projects/guix·blob java-team · refs

168 lines · 5.0 KiB

1This patch changes 'modprobe' & co. so they honor the 'LINUX_MODULE_DIRECTORY'
2environment variable, rather than looking for modules exclusively in
3/lib/modules.
4
5Original patch by David Guibert, from Nixpkgs; adjusted to use
6'LINUX_MODULE_DIRECTORY' rather than 'MODULE_DIR' as the variable name.
7
8diff --git a/depmod.c b/depmod.c
9index a1d2f8c..ff579c7 100644
10--- a/depmod.c
11+++ b/depmod.c
12@@ -48,9 +48,6 @@
13
14 #include "testing.h"
15
16-#ifndef MODULE_DIR
17-#define MODULE_DIR "/lib/modules/"
18-#endif
19
20 #ifndef MODULE_BUILTIN_KEY
21 #define MODULE_BUILTIN_KEY "built-in"
22@@ -1516,6 +1513,7 @@ static int parse_config_file(const char *filename,
23 char *line;
24 unsigned int linenum = 0;
25 FILE *cfile;
26+ char *module_dir;
27
28 cfile = fopen(filename, "r");
29 if (!cfile) {
30@@ -1525,6 +1523,10 @@ static int parse_config_file(const char *filename,
31 return 0;
32 }
33
34+ if((module_dir = getenv("LINUX_MODULE_DIRECTORY")) == NULL) {
35+ module_dir = "/lib/modules";
36+ }
37+
38 while ((line = getline_wrapped(cfile, &linenum)) != NULL) {
39 char *ptr = line;
40 char *cmd, *modname;
41@@ -1549,8 +1551,8 @@ static int parse_config_file(const char *filename,
42 0, *search);
43 continue;
44 }
45- nofail_asprintf(&dirname, "%s%s%s/%s", basedir,
46- MODULE_DIR, kernelversion, search_path);
47+ nofail_asprintf(&dirname, "%s%s/%s/%s", basedir,
48+ module_dir, kernelversion, search_path);
49 len = strlen(dirname);
50 *search = add_search(dirname, len, *search);
51 free(dirname);
52@@ -1564,8 +1566,8 @@ static int parse_config_file(const char *filename,
53 if (!regex_match(kernelversion, (const char *)version))
54 continue;
55
56- nofail_asprintf(&pathname, "%s%s%s/%s/%s.ko", basedir,
57- MODULE_DIR, kernelversion, subdir, modname);
58+ nofail_asprintf(&pathname, "%s%s/%s/%s/%s.ko", basedir,
59+ module_dir, kernelversion, subdir, modname);
60
61 *overrides = add_override(pathname, *overrides);
62 free(pathname);
63@@ -1737,6 +1739,7 @@ int main(int argc, char *argv[])
64 char *basedir = "", *dirname, *version;
65 char *system_map = NULL, *module_symvers = NULL;
66 int i;
67+ char *module_dir;
68 const char *config = NULL;
69
70 if (native_endianness() == 0)
71@@ -1832,7 +1835,11 @@ int main(int argc, char *argv[])
72 if (optind == argc)
73 all = 1;
74
75- nofail_asprintf(&dirname, "%s%s%s", basedir, MODULE_DIR, version);
76+ if((module_dir = getenv("LINUX_MODULE_DIRECTORY")) == NULL) {
77+ module_dir = "/lib/modules";
78+ }
79+
80+ nofail_asprintf(&dirname, "%s%s/%s", basedir, module_dir, version);
81
82 if (maybe_all) {
83 if (!doing_stdout && !depfile_out_of_date(dirname))
84@@ -1849,8 +1856,8 @@ int main(int argc, char *argv[])
85 char *dirname;
86 size_t len;
87
88- nofail_asprintf(&dirname, "%s%s%s/updates", basedir,
89- MODULE_DIR, version);
90+ nofail_asprintf(&dirname, "%s%s/%s/updates", basedir,
91+ module_dir, version);
92 len = strlen(dirname);
93 search = add_search(dirname, len, search);
94 }
95diff --git a/modinfo.c b/modinfo.c
96index 1dd8469..6a1865b 100644
97--- a/modinfo.c
98+++ b/modinfo.c
99@@ -19,9 +19,6 @@
100 #include "zlibsupport.h"
101 #include "testing.h"
102
103-#ifndef MODULE_DIR
104-#define MODULE_DIR "/lib/modules"
105-#endif
106
107 struct param
108 {
109@@ -193,6 +190,11 @@ static struct elf_file *grab_module(const char *name,
110 struct utsname buf;
111 char *depname, *p, *moddir;
112 struct elf_file *module;
113+ char *module_dir;
114+
115+ if((module_dir = getenv("LINUX_MODULE_DIRECTORY")) == NULL) {
116+ module_dir = "/lib/modules";
117+ }
118
119 if (strchr(name, '.') || strchr(name, '/')) {
120 module = grab_elf_file(name);
121@@ -207,9 +209,9 @@ static struct elf_file *grab_module(const char *name,
122 kernel = buf.release;
123 }
124 if (strlen(basedir))
125- nofail_asprintf(&moddir, "%s/%s/%s", basedir, MODULE_DIR, kernel);
126+ nofail_asprintf(&moddir, "%s/%s/%s", basedir, module_dir, kernel);
127 else
128- nofail_asprintf(&moddir, "%s/%s", MODULE_DIR, kernel);
129+ nofail_asprintf(&moddir, "%s/%s", module_dir, kernel);
130
131 /* Search for it in modules.dep. */
132 nofail_asprintf(&depname, "%s/%s", moddir, "modules.dep");
133diff --git a/modprobe.c b/modprobe.c
134index 5464f45..cb57917 100644
135--- a/modprobe.c
136+++ b/modprobe.c
137@@ -86,10 +86,6 @@ typedef enum
138
139 } modprobe_flags_t;
140
141-#ifndef MODULE_DIR
142-#define MODULE_DIR "/lib/modules"
143-#endif
144-
145 /**
146 * print_usage - output the prefered program usage
147 *
148@@ -2136,6 +2132,7 @@ int main(int argc, char *argv[])
149 struct modprobe_conf conf = {};
150
151 recursion_depth = 0;
152+ char *module_dir = NULL;
153
154 /* Prepend options from environment. */
155 argv = merge_args(getenv("MODPROBE_OPTIONS"), argv, &argc);
156@@ -2233,7 +2230,11 @@ int main(int argc, char *argv[])
157 if (argc < optind + 1 && !dump_config && !list_only)
158 print_usage(argv[0]);
159
160- nofail_asprintf(&dirname, "%s%s/%s", basedir, MODULE_DIR, buf.release);
161+ if((module_dir = getenv("LINUX_MODULE_DIRECTORY")) == NULL) {
162+ module_dir = "/lib/modules";
163+ }
164+
165+ nofail_asprintf(&dirname, "%s%s/%s", basedir, module_dir, buf.release);
166
167 /* Old-style -t xxx wildcard? Only with -l. */
168 if (list_only) {