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| author | Jason Baron <jbaron@redhat.com> | 2010-09-17 11:09:17 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-09-22 16:31:19 -0400 |
| commit | 52159d98be6f26c48f5e02c7ab3c9848a85979b5 (patch) | |
| tree | 29ba759acd0a9fd82b796b9e965dab5ed9d30ce6 /scripts/basic | |
| parent | 8f7b50c514206211cc282a4247f7b12f18dee674 (diff) | |
| download | linux-stable-52159d98be6f26c48f5e02c7ab3c9848a85979b5.tar.gz linux-stable-52159d98be6f26c48f5e02c7ab3c9848a85979b5.tar.bz2 linux-stable-52159d98be6f26c48f5e02c7ab3c9848a85979b5.zip | |
jump label: Convert dynamic debug to use jump labels
Convert the 'dynamic debug' infrastructure to use jump labels.
Signed-off-by: Jason Baron <jbaron@redhat.com>
LKML-Reference: <b77627358cea3e27d7be4386f45f66219afb8452.1284733808.git.jbaron@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'scripts/basic')
| -rw-r--r-- | scripts/basic/Makefile | 2 | ||||
| -rw-r--r-- | scripts/basic/hash.c | 64 |
2 files changed, 1 insertions, 65 deletions
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile index 09559951df12..4c324a1f1e0e 100644 --- a/scripts/basic/Makefile +++ b/scripts/basic/Makefile @@ -9,7 +9,7 @@ # fixdep: Used to generate dependency information during build process # docproc: Used in Documentation/DocBook -hostprogs-y := fixdep docproc hash +hostprogs-y := fixdep docproc always := $(hostprogs-y) # fixdep is needed to compile other host programs diff --git a/scripts/basic/hash.c b/scripts/basic/hash.c deleted file mode 100644 index 2ef5d3f666b8..000000000000 --- a/scripts/basic/hash.c +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright (C) 2008 Red Hat, Inc., Jason Baron <jbaron@redhat.com> - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define DYNAMIC_DEBUG_HASH_BITS 6 - -static const char *program; - -static void usage(void) -{ - printf("Usage: %s <djb2|r5> <modname>\n", program); - exit(1); -} - -/* djb2 hashing algorithm by Dan Bernstein. From: - * http://www.cse.yorku.ca/~oz/hash.html - */ - -static unsigned int djb2_hash(char *str) -{ - unsigned long hash = 5381; - int c; - - c = *str; - while (c) { - hash = ((hash << 5) + hash) + c; - c = *++str; - } - return (unsigned int)(hash & ((1 << DYNAMIC_DEBUG_HASH_BITS) - 1)); -} - -static unsigned int r5_hash(char *str) -{ - unsigned long hash = 0; - int c; - - c = *str; - while (c) { - hash = (hash + (c << 4) + (c >> 4)) * 11; - c = *++str; - } - return (unsigned int)(hash & ((1 << DYNAMIC_DEBUG_HASH_BITS) - 1)); -} - -int main(int argc, char *argv[]) -{ - program = argv[0]; - - if (argc != 3) - usage(); - if (!strcmp(argv[1], "djb2")) - printf("%d\n", djb2_hash(argv[2])); - else if (!strcmp(argv[1], "r5")) - printf("%d\n", r5_hash(argv[2])); - else - usage(); - exit(0); -} - |