diff options
Diffstat (limited to 'arch/arm/kernel/unwind.c')
| -rw-r--r-- | arch/arm/kernel/unwind.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c index a37ea6c772cd..53be7ea6181b 100644 --- a/arch/arm/kernel/unwind.c +++ b/arch/arm/kernel/unwind.c @@ -28,6 +28,7 @@ #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/list.h> +#include <linux/module.h> #include <asm/stacktrace.h> #include <asm/traps.h> @@ -395,8 +396,18 @@ int unwind_frame(struct stackframe *frame) idx = unwind_find_idx(frame->pc); if (!idx) { - if (frame->pc && kernel_text_address(frame->pc)) + if (frame->pc && kernel_text_address(frame->pc)) { + if (in_module_plt(frame->pc) && frame->pc != frame->lr) { + /* + * Quoting Ard: Veneers only set PC using a + * PC+immediate LDR, and so they don't affect + * the state of the stack or the register file + */ + frame->pc = frame->lr; + return URC_OK; + } pr_warn("unwind: Index not found %08lx\n", frame->pc); + } return -URC_FAILURE; } |