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target-arm: A64: Add support for dumping AArch64 VFP register state 

When dumping the current CPU state, we can also get a request
to dump the FPU state along with the CPU's integer state.

Add support to dump the VFP state when that flag is set, so that
we can properly debug code that modifies floating point registers.

Signed-off-by: Alexander Graf <agraf@suse.de>
[WN: Commit message tweak, rebased. Output all registers, two per-line.]
Signed-off-by: Will Newton <will.newton@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Alexander Graf 2014-01-04 22:15:49 +00:00 committed by Peter Maydell
parent 13a7f79dfe
commit f6d8a31440
1 changed files with 16 additions and 0 deletions
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16
target-arm/translate-a64.c
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@ -119,6 +119,22 @@ void aarch64_cpu_dump_state(CPUState *cs, FILE *f,
psr & PSTATE_C ? 'C' : '-',
psr & PSTATE_V ? 'V' : '-');
cpu_fprintf(f, "\n");
if (flags & CPU_DUMP_FPU) {
int numvfpregs = 32;
for (i = 0; i < numvfpregs; i += 2) {
uint64_t vlo = float64_val(env->vfp.regs[i * 2]);
uint64_t vhi = float64_val(env->vfp.regs[(i * 2) + 1]);
cpu_fprintf(f, "q%02d=%016" PRIx64 ":%016" PRIx64 " ",
i, vhi, vlo);
vlo = float64_val(env->vfp.regs[(i + 1) * 2]);
vhi = float64_val(env->vfp.regs[((i + 1) * 2) + 1]);
cpu_fprintf(f, "q%02d=%016" PRIx64 ":%016" PRIx64 "\n",
i + 1, vhi, vlo);
}
cpu_fprintf(f, "FPCR: %08x FPSR: %08x\n",
vfp_get_fpcr(env), vfp_get_fpsr(env));
}
}
static int get_mem_index(DisasContext *s)