3c8a67f50a
Provides united way of parsing kernel module path
into several components.
The new kmod_path__parse function and few defines:
int __kmod_path__parse(struct kmod_path *m, const char *path,
bool alloc_name, bool alloc_ext);
#define kmod_path__parse(__m, __p) __kmod_path__parse(__m, __p, false, false)
#define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true , false)
#define kmod_path__parse_ext(__m, __p) __kmod_path__parse(__m, __p, false, true)
parse kernel module @path and updates @m argument like:
@comp - true if @path contains supported compression suffix,
false otherwise
@kmod - true if @path contains '.ko' suffix in right position,
false otherwise
@name - if (@alloc_name && @kmod) is true, it contains strdup-ed base name
of the kernel module without suffixes, otherwise strudup-ed
base name of @path
@ext - if (@alloc_ext && @comp) is true, it contains strdup-ed string
the compression suffix
It returns 0 if there's no strdup error, -ENOMEM otherwise.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9t6eqg8j610r94l743hkntiv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
#include <stdbool.h>
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#include "tests.h"
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#include "dso.h"
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#include "debug.h"
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static int test(const char *path, bool alloc_name, bool alloc_ext,
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bool kmod, bool comp, const char *name, const char *ext)
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{
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struct kmod_path m;
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memset(&m, 0x0, sizeof(m));
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TEST_ASSERT_VAL("kmod_path__parse",
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!__kmod_path__parse(&m, path, alloc_name, alloc_ext));
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pr_debug("%s - alloc name %d, alloc ext %d, kmod %d, comp %d, name '%s', ext '%s'\n",
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path, alloc_name, alloc_ext, m.kmod, m.comp, m.name, m.ext);
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TEST_ASSERT_VAL("wrong kmod", m.kmod == kmod);
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TEST_ASSERT_VAL("wrong comp", m.comp == comp);
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if (ext)
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TEST_ASSERT_VAL("wrong ext", m.ext && !strcmp(ext, m.ext));
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else
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TEST_ASSERT_VAL("wrong ext", !m.ext);
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if (name)
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TEST_ASSERT_VAL("wrong name", m.name && !strcmp(name, m.name));
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else
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TEST_ASSERT_VAL("wrong name", !m.name);
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free(m.name);
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free(m.ext);
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return 0;
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}
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#define T(path, an, ae, k, c, n, e) \
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TEST_ASSERT_VAL("failed", !test(path, an, ae, k, c, n, e))
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int test__kmod_path__parse(void)
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{
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/* path alloc_name alloc_ext kmod comp name ext */
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T("/xxxx/xxxx/x-x.ko", true , true , true, false, "[x_x]", NULL);
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T("/xxxx/xxxx/x-x.ko", false , true , true, false, NULL , NULL);
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T("/xxxx/xxxx/x-x.ko", true , false , true, false, "[x_x]", NULL);
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T("/xxxx/xxxx/x-x.ko", false , false , true, false, NULL , NULL);
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/* path alloc_name alloc_ext kmod comp name ext */
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T("/xxxx/xxxx/x.ko.gz", true , true , true, true, "[x]", "gz");
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T("/xxxx/xxxx/x.ko.gz", false , true , true, true, NULL , "gz");
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T("/xxxx/xxxx/x.ko.gz", true , false , true, true, "[x]", NULL);
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T("/xxxx/xxxx/x.ko.gz", false , false , true, true, NULL , NULL);
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/* path alloc_name alloc_ext kmod comp name ext */
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T("/xxxx/xxxx/x.gz", true , true , false, true, "x.gz" ,"gz");
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T("/xxxx/xxxx/x.gz", false , true , false, true, NULL ,"gz");
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T("/xxxx/xxxx/x.gz", true , false , false, true, "x.gz" , NULL);
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T("/xxxx/xxxx/x.gz", false , false , false, true, NULL , NULL);
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/* path alloc_name alloc_ext kmod comp name ext */
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T("x.gz", true , true , false, true, "x.gz", "gz");
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T("x.gz", false , true , false, true, NULL , "gz");
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T("x.gz", true , false , false, true, "x.gz", NULL);
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T("x.gz", false , false , false, true, NULL , NULL);
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/* path alloc_name alloc_ext kmod comp name ext */
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T("x.ko.gz", true , true , true, true, "[x]", "gz");
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T("x.ko.gz", false , true , true, true, NULL , "gz");
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T("x.ko.gz", true , false , true, true, "[x]", NULL);
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T("x.ko.gz", false , false , true, true, NULL , NULL);
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return 0;
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}
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