1 /*
2 * Copyright (c) 2017 Oticon A/S
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 /**
8 * Functions to print errors and traces
9 */
10
11 #include <stdlib.h> /* for exit */
12 #include <stdio.h> /* for printfs */
13 #include <stdarg.h> /* for va args */
14 #include <unistd.h>
15 #include "soc.h"
16 #include "posix_board_if.h"
17 #include "cmdline.h"
18
posix_vprint_error_and_exit(const char * format,va_list vargs)19 void posix_vprint_error_and_exit(const char *format, va_list vargs)
20 {
21 vfprintf(stderr, format, vargs);
22 posix_exit(1);
23 }
24
posix_vprint_warning(const char * format,va_list vargs)25 void posix_vprint_warning(const char *format, va_list vargs)
26 {
27 vfprintf(stderr, format, vargs);
28 }
29
posix_vprint_trace(const char * format,va_list vargs)30 void posix_vprint_trace(const char *format, va_list vargs)
31 {
32 vfprintf(stdout, format, vargs);
33 }
34
posix_print_error_and_exit(const char * format,...)35 void posix_print_error_and_exit(const char *format, ...)
36 {
37 va_list variable_args;
38
39 va_start(variable_args, format);
40 posix_vprint_error_and_exit(format, variable_args);
41 va_end(variable_args);
42 }
43
posix_print_warning(const char * format,...)44 void posix_print_warning(const char *format, ...)
45 {
46 va_list variable_args;
47
48 va_start(variable_args, format);
49 vfprintf(stderr, format, variable_args);
50 va_end(variable_args);
51 }
52
posix_print_trace(const char * format,...)53 void posix_print_trace(const char *format, ...)
54 {
55 va_list variable_args;
56
57 va_start(variable_args, format);
58 vfprintf(stdout, format, variable_args);
59 va_end(variable_args);
60 }
61
62 /**
63 * Are stdout and stderr connected to a tty
64 * 0 = no
65 * 1 = yes
66 * -1 = we do not know yet
67 * Indexed 0:stdout, 1:stderr
68 */
69 static int is_a_tty[2] = {-1, -1};
70
trace_disable_color(char * argv,int offset)71 void trace_disable_color(char *argv, int offset)
72 {
73 is_a_tty[0] = 0;
74 is_a_tty[1] = 0;
75 }
76
trace_enable_color(char * argv,int offset)77 void trace_enable_color(char *argv, int offset)
78 {
79 is_a_tty[0] = -1;
80 is_a_tty[1] = -1;
81
82 }
83
trace_force_color(char * argv,int offset)84 void trace_force_color(char *argv, int offset)
85 {
86 is_a_tty[0] = 1;
87 is_a_tty[1] = 1;
88 }
89
posix_trace_over_tty(int file_number)90 int posix_trace_over_tty(int file_number)
91 {
92 return is_a_tty[file_number];
93 }
94
decide_about_color(void)95 static void decide_about_color(void)
96 {
97 if (is_a_tty[0] == -1) {
98 is_a_tty[0] = isatty(STDOUT_FILENO);
99 }
100 if (is_a_tty[1] == -1) {
101 is_a_tty[1] = isatty(STDERR_FILENO);
102 }
103 }
104
105 NATIVE_TASK(decide_about_color, PRE_BOOT_2, 0);
106
native_add_tracing_options(void)107 void native_add_tracing_options(void)
108 {
109 static struct args_struct_t trace_options[] = {
110 /*
111 * Fields:
112 * manual, mandatory, switch,
113 * option_name, var_name ,type,
114 * destination, callback,
115 * description
116 */
117 { false, false, true,
118 "color", "color", 'b',
119 NULL, trace_enable_color,
120 "(default) Enable color in traces if printing to console"},
121 { false, false, true,
122 "no-color", "no-color", 'b',
123 NULL, trace_disable_color,
124 "Disable color in traces even if printing to console"},
125 { false, false, true,
126 "force-color", "force-color", 'b',
127 NULL, trace_force_color,
128 "Enable color in traces even if printing to files/pipes"},
129 ARG_TABLE_ENDMARKER};
130
131 native_add_command_line_opts(trace_options);
132 }
133
