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Define an error function in the PPC simulator library.

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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.
This commit is contained in:
John Baldwin 2017-09-04 19:53:50 -07:00
parent a379bfd00e
commit 625ce09c1c
2 changed files with 15 additions and 0 deletions
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5
sim/ppc/ChangeLog
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@ -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.

10
sim/ppc/sim_calls.c
View file

@ -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)
{