From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 5 Sep 2017 02:53:50 +0000 (-0700)
Subject: Define an error function in the PPC simulator library.
X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=625ce09c1cfb557725310f602ee66ac1475d780e;p=deliverable%2Fbinutils-gdb.git

Define an error function in the PPC simulator library.

Previously this used the error function from GDB directly when linked
against GDB instead of the error method in the host callbacks
structure.  This was exposed via a link error when GDB was converted
to C++.  The error function invokes the error callback similar to
sim_io_error.

Note that there are also error functions in sim/ppc/main.c and
sim/ppc/misc.c.  The ppc libsim.a expects each consumer to provide
several symbols used by the library including "error".  sim-calls.c
provides these symbols when the library is linked into gdb.  The dgen,
igen, tmp-filter, tmp-ld-decode, tmp-ld-cache, and tmp-ld-insn programs
use the functions from misc.c.  psim uses the functions from main.c.

sim/ppc/ChangeLog:

	PR sim/20863
	* sim_calls.c (error): New function.
---

diff --git a/sim/ppc/ChangeLog b/sim/ppc/ChangeLog
index c0bb1f5b8b..9573e7ba04 100644
--- a/sim/ppc/ChangeLog
+++ b/sim/ppc/ChangeLog
@@ -1,3 +1,8 @@
+2017-09-05  John Baldwin  <jhb@FreeBSD.org>
+
+	PR sim/20863
+	* sim_calls.c (error): New function.
+
 2017-02-13  Mike Frysinger  <vapier@gentoo.org>
 
 	* cpu.h: Include libiberty.h.
diff --git a/sim/ppc/sim_calls.c b/sim/ppc/sim_calls.c
index 470c95862a..eb5d1a792b 100644
--- a/sim/ppc/sim_calls.c
+++ b/sim/ppc/sim_calls.c
@@ -386,6 +386,16 @@ sim_io_error (SIM_DESC sd, const char *fmt, ...)
 
 /****/
 
+void NORETURN
+error (const char *msg, ...)
+{
+  va_list ap;
+  va_start(ap, msg);
+  callbacks->evprintf_filtered (callbacks, msg, ap);
+  va_end(ap);
+  callbacks->error (callbacks, "");
+}
+
 void *
 zalloc(long size)
 {