| Message ID | eac1aafa-a6d7-41c9-9ac6-b6abf69ed93b@EXCHHUB01.MIPS.com |
|---|---|
| State | New |
| Headers | show |
"Steve Ellcey " <sellcey@mips.com> writes: > I noticed that because my new mips-mti-elf target includes config/mt-sde > it uses the -Os option by default when building runtime libraries. I would > like to remove the use of -Os so that the runtime performance for the > mips-mti-elf target is improved. If users want the -Os flag they can use > the existing --enable-target-optspace configure option to get it. > > This patch creates config/mt-mti that is like mt-sde but without -Os and > changes the mips*-mti-elf* target to use that include file instead of mt-sde. > > Tested with the mips-mti-elf target. > > OK to checkin? OK with me, thanks. Just for the record, the SDE configuration is also effectively owned by MTI, so if you think the same reasoning applies there, we could change mt-sde instead. But if you want to keep SDE the way it is now then the patch is OK. Richard
diff --git a/config/mt-mti b/config/mt-mti new file mode 100644 index 0000000..85ad9e7 --- /dev/null +++ b/config/mt-mti @@ -0,0 +1,13 @@ +# We use -minterlink-mips16 so that the non-MIPS16 libraries can still be +# linked against partly-MIPS16 code. The -mcode-readable=pcrel option allows +# MIPS16 libraries to run on Harvard-style split I/D memories, so long +# as they have the D-to-I redirect for PC-relative loads. -mno-gpopt +# has two purposes: it allows libraries to be used in situations where +# $gp != our _gp, and it allows them to be built with -G8 while +# retaining link compatibility with -G0 and -G4. +# +# We do not default to -Os like mt-sde does, users who want that can configure +# with --enable-target-optspace. + +CFLAGS_FOR_TARGET += -minterlink-mips16 -mcode-readable=pcrel -mno-gpopt +CXXFLAGS_FOR_TARGET += -minterlink-mips16 -mcode-readable=pcrel -mno-gpopt diff --git a/configure.ac b/configure.ac index c346c2c..a87185a 100644 --- a/configure.ac +++ b/configure.ac @@ -2299,9 +2299,12 @@ case "${target}" in spu-*-*) target_makefile_frag="config/mt-spu" ;; - mips*-sde-elf* | mips*-mti-elf*) + mips*-sde-elf*) target_makefile_frag="config/mt-sde" ;; + mips*-mti-elf*) + target_makefile_frag="config/mt-mti" + ;; mipsisa*-*-elfoabi*) target_makefile_frag="config/mt-mips-elfoabi" ;;