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* [PATCH 1/3] alloc_hugepages.2, arch_prctl.2, capget.2, clone.2, delete_module.2, execveat.2, exit_group.2, get_robust_list.2, getunwind.2, init_module.2: Add note about the use of syscall(2)
@ 2021-04-21 22:44 Alejandro Colomar
  2021-04-21 22:44 ` [PATCH 2/3] Various pages: Remove unused <sys/ipc.h> (and <sys/types.h>) Alejandro Colomar
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Alejandro Colomar @ 2021-04-21 22:44 UTC (permalink / raw)
  To: mtk.manpages; +Cc: Alejandro Colomar, linux-man, libc-alpha

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 man2/alloc_hugepages.2 | 5 +++++
 man2/arch_prctl.2      | 6 ++++++
 man2/capget.2          | 5 +++++
 man2/clone.2           | 6 ++++++
 man2/delete_module.2   | 6 ++++++
 man2/execveat.2        | 6 ++++++
 man2/exit_group.2      | 6 ++++++
 man2/get_robust_list.2 | 5 +++++
 man2/getunwind.2       | 6 ++++++
 man2/init_module.2     | 5 +++++
 10 files changed, 56 insertions(+)

diff --git a/man2/alloc_hugepages.2 b/man2/alloc_hugepages.2
index cc76fc495..47f9da6b0 100644
--- a/man2/alloc_hugepages.2
+++ b/man2/alloc_hugepages.2
@@ -35,6 +35,11 @@ alloc_hugepages, free_hugepages \- allocate or free huge pages
 .BI "int syscall(SYS_free_hugepages, void *" addr );
 .\" asmlinkage int sys_free_hugepages(unsigned long addr);
 .fi
+.PP
+.IR Note :
+glibc provides no wrappers for these system calls,
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 The system calls
 .BR alloc_hugepages ()
diff --git a/man2/arch_prctl.2 b/man2/arch_prctl.2
index 7ae5b350c..982416761 100644
--- a/man2/arch_prctl.2
+++ b/man2/arch_prctl.2
@@ -34,6 +34,12 @@ arch_prctl \- set architecture-specific thread state
 .BI "int syscall(SYS_arch_prctl, int " code ", unsigned long " addr );
 .BI "int syscall(SYS_arch_prctl, int " code ", unsigned long *" addr );
 .fi
+.PP
+.IR Note :
+glibc provides no wrapper for
+.BR arch_prctl (),
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 .BR arch_prctl ()
 sets architecture-specific process or thread state.
diff --git a/man2/capget.2 b/man2/capget.2
index 9dbc0404c..3ac05106f 100644
--- a/man2/capget.2
+++ b/man2/capget.2
@@ -28,6 +28,11 @@ capget, capset \- set/get capabilities of thread(s)
 .BI "int syscall(SYS_capset, cap_user_header_t " hdrp ,
 .BI "            const cap_user_data_t " datap );
 .fi
+.PP
+.IR Note :
+glibc provides no wrappers for these system calls,
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 These two system calls are the raw kernel interface for getting and
 setting thread capabilities.
diff --git a/man2/clone.2 b/man2/clone.2
index f455c97d8..7253091a7 100644
--- a/man2/clone.2
+++ b/man2/clone.2
@@ -63,6 +63,12 @@ clone, __clone2, clone3 \- create a child process
 .PP
 .BI "long syscall(SYS_clone3, struct clone_args *" cl_args ", size_t " size );
 .fi
+.PP
+.IR Note :
+glibc provides no wrapper for
+.BR clone3 (),
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 These system calls
 create a new ("child") process, in a manner similar to
diff --git a/man2/delete_module.2 b/man2/delete_module.2
index 21c9e9d8d..3b14111c5 100644
--- a/man2/delete_module.2
+++ b/man2/delete_module.2
@@ -33,6 +33,12 @@ delete_module \- unload a kernel module
 .PP
 .BI "int syscall(SYS_delete_module, const char *" name ", unsigned int " flags );
 .fi
+.PP
+.IR Note :
+glibc provides no wrapper for
+.BR delete_module (),
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 The
 .BR delete_module ()
diff --git a/man2/execveat.2 b/man2/execveat.2
index c566f53df..0c97a0eb3 100644
--- a/man2/execveat.2
+++ b/man2/execveat.2
@@ -36,6 +36,12 @@ execveat \- execute program relative to a directory file descriptor
 .BI "            const char *const " argv "[], const char *const " envp [],
 .BI "            int " flags );
 .fi
+.PP
+.IR Note :
+glibc provides no wrapper for
+.BR execveat (),
+necessitating the use of
+.BR syscall (2).
 .\" FIXME . See https://sourceware.org/bugzilla/show_bug.cgi?id=27364
 .SH DESCRIPTION
 .\" commit 51f39a1f0cea1cacf8c787f652f26dfee9611874
diff --git a/man2/exit_group.2 b/man2/exit_group.2
index b512927d4..96715d26a 100644
--- a/man2/exit_group.2
+++ b/man2/exit_group.2
@@ -32,6 +32,12 @@ exit_group \- exit all threads in a process
 .PP
 .BI "noreturn void syscall(SYS_exit_group, int " status );
 .fi
+.PP
+.IR Note :
+glibc provides no wrapper for
+.BR exit_group (),
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 This system call is equivalent to
 .BR _exit (2)
diff --git a/man2/get_robust_list.2 b/man2/get_robust_list.2
index d1b1c59bc..66b27d905 100644
--- a/man2/get_robust_list.2
+++ b/man2/get_robust_list.2
@@ -42,6 +42,11 @@ get_robust_list, set_robust_list \- get/set list of robust futexes
 .BI "long syscall(SYS_set_robust_list,"
 .BI "             struct robust_list_head *" head ", size_t " len );
 .fi
+.PP
+.IR Note :
+glibc provides no wrappers for these system calls,
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 These system calls deal with per-thread robust futex lists.
 These lists are managed in user space:
diff --git a/man2/getunwind.2 b/man2/getunwind.2
index 2c44506c7..bf15a82b6 100644
--- a/man2/getunwind.2
+++ b/man2/getunwind.2
@@ -35,6 +35,12 @@ getunwind \- copy the unwind data to caller's buffer
 .PP
 .BI "long syscall(SYS_getunwind, void " *buf ", size_t " buf_size );
 .fi
+.PP
+.IR Note :
+glibc provides no wrapper for
+.BR getunwind (),
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 .I Note: this system call is obsolete.
 .PP
diff --git a/man2/init_module.2 b/man2/init_module.2
index 13d1b7f0a..aac0c6631 100644
--- a/man2/init_module.2
+++ b/man2/init_module.2
@@ -38,6 +38,11 @@ init_module, finit_module \- load a kernel module
 .BI "int syscall(SYS_finit_module, int " fd ", const char *" param_values ,
 .BI "            int " flags );
 .fi
+.PP
+.IR Note :
+glibc provides no wrappers for these system calls,
+necessitating the use of
+.BR syscall (2).
 .SH DESCRIPTION
 .BR init_module ()
 loads an ELF image into kernel space,
-- 
2.31.0


^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-05-09 20:09 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-21 22:44 [PATCH 1/3] alloc_hugepages.2, arch_prctl.2, capget.2, clone.2, delete_module.2, execveat.2, exit_group.2, get_robust_list.2, getunwind.2, init_module.2: Add note about the use of syscall(2) Alejandro Colomar
2021-04-21 22:44 ` [PATCH 2/3] Various pages: Remove unused <sys/ipc.h> (and <sys/types.h>) Alejandro Colomar
2021-05-09 19:54   ` Michael Kerrisk (man-pages)
2021-04-21 22:44 ` [PATCH 3/3] open.2: Remove unused <sys/stat.h> Alejandro Colomar
2021-05-09 20:02   ` Michael Kerrisk (man-pages)
2021-05-09 20:09     ` Alejandro Colomar (man-pages)
2021-05-09 19:52 ` [PATCH 1/3] alloc_hugepages.2, arch_prctl.2, capget.2, clone.2, delete_module.2, execveat.2, exit_group.2, get_robust_list.2, getunwind.2, init_module.2: Add note about the use of syscall(2) Michael Kerrisk (man-pages)

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