diff options
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/calls.S | 3 | ||||
| -rw-r--r-- | arch/arm/kernel/traps.c | 20 | ||||
| -rw-r--r-- | arch/arm/kernel/vmlinux-xip.lds.S | 5 |
3 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 703fa0f3cd8f..08030b18f10a 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -403,6 +403,9 @@ CALL(sys_copy_file_range) CALL(sys_preadv2) CALL(sys_pwritev2) + CALL(sys_pkey_mprotect) +/* 395 */ CALL(sys_pkey_alloc) + CALL(sys_pkey_free) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index bc698383e822..9688ec0c6ef4 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -74,6 +74,26 @@ void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long dump_mem("", "Exception stack", frame + 4, frame + 4 + sizeof(struct pt_regs)); } +void dump_backtrace_stm(u32 *stack, u32 instruction) +{ + char str[80], *p; + unsigned int x; + int reg; + + for (reg = 10, x = 0, p = str; reg >= 0; reg--) { + if (instruction & BIT(reg)) { + p += sprintf(p, " r%d:%08x", reg, *stack--); + if (++x == 6) { + x = 0; + p = str; + printk("%s\n", str); + } + } + } + if (p != str) + printk("%s\n", str); +} + #ifndef CONFIG_ARM_UNWIND /* * Stack pointers should always be within the kernels view of diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S index 7fa487ef7e2f..37b2a11af345 100644 --- a/arch/arm/kernel/vmlinux-xip.lds.S +++ b/arch/arm/kernel/vmlinux-xip.lds.S @@ -3,6 +3,9 @@ * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz> */ +/* No __ro_after_init data in the .rodata section - which will always be ro */ +#define RO_AFTER_INIT_DATA + #include <asm-generic/vmlinux.lds.h> #include <asm/cache.h> #include <asm/thread_info.h> @@ -223,6 +226,8 @@ SECTIONS . = ALIGN(PAGE_SIZE); __init_end = .; + *(.data..ro_after_init) + NOSAVE_DATA CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES) READ_MOSTLY_DATA(L1_CACHE_BYTES) |