From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stafford Horne Date: Wed, 7 Nov 2018 06:21:08 +0900 Subject: [OpenRISC] [PATCH v4 0/3] OpenRISC port Message-ID: <20181106212111.31800-1-shorne@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: openrisc@lists.librecores.org Hello, As you can see this is v4 of the OpenRISC port patch series, I just want to mention that there are a few things pointed out during the v3 review that I have not fixed, and do not plan before pushing upstream. These are either because I didn't feel they made the code easier to read or they were things that could wait unil after upstreaming. These include: (not changed) - libgcc !cmov 1cyc improvements suggested by Richard - gcc eliminations refactorings suggested by Segher - leaving out empty constraint strings suggested by Segher - implementing TARGET_ISNS_COST suggested by Segher Please let me know if you have concerns; now onto the patches: Changes Since v3: - Fix tabs formatting pointed out by Segher - Fix comment formatting and typos pointed out by Segher - Fix for sign/zero extention login in md file from Richard - Remove usages of ATTRIBUTE_UNUSED suggested by Segher - Remove need for init/fini, removing crti/n.S files - Add support for -static-pie in LINK_SPEC suggsted by Szabolcs Changes Since v2: - Add RTEMS patches from Joel Sherrill - Disable t-softfp-excl as suggsted by Joseph Myers - Add new architecture flags needed to run on real FPGA's found in testing * -mror - enable l.ror (rotate right) * -mshftimm - enable shift/rorate by immediate instructions - Binutils requirements are now in upstream git Changes Since v1: - Document options in invoke.texi suggested by Joseph Myers - Remove obsolete/incorrect macros suggested by Joseph Myers - Documented or1k.c functions as requested by Jeff Law - Add epilogue barriers suggested by Jeff Law - Define SPECULATION_SAFE_VALUE suggested by Jeff Law - Switch to init/fini array suggested by Richard Henderson - Define and document multilib flags to enable disable instructions only available on some CPU cores as requested on OpenRISC mailing list. Since February this year I have been working on an OpenRISC clean room rewrite. http://stffrdhrn.github.io/software/embedded/openrisc/2018/02/03/openrisc_gcc_rewrite.html As per the article, the old port had issues with some of the owners signing over FSF copyright. To get around this I discussed options with the group and in the end I opted for a clean room rewrite. The new code base has been written by me with lots of help from Richard Henderson. I trust that both of us have our FSF GCC copyright's in place. # Testing We have been running the GCC testsuite with newlib and musl libc. The results are good. See results published in a test build/release here: - https://github.com/stffrdhrn/gcc/releases/tag/or1k-9.0.0-20181106 # Building To build this requires the latest binutils upstream master i.e. 2.31.52. Also, due to removing need for `init` and `fini` it requires the latest changes on newlib master. -Stafford Stafford Horne (3): or1k: libgcc: initial support for openrisc or1k: testsuite: initial support for openrisc or1k: gcc: initial support for openrisc gcc/common/config/or1k/or1k-common.c | 41 + gcc/config.gcc | 45 + gcc/config/or1k/constraints.md | 55 + gcc/config/or1k/elf.h | 42 + gcc/config/or1k/elf.opt | 33 + gcc/config/or1k/linux.h | 45 + gcc/config/or1k/or1k-protos.h | 38 + gcc/config/or1k/or1k.c | 2183 +++++++++++++++++ gcc/config/or1k/or1k.h | 392 +++ gcc/config/or1k/or1k.md | 897 +++++++ gcc/config/or1k/or1k.opt | 67 + gcc/config/or1k/predicates.md | 84 + gcc/config/or1k/rtems.h | 30 + gcc/config/or1k/t-or1k | 22 + gcc/config/or1k/t-rtems | 3 + gcc/configure | 12 + gcc/configure.ac | 12 + gcc/doc/install.texi | 19 + gcc/doc/invoke.texi | 68 + gcc/doc/md.texi | 25 + .../gcc.c-torture/execute/20101011-1.c | 3 + gcc/testsuite/gcc.dg/20020312-2.c | 2 + gcc/testsuite/gcc.dg/attr-alloc_size-11.c | 4 +- gcc/testsuite/gcc.dg/builtin-apply2.c | 2 +- gcc/testsuite/gcc.dg/nop.h | 2 + .../torture/stackalign/builtin-apply-2.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/20040204-1.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/reassoc-33.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/reassoc-34.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/reassoc-35.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/reassoc-36.c | 2 +- gcc/testsuite/gcc.target/or1k/args-1.c | 19 + gcc/testsuite/gcc.target/or1k/args-2.c | 15 + gcc/testsuite/gcc.target/or1k/cmov-1.c | 8 + gcc/testsuite/gcc.target/or1k/cmov-2.c | 9 + gcc/testsuite/gcc.target/or1k/div-mul-1.c | 9 + gcc/testsuite/gcc.target/or1k/div-mul-2.c | 9 + gcc/testsuite/gcc.target/or1k/or1k.exp | 41 + gcc/testsuite/gcc.target/or1k/return-1.c | 10 + gcc/testsuite/gcc.target/or1k/return-2.c | 19 + gcc/testsuite/gcc.target/or1k/return-3.c | 19 + gcc/testsuite/gcc.target/or1k/return-4.c | 19 + gcc/testsuite/gcc.target/or1k/ror-1.c | 8 + gcc/testsuite/gcc.target/or1k/ror-2.c | 9 + gcc/testsuite/gcc.target/or1k/ror-3.c | 8 + gcc/testsuite/gcc.target/or1k/shftimm-1.c | 8 + gcc/testsuite/gcc.target/or1k/shftimm-2.c | 8 + gcc/testsuite/gcc.target/or1k/sibcall-1.c | 18 + gcc/testsuite/lib/target-supports.exp | 1 + libgcc/config.host | 12 + libgcc/config/or1k/lib1funcs.S | 222 ++ libgcc/config/or1k/linux-unwind.h | 87 + libgcc/config/or1k/sfp-machine.h | 54 + libgcc/config/or1k/t-or1k | 22 + 54 files changed, 4763 insertions(+), 9 deletions(-) create mode 100644 gcc/common/config/or1k/or1k-common.c create mode 100644 gcc/config/or1k/constraints.md create mode 100644 gcc/config/or1k/elf.h create mode 100644 gcc/config/or1k/elf.opt create mode 100644 gcc/config/or1k/linux.h create mode 100644 gcc/config/or1k/or1k-protos.h create mode 100644 gcc/config/or1k/or1k.c create mode 100644 gcc/config/or1k/or1k.h create mode 100644 gcc/config/or1k/or1k.md create mode 100644 gcc/config/or1k/or1k.opt create mode 100644 gcc/config/or1k/predicates.md create mode 100644 gcc/config/or1k/rtems.h create mode 100644 gcc/config/or1k/t-or1k create mode 100644 gcc/config/or1k/t-rtems create mode 100644 gcc/testsuite/gcc.target/or1k/args-1.c create mode 100644 gcc/testsuite/gcc.target/or1k/args-2.c create mode 100644 gcc/testsuite/gcc.target/or1k/cmov-1.c create mode 100644 gcc/testsuite/gcc.target/or1k/cmov-2.c create mode 100644 gcc/testsuite/gcc.target/or1k/div-mul-1.c create mode 100644 gcc/testsuite/gcc.target/or1k/div-mul-2.c create mode 100644 gcc/testsuite/gcc.target/or1k/or1k.exp create mode 100644 gcc/testsuite/gcc.target/or1k/return-1.c create mode 100644 gcc/testsuite/gcc.target/or1k/return-2.c create mode 100644 gcc/testsuite/gcc.target/or1k/return-3.c create mode 100644 gcc/testsuite/gcc.target/or1k/return-4.c create mode 100644 gcc/testsuite/gcc.target/or1k/ror-1.c create mode 100644 gcc/testsuite/gcc.target/or1k/ror-2.c create mode 100644 gcc/testsuite/gcc.target/or1k/ror-3.c create mode 100644 gcc/testsuite/gcc.target/or1k/shftimm-1.c create mode 100644 gcc/testsuite/gcc.target/or1k/shftimm-2.c create mode 100644 gcc/testsuite/gcc.target/or1k/sibcall-1.c create mode 100644 libgcc/config/or1k/lib1funcs.S create mode 100644 libgcc/config/or1k/linux-unwind.h create mode 100644 libgcc/config/or1k/sfp-machine.h create mode 100644 libgcc/config/or1k/t-or1k -- 2.17.2