| // Copyright 2020 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <phys/stack.h> |
| |
| BootStack boot_stack, phys_exception_stack; |
| BootUnsafeStack boot_unsafe_stack, phys_exception_unsafe_stack; |
| BootShadowCallStack boot_shadow_call_stack, phys_exception_shadow_call_stack; |
| |
| // This considers the limit to be "on". |
| bool BootStack::IsOnStack(uintptr_t sp) const { |
| const uintptr_t base = reinterpret_cast<uintptr_t>(stack); |
| return base <= sp && sp - base <= sizeof(stack); |
| } |
| |
| #if __has_feature(shadow_call_stack) |
| |
| arch::ShadowCallStackBacktrace BootShadowCallStack::BackTrace(uintptr_t scsp) const { |
| return arch::ShadowCallStackBacktrace(shadow_call_stack, scsp); |
| } |
| |
| #endif // __has_feature(shadow_call_stack) |
