tetl 0.1.0
Embedded Template Library
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debug_trap.hpp
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1// SPDX-License-Identifier: BSL-1.0
2// SPDX-FileCopyrightText: Copyright (C) 2021 Tobias Hienzsch
3
4#ifndef TETL_CONFIG_DEBUG_TRAP_HPP
5#define TETL_CONFIG_DEBUG_TRAP_HPP
6
7#include <etl/_config/attributes.hpp>
8#include <etl/_config/preprocessor.hpp>
9
10#if !defined(TETL_NDEBUG) && defined(NDEBUG) && !defined(TETL_DEBUG)
11 #define TETL_NDEBUG 1
12#else
13 #define TETL_DEBUG 1
14#endif
15
16#if defined(_MSC_VER)
17 #define TETL_DEBUG_TRAP __debugbreak
18#else
19
20 #define TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION 1
21 #define TETL_DEBUG_TRAP_IMPL_BULTIN_TRAP 2
22 #define TETL_DEBUG_TRAP_IMPL_BULTIN_DEBUGTRAP 3
23 #define TETL_DEBUG_TRAP_IMPL_SIGTRAP 4
24
25 #if defined(__i386__) || defined(__x86_64__)
26 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
27
28inline auto trap_inst() -> void
29{
30 __asm__ volatile("int $0x03");
31}
32 #elif defined(__thumb__)
33 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
34
35inline auto trap_inst() -> void
36{
37 __asm__ volatile(".inst 0xde01");
38}
39 #elif defined(__arm__) && !defined(__thumb__)
40 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
41
42inline auto trap_inst() -> void
43{
44 __asm__ volatile(".inst 0xe7f001f0");
45}
46 #elif defined(__aarch64__) && defined(__APPLE__)
47 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_BULTIN_DEBUGTRAP
48 #elif defined(__aarch64__)
49 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
50
51inline auto trap_inst() -> void
52{
53 __asm__ volatile(".inst 0xd4200000");
54}
55 #elif defined(__powerpc__)
56 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
57
58inline auto trap_inst() -> void
59{
60 __asm__ volatile(".4byte 0x7d821008");
61}
62 #elif defined(__riscv)
63 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
64
65inline auto trap_inst() -> void
66{
67 __asm__ volatile(".4byte 0x00100073");
68}
69 #elif defined(__AVR__)
70 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
71
72inline auto trap_inst() -> void { }
73 #elif defined(__STDC_HOSTED__) // hosted builds
74 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_SIGTRAP
75 #else
76 // TETL_DEBUG_TRAP is not supported on this target
77 #define TETL_DEBUG_TRAP_IMPL TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
78
79inline auto trap_inst() -> void { }
80 #endif
81
82 #if !defined(TETL_DEBUG_TRAP_IMPL)
83inline auto TETL_DEBUG_TRAP() -> void { }
84 #elif TETL_DEBUG_TRAP_IMPL == TETL_DEBUG_TRAP_IMPL_TRAP_INSTRUCTION
85inline auto TETL_DEBUG_TRAP() -> void
86{
87 trap_inst();
88}
89 #elif TETL_DEBUG_TRAP_IMPL == TETL_DEBUG_TRAP_IMPL_BULTIN_DEBUGTRAP
90inline auto TETL_DEBUG_TRAP() -> void
91{
92 __builtin_debugtrap();
93}
94 #elif TETL_DEBUG_TRAP_IMPL == TETL_DEBUG_TRAP_IMPL_BULTIN_TRAP
95inline auto TETL_DEBUG_TRAP() -> void
96{
97 __builtin_trap();
98}
99 #elif TETL_DEBUG_TRAP_IMPL == TETL_DEBUG_TRAP_IMPL_SIGTRAP
100 #include <signal.h>
101
102inline auto TETL_DEBUG_TRAP() -> void
103{
104 ::raise(SIGTRAP);
105}
106 #else
107 #error "invalid TETL_DEBUG_TRAP_IMPL value"
108 #endif
109
110#endif
111
112#endif // TETL_CONFIG_DEBUG_TRAP_HPP
TETL_DEBUG_TRAP
auto TETL_DEBUG_TRAP() -> void
Definition debug_trap.hpp:85