There are some empty trap_init() definitions in different ARCHs, Introduce
a new weak trap_init() function to clean them up.
Link: https://lkml.kernel.org/r/20210812123602.76356-1-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> [arm32]
Acked-by: Vineet Gupta [arc]
Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <palmerdabbelt@google.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
#include <asm/unaligned.h>
#include <asm/kprobes.h>
-void __init trap_init(void)
-{
- return;
-}
-
void die(const char *str, struct pt_regs *regs, unsigned long address)
{
show_kernel_fault_diag(str, regs, address);
panic("Oops failed to kill thread");
}
-void __init trap_init(void)
-{
- return;
-}
-
#ifdef CONFIG_KUSER_HELPERS
static void __init kuser_init(void *vectors)
{
{
}
-void __init trap_init(void)
-{
-}
-
asmlinkage void set_esp0(unsigned long ssp)
{
current->thread.esp0 = ssp;
#define TRAP_SYSCALL 1
#define TRAP_DEBUG 0xdb
-void __init trap_init(void)
-{
-}
-
#ifdef CONFIG_GENERIC_BUG
/* Maybe should resemble arch/sh/kernel/traps.c ?? */
int is_valid_bugaddr(unsigned long addr)
}
extern char *exception_vector, *exception_vector_end;
-void __init trap_init(void)
-{
- return;
-}
-
void __init early_trap_init(void)
{
unsigned long ivb = 0;
printk("%s\n", loglvl);
}
-void __init trap_init(void)
-{
- /* Nothing to do here */
-}
-
/* Breakpoint handler */
asmlinkage void breakpoint_c(struct pt_regs *fp)
{
die("Oops", regs, 9);
}
-void __init trap_init(void)
-{
- /* Nothing needs to be done */
-}
-
asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)
{
force_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc);
initialize_ivt(&fault_vector_20);
}
-
-void __init trap_init(void)
-{
-}
die("Bad kernel stack pointer", regs, SIGABRT);
}
-void __init trap_init(void)
-{
-}
-
-
#ifdef CONFIG_PPC_EMULATED_STATS
#define WARN_EMULATED_SETUP(type) .type = { .name = #type }
}
#endif /* CONFIG_GENERIC_BUG */
-/* stvec & scratch is already set from head.S */
-void __init trap_init(void)
-{
-}
-
#ifdef CONFIG_VMAP_STACK
static DEFINE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)],
overflow_stack)__aligned(16);
{
do_IRQ(WINCH_IRQ, regs);
}
-
-void trap_init(void)
-{
-}
void __init __weak pgtable_cache_init(void) { }
+void __init __weak trap_init(void) { }
+
bool initcall_debug;
core_param(initcall_debug, initcall_debug, bool, 0644);