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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-09-17 10:05:32 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-11-02 07:00:42 -0400 |
| commit | 44c8f2cd905434358a292f581f33f434f374327b (patch) | |
| tree | da20a05f2662fea100a1a52bcbc06f8a1ed1e221 /linux-user | |
| parent | 8cc7b85d56b629e4ffceea85c3a0a4ad8754153a (diff) | |
linux-user/host/alpha: Populate host_signal.h
Split host_signal_pc and host_signal_write out of user-exec.c.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/host/alpha/host-signal.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/linux-user/host/alpha/host-signal.h b/linux-user/host/alpha/host-signal.h new file mode 100644 index 0000000000..e080be412f --- /dev/null +++ b/linux-user/host/alpha/host-signal.h @@ -0,0 +1,42 @@ +/* + * host-signal.h: signal info dependent on the host architecture + * + * Copyright (c) 2003-2005 Fabrice Bellard + * Copyright (c) 2021 Linaro Limited + * + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef ALPHA_HOST_SIGNAL_H +#define ALPHA_HOST_SIGNAL_H + +static inline uintptr_t host_signal_pc(ucontext_t *uc) +{ + return uc->uc_mcontext.sc_pc; +} + +static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) +{ + uint32_t *pc = (uint32_t *)host_signal_pc(uc); + uint32_t insn = *pc; + + /* XXX: need kernel patch to get write flag faster */ + switch (insn >> 26) { + case 0x0d: /* stw */ + case 0x0e: /* stb */ + case 0x0f: /* stq_u */ + case 0x24: /* stf */ + case 0x25: /* stg */ + case 0x26: /* sts */ + case 0x27: /* stt */ + case 0x2c: /* stl */ + case 0x2d: /* stq */ + case 0x2e: /* stl_c */ + case 0x2f: /* stq_c */ + return true; + } + return false; +} + +#endif |