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2014-12-11Relocate binaries that conflict with the pk's address spaceAndrew Waterman3-19/+13
Of course, this is only possible for PIEs, e.g. the dynamic linker.
2014-11-22Revert "Enable support for the four custom instructions"Yunsup Lee1-72/+0
This reverts commit 2fa1726f0ebbe5911cd12c27c42881f17ec43114. Refactoring support for custom instructions.
2014-10-31Implement draft of new calling conventionAndrew Waterman5-14/+12
Here is the new syscall ABI: syscall number in a7 args in a0 - a6 return value in a0 Here is the integer register map: x0 -> x0 x1 -> ra x2 -> sp x3 -> tp x4 -> gp x5 -> t0 x6 -> t1 x7 -> t2 x8 -> s0 x9 -> s1 x10 -> a0 x11 -> a1 x12 -> a2 x13 -> a3 x14 -> a4 x15 -> a5 x16 -> a6 x17 -> a7 x18 -> s2 x19 -> s3 x20 -> s4 x21 -> s5 x22 -> s6 x23 -> s7 x24 -> s8 x25 -> s9 x26 -> s10 x27 -> s11 x28 -> t3 x29 -> t4 x30 -> t5 x31 -> t6
2014-10-28don't forget to release locks!Andrew Waterman1-4/+8
2014-10-26Prioritize fdiv/fsqrt emulationAndrew Waterman1-9/+9
2014-10-26Don't rely on the C libraryAndrew Waterman9-10/+69
2014-10-24Merge pull request #3 from arunthomas/custom_instYunsup Lee1-0/+72
Enable support for the four custom instructions
2014-10-23Enable support for the four custom instructionsArun Thomas1-0/+72
* Update generated encoding.h (generated from riscv-opcodes)
2014-09-11Don't assume null pointers can't be dereferencedAndrew Waterman2-2/+2
This option breaks vm_init's access to word 0 to obtain the memory capacity.
2014-09-11Disable pedantic warning under gcc 4.9.1Andrew Waterman2-2/+2
2014-09-11Support glibc 2.20 programsAndrew Waterman5-2/+9
2014-08-10Fix uarch counter printout type.Christopher Celio1-1/+1
2014-08-07Merge pull request #2 from ccelio/masterAndrew Waterman3-0/+55
Added "-c" option to track uarch counter info.
2014-08-07Added "-c" option to track uarch counter info.Christopher Celio3-0/+55
2014-08-07Fixed README to match the riscv-tools build script install location.Christopher Celio1-1/+1
2014-08-06readmeYunsup Lee2-37/+20
2014-06-25Let timer interrupt stay set on pk start (IP[7]).Christopher Celio1-3/+0
Otherwise, the HW will trip the timer interrupt 4B cycles later and thus not match spike.
2014-06-13Changes to allow spike & RTL behavior to better match each other.Christopher Celio4-3/+10
- EI turned off on sys_exit. - IM/IP cleared on start. - badvaddr only saved to tf on page faults.
2014-06-12Handle options before vm_init is calledAndrew Waterman1-15/+29
This prevents ptbr etc. from being accessed when -p is passed.
2014-06-12Fix file reference counting bug in physical address modeAndrew Waterman1-2/+2
2014-06-12Add file reference counting sanity checkAndrew Waterman1-1/+2
2014-06-03Turn off interrupts when talking to hostAndrew Waterman2-2/+16
2014-05-27Allow mmap to map new segments larger than 1 page on top of existing ↵Colin Schmidt4-6/+44
mappings and add mprotect syscall
2014-05-22remove debug print statementsColin Schmidt1-4/+0
2014-05-22determine the address for an mmap before setuping the vmrColin Schmidt1-11/+10
2014-05-22Add several syscalls, and move syscall header file from newlibColin Schmidt7-20/+218
syscalls added (openat, access, accessat, faccessat, etc.)
2014-05-22Support mmapping files whose length is not divisible by pgsizeAndrew Waterman1-3/+4
2014-05-06fixes vm leak. pages that faulted never decref'd their vmr so it wasn't reusedScott Beamer1-0/+1
2014-04-29PK now advances past breakpoint.Christopher Celio1-0/+1
2014-04-27Use atomic_cas instead of __sync_bool_compare_and_swapAndrew Waterman1-5/+5
2014-04-03Sync encoding.h with opcodesStephen Twigg1-3/+15
2014-03-11New FP encodingAndrew Waterman1-42/+42
2014-03-06Add fclass.{s|d} instructionsAndrew Waterman9-5/+84
2014-03-02Renumber uarch CSRs into custom CSR spaceYunsup Lee1-16/+16
2014-02-10Revert to old AUIPC definitionAndrew Waterman1-4/+2
2014-02-06commit missing definitions for uarch countersYunsup Lee1-0/+56
2014-02-04Abandon MIPS convention for indicating syscall errors in register a3Andrew Waterman12-121/+154
2014-01-17Minor cleanupAndrew Waterman1-10/+4
2014-01-13Assume pc-relative addressingAndrew Waterman4-32/+34
2014-01-13Speed up glibc initAndrew Waterman2-0/+2
2013-12-14Respect rounding mode for FP -> Int conversionsAndrew Waterman1-8/+8
2013-12-14Add -p flag: force physical memory addressingAndrew Waterman4-10/+17
2013-12-14Remove redundant initializationAndrew Waterman1-1/+0
2013-12-13Add times syscallAndrew Waterman1-12/+37
2013-11-25Update to new privileged ISAAndrew Waterman18-500/+674
2013-11-21fix slli/slliw encoding bugYunsup Lee1-2/+2
2013-11-13Add gettimeofday syscallAndrew Waterman1-0/+12
2013-11-05sync pcr.h, correctly name SR_EAYunsup Lee3-37/+16
2013-10-29Update ISA encoding in emulation routinesAndrew Waterman2-24/+23
2013-09-24Fix rv32 bugAndrew Waterman1-1/+1