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perf tools: Make find_vdso_map() more modular

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In preparation for checking that the vectors page on the ARM
architecture, refactor the find_vdso_map() function to accept finding an
arbitrary string and create a dedicated helper function for that under
util/find-map.c and update the filename to find-map.c and all references
to it: perf-read-vdso.c and util/vdso.c.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: http://lkml.kernel.org/r/20181221034337.26663-2-f.fainelli@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Florian Fainelli
2018-12-20 19:43:36 -08:00
committed by Arnaldo Carvalho de Melo
parent ac6e022cbf
commit 011532379b
4 changed files with 11 additions and 12 deletions
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6
tools/perf/util/vdso.c
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@@ -18,10 +18,10 @@
#include "debug.h"
/*
* Include definition of find_vdso_map() also used in perf-read-vdso.c for
* Include definition of find_map() also used in perf-read-vdso.c for
* building perf-read-vdso32 and perf-read-vdsox32.
*/
#include "find-vdso-map.c"
#include "find-map.c"
#define VDSO__TEMP_FILE_NAME "/tmp/perf-vdso.so-XXXXXX"
@@ -76,7 +76,7 @@ static char *get_file(struct vdso_file *vdso_file)
if (vdso_file->found)
return vdso_file->temp_file_name;
if (vdso_file->error || find_vdso_map(&start, &end))
if (vdso_file->error || find_map(&start, &end, VDSO__MAP_NAME))
return NULL;
size = end - start;