diff options
| author | Nick Hudson <skrll@netbsd.org> | 2020-05-17 11:15:29 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-06-02 08:42:37 -0700 |
| commit | 71b04329c4f7d5824a289ca5225e1883a278cf3b (patch) | |
| tree | 0606bc45c54355aa90eca08e38fe704c10f126dd /accel | |
| parent | 853d9a4be8c281547797249dd0d329d807fc7fd7 (diff) | |
accel/tcg: Provide a NetBSD specific aarch64 cpu_signal_handler
Fix qemu build on NetBSD/evbarm-aarch64 by providing a NetBSD specific
cpu_signal_handler.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nick Hudson <skrll@netbsd.org>
Message-Id: <20200517101529.5367-1-skrll@netbsd.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/tcg/user-exec.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index bc391eb454..d8b027f8c1 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -558,6 +558,32 @@ int cpu_signal_handler(int host_signum, void *pinfo, #elif defined(__aarch64__) +#if defined(__NetBSD__) + +#include <ucontext.h> +#include <sys/siginfo.h> + +int cpu_signal_handler(int host_signum, void *pinfo, void *puc) +{ + ucontext_t *uc = puc; + siginfo_t *si = pinfo; + unsigned long pc; + int is_write; + uint32_t esr; + + pc = uc->uc_mcontext.__gregs[_REG_PC]; + esr = si->si_trap; + + /* + * siginfo_t::si_trap is the ESR value, for data aborts ESR.EC + * is 0b10010x: then bit 6 is the WnR bit + */ + is_write = extract32(esr, 27, 5) == 0x12 && extract32(esr, 6, 1) == 1; + return handle_cpu_signal(pc, si, is_write, &uc->uc_sigmask); +} + +#else + #ifndef ESR_MAGIC /* Pre-3.16 kernel headers don't have these, so provide fallback definitions */ #define ESR_MAGIC 0x45535201 @@ -620,6 +646,7 @@ int cpu_signal_handler(int host_signum, void *pinfo, void *puc) } return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); } +#endif #elif defined(__s390__) |