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Re: [PATCH v2 01/30] bsd-user: Add stubs for new signal routines


From: Richard Henderson
Subject: Re: [PATCH v2 01/30] bsd-user: Add stubs for new signal routines
Date: Tue, 2 Nov 2021 19:37:23 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0

On 11/2/21 6:52 PM, Warner Losh wrote:
Until the signal support is merged from the bsd-user fork, we need stubs
for cpu_loop_exit_sigsegv and cpu_loop_exit_sigbus to link. These call
abort after logging a message. Since singals aren't supported here
yet, this is sufficient.

Signed-off-by: Warner Losh <imp@bsdimp.com>
---
  bsd-user/signal.c | 21 +++++++++++++++++++++
  1 file changed, 21 insertions(+)

diff --git a/bsd-user/signal.c b/bsd-user/signal.c
index 0c1093deb1..05b277c642 100644
--- a/bsd-user/signal.c
+++ b/bsd-user/signal.c
@@ -20,6 +20,11 @@
  #include "qemu/osdep.h"
  #include "qemu.h"
+/*
+ * Stubbed out routines until we merge signal support from bsd-user
+ * fork.
+ */
+
  /*
   * Queue a signal so that it will be send to the virtual CPU as soon as
   * possible.
@@ -36,3 +41,19 @@ void signal_init(void)
  void process_pending_signals(CPUArchState *cpu_env)
  {
  }
+
+void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr,
+                           MMUAccessType access_type, bool maperr, uintptr_t 
ra)
+{
+    qemu_log_mask(LOG_UNIMP, "No signal support for SIGSEGV\n");
+    /* unreachable */
+    abort();
+}
+
+void cpu_loop_exit_sigbus(CPUState *cpu, target_ulong addr,
+                          MMUAccessType access_type, uintptr_t ra)
+{
+    qemu_log_mask(LOG_UNIMP, "No signal support for SIGBUS\n");
+    /* unreachable */
+    abort();
+}


I'm going to apply this directly to master as a build fix.
Sorry about that.


r~



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