56c1dd92c0
commit bc715ee4dbc5db462c59b9cfba92d31b3274fe3a upstream.
The function_graph_enter() function does the work of calling the function
graph hook function and the management of the shadow stack, simplifying the
work done in the architecture dependent prepare_ftrace_return().
Have superh use the new code, and remove the shadow stack management as well as
having to set up the trace structure.
This is needed to prepare for a fix of a design bug on how the curr_ret_stack
is used.
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Cc: stable@kernel.org
Fixes:
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||
|---|---|---|
| .. | ||
| cpu | ||
| vsyscall | ||
| .gitignore | ||
| asm-offsets.c | ||
| crash_dump.c | ||
| debugtraps.S | ||
| disassemble.c | ||
| dma-coherent.c | ||
| dumpstack.c | ||
| dwarf.c | ||
| entry-common.S | ||
| ftrace.c | ||
| head_32.S | ||
| head_64.S | ||
| hw_breakpoint.c | ||
| idle.c | ||
| io.c | ||
| io_trapped.c | ||
| iomap.c | ||
| ioport.c | ||
| irq.c | ||
| irq_32.c | ||
| irq_64.c | ||
| kdebugfs.c | ||
| kgdb.c | ||
| kprobes.c | ||
| machine_kexec.c | ||
| machvec.c | ||
| Makefile | ||
| module.c | ||
| nmi_debug.c | ||
| perf_callchain.c | ||
| perf_event.c | ||
| process.c | ||
| process_32.c | ||
| process_64.c | ||
| ptrace.c | ||
| ptrace_32.c | ||
| ptrace_64.c | ||
| reboot.c | ||
| relocate_kernel.S | ||
| return_address.c | ||
| setup.c | ||
| sh_bios.c | ||
| sh_ksyms_32.c | ||
| sh_ksyms_64.c | ||
| signal_32.c | ||
| signal_64.c | ||
| smp.c | ||
| stacktrace.c | ||
| swsusp.c | ||
| sys_sh.c | ||
| sys_sh32.c | ||
| syscalls_32.S | ||
| syscalls_64.S | ||
| time.c | ||
| topology.c | ||
| traps.c | ||
| traps_32.c | ||
| traps_64.c | ||
| unwinder.c | ||
| vmlinux.lds.S | ||