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OpenCloudOS-Kernel
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3 Commits

Author SHA1 Message Date
Jim Wilson b8c8a9590e
RISC-V: Add FP register ptrace support for gdb. 
Add a variable and a macro to describe FP registers, assuming only D is
supported.  FP code is conditional on CONFIG_FPU.  The FP regs and FCSR
are copied separately to avoid copying struct padding.  Tested by hand and
with the gdb testsuite.

Signed-off-by: Jim Wilson <jimw@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
 2018-10-22 17:38:04 -07:00
Jim Wilson 1db9b80980
RISC-V: Fix PTRACE_SETREGSET bug. 
In riscv_gpr_set, pass regs instead of &regs to user_regset_copyin to fix
gdb segfault.

Signed-off-by: Jim Wilson <jimw@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
 2018-07-04 14:12:47 -07:00
Palmer Dabbelt e2c0cdfba7 RISC-V: User-facing API 
This patch contains code that is in some way visible to the user:
including via system calls, the VDSO, module loading and signal
handling.  It also contains some generic code that is ABI visible.

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
 2017-09-26 15:26:48 -07:00