preliminary MIPS32 support

[crabtw]

It currently lacks support of segmented stacks and the runtime support is buggy. For a simple hello world program, it prints string and then segfaults. I am still trying to fix the problem.

The MIPS O32 ABI implementation is translated from clang's.
https://github.com/llvm-mirror/clang/blob/master/lib/CodeGen/TargetInfo.cpp

[brson]

Wow. Very interesting
On Jan 30, 2013 8:26 AM, "Jyun-Yan You" notifications@github.com wrote:

It currently lacks support of segmented stacks and the runtime support is
buggy. For a simple hello world program, it prints string and then
segfaults. I am still trying to fix the problem.

The MIPS O32 ABI implementation is translated from clang's.

https://github.com/llvm-mirror/clang/blob/master/lib/CodeGen/TargetInfo.cpp

You can merge this Pull Request by running

git pull https://github.com/crabtw/rust mips

Or view, comment on, or merge it at:

#4692
Commit Summary

• rt: MIPS32 support
• rustc: MIPS32 support
• rustc: implement MIPS O32 ABI
• rt: fix some bugs for MIPS target
• rustc: add missing pub for back::mips::get_target_strs

File Changes

• M Makefile.in (2)
• M configure (7)
• A mk/libuv/mips/unix/linux/Makefile (354)
• A mk/libuv/mips/unix/linux/src/libuv/run-benchmarks.target.mk (122)
• A mk/libuv/mips/unix/linux/src/libuv/run-tests.target.mk (165)
• A mk/libuv/mips/unix/linux/src/libuv/uv.Makefile (6)
• A mk/libuv/mips/unix/linux/src/libuv/uv.target.mk (191)
• M mk/rt.mk (6)
• M src/libcore/cleanup.rs (7)
• M src/libcore/libc.rs (1)
• M src/libcore/os.rs (6)
• M src/libcore/path.rs (1)
• M src/libcore/sys.rs (2)
• M src/libcore/uint-template/uint.rs (1)
• A src/librustc/back/mips.rs (85)
• M src/librustc/driver/driver.rs (13)
• M src/librustc/driver/session.rs (2)
• M src/librustc/middle/trans/base.rs (8)
• A src/librustc/middle/trans/cabi_mips.rs (220)
• M src/librustc/middle/trans/common.rs (6)
• M src/librustc/middle/trans/foreign.rs (5)
• M src/librustc/rustc.rc (3)
• M src/libstd/bigint.rs (6)
• M src/libstd/net_tcp.rs (1)
• M src/libstd/uv_ll.rs (14)
• A src/rt/arch/mips/_context.S (82)
• A src/rt/arch/mips/ccall.S (29)
• A src/rt/arch/mips/context.cpp (46)
• A src/rt/arch/mips/context.h (51)
• A src/rt/arch/mips/gpr.cpp (31)
• A src/rt/arch/mips/gpr.h (33)
• A src/rt/arch/mips/record_sp.S (47)
• A src/rt/arch/mips/regs.h (18)
• M src/rt/rust_task.h (3)
• M src/rustllvm/RustWrapper.cpp (12)
• M src/rustllvm/rustllvm.def.in (7)

Patch Links:

• https://github.com/mozilla/rust/pull/4692.patch
• https://github.com/mozilla/rust/pull/4692.diff

[auroranockert]

Awesome! What OS/processor are you testing with?

[crabtw]

CPU is MIPS 34Kc and OS is Linux 2.6.36

[brson]

Sorry this is taking so long to merge. The llvm rebuild of adding a new backend will cause some disruption for developers and the bots so I'm waiting for a good moment for that. Right now I'm thinking I'll merge this weekend.

[brson]

I didn't do this last week because the tree was not green. I know, so many excuses. This weekend, perhaps? Time will tell.

[brson]

I have a rebased branch here

[brson]

Merged.