When I debug kernel with kernel core, backtrace command ends around
alltraps_kern_meltdown(). The following diff fixes this problem.
ok?
Teach gdb that the trap frame should be used for for
alltraps_kern_meltdown()
Index: gnu/usr.bin/binutils/gdb/amd64obsd-tdep.c
===================================================================
RCS file: /cvs/src/gnu/usr.bin/binutils/gdb/amd64obsd-tdep.c,v
retrieving revision 1.13
diff -u -p -r1.13 amd64obsd-tdep.c
--- gnu/usr.bin/binutils/gdb/amd64obsd-tdep.c 21 Oct 2019 13:09:52 -0000
1.13
+++ gnu/usr.bin/binutils/gdb/amd64obsd-tdep.c 21 Dec 2019 06:52:03 -0000
@@ -463,6 +463,7 @@ amd64obsd_trapframe_sniffer (const struc
|| (name[0] == 'X' && strncmp(name, "Xipi_", 5) != 0)
|| (strcmp (name, "alltraps") == 0)
|| (strcmp (name, "alltraps_kern") == 0)
+ || (strcmp (name, "alltraps_kern_meltdown") == 0)
|| (strcmp (name, "intr_fast_exit") == 0)
|| (strcmp (name, "intr_exit_recurse") == 0)));
}
