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[PULL 06/40] bsd-user: Bring in docs from linux-user for signal_pending
From: |
Warner Losh |
Subject: |
[PULL 06/40] bsd-user: Bring in docs from linux-user for signal_pending |
Date: |
Mon, 31 Jan 2022 12:56:02 -0700 |
This is currently unused, so no code adjustments are needed.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
bsd-user/qemu.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index 4dd209e402d..671b26f00cc 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -86,7 +86,14 @@ typedef struct TaskState {
struct image_info *info;
struct emulated_sigtable sigtab[TARGET_NSIG];
- int signal_pending; /* non zero if a signal may be pending */
+ /*
+ * Nonzero if process_pending_signals() needs to do something (either
+ * handle a pending signal or unblock signals).
+ * This flag is written from a signal handler so should be accessed via
+ * the qatomic_read() and qatomic_set() functions. (It is not accessed
+ * from multiple threads.)
+ */
+ int signal_pending;
uint8_t stack[];
} __attribute__((aligned(16))) TaskState;
--
2.33.1
- [PULL 00/40] Bsd user arm 2022q1 patches, Warner Losh, 2022/01/31
- [PULL 01/40] bsd-user: Complete FreeBSD siginfo, Warner Losh, 2022/01/31
- [PULL 06/40] bsd-user: Bring in docs from linux-user for signal_pending,
Warner Losh <=
- [PULL 10/40] bsd-user/signal.c: Implement cpu_loop_exit_sigsegv, Warner Losh, 2022/01/31
- [PULL 07/40] bsd-user/arm/target_arch_cpu.h: Move EXCP_ATOMIC to match linux-user, Warner Losh, 2022/01/31
- [PULL 36/40] bsd-user/signal.c: implement do_sigaction, Warner Losh, 2022/01/31
- [PULL 37/40] bsd-user/signal.c: do_sigaltstack, Warner Losh, 2022/01/31
- [PULL 29/40] bsd-user/signal.c: Fill in queue_signal, Warner Losh, 2022/01/31
- [PULL 35/40] bsd-user/signal.c: implement do_sigreturn, Warner Losh, 2022/01/31
- [PULL 04/40] bsd-user/arm/signal.c: get_mcontext should zero vfp data, Warner Losh, 2022/01/31
- [PULL 19/40] bsd-user/host/arm/host-signal.h: Implement host_signal_*, Warner Losh, 2022/01/31
- [PULL 11/40] bsd-user/signal.c: implement cpu_loop_exit_sigbus, Warner Losh, 2022/01/31
- [PULL 05/40] bsd-user: Remove vestiges of signal queueing code, Warner Losh, 2022/01/31