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2011-12-18rt: Add lots of documentation to __morestackBrian Anderson-42/+139
2011-12-17rt: Use a DWARF CFI scheme that works on mac in __morestackBrian Anderson-24/+6
2011-12-16rt: Make 32-bit morestack compatible with fastccBrian Anderson-9/+18
2011-12-16rt: Fix saved address of unwinding %rsp in __morestackBrian Anderson-1/+1
I haven't thought too deeply about this, but I think I was telling the unwinder to use the stack pointer for the wrong frame when unwinding. Not sure how that could have worked at all, but this results in the correct alignment for cleanups.
2011-12-16rt: Fix alignment of the call to upcall_del_stack in __morestackBrian Anderson-2/+7
2011-12-16rt: Insert stack alignment checks into upcallsBrian Anderson-1/+21
2011-12-13rt: Add a FIXME to 32-bit __morestack about trashing %eaxBrian Anderson-1/+2
2011-12-13rt: Use %ecx instead of %eax during the second half of __morestackBrian Anderson-3/+5
If Rust code made use of return values then using %eax here would clobber it
2011-12-13rt: Don't clobber fastcc argument registers in __morestackBrian Anderson-12/+15
2011-12-12rt: Remove some duplicated code from 64-bit __morestackBrian Anderson-12/+0
2011-12-12rt: Make unwinding through __morestack work on macBrian Anderson-3/+1
Had to bump the min stack size in some of the tests from 256 bytes to 1024 bytes. Not sure why yet.
2011-12-12rt: Write CFI instructions that (might) work on mac in __morestackBrian Anderson-0/+14
The DW_CFA_val_offset_sf instruction doesn't seem to work on mac, even after implementing it in the llvm-mc assembler, so now I'm looking for a different way to communicate the stack pointer adjustment to the unwinder.
2011-12-11rt: Make unwinding through __morestack work on macBrian Anderson-18/+6
Had to bump the min stack size in some of the tests from 256 bytes to 1024 bytes. Not sure why yet.
2011-12-11rt: Write CFI instructions that (might) work on mac in __morestackBrian Anderson-11/+35
The DW_CFA_val_offset_sf instruction doesn't seem to work on mac, even after implementing it in the llvm-mc assembler, so now I'm looking for a different way to communicate the stack pointer adjustment to the unwinder.
2011-12-11rt: Add DWARF CFI info to asm_call_on_stackBrian Anderson-16/+57
This will allow the unwinder to unwind this function so we can call upcall_fail on the C stack.
2011-12-10build: Use llvm-mc as our assemblerBrian Anderson-4/+8
LLVM's assembler understands .cfi pseudo-ops on the mac, which we need in order to generate frames that can be DWARF-unwound
2011-12-08rt: Make __morestack work on win32Brian Anderson-10/+8
2011-12-06rt: Various tweaks to make __morestack unwinding work on linuxBrian Anderson-0/+18
When unwinding through __morestack the stack limit in the TLS is invalidated and must be reset. Instead of actually landing at __morestack we're just going to make all our Rust landing pads call upcall_reset_stack_limit, which will find the stack segment that corresponds to the current stack pointer and put the limit in the TLS. Also massively expand the stack segment red zone to make more room for the dynamic linker. Will fix in the future.
2011-12-06Make valgrind usage more consistent and less error prone.Austin Seipp-8/+2
I was still having issues with the build system somehow getting confused as to which set of valgrind headers to use when compiling rt. This commit moves all the valgrind headers into their own directory under rt and makes the usage more consistent. The compiler is now passed the -DNVALGRIND flag when valgrind is not installed, as opposed to passing -DHAVE_VALGRIND. We also pass -I src/rt to the compiler when building rt so you can more easily import what you want. I also cleaned up some erroneous #includes along the way. It should be safe to always just import the local valgrind headers and use them without question. NVALGRIND turns the operations to no-ops when it is active, and the build and tests run cleanly with or without.
2011-12-05rt: Use an out pointer for rust_new_stackBrian Anderson-5/+10
upcall_call_shim_on_c_stack does not handle return values
2011-12-05rt: Unwind through __morestack on 32-bit linuxBrian Anderson-0/+24
2011-12-04rt: Update 32-bit __morestack for recent LLVM changesBrian Anderson-16/+13
2011-12-02rt: Implement 32-bit __morestack for macBrian Anderson-21/+63
2011-12-02rt: Fix __morestack prologue on x86_64 macBrian Anderson-1/+1
2011-12-01rt: Fix 64-bit linux __morestackBrian Anderson-2/+26
2011-12-01rt: Implement __morestack for 64-bit mac. Doesn't unwind yetBrian Anderson-10/+5
2011-12-01rt: Implement record_sp for 64-bit macBrian Anderson-1/+8
2011-12-01rt: Add FIXME's about future changes to LLVM's __morestack implBrian Anderson-0/+2
2011-11-30rt: Reorganize stack growth codeBrian Anderson-22/+20
2011-11-30rt: Remove redundant defs of RUST_DEL_STACKBrian Anderson-2/+0
2011-11-30rt: Remove the stack pointer field of stk_segBrian Anderson-28/+7
2011-11-30rt: Remove upcall_alloc_c_stack/call_c_stack, et. al.Brian Anderson-114/+0
We are using upcall_call_shim_on_c_stack now
2011-11-30rt: Rewrite 32-bit __morestack to use the shim upcallBrian Anderson-85/+63
2011-11-29rt: Request the correct number of bytes on the C stackBrian Anderson-1/+1
2011-11-29rt: Conditionalize out the 32-bit __morestack for everything but LinuxBrian Anderson-0/+7
Currently broken everywhere else
2011-11-29rt: Fix the name of the linux macro in x86_64/morestack.SBrian Anderson-1/+1
2011-11-29rt: Fix calculation of stack args location in x86_64/morestack.SBrian Anderson-3/+4
2011-11-29rt: Fix i386/morestack.S for static linkingBrian Anderson-1/+2
2011-11-28rt: Make 64-bit __morestack grow and shrink properlyBrian Anderson-6/+47
2011-11-28rt: Remove a FIXME frome x86_64/morestack.SBrian Anderson-1/+0
2011-11-28rt: Get 64-bit Linux __morestack allocating new stacksBrian Anderson-5/+10
2011-11-28rt: Set hidden visibility on __morestackBrian Anderson-0/+18
Each crate will have its own copy of this function, which should not be exported.
2011-11-28rt: Rename L$bail to .L$bail in i386/morestack.SBrian Anderson-2/+2
2011-11-28rt: Implement part of the 64-bit __morestackBrian Anderson-20/+42
2011-11-27rt: Implement record_sp for 64-bit linuxBrian Anderson-0/+5
2011-11-22rt: Make __morestack build on win32Brian Anderson-1/+6
2011-11-22rt: Add x86_64 record_sp stubBrian Anderson-0/+12
2011-11-22rt: Make __morestack (without unwinding) work on 32-bit linuxBrian Anderson-19/+44
2011-11-18get pure wrappers approach runningNiko Matsakis-0/+45
2011-11-17add an extra underscoreNiko Matsakis-1/+1