Bug 1265557

Description of problem:

$ cat reproducer.c 
#include <stdio.h>
#include <sys/types.h>
#include <sys/xattr.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>

int main(int argc, char **argv) {
    char *foo = "bar";

    if (setxattr(argv[1], "user.x", foo, strlen(foo), 0) == -1)
        perror("setxattr");

    if (lsetxattr(argv[1], "user.y", foo, strlen(foo), 0) == -1)
        perror("lsetxattr");

    int fd = open (argv[1], O_RDWR);
    if (fsetxattr(fd, "user.y", foo, strlen(foo), 0) == -1)
        perror("fsetxattr");

    return 0;
}

$ valgrind ./reproducer test
==12484== Memcheck, a memory error detector
==12484== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==12484== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info
==12484== Command: ./a.out test
==12484== 
--12484-- WARNING: unhandled syscall: 5
--12484-- You may be able to write your own handler.
--12484-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--12484-- Nevertheless we consider this a bug.  Please report
--12484-- it at http://valgrind.org/support/bug_reports.html.
setxattr: Function not implemented
--12484-- WARNING: unhandled syscall: 6
--12484-- You may be able to write your own handler.
--12484-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--12484-- Nevertheless we consider this a bug.  Please report
--12484-- it at http://valgrind.org/support/bug_reports.html.
lsetxattr: Function not implemented
--12484-- WARNING: unhandled syscall: 7
--12484-- You may be able to write your own handler.
--12484-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--12484-- Nevertheless we consider this a bug.  Please report
--12484-- it at http://valgrind.org/support/bug_reports.html.
fsetxattr: Function not implemented
==12484== 
==12484== HEAP SUMMARY:
==12484==     in use at exit: 0 bytes in 0 blocks
==12484==   total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==12484== 
==12484== All heap blocks were freed -- no leaks are possible
==12484== 
==12484== For counts of detected and suppressed errors, rerun with: -v
==12484== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

According to coregrind/m_syswrap/syswrap-arm64-linux.c, these are indeed unimplemented, as well as other syscalls from this family (removexattr, flistxattr, ...), though I did not run into others anywhere yet. Reproducer above was created for testing a bug previously reported for ppc64.


Version-Release number of selected component (if applicable):

valgrind-3.10.0-16.el7.aarch64


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info: