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From: "dluyaning at gmail dot com" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sourceware.org Subject: [Bug libc/29622] New: Open file permission error under aarch64 architecture Date: Wed, 28 Sep 2022 02:01:09 +0000 [thread overview] Message-ID: <bug-29622-131@http.sourceware.org/bugzilla/> (raw) https://sourceware.org/bugzilla/show_bug.cgi?id=29622 Bug ID: 29622 Summary: Open file permission error under aarch64 architecture Product: glibc Version: 2.28 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libc Assignee: unassigned at sourceware dot org Reporter: dluyaning at gmail dot com CC: drepper.fsp at gmail dot com Target Milestone: --- strace log: openat(AT_FDCWD, "/home/lyn/test/", O_RDWR|O_CLOEXEC|O_TMPFILE, 0134240) = 12 write(12, "11111\0", 6) = 6 lseek(12, 0, SEEK_SET) = 0 demo: #define _GNU_SOURCE #include <unistd.h> #include <stdlib.h> #include <sys/stat.h> #include <fcntl.h> #include <linux/limits.h> #include <errno.h> #include <string.h> #include <stdlib.h> #include <stdio.h> int main() { char path[PATH_MAX]; int fd = open("/home/lyn/test", O_TMPFILE | O_RDWR, S_IRUSR | S_IWUSR); write(fd, "hello", 5); fsync(fd); printf("pidis %d\n", getpid()); snprintf(path, PATH_MAX, "/proc/self/fd/%d", fd); int ret = linkat(fd, path, AT_FDCWD, "yyyy", AT_SYMLINK_FOLLOW); if(ret < 0) { printf("linkat error %d %s\n", errno, strerror(errno)); } pause(); return 0; } -- You are receiving this mail because: You are on the CC list for the bug.
next reply other threads:[~2022-09-28 2:01 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-28 2:01 dluyaning at gmail dot com [this message] 2022-09-28 2:02 ` [Bug libc/29622] " dluyaning at gmail dot com 2022-09-28 2:37 ` dluyaning at gmail dot com 2022-09-28 8:30 ` schwab@linux-m68k.org 2022-09-28 9:45 ` dluyaning at gmail dot com 2022-09-28 9:56 ` schwab@linux-m68k.org 2022-09-29 2:47 ` dluyaning at gmail dot com 2023-04-18 12:03 ` adhemerval.zanella at linaro dot org
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