HelpText<"Set the text and data sections to be readable and writable">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def pie: F<"pie">, HelpText<"Create a position independent executable">;
[ELF] - Implemented --print-gc-sections command line argument. List all sections removed by garbage collection. This option is only effective if garbage collection has been enabled via the `--gc-sections' option. Differential revision: http://reviews.llvm.org/D15327 llvm-svn: 255235
2015-12-10 17:12:18 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def print_gc_sections: F<"print-gc-sections">,
HelpText<"List removed unused sections">;
Add -print-map and -M options. llvm-svn: 292046
2017-01-15 10:52:34 +08:00
def print_map: F<"print-map">,
HelpText<"Print a link map to the standard output">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def reproduce: S<"reproduce">,
[ELF] Introduce --reproduce flag. --reproduce dumps the object files in a directory chosen (preserving the file system layout) and the linker invocation so that people can create an archive and upload for debugging. Differential Revision: http://reviews.llvm.org/D19494 llvm-svn: 267497
2016-04-26 08:22:24 +08:00
HelpText<"Dump linker invocation and input files for debugging">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def rpath: S<"rpath">, HelpText<"Add a DT_RUNPATH to the output">;
def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
[ELF] - Implemented --retain-symbols-file option --retain-symbols-file=filename Retain only the symbols listed in the file filename, discarding all others. filename is simply a flat file, with one symbol name per line. This option is especially useful in environments (such as VxWorks) where a large global symbol table is accumulated gradually, to conserve run-time memory. Note: though documentation says "--retain-symbols-file does not discard undefined symbols, or symbols needed for relocations.", both bfd and gold do that, and this patch too, like testcase show. Differential revision: https://reviews.llvm.org/D27716 llvm-svn: 290122
2016-12-20 02:00:52 +08:00
def retain_symbols_file: J<"retain-symbols-file=">, MetaVarName<"<file>">,
HelpText<"Retain only the symbols listed in the file">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def script: S<"script">, HelpText<"Read linker script">;
Add support for -L and -l command line switches. Patch by Igor Kudrin! llvm-svn: 248708
2015-09-28 20:52:21 +08:00
[ELF] - Implemented --section-start, -Ttext, -Tdata, -Tbss options. --section-start=sectionname=org Locate a section in the output file at the absolute address given by org. You may use this option as many times as necessary to locate multiple sections in the command line. org must be a single hexadecimal integer; for compatibility with other linkers, you may omit the leading `0x' usually associated with hexadecimal values. Note: there should be no white space between sectionname, the equals sign (“<=>”), and org. -Tbss=org -Tdata=org -Ttext=org Same as --section-start, with .bss, .data or .text as the sectionname. Differential revision: https://reviews.llvm.org/D24294 llvm-svn: 281458
2016-09-14 21:07:13 +08:00
def section_start: S<"section-start">, MetaVarName<"<address>">,
HelpText<"Set address of section">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def shared: F<"shared">, HelpText<"Build a shared object">;
ELF2: Print an error message for --relocatable. llvm-svn: 252923
2015-11-13 02:54:15 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def soname: J<"soname=">, HelpText<"Set DT_SONAME">;
[ELF2] Implement -T/--script. This one tests more carefully SEARCH_DIR() as an added bonus. Differential Revision: http://reviews.llvm.org/D13626 llvm-svn: 249969
2015-10-11 11:53:36 +08:00
[ELF] - Implemented --sort-section cmd line option and SORT_NONE script command. This fixes Bug 30385 - SORT_NONE not implemented, `SORT_NONE' disables section sorting by ignoring the command line section sorting option. That is why this patch also implements --sort-section option. Description of sorting rules available at https://sourceware.org/binutils/docs/ld/Input-Section-Wildcards.html Differential revision: https://reviews.llvm.org/D24604 llvm-svn: 281771
2016-09-17 04:21:55 +08:00
def sort_section: S<"sort-section">, HelpText<"Specifies sections sorting rule when linkerscript is used">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def start_lib: F<"start-lib">,
HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;
[ELF2] Add --sysroot command line switch Reviewers: rafael, ruiu Subscribers: llvm-commits Projects: #lld Differential Revision: http://reviews.llvm.org/D13209 llvm-svn: 248715
2015-09-28 23:01:59 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def strip_all: F<"strip-all">, HelpText<"Strip all symbols">;
ELF2: Add -soname option. llvm-svn: 249058
2015-10-02 03:36:04 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
ELF: Add --strip-debug option. If --strip-debug option is given, then all sections whose names start with ".debug" are removed from output. llvm-svn: 265722
2016-04-08 05:04:51 +08:00
[ELF] - Implemented --symbol-ordering-file option. Patch allows to pass a symbols file to linker. LLD will map symbols to sections and sort sections in output according to symbol ordering file. That can help to reduce the startup time and/or amount of pagefaults during startup. Also, interesting benchmark result was produced by Rafael Espíndola. After applying the symbols file for clang he timed compiling X86MCTargetDesc.ii to an object file. The page faults went from just 56,988 to 56,946 since most faults are not in the binary. Running time went from 4.403053515 to 4.178112244. The speedup seems to be because of better cache locality. Differential revision: https://reviews.llvm.org/D26130 llvm-svn: 286440
2016-11-10 17:05:20 +08:00
def symbol_ordering_file: S<"symbol-ordering-file">,
HelpText<"Layout sections in the order specified by symbol file">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def sysroot: J<"sysroot=">, HelpText<"Set the system root">;
ELF2: Tidy up Options.td. Fix indentation and sort options alphabetically. llvm-svn: 248969
2015-10-01 08:33:02 +08:00
[ELF/ARM] Add support for R_ARM_TARGET1 relocation. Differential Revision: https://reviews.llvm.org/D22990 llvm-svn: 277369
2016-08-02 03:28:13 +08:00
def target1_rel: F<"target1-rel">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_REL32">;
def target1_abs: F<"target1-abs">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_ABS32">;
Remove '.' from a help message. llvm-svn: 287692
2016-11-23 04:15:35 +08:00
def target2: J<"target2=">, MetaVarName<"<type>">, HelpText<"Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel">;
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
Add -no-threads option that negates the effect of -threads. llvm-svn: 287072
2016-11-16 09:39:50 +08:00
def threads: F<"threads">, HelpText<"Run the linker multi-threaded">;
[ELF, PR27091] - Implemented -t/--trace option -t/--trace Print the names of the input files as ld processes them. This fixes https://llvm.org/bugs/show_bug.cgi?id=27091. Differential revision: http://reviews.llvm.org/D18517 llvm-svn: 264708
2016-03-29 16:45:40 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def trace: F<"trace">, HelpText<"Print the names of the input files">;
Accept `-trace-symbol foo` as well as `-trace-symbol=foo`. llvm-svn: 293854
2017-02-02 10:21:47 +08:00
def trace_symbol : S<"trace-symbol">, HelpText<"Trace references to symbols">;
Implement --trace-symbol=symbol option. Patch by Shridhar Joshi. This option provides names of all the link time modules which define and reference symbols requested by user. This helps to speed up application development by detecting references causing undefined symbols. It also helps in detecting symbols being resolved to wrong (unintended) definitions in case of applications containing multiple definitions for same symbols with different types, bindings. Implements PR28226. llvm-svn: 273536
2016-06-23 15:00:17 +08:00
Define '-undefined foo' as an alias to '-undefined=foo'. llvm-svn: 280985
2016-09-09 04:35:29 +08:00
def undefined: S<"undefined">,
[ELF2] Add --undefined option Add symbol specified with -u as undefined which may cause additional object files from archives to be linked into the resulting binary. Differential Revision: http://reviews.llvm.org/D13345 llvm-svn: 249295
2015-10-05 17:43:57 +08:00
HelpText<"Force undefined symbol during linking">;
[ELF] - Added support for --unresolved-symbols option. Option has next description (http://linux.die.net/man/1/ld): "--unresolved-symbols=method Determine how to handle unresolved symbols. There are four possible values for method according to documentation: ignore-all: Do not report any unresolved symbols. report-all: Report all unresolved symbols. This is the default. ignore-in-object-files: Report unresolved symbols that are contained in shared libraries, but ignore them if they come from regular object files. ignore-in-shared-libs: Report unresolved symbols that come from regular object files, but ignore them if they come from shared libraries." Since report-all is default and we traditionally do not report about undefined symbols in lld, report-all does not report about undefines from DSO. ignore-in-object-files also does not do that. Handling of that option differs from what gnu linkers do. Option works in next way in lld: ignore-all: Do not report any unresolved symbols. report-all: Report all unresolved symbols except symbols from DSOs. This is the default. ignore-in-object-files: The same as ignore-all. gnore-in-shared-libs: The same as report-all. This is PR24524. Differential revision: http://reviews.llvm.org/D21794 llvm-svn: 274123
2016-06-29 20:35:04 +08:00
def unresolved_symbols: J<"unresolved-symbols=">,
HelpText<"Determine how to handle unresolved symbols">;
[ELF] Introduce a flag to parse response files according to windows rules. Differential Revision: http://reviews.llvm/org/D22015 llvm-svn: 274684
2016-07-07 05:24:34 +08:00
def rsp_quoting: J<"rsp-quoting=">,
HelpText<"Quoting style for response files. Values supported: windows|posix">;
[ELF] - Exit on --version call. GNU linkers disagree here. Though both -version and -v are mentioned in help to print the version information, GNU ld just normally exits, while gold can continue linking. We are compatible with ld.bfd here. This fixes PR31057. Differential revision: https://reviews.llvm.org/D26865 llvm-svn: 287448
2016-11-20 02:14:24 +08:00
def v: Flag<["-"], "v">, HelpText<"Display the version number">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def verbose: F<"verbose">, HelpText<"Verbose mode">;
[ELF] - Exit on --version call. GNU linkers disagree here. Though both -version and -v are mentioned in help to print the version information, GNU ld just normally exits, while gold can continue linking. We are compatible with ld.bfd here. This fixes PR31057. Differential revision: https://reviews.llvm.org/D26865 llvm-svn: 287448
2016-11-20 02:14:24 +08:00
def version: F<"version">, HelpText<"Display the version number and exit">;
ELF: Add --version option. llvm-svn: 262167
2016-02-28 11:18:07 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def version_script: S<"version-script">,
ELF: Implement basic support for --version-script. This patch only implements support for version scripts of the form: { [ global: symbol1; symbol2; [...]; symbolN; ] local: *; }; No wildcards are supported, other than for the local entry. Symbol versioning is also not supported. It works by introducing a new Symbol flag which tracks whether a symbol appears in the global section of a version script. This patch also simplifies the logic in SymbolBody::isPreemptible(), and teaches it to handle the case where symbols with default visibility in DSOs do not appear in the dynamic symbol table because of a version script. Fixes PR27482. Differential Revision: http://reviews.llvm.org/D19430 llvm-svn: 267208
2016-04-23 04:21:26 +08:00
HelpText<"Read a version script">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def warn_common: F<"warn-common">,
HelpText<"Warn about duplicate common symbols">;
[ELF] Add warn-unresolved-symbols/error-unresolved-symbols options Patch by Dmitry Mikulin. PR: 31735 Differential Revision: https://reviews.llvm.org/D29150 llvm-svn: 293139
2017-01-26 10:19:20 +08:00
def warn_undef: F<"warn-unresolved-symbols">,
HelpText<"Report unresolved symbols as warnings">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def whole_archive: F<"whole-archive">,
HelpText<"Force load of all members in a static library">;
[ELF2] Add --[no-]whole-archive command line switches Summary: If --whole-archive is used, all symbols from the following archives are added to the output. --no-whole-archive restores default behavior. These switches can be used multiple times. NB. We have to keep an ArchiveFile instance within SymbolTable even if --whole-archive mode is active since it can be a thin archive which contains just names of external files. In that case actual memory buffers for the archive members will be stored within the File member of ArchiveFile class. Reviewers: rafael, ruiu Subscribers: grimar, llvm-commits Projects: #lld Differential Revision: http://reviews.llvm.org/D13286 llvm-svn: 249045
2015-10-02 02:02:21 +08:00
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def wrap: S<"wrap">, MetaVarName<"<symbol>">,
ELF: Implement --wrap. In this patch, all symbols are resolved normally and then wrap options are applied. Renaming is implemented by mutating `Body` pointers of Symbols. (As a result, Symtab.find(SymbolName)->getName() may return a string that's different from SymbolName, but that is by design. I designed the symbol and the symbol table to allow this kind of operations.) http://reviews.llvm.org/D15896 llvm-svn: 257075
2016-01-08 01:20:07 +08:00
HelpText<"Use wrapper functions for symbol">;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
[ELF2] -z now option implemented When generating an executable or shared library, mark it to tell the dynamic linker to resolve all symbols when the program is started, or when the shared library is linked to using dlopen, instead of deferring function call resolution to the point when the function is first called. Differential Revision: http://reviews.llvm.org/D13468 llvm-svn: 249551
2015-10-07 23:00:21 +08:00
HelpText<"Linker option extensions">;
ELF2: Tidy up Options.td. Fix indentation and sort options alphabetically. llvm-svn: 248969
2015-10-01 08:33:02 +08:00
// Aliases
Reverted r286451 "[ELF] - Allow separate form for -f (alias for -auxiliary)." Though the patch was technically correct, the only FreeBSD port (noticed atm) that tried using it was www/mod_jk. And it seems just passed gcc option to linker by mistake: "-Wl,-L-L/usr/local/lib -Wl,-rpath,/usr/local/lib -Wl,-fstack-protector -Wl,-fstack-protector -o mod_jk.la " Given that it is an easy mistake to make, reverting for now. llvm-svn: 286458
2016-11-10 22:48:39 +08:00
def alias_auxiliary: Separate<["-"], "f">, Alias<auxiliary>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_Bdynamic_call_shared: F<"call_shared">, Alias<Bdynamic>;
def alias_Bdynamic_dy: F<"dy">, Alias<Bdynamic>;
def alias_Bstatic_dn: F<"dn">, Alias<Bstatic>;
def alias_Bstatic_non_shared: F<"non_shared">, Alias<Bstatic>;
def alias_Bstatic_static: F<"static">, Alias<Bstatic>;
def alias_L__library_path: J<"library-path=">, Alias<L>;
Do not allocate space for common symbols with -r Currently ld.lld -r allocates space for common symbols, whereas ld.bfd -r doesn't. As a result the OpenBSD makefile bits for creating libraries fail as they use ld -X -r to strip local symbols, which results in duplicate symbol errors because space for the common symbols has been allocated. The diff also implements the --define-commons option such that allocation of commons can be forced even if -r is used. Patch by Mark Kettenis. llvm-svn: 292878
2017-01-24 11:41:20 +08:00
def alias_define_common_d: Flag<["-"], "d">, Alias<define_common>;
def alias_define_common_dc: F<"dc">, Alias<define_common>;
def alias_define_common_dp: F<"dp">, Alias<define_common>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_discard_all_x: Flag<["-"], "x">, Alias<discard_all>;
def alias_discard_locals_X: Flag<["-"], "X">, Alias<discard_locals>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_dynamic_list: J<"dynamic-list=">, Alias<dynamic_list>;
Recommit r294464 "[ELF] - Added partial support for --emit-relocs (no --gc-section case, no /DISCARD/ support) #3" with temporarily file name fix in testcase. Original commit message: -q, --emit-relocs - Generate relocations in output Simplest implementation: * no GC case, * no "/DISCARD/" linkerscript command support. This patch is extracted from D28612 / D29636, Relative to PR31579. Differential revision: https://reviews.llvm.org/D29663 llvm-svn: 294469
2017-02-09 00:18:10 +08:00
def alias_emit_relocs: Flag<["-"], "q">, Alias<emit_relocs>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_entry_e: JoinedOrSeparate<["-"], "e">, Alias<entry>;
[ELF] Support --entry= option variant. Update tests while I'm there. llvm-svn: 274524
2016-07-05 05:50:50 +08:00
def alias_entry_entry: J<"entry=">, Alias<entry>;
Limit default maximum number of errors to 20. This is in the context of https://llvm.org/bugs/show_bug.cgi?id=31109. When LLD prints out errors for relocations, it tends to print out extremely large number of errors (like millions) because it would print out one error per relocation. This patch makes LLD bail out if it prints out more than 20 errors. You can configure the limitation using -error-limit argument. -error-limit=0 means no limit. I chose the flag name because Clang has the same feature as -ferror-limit. "f" doesn't make sense to us, so I omitted it. Differential Revision: https://reviews.llvm.org/D26981 llvm-svn: 287789
2016-11-24 02:15:37 +08:00
def alias_error_limit: J<"error-limit=">, Alias<error_limit>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_export_dynamic_E: Flag<["-"], "E">, Alias<export_dynamic>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_export_dynamic_symbol: J<"export-dynamic-symbol=">,
Alias<export_dynamic_symbol>;
def alias_fini_fini: J<"fini=">, Alias<fini>;
[ELF] Add support for -b binary Implemented by building an ELF file in memory. elf, default, and binary match gold behavior. Differential Revision: https://reviews.llvm.org/D24060 llvm-svn: 281108
2016-09-10 06:08:04 +08:00
def alias_format_b: S<"b">, Alias<format>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_hash_style_hash_style: J<"hash-style=">, Alias<hash_style>;
def alias_init_init: J<"init=">, Alias<init>;
def alias_l__library: J<"library=">, Alias<l>;
Implement -Map. The format is not exactly the same as the one in bfd since bfd always follows a linker script and prints it along. llvm-svn: 291958
2017-01-14 05:05:46 +08:00
def alias_Map_eq: J<"Map=">, Alias<Map>;
[ELF] - Implemented -N (-omagic) command line option. -N (-omagic) Set the text and data sections to be readable and writable. Also, do not page-align the data segment. Differential revision: https://reviews.llvm.org/D26888 llvm-svn: 288123
2016-11-29 17:43:51 +08:00
def alias_omagic: Flag<["-"], "N">, Alias<omagic>;
Fix -output option. Usually, options that are longer than one character can be preceded either by "-" or "--", but options starting with "o" are exceptions because they conflict with "-o" option. They have to be preceded by "--". llvm-svn: 281004
2016-09-09 08:25:56 +08:00
def alias_o_output: Joined<["--"], "output=">, Alias<o>;
def alias_o_output2 : Separate<["--"], "output">, Alias<o>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_pie_pic_executable: F<"pic-executable">, Alias<pie>;
Add -print-map and -M options. llvm-svn: 292046
2017-01-15 10:52:34 +08:00
def alias_print_map_M: Flag<["-"], "M">, Alias<print_map>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_relocatable_r: Flag<["-"], "r">, Alias<relocatable>;
[ELF] - Implemented --retain-symbols-file option --retain-symbols-file=filename Retain only the symbols listed in the file filename, discarding all others. filename is simply a flat file, with one symbol name per line. This option is especially useful in environments (such as VxWorks) where a large global symbol table is accumulated gradually, to conserve run-time memory. Note: though documentation says "--retain-symbols-file does not discard undefined symbols, or symbols needed for relocations.", both bfd and gold do that, and this patch too, like testcase show. Differential revision: https://reviews.llvm.org/D27716 llvm-svn: 290122
2016-12-20 02:00:52 +08:00
def alias_retain_symbols_file: S<"retain-symbols-file">, Alias<retain_symbols_file>;
[ELF] - Add separate form for -R alias. During link of devel/chrpath (FreeBSD port), found next issue: /usr/bin/ld: error: unclosed comment in a linker script /usr/bin/ld: error: line 1: unknown directive: � /usr/bin/ld: error: �� Problem was not obvious and the reason was that we did not accept the separate form of -R. While invocation line contained it: cc -Wl,-R /usr/local/lib -o prog prog.c CPIO file produced contained /usr/local/lib file. Which looks because of reasons above contained inside the content of whole lib folder, and it then was passed as an input and proccessed as linker script. llvm-svn: 286378
2016-11-10 00:38:15 +08:00
def alias_rpath_R: JoinedOrSeparate<["-"], "R">, Alias<rpath>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_rpath_rpath: J<"rpath=">, Alias<rpath>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_script_T: JoinedOrSeparate<["-"], "T">, Alias<script>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_shared_Bshareable: F<"Bshareable">, Alias<shared>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_soname_h: JoinedOrSeparate<["-"], "h">, Alias<soname>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_soname_soname: S<"soname">, Alias<soname>;
[ELF] - Accept --sort-section=xxx command form. --sort-section=xxx is the same as --sort-section xxx, was found in one of FreeBSD ports. llvm-svn: 289938
2016-12-16 19:59:52 +08:00
def alias_sort_section: J<"sort-section=">, Alias<sort_section>;
Accept -script=<file> in addition to -script <file>. Fixes PR31126. llvm-svn: 287711
2016-11-23 06:54:03 +08:00
def alias_script: J<"script=">, Alias<script>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_strip_all: Flag<["-"], "s">, Alias<strip_all>;
def alias_strip_debug_S: Flag<["-"], "S">, Alias<strip_debug>;
[ELF] - Allow "-Ttext xxx", "-Tbss xxx", "-Tdata bss" commandline. So patch just defines an alias for -Txxx=YYY forms, this is consistent with ld and should fix PR30814. llvm-svn: 285824
2016-11-03 00:06:00 +08:00
def alias_Tbss: J<"Tbss=">, Alias<Tbss>;
def alias_Tdata: J<"Tdata=">, Alias<Tdata>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_trace: Flag<["-"], "t">, Alias<trace>;
Accept `-trace-symbol foo` as well as `-trace-symbol=foo`. llvm-svn: 293854
2017-02-02 10:21:47 +08:00
def trace_trace_symbol_eq : J<"trace-symbol=">, Alias<trace_symbol>;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def alias_trace_symbol_y : JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>;
[ELF] - Allow "-Ttext xxx", "-Tbss xxx", "-Tdata bss" commandline. So patch just defines an alias for -Txxx=YYY forms, this is consistent with ld and should fix PR30814. llvm-svn: 285824
2016-11-03 00:06:00 +08:00
def alias_Ttext: J<"Ttext=">, Alias<Ttext>;
[ELF] - Make LLD accept Ttext-segment X/Ttext-segment=X aliases for -Ttext. It os used in work/emulators/qemu-user-static port. Which tries to use -Ttext-segment and then: # In case ld does not support -Ttext-segment, edit the default linker # script via sed to set the .text start addr. This is needed on FreeBSD # at least. <here it calls -verbose to extract and edit default bfd linker script.> Actually now we are do not fully support -Ttext properly (see D27613), but we also seems never will provide anything close to default script, like bfd do, so at least this patch introduces proper alias handling. llvm-svn: 289827
2016-12-16 00:12:34 +08:00
def alias_Ttext_segment: S<"Ttext-segment">, Alias<Ttext>;
def alias_Ttext_segment_eq: J<"Ttext-segment=">, Alias<Ttext>;
Define '-undefined foo' as an alias to '-undefined=foo'. llvm-svn: 280985
2016-09-09 04:35:29 +08:00
def alias_undefined_eq: J<"undefined=">, Alias<undefined>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_undefined_u: JoinedOrSeparate<["-"], "u">, Alias<undefined>;
Define -v and -V as aliases to --version. This is for GNU compatibility. llvm-svn: 273847
2016-06-27 15:35:00 +08:00
def alias_version_V: Flag<["-"], "V">, Alias<version>;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_wrap_wrap: J<"wrap=">, Alias<wrap>;
ELF2: Ignore some command line argument that clang passes to the linker. llvm-svn: 248967
2015-10-01 08:24:54 +08:00
ELF2: Make comment less opinionated. llvm-svn: 253058
2015-11-14 02:56:07 +08:00
// Our symbol resolution algorithm handles symbols in archive files differently
ELF2: Add comments and reorganize option list a bit. llvm-svn: 252978
2015-11-13 08:26:12 +08:00
// than traditional linkers, so we don't need --start-group and --end-group.
ELF2: Make comment less opinionated. llvm-svn: 253058
2015-11-14 02:56:07 +08:00
// These options are recongized for compatibility but ignored.
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def end_group: F<"end-group">;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def end_group_paren: Flag<["-"], ")">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def start_group: F<"start-group">;
Do not allow "--" with single-letter options. In general, we accept both -foo and --foo as command line options, but if an option is a single letter option, we don't want to allow double dashes because GNU linkers don't accept such combination. llvm-svn: 274219
2016-06-30 16:43:23 +08:00
def start_group_paren: Flag<["-"], "(">;
ELF2: Add comments and reorganize option list a bit. llvm-svn: 252978
2015-11-13 08:26:12 +08:00
[LTO] Ignore -plugin/-plugin-opt options. This is required to get 'clang -flto' to work transparently with lld. Please refer to the short comment in the code for a more detailed explanation. llvm-svn: 263862
2016-03-19 08:40:09 +08:00
// Ignore LTO plugin-related options.
// clang -flto passes -plugin and -plugin-opt to the linker. This is required
// for ld.gold and ld.bfd to get LTO working. But it's not for lld which doesn't
// rely on a plugin. Instead of detecting which linker is used on clang side we
// just ignore the option on lld side as it's easier. In fact, the linker could
// be called 'ld' and understanding which linker is used would require parsing of
// --version output.
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def plugin: S<"plugin">;
def plugin_eq: J<"plugin=">;
def plugin_opt: S<"plugin-opt">;
def plugin_opt_eq: J<"plugin-opt=">;
[LTO] Ignore -plugin/-plugin-opt options. This is required to get 'clang -flto' to work transparently with lld. Please refer to the short comment in the code for a more detailed explanation. llvm-svn: 263862
2016-03-19 08:40:09 +08:00
ELF2: Add comments and reorganize option list a bit. llvm-svn: 252978
2015-11-13 08:26:12 +08:00
// Options listed below are silently ignored for now for compatibility.
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def allow_shlib_undefined: F<"allow-shlib-undefined">;
[ELF] - Ignore -Map,-M and --cref options. -M, --print-map Write map file on standard output -Map MAPFILENAME Write map file --cref Output cross reference table This is relative to PR30973. Next FreeBSD ports were atm failing because of lack of -Map, -M and --cref: sysutils/openipmi emulators/adamem devel/jwasm net/pimd devel/k8048 textproc/libcrm114 lang/micropython net/mrouted print/openprinting After this patch all of them can be link fine. llvm-svn: 286831
2016-11-14 22:45:11 +08:00
def cref: Flag<["--"], "cref">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def detect_odr_violations: F<"detect-odr-violations">;
[ELF] Ignore -g option for compatibility. Also ld.bfd and ld.gold ignore this options. I hit this one in the wild, and just ignoring it's trivial, so, let's do it. llvm-svn: 277531
2016-08-03 06:14:00 +08:00
def g: Flag<["-"], "g">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def no_add_needed: F<"no-add-needed">;
def no_allow_shlib_undefined: F<"no-allow-shlib-undefined">;
def no_copy_dt_needed_entries: F<"no-copy-dt-needed-entries">,
Alias<no_add_needed>;
def no_mmap_output_file: F<"no-mmap-output-file">;
def no_warn_common: F<"no-warn-common">;
def no_warn_mismatch: F<"no-warn-mismatch">;
def rpath_link: S<"rpath-link">;
def rpath_link_eq: J<"rpath-link=">;
Ignore --sort-common. Because we always sort common symbols, we can ignore the option. llvm-svn: 273842
2016-06-27 10:43:27 +08:00
def sort_common: F<"sort-common">;
[ELF] - Ignore -stats command line option. llvm-svn: 286348
2016-11-09 16:59:59 +08:00
def stats: F<"stats">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def warn_execstack: F<"warn-execstack">;
def warn_shared_textrel: F<"warn-shared-textrel">;
ELF: ignore -EB and -EL options Differential Revision: https://reviews.llvm.org/D23124 llvm-svn: 279058
2016-08-18 20:44:45 +08:00
def EB : F<"EB">;
def EL : F<"EL">;
ELF: ignored option -G may be joined with its argument llvm-svn: 278819
2016-08-17 00:26:46 +08:00
def G: JoinedOrSeparate<["-"], "G">;
ELF: Add -Qy as ignored option GCC passes it by default on powerpc64 on FreeBSD. GNU ld claims "this option is ignored for SVR4 compatibility", so we can ignore it too. Differential Revision: https://reviews.llvm.org/D24313 llvm-svn: 280864
2016-09-08 05:10:25 +08:00
def Qy : F<"Qy">;
Add --version-script= alias for --version-script llvm-svn: 255249
2015-12-10 22:08:45 +08:00
// Aliases for ignored options
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def alias_version_script_version_script: J<"version-script=">,
Alias<version_script>;
[lto] Add beginning of -save-temps option. Summary: This is useful for debugging issues with LTO. The option follows the analogous option in ld64 and the gold plugin (per Rafael's suggestion). For starters, this only dumps the combined bitcode file. In a future patch I will add dumping for the .o file. The naming of the output follows ld64's convention which is slightly more consistent IMO (consistent `.lto.<extension>` for all the files). Reviewers: rafael, ruiu Subscribers: joker.eph, Bigcheese, llvm-commits Differential Revision: http://reviews.llvm.org/D18006 llvm-svn: 263055
2016-03-10 04:01:08 +08:00
[LTO] Implement parallel Codegen for LTO using splitCodeGen. Parallelism level can be chosen using the new --lto-jobs=K option where K is the number of threads used for CodeGen. It currently defaults to 1. llvm-svn: 266484
2016-04-16 06:38:10 +08:00
// LTO-related options.
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def lto_aa_pipeline: J<"lto-aa-pipeline=">,
[LTO] Add --lto-aa-pipeline. Differential Revision: http://reviews.llvm.org/D20888 llvm-svn: 271605
2016-06-03 06:58:11 +08:00
HelpText<"AA pipeline to run during LTO. Used in conjunction with -lto-newpm-passes">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def lto_newpm_passes: J<"lto-newpm-passes=">,
[LTO] Add the ability to specify a subset of passes to run. Differential Revision: http://reviews.llvm.org/D20267 llvm-svn: 269605
2016-05-16 03:29:38 +08:00
HelpText<"Passes to run during LTO">;
[LTO] Split the options for ThinLTO jobs and Regular LTO partitions Differential Revision: https://reviews.llvm.org/D25452 llvm-svn: 283817
2016-10-11 07:12:14 +08:00
def lto_partitions: J<"lto-partitions=">,
HelpText<"Number of LTO codegen partitions">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def disable_verify: F<"disable-verify">;
def mllvm: S<"mllvm">;
Options such as -omagic or -opt-remarks-* should be interpreted as -o. Options can start with `-` or `--` unless they start with "o". Any option that starts with `-o` should be interpreted as an output file name. This is a quote from the GNU ld man page. Note -- there is one exception to this rule. Multiple letter options that start with a lower case 'o' can only be preceded by two dashes. This is to reduce confusion with the -o option. So for example -omagic sets the output file name to magic whereas --omagic sets the NMAGIC flag on the output. We didn't handle that properly before. llvm-svn: 297508
2017-03-11 05:22:28 +08:00
def opt_remarks_filename: Separate<["--"], "opt-remarks-filename">,
[LTO] Add support for optimization remarks. Differential Revision: https://reviews.llvm.org/D29878 llvm-svn: 294971
2017-02-14 01:49:18 +08:00
HelpText<"YAML output file for optimization remarks">;
Options such as -omagic or -opt-remarks-* should be interpreted as -o. Options can start with `-` or `--` unless they start with "o". Any option that starts with `-o` should be interpreted as an output file name. This is a quote from the GNU ld man page. Note -- there is one exception to this rule. Multiple letter options that start with a lower case 'o' can only be preceded by two dashes. This is to reduce confusion with the -o option. So for example -omagic sets the output file name to magic whereas --omagic sets the NMAGIC flag on the output. We didn't handle that properly before. llvm-svn: 297508
2017-03-11 05:22:28 +08:00
def opt_remarks_with_hotness: Flag<["--"], "opt-remarks-with-hotness">,
[LTO] Add support for optimization remarks. Differential Revision: https://reviews.llvm.org/D29878 llvm-svn: 294971
2017-02-14 01:49:18 +08:00
HelpText<"Include hotness informations in the optimization remarks file">;
Accept both single and double dashes for all options. This is a follow-up patch to r273218. GNU ld accepts both "--" and "-" for all multi-letter options except "-o". This patch makes lld compatible with that behavior. llvm-svn: 273256
2016-06-21 16:45:50 +08:00
def save_temps: F<"save-temps">;
ELF: Add ThinLTO caching support. This patch adds an option named --thinlto-cache-dir, which specifies the path to a directory in which to cache native object files for ThinLTO incremental builds. Differential Revision: https://reviews.llvm.org/D30509 llvm-svn: 296702
2017-03-02 07:00:10 +08:00
def thinlto_cache_dir: J<"thinlto-cache-dir=">,
HelpText<"Path to ThinLTO cached object file directory">;
ELF: Add cache pruning support. This patch causes us to use pruneCache() to prune the ThinLTO cache after completing LTO. A new flag --thinlto-cache-policy allows users to configure the policy. Differential Revision: https://reviews.llvm.org/D31021 llvm-svn: 298036
2017-03-17 10:24:16 +08:00
def thinlto_cache_policy: S<"thinlto-cache-policy">,
HelpText<"Pruning policy for the ThinLTO cache">;
[LTO] Split the options for ThinLTO jobs and Regular LTO partitions Differential Revision: https://reviews.llvm.org/D25452 llvm-svn: 283817
2016-10-11 07:12:14 +08:00
def thinlto_jobs: J<"thinlto-jobs=">, HelpText<"Number of ThinLTO jobs">;