huwcampbell.com
Reactos
1/*
2 * ReactOS log2lines
3 * Written by Jan Roeloffzen
4 *
5 * - Help text and functions
6 */
7
8#include <stdio.h>
9
10#include "version.h"
11#include "compat.h"
12#include "config.h"
13#include "options.h"
14#include "cmd.h"
15#include "help.h"
16
17char *verboseUsage =
18"\n"
19"Description:\n"
20" When <exefile> <offset> are given, log2lines works like raddr2line:\n"
21" - The <exefile> <offset> combination can be repeated\n"
22" - Also, <offset> can be repeated for each <exefile>\n"
23" - NOTE: Some of the options below will have no effect in this form.\n"
24" Otherwise it reads stdin and tries to translate lines of the form:\n"
25" <IMAGENAME:ADDRESS>\n"
26" The result is written to stdout.\n\n"
27" <offset> or <ADDRESS> can be absolute or relative with the restrictions:\n"
28" - An image with base < 0x400000 MUST be relocated to a > 0x400000 address.\n"
29" - The offset of a relocated image MUST be relative.\n\n"
30" log2lines uses a cache in order to avoid a directory scan at each\n"
31" image lookup, greatly increasing performance. Only image path and its\n"
32" base address are cached.\n\n"
33"Options:\n"
34" -b Use this combined with '-l'. Enable buffering on logFile.\n"
35" This may solve loosing output on real hardware (ymmv).\n\n"
36" -c Console mode. Outputs text per character instead of per line.\n"
37" This is slightly slower but enables to see what you type.\n\n"
38" -d <directory>|<ISO image>\n"
39" <directory>: Directory to scan for images. (Do not append a '" PATH_STR "')\n"
40" <ISO image>: This option also takes an ISO image as argument:\n"
41" - The image is recognized by the '.iso' or '.7z' extension.\n"
42" - NOTE: The '.7z' and extracted '.iso' basenames must be identical,\n"
43" which is normally true for ReactOS trunk builds.\n"
44" - The image will be unpacked to a directory with the same name.\n"
45" - The embedded reactos.cab file will also be unpacked.\n"
46" - Combined with -f the file will be re-unpacked.\n"
47" - NOTE: this ISO unpack feature needs 7z to be in the PATH.\n"
48" Default: " DEF_OPT_DIR "\n\n"
49" -f Force creating new cache.\n\n"
50" -F As -f but exits immediately after creating cache.\n\n"
51" -h This text.\n\n"
52" -l <logFile>\n"
53" <logFile>: Append copy to specified logFile.\n"
54" Default: no logFile\n\n"
55" -L <logFile>\n"
56" <logFile>: (Over)write copy to specified logFile.\n"
57" Default: no logFile\n\n"
58" -m Prefix (mark) each translated line with '* '.\n\n"
59" -M Prefix (mark) each NOT translated line with '? '.\n"
60" ( Only for lines of the form: <IMAGENAME:ADDRESS> )\n\n"
61" -P <cmd line>\n"
62" Pipeline command line. Spawn <cmd line> and pipeline its output to\n"
63" log2lines (as stdin). This is for shells lacking support of (one of):\n"
64" - Input file redirection.\n"
65" - Pipelining byte streams, needed for the -c option.\n\n"
66" -r Raw output without translation.\n\n"
67" -s Statistics. A summary with the following info is printed after EOF:\n"
68" *** LOG2LINES SUMMARY ***\n"
69" - Translated: Translated lines.\n"
70" - Reverted: Lines translated back. See -u option\n"
71" - Retranslated: Lines retranslated. See -U option\n"
72" - Skipped: Lines not translated.\n"
73" - Differ: Lines where (addr-1) info differs. See -tT options\n"
74" - Differ(func/src):Lines where also function or source info differ.\n"
75" - Rev conflicts: Source files conflicting with build. See '-R check'\n"
76" - Reg candidates: Regression candidates. See '-R regscan'\n"
77" - Offset error: Image exists, but error retrieving offset info.\n"
78" - Total: Total number of lines attempted to translate.\n"
79" Also some version info is displayed.\n\n"
80" -S <context>[+<add>][,<sources>]\n"
81" Source line options:\n"
82" <context>: Source lines. Display up to <context> lines until linenumber.\n"
83" <add> : Optional. Display additional <add> lines after linenumber.\n"
84" <sources>: Optional. Specify alternate source tree.\n"
85" The environment variable " SOURCES_ENV " should be correctly set\n"
86" or specify <sources>. Use double quotes if the path contains spaces.\n"
87" For a reliable result, these sources should be up to date with\n"
88" the tested revision (or try '-R check').\n"
89" Can be combined with -tTR.\n"
90" Implies -U (For retrieving source info) and -R check.\n\n"
91" -t Translate twice. The address itself and for (address-1).\n"
92" Show extra filename, func and linenumber between [..] if they differ\n"
93" So if only the linenumbers differ, then only show the extra\n"
94" linenumber.\n\n"
95" -T As -t, but show only filename+func+linenumber for (address-1)\n\n"
96" -u Undo translations.\n"
97" Lines are translated back (reverted) to the form <IMAGENAME:ADDRESS>\n"
98" Also removes all lines previously added by this tool (e.g. see -S)\n\n"
99" -U Undo and reprocess.\n"
100" Reverted to the form <IMAGENAME:ADDRESS>, and then retranslated\n"
101" Implies -u.\n\n"
102" -v Show detailed errors and tracing.\n"
103" Repeating this option adds more verbosity.\n"
104" Default: only (major) errors\n\n"
105" -z <path to 7z>\n"
106" <path to 7z>: Specify path to 7z. See also option -d.\n"
107" Default: '7z'\n"
108"\n"
109"CLI escape commands:\n"
110" It is possible to change options and perform actions from the 'kdb:>' prompt\n"
111" By prepending the `(backquote) character to the option.\n"
112" Example: 'kdb:> `l new.log' changes the current logfile to 'new.log'.\n"
113" Flag options like 'b' are given a numeric value of 0 (off) or 1 (on).\n"
114" Options accepting a string as argument can be cleared by the value '" KDBG_ESC_OFF "'.\n"
115" Some ClI commands are read only or not (entirely) implemented.\n"
116" If no value is provided, the current one is printed.\n"
117" There are a few extra ClI commands or with different behaviour:\n"
118" - `a <module>:<reladdress>:\n"
119" - Outputs absolute address e.g. for setting breakpoints.\n"
120" - Do a 'mod' first to retrieve relocation info.\n"
121" - `h : shows this helptext (without exiting)\n"
122" - `q : quits log2lines\n"
123" - `s : the output is printed immediately\n"
124" - `s clear : clears all statistics.\n"
125" - `S : only <context> and <add> can be set.\n"
126" - `v <level> : sets the current debug loglevel\n"
127"\n"
128"Option Examples:\n"
129" Setup: A VMware machine with its serial port set to: '\\\\.\\pipe\\kdbg'.\n\n"
130" Just recreate cache after a svn update or a new module has been added:\n"
131" log2lines -F\n\n"
132" Use kdbg debugger via console (interactive):\n"
133" log2lines -c < \\\\.\\pipe\\kdbg\n\n"
134" Use kdbg debugger via console, and append copy to logFile:\n"
135" log2lines -c -l dbg.log < \\\\.\\pipe\\kdbg\n\n"
136" Same as above, but for PowerShell:\n"
137" log2lines -c -l dbg.log -P \"piperead -c \\\\.\\pipe\\kdbg\"\n\n"
138" Use kdbg debugger to send output to logfile:\n"
139" log2lines < \\\\.\\pipe\\kdbg > dbg.log\n\n"
140" Re-translate a debug log:\n"
141" log2lines -U -d bootcd-38701-dbg.iso < bugxxxx.log\n\n"
142" Re-translate a debug log. Specify a 7z file, which wil be decompressed.\n"
143" Also check for (address) - (address-1) differences:\n"
144" log2lines -U -t -d bootcd-38701-dbg.7z < bugxxxx.log\n"
145" Output:\n"
146" <ntdll.dll:60f1 (dll/ntdll/ldr/utils.c:337[331] (LdrPEStartup))>\n\n"
147" The following commands are equivalent:\n"
148" log2lines msi.dll 2e35d msi.dll 2235 msiexec.exe 30a8 msiexec.exe 2e89\n"
149" log2lines msi.dll 2e35d 2235 msiexec.exe 30a8 2e89\n\n"
150" Generate source lines from backtrace ('bt') output. Show 2 lines of context:\n"
151" log2lines -S 2 -d bootcd-38701-dbg.7z < bugxxxx.log\n"
152" Output:\n"
153" <msiexec.exe:2e89 (lib/3rdparty/mingw/crtexe.c:259 (__tmainCRTStartup))>\n"
154" | 0258 #else\n"
155" | 0259 mainret = main (\n"
156" <msiexec.exe:2fad (lib/3rdparty/mingw/crtexe.c:160 (WinMainCRTStartup))>\n"
157" | 0159 return __tmainCRTStartup ();\n"
158" | 0160 }\n\n"
159" Generate source lines. Show 2 lines of context plus 1 additional line and\n"
160" specify an alternate source tree:\n"
161" log2lines -S 2+1,\"c:\\ros trees\\r44000\" -d bootcd-44000-dbg < dbg.log\n"
162" Output:\n"
163" <msi.dll:2e35d (dll/win32/msi/msiquery.c:189 (MSI_IterateRecords))>\n"
164" | 0188 {\n"
165" | 0189 r = MSI_ViewFetch( view, &rec );\n"
166" | ----\n"
167" | 0190 if( r != ERROR_SUCCESS )\n\n"
168" Use '-R check' to show that action.c has been changed after the build:\n"
169" log2lines -s -d bootcd-43850-dbg.iso -R check -S 2 < dbg.log\n"
170" Output:\n"
171" <msi.dll:35821 (dll/win32/msi/registry.c:781 (MSIREG_OpenUserDataKey))>\n"
172" | 0780 if (create)\n"
173" | 0781 rc = RegCreateKeyW(HKEY_LOCAL_MACHINE, keypath, key);\n"
174" <msi.dll:5262 (dll/win32/msi/action.c:2665 (ACTION_ProcessComponents))>\n"
175" | R--- Conflict : source(44191) > build(43850)\n"
176" | 2664 else\n"
177" | 2665 rc = MSIREG_OpenUserDataKey(comp->ComponentId,\n\n"
178"CLI Examples: (some are based on the option examples above)\n"
179" Use '`R check' to show that action.c has been changed after the build:\n"
180" kdb:> `R check\n"
181" | L2L- -R is \"check\" (changed)\n"
182" kdb:> bt\n"
183" <msi.dll:35821 (dll/win32/msi/registry.c:781 (MSIREG_OpenUserDataKey))>\n"
184" | 0780 if (create)\n"
185" | 0781 rc = RegCreateKeyW(HKEY_LOCAL_MACHINE, keypath, key);\n"
186" <msi.dll:5262 (dll/win32/msi/action.c:2665 (ACTION_ProcessComponents))>\n"
187" | R--- Conflict : source(44191) > build(43850)\n"
188" | 2664 else\n"
189" | 2665 rc = MSIREG_OpenUserDataKey(comp->ComponentId,\n\n"
190" kdb:>\n\n"
191" Generate source lines. Show 2 lines of context plus 1 additional line.\n"
192" The -Uu options are dependent on -S:\n"
193" kdb:> `S 2+1\n"
194" | L2L- -u Undo is 1 (changed)\n"
195" | L2L- -U Undo and reprocess is 1 (changed)\n"
196" | L2L- -S Sources option is 2+1,\"C:\\ROS\\reactos\\\" \n"
197" | L2L- (Setting source tree not implemented)\n"
198" kdb:> bt\n"
199" <msi.dll:2e35d (dll/win32/msi/msiquery.c:189 (MSI_IterateRecords))>\n"
200" | 0188 {\n"
201" | 0189 r = MSI_ViewFetch( view, &rec );\n"
202" | ----\n"
203" | 0190 if( r != ERROR_SUCCESS )\n"
204" kdb:>\n\n"
205" Change logfile:\n"
206" kdb:> `l\n"
207" | L2L- -l logfile is "" (unchanged)\n"
208" kdb:> `l new.log\n"
209" | L2L- -l logfile is \"new.log\" (changed)\n"
210" kdb:> `l off\n"
211" | L2L- -l logfile is "" (changed)\n"
212" kdb:>\n\n"
213" Set a breakpoint with help of 'mod' and '`a':\n"
214" <msi.dll:2e35d (dll/win32/msi/msiquery.c:189 (MSI_IterateRecords))>\n"
215" kdb:> mod (for kernel tracing usually only needed once)\n"
216" -- mod output with reloc info\n"
217" kdb:> `a msi.dll:2e35d\n"
218" | L2L- Address: 0x00096ca0\n"
219" kdb:> bpx 0x00096ca0\n\n"
220"\n";
221
222void
223usage(int verbose)
224{
225 fprintf(stderr, "log2lines " LOG2LINES_VERSION "\n\n");
226 fprintf(stderr, "Usage: log2lines -%s {<exefile> <offset> {<offset>}}\n", optchars);
227 if (verbose)
228 fprintf(stderr, "%s", verboseUsage);
229 else
230 fprintf(stderr, "Try log2lines -h\n");
231}
232
233/* EOF */