tools headers UAPI: sync linux/taskstats.h for procacct.c

After commit 9b93f7e32774 ("tools/getdelays: use the static UAPI headers
from tools/include/uapi"), the Makefile was changed to use
-I../include/uapi/ instead of -I../../usr/include to ensure tools always
use the up-to-date UAPI headers.

However, only linux/taskstats.h was added to tools/include/uapi/ in commit
e5bbb35a07b3 ("tools headers UAPI: sync linux/taskstats.h"), but
linux/acct.h was missing.

This causes procacct.c to fail to compile with:

procacct.c:234:37: error: 'AGROUP' undeclared (first use in this function)

gcc -I../include/uapi/    getdelays.c   -o getdelays
gcc -I../include/uapi/    procacct.c   -o procacct
procacct.c: In function `print_procacct':
procacct.c:234:37: error: `AGROUP' undeclared (first use in this function)
did you mean `NOGROUP'?
  234 |  , t->version >= 12 ? (t->ac_flag & AGROUP ? 'P' : 'T') : '?'
      |                                     ^~~~~~
      |                                     NOGROUP
procacct.c:234:37: note: each undeclared ident

because procacct.c uses the AGROUP macro defined in linux/acct.h.

Add the missing linux/acct.h to complete the static UAPI header set.

Link: https://lore.kernel.org/20260527213558929EhiHHy9EDTMjmg3uuDOMi@zte.com.cn
Fixes: 9b93f7e32774 ("tools/getdelays: use the static UAPI headers from tools/include/uapi")
Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Cc: Fan Yu <fan.yu9@zte.com.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: xu xin <xu.xin16@zte.com.cn>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/include/uapi/linux/acct.h b/tools/include/uapi/linux/acct.h
new file mode 100644 (file)
index 0000000..1e2382e
--- /dev/null
+++ b/tools/include/uapi/linux/acct.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ *  BSD Process Accounting for Linux - Definitions
+ *
+ *  Author: Marco van Wieringen (mvw@planets.elm.net)
+ *
+ *  This header file contains the definitions needed to implement
+ *  BSD-style process accounting. The kernel accounting code and all
+ *  user-level programs that try to do something useful with the
+ *  process accounting log must include this file.
+ *
+ *  Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
+ *
+ */
+
+#ifndef _UAPI_LINUX_ACCT_H
+#define _UAPI_LINUX_ACCT_H
+
+#include <linux/types.h>
+
+#include <asm/param.h>
+#include <asm/byteorder.h>
+
+/*
+ *  comp_t is a 16-bit "floating" point number with a 3-bit base 8
+ *  exponent and a 13-bit fraction.
+ *  comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction
+ *  (leading 1 not stored).
+ *  See linux/kernel/acct.c for the specific encoding systems used.
+ */
+
+typedef __u16  comp_t;
+typedef __u32  comp2_t;
+
+/*
+ *   accounting file record
+ *
+ *   This structure contains all of the information written out to the
+ *   process accounting file whenever a process exits.
+ */
+
+#define ACCT_COMM      16
+
+struct acct
+{
+       char            ac_flag;                /* Flags */
+       char            ac_version;             /* Always set to ACCT_VERSION */
+       /* for binary compatibility back until 2.0 */
+       __u16           ac_uid16;               /* LSB of Real User ID */
+       __u16           ac_gid16;               /* LSB of Real Group ID */
+       __u16           ac_tty;                 /* Control Terminal */
+       /* __u32 range means times from 1970 to 2106 */
+       __u32           ac_btime;               /* Process Creation Time */
+       comp_t          ac_utime;               /* User Time */
+       comp_t          ac_stime;               /* System Time */
+       comp_t          ac_etime;               /* Elapsed Time */
+       comp_t          ac_mem;                 /* Average Memory Usage */
+       comp_t          ac_io;                  /* Chars Transferred */
+       comp_t          ac_rw;                  /* Blocks Read or Written */
+       comp_t          ac_minflt;              /* Minor Pagefaults */
+       comp_t          ac_majflt;              /* Major Pagefaults */
+       comp_t          ac_swaps;               /* Number of Swaps */
+/* m68k had no padding here. */
+#if !defined(CONFIG_M68K) || !defined(__KERNEL__)
+       __u16           ac_ahz;                 /* AHZ */
+#endif
+       __u32           ac_exitcode;            /* Exitcode */
+       char            ac_comm[ACCT_COMM + 1]; /* Command Name */
+       __u8            ac_etime_hi;            /* Elapsed Time MSB */
+       __u16           ac_etime_lo;            /* Elapsed Time LSB */
+       __u32           ac_uid;                 /* Real User ID */
+       __u32           ac_gid;                 /* Real Group ID */
+};
+
+struct acct_v3
+{
+       char            ac_flag;                /* Flags */
+       char            ac_version;             /* Always set to ACCT_VERSION */
+       __u16           ac_tty;                 /* Control Terminal */
+       __u32           ac_exitcode;            /* Exitcode */
+       __u32           ac_uid;                 /* Real User ID */
+       __u32           ac_gid;                 /* Real Group ID */
+       __u32           ac_pid;                 /* Process ID */
+       __u32           ac_ppid;                /* Parent Process ID */
+       /* __u32 range means times from 1970 to 2106 */
+       __u32           ac_btime;               /* Process Creation Time */
+#ifdef __KERNEL__
+       __u32           ac_etime;               /* Elapsed Time */
+#else
+       float           ac_etime;               /* Elapsed Time */
+#endif
+       comp_t          ac_utime;               /* User Time */
+       comp_t          ac_stime;               /* System Time */
+       comp_t          ac_mem;                 /* Average Memory Usage */
+       comp_t          ac_io;                  /* Chars Transferred */
+       comp_t          ac_rw;                  /* Blocks Read or Written */
+       comp_t          ac_minflt;              /* Minor Pagefaults */
+       comp_t          ac_majflt;              /* Major Pagefaults */
+       comp_t          ac_swaps;               /* Number of Swaps */
+       char            ac_comm[ACCT_COMM];     /* Command Name */
+};
+
+/*
+ *  accounting flags
+ */
+                               /* bit set when the process/task ... */
+#define AFORK          0x01    /* ... executed fork, but did not exec */
+#define ASU            0x02    /* ... used super-user privileges */
+#define ACOMPAT                0x04    /* ... used compatibility mode (VAX only not used) */
+#define ACORE          0x08    /* ... dumped core */
+#define AXSIG          0x10    /* ... was killed by a signal */
+#define AGROUP         0x20    /* ... was the last task of the process (task group) */
+
+#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
+#define ACCT_BYTEORDER 0x80    /* accounting file is big endian */
+#elif defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
+#define ACCT_BYTEORDER 0x00    /* accounting file is little endian */
+#else
+#error unspecified endianness
+#endif
+
+#ifndef __KERNEL__
+#define ACCT_VERSION   2
+#define AHZ            (HZ)
+#endif /* __KERNEL */
+
+
+#endif /* _UAPI_LINUX_ACCT_H */