Commit 92f7bd3a authored by Martin Storsjö's avatar Martin Storsjö
Browse files

[LLD] [MinGW] Implement the --file-alignment and --section-alignment options 

Differential Revision: https://reviews.llvm.org/D83720
parent 4f763b21

lld/MinGW/Driver.cpp

+4 −0
Original line number Diff line number Diff line
@@ -251,6 +251,10 @@ bool mingw::link(ArrayRef<const char *> argsArr, bool canExitEarly, 
    add("-reproduce:" + StringRef(a->getValue()));

  if (auto *a = args.getLastArg(OPT_thinlto_cache_dir))

    add("-lldltocache:" + StringRef(a->getValue()));

  if (auto *a = args.getLastArg(OPT_file_alignment))

    add("-filealign:" + StringRef(a->getValue()));

  if (auto *a = args.getLastArg(OPT_section_alignment))

    add("-align:" + StringRef(a->getValue()));



  if (auto *a = args.getLastArg(OPT_o))

    add("-out:" + StringRef(a->getValue()));

lld/MinGW/Options.td

+2 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ def exclude_all_symbols: F<"exclude-all-symbols">, 
    HelpText<"Don't automatically export any symbols">;

def export_all_symbols: F<"export-all-symbols">,

    HelpText<"Export all symbols even if a def file or dllexport attributes are used">;

defm file_alignment: Eq<"file-alignment", "Set file alignment">;

def gc_sections: F<"gc-sections">, HelpText<"Remove unused sections">;

def help: F<"help">, HelpText<"Print option help">;

def icf: J<"icf=">, HelpText<"Identical code folding">;
@@ -64,6 +65,7 @@ def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">, 
  HelpText<"Path to file to write output">;

defm out_implib: Eq<"out-implib", "Import library name">;

defm output_def: Eq<"output-def", "Output def file">;

defm section_alignment: Eq<"section-alignment", "Set section alignment">;

def shared: F<"shared">, HelpText<"Build a shared object">;

defm subs: Eq<"subsystem", "Specify subsystem">;

def stack: S<"stack">;

lld/test/MinGW/driver.test

+12 −0
Original line number Diff line number Diff line
@@ -244,3 +244,15 @@ DISABLE_RUNTIME_PSEUDO_RELOC: -runtime-pseudo-reloc:no 


RUN: ld.lld -### foo.o -m i386pe --thinlto-cache-dir=_foo | FileCheck -check-prefix=THINLTO_CACHEDIR %s

THINLTO_CACHEDIR: -lldltocache:_foo



RUN: ld.lld -### -m i386pep foo.o --file-alignment 0x1000 | FileCheck -check-prefix FILEALIGN %s

RUN: ld.lld -### -m i386pep foo.o -file-alignment 0x1000 | FileCheck -check-prefix FILEALIGN %s

RUN: ld.lld -### -m i386pep foo.o --file-alignment=0x1000 | FileCheck -check-prefix FILEALIGN %s

RUN: ld.lld -### -m i386pep foo.o -file-alignment=0x1000 | FileCheck -check-prefix FILEALIGN %s

FILEALIGN: -filealign:0x1000



RUN: ld.lld -### -m i386pep foo.o --section-alignment 0x2000 | FileCheck -check-prefix ALIGN %s

RUN: ld.lld -### -m i386pep foo.o -section-alignment 0x2000 | FileCheck -check-prefix ALIGN %s

RUN: ld.lld -### -m i386pep foo.o --section-alignment=0x2000 | FileCheck -check-prefix ALIGN %s

RUN: ld.lld -### -m i386pep foo.o -section-alignment=0x2000 | FileCheck -check-prefix ALIGN %s

ALIGN: -align:0x2000