busybox: added modinfo patch

3 files changed, 140 insertions, 1 deletions

diff --git a/repos/core/busybox/.checksum b/repos/core/busybox/.checksum
index f52553f8..d6ab8c69 100644
--- a/repos/core/busybox/.checksum
+++ b/repos/core/busybox/.checksum
@@ -1,4 +1,5 @@
 6499c4a3d5379e4e34e30a84f7ef9ae513b696694a07d1f4fbd9de9a998d0da1  0001-awk-fix-handling-of-literal-backslashes-in-replaceme.patch
+51952a0bbcad4d86d21319ca4ab89424665d66f242bc6eeda78d0180c22bdd5c  0006-modinfo-add-k-option-for-kernel-version.patch
 8c364768319aa2f68f480fe1fb4679af38cd692c5e7c66c8e0c2e0e0c7464e4c  0016-ping-make-ping-work-without-root-privileges.patch
 a7c6c992ca7bed0881b4be27af3d45e10b8f9560a3ee3db6a4e0ceda65f05e30  0031-syslogd-fix-wrong-OPT_locallog-flag-detection.patch
 7c40dc84a65c34364ef9de29247cb76f2c2db799ef091b4d980576dd11d7e16d  0034-adduser-remove-preconfigured-GECOS-full-name-field.patch
diff --git a/repos/core/busybox/0006-modinfo-add-k-option-for-kernel-version.patch b/repos/core/busybox/0006-modinfo-add-k-option-for-kernel-version.patch
new file mode 100644
index 00000000..30f342cf
--- /dev/null
+++ b/repos/core/busybox/0006-modinfo-add-k-option-for-kernel-version.patch
@@ -0,0 +1,137 @@
+From daed0a98b3d116d3fabb51340497273b5b9ce995 Mon Sep 17 00:00:00 2001
+From: Natanael Copa <ncopa@alpinelinux.org>
+Date: Thu, 28 Apr 2022 23:04:01 +0200
+Subject: [PATCH] modinfo: add -k option for kernel version
+
+It is useful to be able to specify kernel version when generating
+initramfs and similar for a kernel version that might not be the running
+one.
+
+bloatcheck on x86_64:
+
+function                                             old     new   delta
+packed_usage                                       26193   26218     +25
+modinfo_main                                         391     414     +23
+.rodata                                            80296   80298      +2
+------------------------------------------------------------------------------
+(add/remove: 0/0 grow/shrink: 3/0 up/down: 50/0)               Total: 50
+bytes
+   text    data     bss     dec     hex filename
+   834606   14124    2008  850738   cfb32 busybox_old
+   834657   14124    2008  850789   cfb65 busybox_unstripped
+
+Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
+---
+ modutils/modinfo.c | 30 ++++++++++++++++++------------
+ 1 file changed, 18 insertions(+), 12 deletions(-)
+
+diff --git a/modutils/modinfo.c b/modutils/modinfo.c
+index 0a86c3296..53bc02880 100644
+--- a/modutils/modinfo.c
++++ b/modutils/modinfo.c
+@@ -38,17 +38,18 @@ static const char *const shortcuts[] ALIGN_PTR = {
+ 
+ enum {
+ 	OPT_0 = (1 << 0), /* \0 as separator */
+-	OPT_F = (1 << 1), /* field name */
++	OPT_k = (1 << 1), /* kernel version */
++	OPT_F = (1 << 2), /* field name */
+ 	/* first bits are for -nadlp options, the rest are for
+ 	 * fields not selectable with "shortcut" options
+ 	 */
+-	OPT_n = (1 << 2),
+-	OPT_TAGS = ((1 << ARRAY_SIZE(shortcuts)) - 1) << 2,
++	OPT_n = (1 << 3),
++	OPT_TAGS = ((1 << ARRAY_SIZE(shortcuts)) - 1) << 3,
+ };
+ 
+ static void display(const char *data, const char *pattern)
+ {
+-	int flag = option_mask32 >> 1; /* shift out -0 bit */
++	int flag = option_mask32 >> 2; /* shift out -0 and -k bits */
+ 	if (flag & (flag-1)) {
+ 		/* more than one field to show: print "FIELD:" pfx */
+ 		int n = printf("%s:", pattern);
+@@ -82,7 +83,8 @@ static void modinfo(const char *path, const char *version,
+ 		}
+ 	}
+ 
+-	for (j = 1; (1<<j) & (OPT_TAGS|OPT_F); j++) {
++	/* skip initial -0 and -k option bits */
++	for (j = 2; (1<<j) & (OPT_TAGS|OPT_F); j++) {
+ 		const char *pattern;
+ 
+ 		if (!((1<<j) & tags))
+@@ -90,7 +92,7 @@ static void modinfo(const char *path, const char *version,
+ 
+ 		pattern = field;
+ 		if ((1<<j) & OPT_TAGS)
+-			pattern = shortcuts[j-2];
++			pattern = shortcuts[j-3];
+ 
+ 		if (strcmp(pattern, shortcuts[0]) == 0) {
+ 			/* "-n" or "-F filename" */
+@@ -123,7 +125,7 @@ static void modinfo(const char *path, const char *version,
+ }
+ 
+ //usage:#define modinfo_trivial_usage
+-//usage:       "[-adlpn0] [-F keyword] MODULE"
++//usage:       "[-adlpn0] [-F keyword] [-k kernel] MODULE"
+ //usage:#define modinfo_full_usage "\n\n"
+ //usage:       "	-a		Shortcut for '-F author'"
+ //usage:     "\n	-d		Shortcut for '-F description'"
+@@ -131,6 +133,7 @@ static void modinfo(const char *path, const char *version,
+ //usage:     "\n	-p		Shortcut for '-F parm'"
+ ////usage:     "\n	-n		Shortcut for '-F filename'"
+ //usage:     "\n	-F keyword	Keyword to look for"
++//usage:     "\n	-k kernel	kernel version"
+ //usage:     "\n	-0		NUL terminated output"
+ //usage:#define modinfo_example_usage
+ //usage:       "$ modinfo -F vermagic loop\n"
+@@ -139,6 +142,7 @@ int modinfo_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+ int modinfo_main(int argc UNUSED_PARAM, char **argv)
+ {
+ 	const char *field;
++	const char *kernel;
+ 	char name[MODULE_NAME_LEN];
+ 	struct utsname uts;
+ 	parser_t *parser;
+@@ -147,15 +151,17 @@ int modinfo_main(int argc UNUSED_PARAM, char **argv)
+ 	unsigned i;
+ 
+ 	field = NULL;
+-	opts = getopt32(argv, "^" "0F:nadlp" "\0" "-1"/*minimum one arg*/, &field);
++	uname(&uts);
++	kernel = uts.release;
++	opts = getopt32(argv, "^" "0k:F:nadlp" "\0" "-1"/*minimum one arg*/, &kernel, &field);
+ 	/* If no field selected, show all */
+ 	if (!(opts & (OPT_TAGS|OPT_F)))
+ 		option_mask32 |= OPT_TAGS;
++
+ 	argv += optind;
+ 
+-	uname(&uts);
+ 	parser = config_open2(
+-		xasprintf("%s/%s/%s", CONFIG_DEFAULT_MODULES_DIR, uts.release, CONFIG_DEFAULT_DEPMOD_FILE),
++		xasprintf("%s/%s/%s", CONFIG_DEFAULT_MODULES_DIR, kernel, CONFIG_DEFAULT_DEPMOD_FILE),
+ 		xfopen_for_read
+ 	);
+ 
+@@ -167,7 +173,7 @@ int modinfo_main(int argc UNUSED_PARAM, char **argv)
+ 		filename2modname(bb_basename(tokens[0]), name);
+ 		for (i = 0; argv[i]; i++) {
+ 			if (fnmatch(argv[i], name, 0) == 0) {
+-				modinfo(tokens[0], uts.release, field);
++				modinfo(tokens[0], kernel, field);
+ 				argv[i] = (char *) "";
+ 			}
+ 		}
+@@ -177,7 +183,7 @@ int modinfo_main(int argc UNUSED_PARAM, char **argv)
+ 
+ 	for (i = 0; argv[i]; i++) {
+ 		if (argv[i][0]) {
+-			modinfo(argv[i], uts.release, field);
++			modinfo(argv[i], kernel, field);
+ 		}
+ 	}
+ 
diff --git a/repos/core/busybox/abuild b/repos/core/busybox/abuild
index ac9c1b56..2b177b61 100644
--- a/repos/core/busybox/abuild
+++ b/repos/core/busybox/abuild
@@ -1,9 +1,10 @@
 name=busybox
 version=1.37.0
-release=2
+release=3
 source="https://${name}.net/downloads/${name}-${version}.tar.bz2
 	0001-awk-fix-handling-of-literal-backslashes-in-replaceme.patch
 	0016-ping-make-ping-work-without-root-privileges.patch
+	0006-modinfo-add-k-option-for-kernel-version.patch
 	0031-syslogd-fix-wrong-OPT_locallog-flag-detection.patch
 	0034-adduser-remove-preconfigured-GECOS-full-name-field.patch
 	kernel-6.8-tca.patch