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[Driver] Accept both -m <emulation> and -m<emulation> 

GNU linkers accept both variants and at least for MIPS target gcc passes
joined variant of the '-m' option.

Differential Revision: http://reviews.llvm.org/D14133

llvm-svn: 251497
This commit is contained in:
Simon Atanasyan 2015-10-28 05:13:12 +00:00
parent c6af8c606d
commit 07fe7a943f
4 changed files with 6 additions and 2 deletions
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2
lld/ELF/Options.td
View File

@ -60,7 +60,7 @@ def init : Separate<["-"], "init">, MetaVarName<"<symbol>">,
def l : JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,
HelpText<"Root name of library to use">;
def m : Separate<["-"], "m">,
def m : JoinedOrSeparate<["-"], "m">,
HelpText<"Set target emulation">;
def no_allow_shlib_undefined : Flag<["--"], "no-allow-shlib-undefined">;

2
lld/lib/Driver/GnuLdOptions.td
View File

@ -71,7 +71,7 @@ def grp_general : OptionGroup<"opts">,
def output : Separate<["-"], "o">, MetaVarName<"<path>">,
HelpText<"Path to file to write output">,
Group<grp_general>;
def m : Separate<["-"], "m">, MetaVarName<"<emulation>">,
def m : JoinedOrSeparate<["-"], "m">, MetaVarName<"<emulation>">,
HelpText<"Select target emulation">,
Group<grp_general>;
def build_id : Flag<["--"], "build-id">,

2
lld/test/elf/Mips/opt-emulation.test
View File

@ -3,6 +3,8 @@
# RUN: yaml2obj -format=elf %s > %t-obj
# RUN: lld -flavor gnu -target mipsel -m elf32ltsmip -o %t-exe %t-obj
# RUN: llvm-readobj -file-headers %t-exe | FileCheck -check-prefix=LE-O32 %s
# RUN: lld -flavor gnu -target mipsel -melf32ltsmip -o %t-exe %t-obj
# RUN: llvm-readobj -file-headers %t-exe | FileCheck -check-prefix=LE-O32 %s
# LE-O32: Class: 32-bit (0x1)
# LE-O32: DataEncoding: LittleEndian (0x1)

2
lld/test/elf2/emulation.s
View File

@ -118,6 +118,8 @@
# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux %s -o %tmipsel
# RUN: lld -flavor gnu2 -m elf32ltsmip -e _start %tmipsel -o %t2mipsel
# RUN: llvm-readobj -file-headers %t2mipsel | FileCheck --check-prefix=MIPSEL %s
# RUN: lld -flavor gnu2 -melf32ltsmip -e _start %tmipsel -o %t2mipsel
# RUN: llvm-readobj -file-headers %t2mipsel | FileCheck --check-prefix=MIPSEL %s
# RUN: lld -flavor gnu2 %tmipsel -e _start -o %t3mipsel
# RUN: llvm-readobj -file-headers %t3mipsel | FileCheck --check-prefix=MIPSEL %s
# MIPSEL: ElfHeader {