Add log file support to flashrom. The log file will always contain all verbose messages even if the user doesn't specify -V. If the user specifies -VV, SPEW messages will be logged as well.
Proof of concept, comments welcome. Signed-off-by: Carl-Daniel Hailfinger <[email protected]> Index: flashrom-logfile/flash.h =================================================================== --- flashrom-logfile/flash.h (Revision 1326) +++ flashrom-logfile/flash.h (Arbeitskopie) @@ -229,6 +229,8 @@ #define ERROR_NONFATAL 0x100 /* cli_output.c */ +int open_logfile(char *filename); +int msg_log(const char *fmt, ...); /* Let gcc and clang check for correct printf-style format strings. */ int print(int type, const char *fmt, ...) __attribute__((format(printf, 2, 3))); #define MSG_ERROR 0 Index: flashrom-logfile/cli_output.c =================================================================== --- flashrom-logfile/cli_output.c (Revision 1326) +++ flashrom-logfile/cli_output.c (Arbeitskopie) @@ -2,6 +2,7 @@ * This file is part of the flashrom project. * * Copyright (C) 2009 Sean Nelson <[email protected]> + * Copyright (C) 2011 Carl-Daniel Hailfinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -22,30 +23,70 @@ #include <stdarg.h> #include "flash.h" -int print(int type, const char *fmt, ...) +static FILE *logfile = NULL; + +int open_logfile(char *filename) { + if (!filename) { + msg_gerr("No filename specified.\n"); + return 1; + } + if ((logfile = fopen(filename, "w")) == NULL) { + perror(filename); + return 1; + } + return 0; +} + +int msg_log(const char *fmt, ...) +{ va_list ap; int ret; - FILE *output_type; + if (!logfile) + return -1; + va_start(ap, fmt); + ret = vfprintf(logfile, fmt, ap); + va_end(ap); + return ret; +} + +int print(int type, const char *fmt, ...) +{ + va_list ap; + int ret = 0; + int want_screen = 1; + int want_file = 1; + FILE *output_type = stdout; + switch (type) { case MSG_ERROR: output_type = stderr; break; case MSG_BARF: - if (verbose < 2) - return 0; + if (verbose < 2) { + want_screen = 0; + want_file = 0; + } + break; case MSG_DEBUG: if (verbose < 1) - return 0; + want_screen = 0; + break; case MSG_INFO: default: - output_type = stdout; break; } - va_start(ap, fmt); - ret = vfprintf(output_type, fmt, ap); - va_end(ap); + if (want_screen) { + va_start(ap, fmt); + ret = vfprintf(output_type, fmt, ap); + va_end(ap); + } + if (want_file && logfile) { + va_start(ap, fmt); + ret = vfprintf(logfile, fmt, ap); + va_end(ap); + } return ret; } Index: flashrom-logfile/cli_classic.c =================================================================== --- flashrom-logfile/cli_classic.c (Revision 1326) +++ flashrom-logfile/cli_classic.c (Arbeitskopie) @@ -38,7 +38,8 @@ "-z|" #endif "-E|-r <file>|-w <file>|-v <file>]\n" - " [-c <chipname>] [-m [<vendor>:]<part>] [-l <file>]\n" + " [-c <chipname>] [-m [<vendor>:]<part>] [-l <file>] " + "[-o <file>]\n" " [-i <image>] [-p <programmername>[:<parameters>]]\n\n"); printf("Please note that the command line interface for flashrom has " @@ -72,6 +73,7 @@ "<file>\n" " -i | --image <name> only flash image <name> " "from flash layout\n" + " -o | --output <name> log to file <name>\n" " -L | --list-supported print supported devices\n" #if CONFIG_PRINT_WIKI == 1 " -z | --list-supported-wiki print supported devices " @@ -118,7 +120,7 @@ int operation_specified = 0; int i; - static const char optstring[] = "r:Rw:v:nVEfc:m:l:i:p:Lzh"; + static const char optstring[] = "r:Rw:v:nVEfc:m:l:i:p:Lzho:"; static const struct option long_options[] = { {"read", 1, NULL, 'r'}, {"write", 1, NULL, 'w'}, @@ -136,6 +138,7 @@ {"programmer", 1, NULL, 'p'}, {"help", 0, NULL, 'h'}, {"version", 0, NULL, 'R'}, + {"output", 1, NULL, 'o'}, {NULL, 0, NULL, 0} }; @@ -307,14 +310,17 @@ cli_classic_usage(argv[0]); exit(0); break; + case 'o': + tempstr = strdup(optarg); + if (open_logfile(tempstr)) + cli_classic_abort_usage(); + break; default: cli_classic_abort_usage(); break; } } - /* FIXME: Print the actions flashrom will take. */ - if (list_supported) { print_supported(); exit(0); @@ -355,6 +361,10 @@ flash = NULL; } + /* FIXME: Print the actions flashrom will take. */ + /* For the log. FIXME: Print this only to the log file. */ + print_version(); + /* FIXME: Delay calibration should happen in programmer code. */ myusec_calibrate_delay(); -- http://www.hailfinger.org/ _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
