mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 00:10:51 +07:00
011532379b
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>
36 lines
547 B
C
36 lines
547 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#define VDSO__MAP_NAME "[vdso]"
|
|
|
|
/*
|
|
* Include definition of find_map() also used in util/vdso.c for
|
|
* building perf.
|
|
*/
|
|
#include "util/find-map.c"
|
|
|
|
int main(void)
|
|
{
|
|
void *start, *end;
|
|
size_t size, written;
|
|
|
|
if (find_map(&start, &end, VDSO__MAP_NAME))
|
|
return 1;
|
|
|
|
size = end - start;
|
|
|
|
while (size) {
|
|
written = fwrite(start, 1, size, stdout);
|
|
if (!written)
|
|
return 1;
|
|
start += written;
|
|
size -= written;
|
|
}
|
|
|
|
if (fflush(stdout))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|