Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
55 lines
960 B
C
55 lines
960 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#include <syscall.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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static int mlock2_(void *start, size_t len, int flags)
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{
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int ret = syscall(__NR_mlock2, start, len, flags);
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if (ret) {
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errno = ret;
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return -1;
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}
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return 0;
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}
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static FILE *seek_to_smaps_entry(unsigned long addr)
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{
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FILE *file;
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char *line = NULL;
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size_t size = 0;
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unsigned long start, end;
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char perms[5];
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unsigned long offset;
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char dev[32];
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unsigned long inode;
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char path[BUFSIZ];
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file = fopen("/proc/self/smaps", "r");
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if (!file)
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ksft_exit_fail_msg("fopen smaps: %s\n", strerror(errno));
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while (getline(&line, &size, file) > 0) {
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if (sscanf(line, "%lx-%lx %s %lx %s %lu %s\n",
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&start, &end, perms, &offset, dev, &inode, path) < 6)
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goto next;
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if (start <= addr && addr < end)
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goto out;
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next:
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free(line);
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line = NULL;
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size = 0;
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}
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fclose(file);
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file = NULL;
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out:
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free(line);
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return file;
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}
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