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559ceeed62
bogus_64_magic is only a dead-end loop. There is no need for an out-of-order function (and unannotated local label), so just handle it in-place and also store 0xbad-m-a-g-i-c to %rcx beforehand, in case someone is inspecting registers. Here a qemu+gdb example: Remote debugging using localhost:1235 wakeup_long64 () at arch/x86/kernel/acpi/wakeup_64.S:26 26 jmp 1b (gdb) info registers rax 0x123456789abcdef0 1311768467463790320 rbx 0x0 0 rcx 0xbad6d61676963 3286910041024867 ^^^^^^^^^^^^^^^ [ bp: Add the gdb example. ] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Len Brown <lenb@kernel.org> Cc: linux-pm@vger.kernel.org Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190906075550.23435-1-jslaby@suse.cz |
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| .. | ||
| apei.c | ||
| boot.c | ||
| cppc_msr.c | ||
| cstate.c | ||
| Makefile | ||
| sleep.c | ||
| sleep.h | ||
| wakeup_32.S | ||
| wakeup_64.S | ||