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[LLD] [MinGW] Implement --disable-reloc-section, mapped to /fixed 

Since binutils 2.36, GNU ld defaults to emitting base relocations,
and that version added the new option --disable-reloc-section to
disable it.

Differential Revision: https://reviews.llvm.org/D127478
This commit is contained in:
Martin Storsjö 2022-06-10 10:57:40 +03:00
parent b209b9e11c
commit aefa11166f
3 changed files with 17 additions and 0 deletions
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3
lld/MinGW/Driver.cpp
View File

@ -323,6 +323,9 @@ bool mingw::link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
if (args.hasFlag(OPT_disable_tsaware, OPT_tsaware, false))
add("-tsaware:no");
if (args.hasFlag(OPT_disable_reloc_section, OPT_enable_reloc_section, false))
add("-fixed");
if (args.hasFlag(OPT_no_insert_timestamp, OPT_insert_timestamp, false))
add("-timestamp:0");

7
lld/MinGW/Options.td
View File

@ -31,6 +31,11 @@ multiclass B_disable<string name, string help1, string help2> {
def disable_ # NAME: Flag<["--", "-"], "disable-" # name>, HelpText<help2>;
}
multiclass B_enable_disable<string name, string help1, string help2> {
def enable_ # NAME: Flag<["--", "-"], "enable-" # name>, HelpText<help1>;
def disable_ # NAME: Flag<["--", "-"], "disable-" # name>, HelpText<help2>;
}
def L: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
HelpText<"Add a directory to the library search path">;
defm allow_multiple_definition: B<"allow-multiple-definition",
@ -98,6 +103,8 @@ 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 reloc_section: B_enable_disable<"reloc-section",
"Enable base relocations", "Disable base relocations">;
defm section_alignment: Eq<"section-alignment", "Set section alignment">;
def shared: F<"shared">, HelpText<"Build a shared object">;
defm subs: Eq<"subsystem", "Specify subsystem">;

7
lld/test/MinGW/driver.test
View File

@ -181,6 +181,13 @@ RUN: ld.lld -### -m i386pe foo.o -disable-tsaware -tsaware 2>&1 | FileCheck -che
RUN: ld.lld -### -m i386pe foo.o --disable-tsaware --tsaware 2>&1 | FileCheck -check-prefix NO-DISABLE-TSAWARE %s
NO-DISABLE-TSAWARE-NOT: -tsaware:no
RUN: ld.lld -### -m i386pe foo.o -enable-reloc-section -disable-reloc-section 2>&1 | FileCheck -check-prefix DISABLE-RELOC-SECTION %s
RUN: ld.lld -### -m i386pe foo.o --enable-reloc-section --disable-reloc-section 2>&1 | FileCheck -check-prefix DISABLE-RELOC-SECTION %s
DISABLE-RELOC-SECTION: -fixed{{ }}
RUN: ld.lld -### -m i386pe foo.o -disable-reloc-section -enable-reloc-section 2>&1 | FileCheck -check-prefix NO-DISABLE-RELOC-SECTION %s
RUN: ld.lld -### -m i386pe foo.o --disable-reloc-section --enable-reloc-section 2>&1 | FileCheck -check-prefix NO-DISABLE-RELOC-SECTION %s
NO-DISABLE-RELOC-SECTION-NOT: -fixed
RUN: ld.lld -### -m i386pep foo.o --image-base 0x1230000 2>&1 | FileCheck -check-prefix IMAGE-BASE %s
RUN: ld.lld -### -m i386pep foo.o -image-base 0x1230000 2>&1 | FileCheck -check-prefix IMAGE-BASE %s
RUN: ld.lld -### -m i386pep foo.o --image-base=0x1230000 2>&1 | FileCheck -check-prefix IMAGE-BASE %s