| Message ID | 20240707191128.10509-8-itachis@FreeBSD.org |
|---|---|
| State | New |
| Headers | show |
| Series | ARM AArch64 Support for BSD | expand |
On 7/7/24 12:11, Ajeet Singh wrote: > From: Stacey Son<sson@FreeBSD.org> > > The function copies register values from the provided target_mcontext_t > structure to the CPUARMState registers. > Note:FP is unfinished upstream but will be a separate commit coming soon. > > Signed-off-by: Stacey Son<sson@FreeBSD.org> > Signed-off-by: Ajeet Singh<itachis@FreeBSD.org> > --- > bsd-user/aarch64/signal.c | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/bsd-user/aarch64/signal.c b/bsd-user/aarch64/signal.c index 43c886e603..13faac8ce6 100644 --- a/bsd-user/aarch64/signal.c +++ b/bsd-user/aarch64/signal.c @@ -95,3 +95,25 @@ abi_long setup_sigframe_arch(CPUARMState *env, abi_ulong frame_addr, return 0; } +/* + * Compare to set_mcontext() in arm64/arm64/machdep.c + * Assumes that the memory is locked if frame points to user memory. + */ +abi_long set_mcontext(CPUARMState *regs, target_mcontext_t *mcp, int srflag) +{ + int err = 0, i; + const uint64_t *gr = mcp->mc_gpregs.gp_x; + + for (i = 0; i < 30; i++) { + regs->xregs[i] = tswap64(gr[i]); + } + + regs->xregs[TARGET_REG_SP] = tswap64(mcp->mc_gpregs.gp_sp); + regs->xregs[TARGET_REG_LR] = tswap64(mcp->mc_gpregs.gp_lr); + regs->pc = mcp->mc_gpregs.gp_elr; + pstate_write(regs, mcp->mc_gpregs.gp_spsr); + + /* XXX FP? */ + + return err; +}