9838b7032e
This is strictly the application of the script 'x-indent-all.sh' from util/modular. Compared to the patch that Daniel posted in January, I've added a few indent flags: -bap -psl -T PrivatePtr -T pmWait -T _XFUNCPROTOBEGIN -T _XFUNCPROTOEND -T _X_EXPORT The typedefs were needed to make the output of sdksyms.sh match the previous output, otherwise, the code is formatted badly enough that sdksyms.sh generates incorrect output. The generated code was compared with the previous version and found to be essentially identical -- "assert" line numbers and BUILD_TIME were the only differences found. The comparison was done with this script: dir1=$1 dir2=$2 for dir in $dir1 $dir2; do (cd $dir && find . -name '*.o' | while read file; do dir=`dirname $file` base=`basename $file .o` dump=$dir/$base.dump objdump -d $file > $dump done) done find $dir1 -name '*.dump' | while read dump; do otherdump=`echo $dump | sed "s;$dir1;$dir2;"` diff -u $dump $otherdump done Signed-off-by: Keith Packard <keithp@keithp.com> Acked-by: Daniel Stone <daniel@fooishbar.org> Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
1250 lines
38 KiB
C
1250 lines
38 KiB
C
/*
|
|
* Copyright 1995-1998 by Metro Link, Inc.
|
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*
|
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* Permission to use, copy, modify, distribute, and sell this software and its
|
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* documentation for any purpose is hereby granted without fee, provided that
|
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* the above copyright notice appear in all copies and that both that
|
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* copyright notice and this permission notice appear in supporting
|
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* documentation, and that the name of Metro Link, Inc. not be used in
|
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* advertising or publicity pertaining to distribution of the software without
|
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* specific, written prior permission. Metro Link, Inc. makes no
|
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* representations about the suitability of this software for any purpose.
|
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* It is provided "as is" without express or implied warranty.
|
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*
|
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* METRO LINK, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
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* EVENT SHALL METRO LINK, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
|
|
* Copyright (c) 1997-2002 by The XFree86 Project, Inc.
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*
|
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* Permission is hereby granted, free of charge, to any person obtaining a
|
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* copy of this software and associated documentation files (the "Software"),
|
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* to deal in the Software without restriction, including without limitation
|
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
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* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
|
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* all copies or substantial portions of the Software.
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*
|
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Except as contained in this notice, the name of the copyright holder(s)
|
|
* and author(s) shall not be used in advertising or otherwise to promote
|
|
* the sale, use or other dealings in this Software without prior written
|
|
* authorization from the copyright holder(s) and author(s).
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*/
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|
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#ifdef HAVE_XORG_CONFIG_H
|
|
#include <xorg-config.h>
|
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#endif
|
|
|
|
#include "os.h"
|
|
/* For stat() and related stuff */
|
|
#define NO_OSLIB_PROTOTYPES
|
|
#include "xf86_OSlib.h"
|
|
#define LOADERDECLARATIONS
|
|
#include "loaderProcs.h"
|
|
#include "misc.h"
|
|
#include "xf86.h"
|
|
#include "xf86Priv.h"
|
|
#include "xf86Xinput.h"
|
|
#include "loader.h"
|
|
#include "xf86Optrec.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <regex.h>
|
|
#include <dirent.h>
|
|
#include <limits.h>
|
|
|
|
typedef struct _pattern {
|
|
const char *pattern;
|
|
regex_t rex;
|
|
} PatternRec, *PatternPtr;
|
|
|
|
/* Prototypes for static functions */
|
|
static char *FindModule(const char *, const char *, const char **, PatternPtr);
|
|
static Bool CheckVersion(const char *, XF86ModuleVersionInfo *,
|
|
const XF86ModReqInfo *);
|
|
static void UnloadModuleOrDriver(ModuleDescPtr mod);
|
|
static char *LoaderGetCanonicalName(const char *, PatternPtr);
|
|
static void RemoveChild(ModuleDescPtr);
|
|
static ModuleDescPtr doLoadModule(const char *, const char *, const char **,
|
|
const char **, pointer,
|
|
const XF86ModReqInfo *, int *, int *);
|
|
|
|
const ModuleVersions LoaderVersionInfo = {
|
|
XORG_VERSION_CURRENT,
|
|
ABI_ANSIC_VERSION,
|
|
ABI_VIDEODRV_VERSION,
|
|
ABI_XINPUT_VERSION,
|
|
ABI_EXTENSION_VERSION,
|
|
ABI_FONT_VERSION
|
|
};
|
|
|
|
static int ModuleDuplicated[] = { };
|
|
|
|
static void
|
|
FreeStringList(char **paths)
|
|
{
|
|
char **p;
|
|
|
|
if (!paths)
|
|
return;
|
|
|
|
for (p = paths; *p; p++)
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free(*p);
|
|
|
|
free(paths);
|
|
}
|
|
|
|
static char **defaultPathList = NULL;
|
|
|
|
static Bool
|
|
PathIsAbsolute(const char *path)
|
|
{
|
|
return *path == '/';
|
|
}
|
|
|
|
/*
|
|
* Convert a comma-separated path into a NULL-terminated array of path
|
|
* elements, rejecting any that are not full absolute paths, and appending
|
|
* a '/' when it isn't already present.
|
|
*/
|
|
static char **
|
|
InitPathList(const char *path)
|
|
{
|
|
char *fullpath = NULL;
|
|
char *elem = NULL;
|
|
char **list = NULL, **save = NULL;
|
|
int len;
|
|
int addslash;
|
|
int n = 0;
|
|
|
|
if (!path)
|
|
return defaultPathList;
|
|
|
|
fullpath = strdup(path);
|
|
if (!fullpath)
|
|
return NULL;
|
|
elem = strtok(fullpath, ",");
|
|
while (elem) {
|
|
if (PathIsAbsolute(elem)) {
|
|
len = strlen(elem);
|
|
addslash = (elem[len - 1] != '/');
|
|
if (addslash)
|
|
len++;
|
|
save = list;
|
|
list = realloc(list, (n + 2) * sizeof(char *));
|
|
if (!list) {
|
|
if (save) {
|
|
save[n] = NULL;
|
|
FreeStringList(save);
|
|
}
|
|
free(fullpath);
|
|
return NULL;
|
|
}
|
|
list[n] = malloc(len + 1);
|
|
if (!list[n]) {
|
|
FreeStringList(list);
|
|
free(fullpath);
|
|
return NULL;
|
|
}
|
|
strcpy(list[n], elem);
|
|
if (addslash) {
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|
list[n][len - 1] = '/';
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list[n][len] = '\0';
|
|
}
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|
n++;
|
|
}
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|
elem = strtok(NULL, ",");
|
|
}
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if (list)
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|
list[n] = NULL;
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|
free(fullpath);
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|
return list;
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|
}
|
|
|
|
static void
|
|
FreePathList(char **pathlist)
|
|
{
|
|
if (pathlist && pathlist != defaultPathList)
|
|
FreeStringList(pathlist);
|
|
}
|
|
|
|
void
|
|
LoaderSetPath(const char *path)
|
|
{
|
|
if (!path)
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|
return;
|
|
|
|
defaultPathList = InitPathList(path);
|
|
}
|
|
|
|
/* Standard set of module subdirectories to search, in order of preference */
|
|
static const char *stdSubdirs[] = {
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"",
|
|
"input/",
|
|
"drivers/",
|
|
"multimedia/",
|
|
"extensions/",
|
|
"internal/",
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* Standard set of module name patterns to check, in order of preference
|
|
* These are regular expressions (suitable for use with POSIX regex(3)).
|
|
*
|
|
* This list assumes that you're an ELFish platform and therefore your
|
|
* shared libraries are named something.so. If we're ever nuts enough
|
|
* to port this DDX to, say, Darwin, we'll need to fix this.
|
|
*/
|
|
static PatternRec stdPatterns[] = {
|
|
{"^lib(.*)\\.so$",},
|
|
{"(.*)_drv\\.so$",},
|
|
{"(.*)\\.so$",},
|
|
{NULL,}
|
|
};
|
|
|
|
static PatternPtr
|
|
InitPatterns(const char **patternlist)
|
|
{
|
|
char errmsg[80];
|
|
int i, e;
|
|
PatternPtr patterns = NULL;
|
|
PatternPtr p = NULL;
|
|
static int firstTime = 1;
|
|
const char **s;
|
|
|
|
if (firstTime) {
|
|
/* precompile stdPatterns */
|
|
firstTime = 0;
|
|
for (p = stdPatterns; p->pattern; p++)
|
|
if ((e = regcomp(&p->rex, p->pattern, REG_EXTENDED)) != 0) {
|
|
regerror(e, &p->rex, errmsg, sizeof(errmsg));
|
|
FatalError("InitPatterns: regcomp error for `%s': %s\n",
|
|
p->pattern, errmsg);
|
|
}
|
|
}
|
|
|
|
if (patternlist) {
|
|
for (i = 0, s = patternlist; *s; i++, s++)
|
|
if (*s == DEFAULT_LIST)
|
|
i += sizeof(stdPatterns) / sizeof(stdPatterns[0]) - 1 - 1;
|
|
patterns = malloc((i + 1) * sizeof(PatternRec));
|
|
if (!patterns) {
|
|
return NULL;
|
|
}
|
|
for (i = 0, s = patternlist; *s; i++, s++)
|
|
if (*s != DEFAULT_LIST) {
|
|
p = patterns + i;
|
|
p->pattern = *s;
|
|
if ((e = regcomp(&p->rex, p->pattern, REG_EXTENDED)) != 0) {
|
|
regerror(e, &p->rex, errmsg, sizeof(errmsg));
|
|
ErrorF("InitPatterns: regcomp error for `%s': %s\n",
|
|
p->pattern, errmsg);
|
|
i--;
|
|
}
|
|
}
|
|
else {
|
|
for (p = stdPatterns; p->pattern; p++, i++)
|
|
patterns[i] = *p;
|
|
if (p != stdPatterns)
|
|
i--;
|
|
}
|
|
patterns[i].pattern = NULL;
|
|
}
|
|
else
|
|
patterns = stdPatterns;
|
|
return patterns;
|
|
}
|
|
|
|
static void
|
|
FreePatterns(PatternPtr patterns)
|
|
{
|
|
if (patterns && patterns != stdPatterns)
|
|
free(patterns);
|
|
}
|
|
|
|
static const char **
|
|
InitSubdirs(const char **subdirlist)
|
|
{
|
|
int i;
|
|
const char **tmp_subdirlist = NULL;
|
|
char **subdirs = NULL;
|
|
const char **s, **stmp = NULL;
|
|
const char *osname;
|
|
const char *slash;
|
|
int oslen = 0, len;
|
|
Bool indefault;
|
|
|
|
if (subdirlist == NULL) {
|
|
subdirlist = tmp_subdirlist = malloc(2 * sizeof(char *));
|
|
if (subdirlist == NULL)
|
|
return NULL;
|
|
subdirlist[0] = DEFAULT_LIST;
|
|
subdirlist[1] = NULL;
|
|
}
|
|
|
|
LoaderGetOS(&osname, NULL, NULL, NULL);
|
|
oslen = strlen(osname);
|
|
|
|
{
|
|
/* Count number of entries and check for invalid paths */
|
|
for (i = 0, s = subdirlist; *s; i++, s++) {
|
|
if (*s == DEFAULT_LIST) {
|
|
i += sizeof(stdSubdirs) / sizeof(stdSubdirs[0]) - 1 - 1;
|
|
}
|
|
else {
|
|
/*
|
|
* Path validity check. Don't allow absolute paths, or
|
|
* paths containing "..". To catch absolute paths on
|
|
* platforms that use driver letters, don't allow the ':'
|
|
* character to appear at all.
|
|
*/
|
|
if (**s == '/' || **s == '\\' || strchr(*s, ':') ||
|
|
strstr(*s, "..")) {
|
|
xf86Msg(X_ERROR, "InitSubdirs: Bad subdir: \"%s\"\n", *s);
|
|
free(tmp_subdirlist);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
subdirs = malloc((i * 2 + 1) * sizeof(char *));
|
|
if (!subdirs) {
|
|
free(tmp_subdirlist);
|
|
return NULL;
|
|
}
|
|
i = 0;
|
|
s = subdirlist;
|
|
indefault = FALSE;
|
|
while (*s) {
|
|
if (*s == DEFAULT_LIST) {
|
|
/* Divert to the default list */
|
|
indefault = TRUE;
|
|
stmp = ++s;
|
|
s = stdSubdirs;
|
|
}
|
|
len = strlen(*s);
|
|
if (**s && (*s)[len - 1] != '/') {
|
|
slash = "/";
|
|
len++;
|
|
}
|
|
else
|
|
slash = "";
|
|
len += oslen + 2;
|
|
if (!(subdirs[i] = malloc(len))) {
|
|
while (--i >= 0)
|
|
free(subdirs[i]);
|
|
free(subdirs);
|
|
free(tmp_subdirlist);
|
|
return NULL;
|
|
}
|
|
/* tack on the OS name */
|
|
sprintf(subdirs[i], "%s%s%s/", *s, slash, osname);
|
|
i++;
|
|
/* path as given */
|
|
subdirs[i] = strdup(*s);
|
|
i++;
|
|
s++;
|
|
if (indefault && !s) {
|
|
/* revert back to the main list */
|
|
indefault = FALSE;
|
|
s = stmp;
|
|
}
|
|
}
|
|
subdirs[i] = NULL;
|
|
}
|
|
free(tmp_subdirlist);
|
|
return (const char **) subdirs;
|
|
}
|
|
|
|
static void
|
|
FreeSubdirs(const char **subdirs)
|
|
{
|
|
const char **s;
|
|
|
|
if (subdirs) {
|
|
for (s = subdirs; *s; s++)
|
|
free((char *) *s);
|
|
free(subdirs);
|
|
}
|
|
}
|
|
|
|
static char *
|
|
FindModuleInSubdir(const char *dirpath, const char *module)
|
|
{
|
|
struct dirent *direntry = NULL;
|
|
DIR *dir = NULL;
|
|
char *ret = NULL, tmpBuf[PATH_MAX];
|
|
struct stat stat_buf;
|
|
|
|
dir = opendir(dirpath);
|
|
if (!dir)
|
|
return NULL;
|
|
|
|
while ((direntry = readdir(dir))) {
|
|
if (direntry->d_name[0] == '.')
|
|
continue;
|
|
snprintf(tmpBuf, PATH_MAX, "%s%s/", dirpath, direntry->d_name);
|
|
/* the stat with the appended / fails for normal files,
|
|
and works for sub dirs fine, looks a bit strange in strace
|
|
but does seem to work */
|
|
if ((stat(tmpBuf, &stat_buf) == 0) && S_ISDIR(stat_buf.st_mode)) {
|
|
if ((ret = FindModuleInSubdir(tmpBuf, module)))
|
|
break;
|
|
continue;
|
|
}
|
|
|
|
snprintf(tmpBuf, PATH_MAX, "lib%s.so", module);
|
|
if (strcmp(direntry->d_name, tmpBuf) == 0) {
|
|
if (asprintf(&ret, "%s%s", dirpath, tmpBuf) == -1)
|
|
ret = NULL;
|
|
break;
|
|
}
|
|
|
|
snprintf(tmpBuf, PATH_MAX, "%s_drv.so", module);
|
|
if (strcmp(direntry->d_name, tmpBuf) == 0) {
|
|
if (asprintf(&ret, "%s%s", dirpath, tmpBuf) == -1)
|
|
ret = NULL;
|
|
break;
|
|
}
|
|
|
|
snprintf(tmpBuf, PATH_MAX, "%s.so", module);
|
|
if (strcmp(direntry->d_name, tmpBuf) == 0) {
|
|
if (asprintf(&ret, "%s%s", dirpath, tmpBuf) == -1)
|
|
ret = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
closedir(dir);
|
|
return ret;
|
|
}
|
|
|
|
static char *
|
|
FindModule(const char *module, const char *dirname, const char **subdirlist,
|
|
PatternPtr patterns)
|
|
{
|
|
char buf[PATH_MAX + 1];
|
|
char *name = NULL;
|
|
const char **subdirs = NULL;
|
|
const char **s;
|
|
|
|
if (strlen(dirname) > PATH_MAX)
|
|
return NULL;
|
|
|
|
subdirs = InitSubdirs(subdirlist);
|
|
if (!subdirs)
|
|
return NULL;
|
|
|
|
for (s = subdirs; *s; s++) {
|
|
if ((strlen(dirname) + strlen(*s)) > PATH_MAX)
|
|
continue;
|
|
strcpy(buf, dirname);
|
|
strcat(buf, *s);
|
|
if ((name = FindModuleInSubdir(buf, module)))
|
|
break;
|
|
}
|
|
|
|
FreeSubdirs(subdirs);
|
|
|
|
return name;
|
|
}
|
|
|
|
char **
|
|
LoaderListDirs(const char **subdirlist, const char **patternlist)
|
|
{
|
|
char buf[PATH_MAX + 1];
|
|
char **pathlist;
|
|
char **elem;
|
|
const char **subdirs;
|
|
const char **s;
|
|
PatternPtr patterns;
|
|
PatternPtr p;
|
|
DIR *d;
|
|
struct dirent *dp;
|
|
regmatch_t match[2];
|
|
struct stat stat_buf;
|
|
int len, dirlen;
|
|
char *fp;
|
|
char **listing = NULL;
|
|
char **save;
|
|
char **ret = NULL;
|
|
int n = 0;
|
|
|
|
if (!(pathlist = InitPathList(NULL)))
|
|
return NULL;
|
|
if (!(subdirs = InitSubdirs(subdirlist)))
|
|
goto bail;
|
|
if (!(patterns = InitPatterns(patternlist)))
|
|
goto bail;
|
|
|
|
for (elem = pathlist; *elem; elem++) {
|
|
for (s = subdirs; *s; s++) {
|
|
if ((dirlen = strlen(*elem) + strlen(*s)) > PATH_MAX)
|
|
continue;
|
|
strcpy(buf, *elem);
|
|
strcat(buf, *s);
|
|
fp = buf + dirlen;
|
|
if (stat(buf, &stat_buf) == 0 && S_ISDIR(stat_buf.st_mode) &&
|
|
(d = opendir(buf))) {
|
|
if (buf[dirlen - 1] != '/') {
|
|
buf[dirlen++] = '/';
|
|
fp++;
|
|
}
|
|
while ((dp = readdir(d))) {
|
|
if (dirlen + strlen(dp->d_name) > PATH_MAX)
|
|
continue;
|
|
strcpy(fp, dp->d_name);
|
|
if (!(stat(buf, &stat_buf) == 0 &&
|
|
S_ISREG(stat_buf.st_mode)))
|
|
continue;
|
|
for (p = patterns; p->pattern; p++) {
|
|
if (regexec(&p->rex, dp->d_name, 2, match, 0) == 0 &&
|
|
match[1].rm_so != -1) {
|
|
len = match[1].rm_eo - match[1].rm_so;
|
|
save = listing;
|
|
listing = realloc(listing,
|
|
(n + 2) * sizeof(char *));
|
|
if (!listing) {
|
|
if (save) {
|
|
save[n] = NULL;
|
|
FreeStringList(save);
|
|
}
|
|
closedir(d);
|
|
goto bail;
|
|
}
|
|
listing[n] = malloc(len + 1);
|
|
if (!listing[n]) {
|
|
FreeStringList(listing);
|
|
closedir(d);
|
|
goto bail;
|
|
}
|
|
strncpy(listing[n], dp->d_name + match[1].rm_so,
|
|
len);
|
|
listing[n][len] = '\0';
|
|
n++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
closedir(d);
|
|
}
|
|
}
|
|
}
|
|
if (listing)
|
|
listing[n] = NULL;
|
|
ret = listing;
|
|
|
|
bail:
|
|
FreePatterns(patterns);
|
|
FreeSubdirs(subdirs);
|
|
FreePathList(pathlist);
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
LoaderFreeDirList(char **list)
|
|
{
|
|
FreeStringList(list);
|
|
}
|
|
|
|
static Bool
|
|
CheckVersion(const char *module, XF86ModuleVersionInfo * data,
|
|
const XF86ModReqInfo * req)
|
|
{
|
|
int vercode[4];
|
|
char verstr[4];
|
|
long ver = data->xf86version;
|
|
MessageType errtype;
|
|
|
|
xf86Msg(X_INFO, "Module %s: vendor=\"%s\"\n",
|
|
data->modname ? data->modname : "UNKNOWN!",
|
|
data->vendor ? data->vendor : "UNKNOWN!");
|
|
|
|
/* Check for the different scheme used in XFree86 4.0.x releases:
|
|
* ((((((((major << 7) | minor) << 7) | subminor) << 5) | beta) << 5) | alpha)
|
|
* Since it wasn't used in 4.1.0 or later, limit to versions in the 4.0.x
|
|
* range, which limits the overlap with the new version scheme to conflicts
|
|
* with 6.71.8.764 through 6.72.39.934.
|
|
*/
|
|
if ((ver > (4 << 24)) && (ver < ((4 << 24) + (1 << 17)))) {
|
|
/* 4.0.x and earlier */
|
|
verstr[1] = verstr[3] = 0;
|
|
verstr[2] = (ver & 0x1f) ? (ver & 0x1f) + 'a' - 1 : 0;
|
|
ver >>= 5;
|
|
verstr[0] = (ver & 0x1f) ? (ver & 0x1f) + 'A' - 1 : 0;
|
|
ver >>= 5;
|
|
vercode[2] = ver & 0x7f;
|
|
ver >>= 7;
|
|
vercode[1] = ver & 0x7f;
|
|
ver >>= 7;
|
|
vercode[0] = ver;
|
|
xf86ErrorF("\tcompiled for %d.%d", vercode[0], vercode[1]);
|
|
if (vercode[2] != 0)
|
|
xf86ErrorF(".%d", vercode[2]);
|
|
xf86ErrorF("%s%s, module version = %d.%d.%d\n", verstr, verstr + 2,
|
|
data->majorversion, data->minorversion, data->patchlevel);
|
|
}
|
|
else {
|
|
vercode[0] = ver / 10000000;
|
|
vercode[1] = (ver / 100000) % 100;
|
|
vercode[2] = (ver / 1000) % 100;
|
|
vercode[3] = ver % 1000;
|
|
xf86ErrorF("\tcompiled for %d.%d.%d", vercode[0], vercode[1],
|
|
vercode[2]);
|
|
if (vercode[3] != 0)
|
|
xf86ErrorF(".%d", vercode[3]);
|
|
xf86ErrorF(", module version = %d.%d.%d\n", data->majorversion,
|
|
data->minorversion, data->patchlevel);
|
|
}
|
|
|
|
if (data->moduleclass)
|
|
xf86ErrorFVerb(2, "\tModule class: %s\n", data->moduleclass);
|
|
|
|
ver = -1;
|
|
if (data->abiclass) {
|
|
int abimaj, abimin;
|
|
int vermaj, vermin;
|
|
|
|
if (!strcmp(data->abiclass, ABI_CLASS_ANSIC))
|
|
ver = LoaderVersionInfo.ansicVersion;
|
|
else if (!strcmp(data->abiclass, ABI_CLASS_VIDEODRV))
|
|
ver = LoaderVersionInfo.videodrvVersion;
|
|
else if (!strcmp(data->abiclass, ABI_CLASS_XINPUT))
|
|
ver = LoaderVersionInfo.xinputVersion;
|
|
else if (!strcmp(data->abiclass, ABI_CLASS_EXTENSION))
|
|
ver = LoaderVersionInfo.extensionVersion;
|
|
else if (!strcmp(data->abiclass, ABI_CLASS_FONT))
|
|
ver = LoaderVersionInfo.fontVersion;
|
|
|
|
abimaj = GET_ABI_MAJOR(data->abiversion);
|
|
abimin = GET_ABI_MINOR(data->abiversion);
|
|
xf86ErrorFVerb(2, "\tABI class: %s, version %d.%d\n",
|
|
data->abiclass, abimaj, abimin);
|
|
if (ver != -1) {
|
|
vermaj = GET_ABI_MAJOR(ver);
|
|
vermin = GET_ABI_MINOR(ver);
|
|
if (abimaj != vermaj) {
|
|
if (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL)
|
|
errtype = X_WARNING;
|
|
else
|
|
errtype = X_ERROR;
|
|
xf86MsgVerb(errtype, 0,
|
|
"module ABI major version (%d) doesn't"
|
|
" match the server's version (%d)\n",
|
|
abimaj, vermaj);
|
|
if (!(LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL))
|
|
return FALSE;
|
|
}
|
|
else if (abimin > vermin) {
|
|
if (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL)
|
|
errtype = X_WARNING;
|
|
else
|
|
errtype = X_ERROR;
|
|
xf86MsgVerb(errtype, 0,
|
|
"module ABI minor version (%d) is "
|
|
"newer than the server's version "
|
|
"(%d)\n", abimin, vermin);
|
|
if (!(LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL))
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check against requirements that the caller has specified */
|
|
if (req) {
|
|
if (req->majorversion != MAJOR_UNSPEC) {
|
|
if (data->majorversion != req->majorversion) {
|
|
xf86MsgVerb(X_WARNING, 2, "module major version (%d) "
|
|
"doesn't match required major version (%d)\n",
|
|
data->majorversion, req->majorversion);
|
|
return FALSE;
|
|
}
|
|
else if (req->minorversion != MINOR_UNSPEC) {
|
|
if (data->minorversion < req->minorversion) {
|
|
xf86MsgVerb(X_WARNING, 2, "module minor version (%d) "
|
|
"is less than the required minor version (%d)\n",
|
|
data->minorversion, req->minorversion);
|
|
return FALSE;
|
|
}
|
|
else if (data->minorversion == req->minorversion &&
|
|
req->patchlevel != PATCH_UNSPEC) {
|
|
if (data->patchlevel < req->patchlevel) {
|
|
xf86MsgVerb(X_WARNING, 2, "module patch level (%d) "
|
|
"is less than the required patch level (%d)\n",
|
|
data->patchlevel, req->patchlevel);
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (req->moduleclass) {
|
|
if (!data->moduleclass ||
|
|
strcmp(req->moduleclass, data->moduleclass)) {
|
|
xf86MsgVerb(X_WARNING, 2, "Module class (%s) doesn't match "
|
|
"the required class (%s)\n",
|
|
data->moduleclass ? data->moduleclass : "<NONE>",
|
|
req->moduleclass);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else if (req->abiclass != ABI_CLASS_NONE) {
|
|
if (!data->abiclass || strcmp(req->abiclass, data->abiclass)) {
|
|
xf86MsgVerb(X_WARNING, 2, "ABI class (%s) doesn't match the "
|
|
"required ABI class (%s)\n",
|
|
data->abiclass ? data->abiclass : "<NONE>",
|
|
req->abiclass);
|
|
return FALSE;
|
|
}
|
|
}
|
|
if ((req->abiclass != ABI_CLASS_NONE) &&
|
|
req->abiversion != ABI_VERS_UNSPEC) {
|
|
int reqmaj, reqmin, maj, min;
|
|
|
|
reqmaj = GET_ABI_MAJOR(req->abiversion);
|
|
reqmin = GET_ABI_MINOR(req->abiversion);
|
|
maj = GET_ABI_MAJOR(data->abiversion);
|
|
min = GET_ABI_MINOR(data->abiversion);
|
|
if (maj != reqmaj) {
|
|
xf86MsgVerb(X_WARNING, 2, "ABI major version (%d) doesn't "
|
|
"match the required ABI major version (%d)\n",
|
|
maj, reqmaj);
|
|
return FALSE;
|
|
}
|
|
/* XXX Maybe this should be the other way around? */
|
|
if (min > reqmin) {
|
|
xf86MsgVerb(X_WARNING, 2, "module ABI minor version (%d) "
|
|
"is newer than that available (%d)\n", min, reqmin);
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static ModuleDescPtr
|
|
AddSibling(ModuleDescPtr head, ModuleDescPtr new)
|
|
{
|
|
new->sib = head;
|
|
return new;
|
|
}
|
|
|
|
pointer
|
|
LoadSubModule(pointer _parent, const char *module,
|
|
const char **subdirlist, const char **patternlist,
|
|
pointer options, const XF86ModReqInfo * modreq,
|
|
int *errmaj, int *errmin)
|
|
{
|
|
ModuleDescPtr submod;
|
|
ModuleDescPtr parent = (ModuleDescPtr) _parent;
|
|
|
|
xf86MsgVerb(X_INFO, 3, "Loading sub module \"%s\"\n", module);
|
|
|
|
if (PathIsAbsolute(module)) {
|
|
xf86Msg(X_ERROR,
|
|
"LoadSubModule: Absolute module path not permitted: \"%s\"\n",
|
|
module);
|
|
if (errmaj)
|
|
*errmaj = LDR_BADUSAGE;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
return NULL;
|
|
}
|
|
|
|
submod = doLoadModule(module, NULL, subdirlist, patternlist, options,
|
|
modreq, errmaj, errmin);
|
|
if (submod && submod != (ModuleDescPtr) 1) {
|
|
parent->child = AddSibling(parent->child, submod);
|
|
submod->parent = parent;
|
|
}
|
|
return submod;
|
|
}
|
|
|
|
static ModuleDescPtr
|
|
NewModuleDesc(const char *name)
|
|
{
|
|
ModuleDescPtr mdp = calloc(1, sizeof(ModuleDesc));
|
|
|
|
if (mdp)
|
|
mdp->name = xstrdup(name);
|
|
|
|
return mdp;
|
|
}
|
|
|
|
ModuleDescPtr
|
|
DuplicateModule(ModuleDescPtr mod, ModuleDescPtr parent)
|
|
{
|
|
ModuleDescPtr ret;
|
|
|
|
if (!mod)
|
|
return NULL;
|
|
|
|
ret = NewModuleDesc(mod->name);
|
|
if (ret == NULL)
|
|
return NULL;
|
|
|
|
ret->handle = mod->handle;
|
|
|
|
ret->SetupProc = mod->SetupProc;
|
|
ret->TearDownProc = mod->TearDownProc;
|
|
ret->TearDownData = ModuleDuplicated;
|
|
ret->child = DuplicateModule(mod->child, ret);
|
|
ret->sib = DuplicateModule(mod->sib, parent);
|
|
ret->parent = parent;
|
|
ret->VersionInfo = mod->VersionInfo;
|
|
ret->path = strdup(mod->path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const char *compiled_in_modules[] = {
|
|
"ddc",
|
|
"i2c",
|
|
"ramdac",
|
|
NULL
|
|
};
|
|
|
|
static ModuleDescPtr
|
|
doLoadModule(const char *module, const char *path, const char **subdirlist,
|
|
const char **patternlist, pointer options,
|
|
const XF86ModReqInfo * modreq, int *errmaj, int *errmin)
|
|
{
|
|
XF86ModuleData *initdata = NULL;
|
|
char **pathlist = NULL;
|
|
char *found = NULL;
|
|
char *name = NULL;
|
|
char **path_elem = NULL;
|
|
char *p = NULL;
|
|
ModuleDescPtr ret = NULL;
|
|
PatternPtr patterns = NULL;
|
|
int noncanonical = 0;
|
|
char *m = NULL;
|
|
const char **cim;
|
|
|
|
xf86MsgVerb(X_INFO, 3, "LoadModule: \"%s\"", module);
|
|
|
|
patterns = InitPatterns(patternlist);
|
|
name = LoaderGetCanonicalName(module, patterns);
|
|
noncanonical = (name && strcmp(module, name) != 0);
|
|
if (noncanonical) {
|
|
xf86ErrorFVerb(3, " (%s)\n", name);
|
|
xf86MsgVerb(X_WARNING, 1,
|
|
"LoadModule: given non-canonical module name \"%s\"\n",
|
|
module);
|
|
m = name;
|
|
}
|
|
else {
|
|
xf86ErrorFVerb(3, "\n");
|
|
m = (char *) module;
|
|
}
|
|
|
|
for (cim = compiled_in_modules; *cim; cim++)
|
|
if (!strcmp(m, *cim)) {
|
|
xf86MsgVerb(X_INFO, 3, "Module \"%s\" already built-in\n", m);
|
|
ret = (ModuleDescPtr) 1;
|
|
goto LoadModule_exit;
|
|
}
|
|
|
|
if (!name) {
|
|
if (errmaj)
|
|
*errmaj = LDR_BADUSAGE;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
ret = NewModuleDesc(name);
|
|
if (!ret) {
|
|
if (errmaj)
|
|
*errmaj = LDR_NOMEM;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
|
|
pathlist = InitPathList(path);
|
|
if (!pathlist) {
|
|
/* This could be a malloc failure too */
|
|
if (errmaj)
|
|
*errmaj = LDR_BADUSAGE;
|
|
if (errmin)
|
|
*errmin = 1;
|
|
goto LoadModule_fail;
|
|
}
|
|
|
|
/*
|
|
* if the module name is not a full pathname, we need to
|
|
* check the elements in the path
|
|
*/
|
|
if (PathIsAbsolute(module))
|
|
found = xstrdup(module);
|
|
path_elem = pathlist;
|
|
while (!found && *path_elem != NULL) {
|
|
found = FindModule(m, *path_elem, subdirlist, patterns);
|
|
path_elem++;
|
|
/*
|
|
* When the module name isn't the canonical name, search for the
|
|
* former if no match was found for the latter.
|
|
*/
|
|
if (!*path_elem && m == name) {
|
|
path_elem = pathlist;
|
|
m = (char *) module;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* did we find the module?
|
|
*/
|
|
if (!found) {
|
|
xf86Msg(X_WARNING, "Warning, couldn't open module %s\n", module);
|
|
if (errmaj)
|
|
*errmaj = LDR_NOENT;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
ret->handle = LoaderOpen(found, errmaj, errmin);
|
|
if (ret->handle == NULL)
|
|
goto LoadModule_fail;
|
|
ret->path = strdup(found);
|
|
|
|
/* drop any explicit suffix from the module name */
|
|
p = strchr(name, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
/*
|
|
* now check if the special data object <modulename>ModuleData is
|
|
* present.
|
|
*/
|
|
if (asprintf(&p, "%sModuleData", name) == -1) {
|
|
p = NULL;
|
|
if (errmaj)
|
|
*errmaj = LDR_NOMEM;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
initdata = LoaderSymbol(p);
|
|
if (initdata) {
|
|
ModuleSetupProc setup;
|
|
ModuleTearDownProc teardown;
|
|
XF86ModuleVersionInfo *vers;
|
|
|
|
vers = initdata->vers;
|
|
setup = initdata->setup;
|
|
teardown = initdata->teardown;
|
|
|
|
if (vers) {
|
|
if (!CheckVersion(module, vers, modreq)) {
|
|
if (errmaj)
|
|
*errmaj = LDR_MISMATCH;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
}
|
|
else {
|
|
xf86Msg(X_ERROR,
|
|
"LoadModule: Module %s does not supply"
|
|
" version information\n", module);
|
|
if (errmaj)
|
|
*errmaj = LDR_INVALID;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
if (setup)
|
|
ret->SetupProc = setup;
|
|
if (teardown)
|
|
ret->TearDownProc = teardown;
|
|
ret->VersionInfo = vers;
|
|
}
|
|
else {
|
|
/* No initdata is OK for external modules */
|
|
if (options == EXTERN_MODULE)
|
|
goto LoadModule_exit;
|
|
|
|
/* no initdata, fail the load */
|
|
xf86Msg(X_ERROR, "LoadModule: Module %s does not have a %s "
|
|
"data object.\n", module, p);
|
|
if (errmaj)
|
|
*errmaj = LDR_INVALID;
|
|
if (errmin)
|
|
*errmin = 0;
|
|
goto LoadModule_fail;
|
|
}
|
|
if (ret->SetupProc) {
|
|
ret->TearDownData = ret->SetupProc(ret, options, errmaj, errmin);
|
|
if (!ret->TearDownData) {
|
|
goto LoadModule_fail;
|
|
}
|
|
}
|
|
else if (options) {
|
|
xf86Msg(X_WARNING, "Module Options present, but no SetupProc "
|
|
"available for %s\n", module);
|
|
}
|
|
goto LoadModule_exit;
|
|
|
|
LoadModule_fail:
|
|
UnloadModule(ret);
|
|
ret = NULL;
|
|
|
|
LoadModule_exit:
|
|
FreePathList(pathlist);
|
|
FreePatterns(patterns);
|
|
free(found);
|
|
free(name);
|
|
free(p);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* LoadModule: load a module
|
|
*
|
|
* module The module name. Normally this is not a filename but the
|
|
* module's "canonical name. A full pathname is, however,
|
|
* also accepted.
|
|
* path A comma separated list of module directories.
|
|
* subdirlist A NULL terminated list of subdirectories to search. When
|
|
* NULL, the default "stdSubdirs" list is used. The default
|
|
* list is also substituted for entries with value DEFAULT_LIST.
|
|
* patternlist A NULL terminated list of regular expressions used to find
|
|
* module filenames. Each regex should contain exactly one
|
|
* subexpression that corresponds to the canonical module name.
|
|
* When NULL, the default "stdPatterns" list is used. The
|
|
* default list is also substituted for entries with value
|
|
* DEFAULT_LIST.
|
|
* options A NULL terminated list of Options that are passed to the
|
|
* module's SetupProc function.
|
|
* modreq An optional XF86ModReqInfo* containing
|
|
* version/ABI/vendor-ABI requirements to check for when
|
|
* loading the module. The following fields of the
|
|
* XF86ModReqInfo struct are checked:
|
|
* majorversion - must match the module's majorversion exactly
|
|
* minorversion - the module's minorversion must be >= this
|
|
* patchlevel - the module's minorversion.patchlevel must be
|
|
* >= this. Patchlevel is ignored when
|
|
* minorversion is not set.
|
|
* abiclass - (string) must match the module's abiclass
|
|
* abiversion - must be consistent with the module's
|
|
* abiversion (major equal, minor no older)
|
|
* moduleclass - string must match the module's moduleclass
|
|
* string
|
|
* "don't care" values are ~0 for numbers, and NULL for strings
|
|
* errmaj Major error return.
|
|
* errmin Minor error return.
|
|
*
|
|
*/
|
|
ModuleDescPtr
|
|
LoadModule(const char *module, const char *path, const char **subdirlist,
|
|
const char **patternlist, pointer options,
|
|
const XF86ModReqInfo * modreq, int *errmaj, int *errmin)
|
|
{
|
|
return doLoadModule(module, path, subdirlist, patternlist, options,
|
|
modreq, errmaj, errmin);
|
|
}
|
|
|
|
void
|
|
UnloadModule(pointer mod)
|
|
{
|
|
UnloadModuleOrDriver((ModuleDescPtr) mod);
|
|
}
|
|
|
|
static void
|
|
UnloadModuleOrDriver(ModuleDescPtr mod)
|
|
{
|
|
if (mod == (ModuleDescPtr) 1)
|
|
return;
|
|
|
|
if (mod == NULL || mod->name == NULL)
|
|
return;
|
|
|
|
if (mod->parent)
|
|
xf86MsgVerb(X_INFO, 3, "UnloadSubModule: \"%s\"\n", mod->name);
|
|
else
|
|
xf86MsgVerb(X_INFO, 3, "UnloadModule: \"%s\"\n", mod->name);
|
|
|
|
if (mod->TearDownData != ModuleDuplicated) {
|
|
if ((mod->TearDownProc) && (mod->TearDownData))
|
|
mod->TearDownProc(mod->TearDownData);
|
|
LoaderUnload(mod->name, mod->handle);
|
|
}
|
|
|
|
if (mod->child)
|
|
UnloadModuleOrDriver(mod->child);
|
|
if (mod->sib)
|
|
UnloadModuleOrDriver(mod->sib);
|
|
free(mod->path);
|
|
free(mod->name);
|
|
free(mod);
|
|
}
|
|
|
|
void
|
|
UnloadSubModule(pointer _mod)
|
|
{
|
|
ModuleDescPtr mod = (ModuleDescPtr) _mod;
|
|
|
|
/* Some drivers are calling us on built-in submodules, ignore them */
|
|
if (mod == (ModuleDescPtr) 1)
|
|
return;
|
|
RemoveChild(mod);
|
|
UnloadModuleOrDriver(mod);
|
|
}
|
|
|
|
static void
|
|
RemoveChild(ModuleDescPtr child)
|
|
{
|
|
ModuleDescPtr mdp;
|
|
ModuleDescPtr prevsib;
|
|
ModuleDescPtr parent;
|
|
|
|
if (!child->parent)
|
|
return;
|
|
|
|
parent = child->parent;
|
|
if (parent->child == child) {
|
|
parent->child = child->sib;
|
|
return;
|
|
}
|
|
|
|
prevsib = parent->child;
|
|
mdp = prevsib->sib;
|
|
while (mdp && mdp != child) {
|
|
prevsib = mdp;
|
|
mdp = mdp->sib;
|
|
}
|
|
if (mdp == child)
|
|
prevsib->sib = child->sib;
|
|
child->sib = NULL;
|
|
return;
|
|
}
|
|
|
|
void
|
|
LoaderErrorMsg(const char *name, const char *modname, int errmaj, int errmin)
|
|
{
|
|
const char *msg;
|
|
MessageType type = X_ERROR;
|
|
|
|
switch (errmaj) {
|
|
case LDR_NOERROR:
|
|
msg = "no error";
|
|
break;
|
|
case LDR_NOMEM:
|
|
msg = "out of memory";
|
|
break;
|
|
case LDR_NOENT:
|
|
msg = "module does not exist";
|
|
break;
|
|
case LDR_NOSUBENT:
|
|
msg = "a required submodule could not be loaded";
|
|
break;
|
|
case LDR_NOSPACE:
|
|
msg = "too many modules";
|
|
break;
|
|
case LDR_NOMODOPEN:
|
|
msg = "open failed";
|
|
break;
|
|
case LDR_UNKTYPE:
|
|
msg = "unknown module type";
|
|
break;
|
|
case LDR_NOLOAD:
|
|
msg = "loader failed";
|
|
break;
|
|
case LDR_ONCEONLY:
|
|
msg = "already loaded";
|
|
type = X_INFO;
|
|
break;
|
|
case LDR_NOPORTOPEN:
|
|
msg = "port open failed";
|
|
break;
|
|
case LDR_NOHARDWARE:
|
|
msg = "no hardware found";
|
|
break;
|
|
case LDR_MISMATCH:
|
|
msg = "module requirement mismatch";
|
|
break;
|
|
case LDR_BADUSAGE:
|
|
msg = "invalid argument(s) to LoadModule()";
|
|
break;
|
|
case LDR_INVALID:
|
|
msg = "invalid module";
|
|
break;
|
|
case LDR_BADOS:
|
|
msg = "module doesn't support this OS";
|
|
break;
|
|
case LDR_MODSPECIFIC:
|
|
msg = "module-specific error";
|
|
break;
|
|
default:
|
|
msg = "unknown error";
|
|
}
|
|
if (name)
|
|
xf86Msg(type, "%s: Failed to load module \"%s\" (%s, %d)\n",
|
|
name, modname, msg, errmin);
|
|
else
|
|
xf86Msg(type, "Failed to load module \"%s\" (%s, %d)\n",
|
|
modname, msg, errmin);
|
|
}
|
|
|
|
/* Given a module path or file name, return the module's canonical name */
|
|
static char *
|
|
LoaderGetCanonicalName(const char *modname, PatternPtr patterns)
|
|
{
|
|
char *str;
|
|
const char *s;
|
|
int len;
|
|
PatternPtr p;
|
|
regmatch_t match[2];
|
|
|
|
/* Strip off any leading path */
|
|
s = strrchr(modname, '/');
|
|
if (s == NULL)
|
|
s = modname;
|
|
else
|
|
s++;
|
|
|
|
/* Find the first regex that is matched */
|
|
for (p = patterns; p->pattern; p++)
|
|
if (regexec(&p->rex, s, 2, match, 0) == 0 && match[1].rm_so != -1) {
|
|
len = match[1].rm_eo - match[1].rm_so;
|
|
str = malloc(len + 1);
|
|
if (!str)
|
|
return NULL;
|
|
strncpy(str, s + match[1].rm_so, len);
|
|
str[len] = '\0';
|
|
return str;
|
|
}
|
|
|
|
/* If there is no match, return the whole name minus the leading path */
|
|
return strdup(s);
|
|
}
|
|
|
|
/*
|
|
* Return the module version information.
|
|
*/
|
|
unsigned long
|
|
LoaderGetModuleVersion(ModuleDescPtr mod)
|
|
{
|
|
if (!mod || mod == (ModuleDescPtr) 1 || !mod->VersionInfo)
|
|
return 0;
|
|
|
|
return MODULE_VERSION_NUMERIC(mod->VersionInfo->majorversion,
|
|
mod->VersionInfo->minorversion,
|
|
mod->VersionInfo->patchlevel);
|
|
}
|