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From: Willy Tarreau <w@1wt.eu>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	valentin.schneider@arm.com, linux-kernel@vger.kernel.org,
	Willy Tarreau <w@1wt.eu>
Subject: [PATCH 3/9] tools/nolibc: make getpgrp() fall back to getpgid(0)
Date: Thu, 21 Jan 2021 08:20:25 +0100	[thread overview]
Message-ID: <20210121072031.23777-4-w@1wt.eu> (raw)
In-Reply-To: <20210121072031.23777-1-w@1wt.eu>

getpgrp() is not implemented on arm64, getpgid(0) must be used
instead.
[This is nolibc's upstream commit 2379f25073f9]

Signed-off-by: Willy Tarreau <w@1wt.eu>
---
 tools/include/nolibc/nolibc.h | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 5fda4d844054..9209da89044a 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -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)
 {
-- 
2.28.0


  parent reply	other threads:[~2021-01-21  7:40 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21  7:20 [PATCH 0/9] tools/nolibc: fix build issues on aarch64 after unistd cleanup Willy Tarreau
2021-01-21  7:20 ` [PATCH 1/9] tools/nolibc: the definition dup() was missing Willy Tarreau
2021-01-21  7:20 ` [PATCH 2/9] tools/nolibc: make dup2() rely on dup3() when available Willy Tarreau
2021-01-21  7:20 ` Willy Tarreau [this message]
2021-01-21  7:20 ` [PATCH 4/9] tools/nolibc: implement fork() based on clone() Willy Tarreau
2021-01-21  7:20 ` [PATCH 5/9] tools/nolibc: implement poll() based on ppoll() Willy Tarreau
2021-01-21  7:20 ` [PATCH 6/9] tools/nolibc: get timeval, timespec and timezone from linux/time.h Willy Tarreau
2021-01-21  7:20 ` [PATCH 7/9] tools/nolibc: remove incorrect definitions of __ARCH_WANT_* Willy Tarreau
2021-01-21  7:20 ` [PATCH 8/9] tools/nolibc: emit a detailed error when missing alternate syscall number definitions Willy Tarreau
2021-01-21  7:20 ` [PATCH 9/9] tools/nolibc: fix position of -lgcc in the documented example Willy Tarreau
2021-01-21  7:48 ` [PATCH 10/9] tools/rcutorture: fix position of -lgcc in mkinitrd.sh Willy Tarreau
2021-01-21 11:05 ` [PATCH 0/9] tools/nolibc: fix build issues on aarch64 after unistd cleanup Valentin Schneider
2021-01-21 11:07   ` Willy Tarreau
2021-01-21 11:13   ` Mark Rutland
2021-01-21 11:11 ` Mark Rutland
2021-01-21 14:18   ` Willy Tarreau
2021-01-21 19:54     ` Paul E. McKenney
2021-01-21 20:17       ` Willy Tarreau
2021-01-21 21:36         ` Paul E. McKenney
2021-01-22 12:03   ` Paul E. McKenney
2021-01-22 12:25     ` Mark Rutland
2021-01-22 15:42       ` Paul E. McKenney

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