Commit c0c7c103 authored by Willy Tarreau's avatar Willy Tarreau Committed by Paul E. McKenney
Browse files

tools/nolibc: Make getpgrp() fall back to getpgid(0) 



The getpgrp() syscall is not implemented on arm64, so this commit instead
uses getpgid(0) when getpgrp() is not available.  This is a port of
nolibc's upstream commit 2379f25073f9 to the Linux kernel.

Fixes: 66b6f755 ("rcutorture: Import a copy of nolibc")
Tested-by: default avatarValentin Schneider <valentin.schneider@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64]
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 79f220e5

tools/include/nolibc/nolibc.h

+19 −1
Original line number Diff line number Diff line
@@ -1544,10 +1544,16 @@ int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count) 
	return my_syscall3(__NR_getdents64, fd, dirp, count);

}



static __attribute__((unused))

pid_t sys_getpgid(pid_t pid)

{

	return my_syscall1(__NR_getpgid, pid);

}



static __attribute__((unused))

pid_t sys_getpgrp(void)

{

	return my_syscall0(__NR_getpgrp);

	return sys_getpgid(0);

}



static __attribute__((unused))
@@ -1950,6 +1956,18 @@ int getdents64(int fd, struct linux_dirent64 *dirp, int count) 
	return ret;

}



static __attribute__((unused))

pid_t getpgid(pid_t pid)

{

	pid_t ret = sys_getpgid(pid);



	if (ret < 0) {

		SET_ERRNO(-ret);

		ret = -1;

	}

	return ret;

}



static __attribute__((unused))

pid_t getpgrp(void)

{