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author | Tuan Ta <qtt2@cornell.edu> | 2017-09-17 12:57:21 -0400 |
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committer | Tuan Ta <qtt2@cornell.edu> | 2018-01-10 01:02:53 +0000 |
commit | 3fb4d59a9d66d729b292bf804a8b5fdbe6e40d89 (patch) | |
tree | bba3357dcfe7cd0020b720b48c82743f3aa8de13 /src/cpu/o3/base_dyn_inst.cc | |
parent | e8236503ce70ea83f4f61716f54421b32ce009ce (diff) | |
download | gem5-3fb4d59a9d66d729b292bf804a8b5fdbe6e40d89.tar.xz |
arch-riscv,sim: Support clone syscall in RISC-V
(1) This patch sets a correct order of clone syscall's arguments for
RISC-V. Linux kernel 4.15 uses CLONE_BACKWARDS flag by default for
RISC-V. The flag in the Linux kernel defines the list of clone syscall's
arguments in the following order:
clone_flags (flags)
newsp (newStack)
parent_tidptr (ptidPtr)
tls (tlsPtr)
child_tidptr (ctidPtr)
Code reference:
https://github.com/riscv/riscv-linux/blob/master/kernel/fork.c
https://github.com/riscv/riscv-linux/blob/master/arch/riscv/Kconfig
(2) This patch copies a parent thread's register values to its child
thread in clone syscall.
Change-Id: I2eb1c8e80990861080ce7153503ed784fb2c7bdf
Reviewed-on: https://gem5-review.googlesource.com/6904
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-by: Alec Roelke <ar4jc@virginia.edu>
Diffstat (limited to 'src/cpu/o3/base_dyn_inst.cc')
0 files changed, 0 insertions, 0 deletions