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target/nios2: Implement nios2_cpu_record_sigsegv

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Because the linux-user kuser page handling is currently implemented
by detecting magic addresses in the unnamed 0xaa trap, we cannot
simply remove nios2_cpu_tlb_fill and rely on the fallback code.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-09-30 13:41:43 -04:00
parent 52d4899bf3
commit fac94cb36d
3 changed files with 14 additions and 5 deletions
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6
target/nios2/cpu.c
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@ -216,9 +216,11 @@ static const struct SysemuCPUOps nios2_sysemu_ops = {
static const struct TCGCPUOps nios2_tcg_ops = {
.initialize = nios2_tcg_init,
.tlb_fill = nios2_cpu_tlb_fill,
#ifndef CONFIG_USER_ONLY
#ifdef CONFIG_USER_ONLY
.record_sigsegv = nios2_cpu_record_sigsegv,
#else
.tlb_fill = nios2_cpu_tlb_fill,
.cpu_exec_interrupt = nios2_cpu_exec_interrupt,
.do_interrupt = nios2_cpu_do_interrupt,
.do_unaligned_access = nios2_cpu_do_unaligned_access,