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From: Adhemerval Zanella <azanella@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] sysvipc: Remove the linux shm-pad.h file Date: Thu, 9 Jul 2020 15:33:02 +0000 (GMT) [thread overview] Message-ID: <20200709153302.31BAF3842401@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7929d779850aaaf9fd2377ed0945fb53f60dee63 commit 7929d779850aaaf9fd2377ed0945fb53f60dee63 Author: Adhemerval Zanella <adhemerval.zanella@linaro.org> Date: Tue Jun 30 11:02:52 2020 -0300 sysvipc: Remove the linux shm-pad.h file Each architecture overrides the struct msqid_ds which its required kernel ABI one. Checked on x86_64-linux-gnu and some bases sysvipc tests on hppa, mips, mipsle, mips64, mips64le, sparc64, sparcv9, powerpc64le, powerpc64, and powerpc. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Diff: --- sysdeps/unix/sysv/linux/Makefile | 2 +- sysdeps/unix/sysv/linux/bits/shm-pad.h | 37 ---------------- sysdeps/unix/sysv/linux/bits/shm.h | 1 - .../unix/sysv/linux/bits/types/struct_shmid_ds.h | 34 +++++---------- sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h | 28 ------------- .../sysv/linux/hppa/bits/types/struct_shmid_ds.h | 46 ++++++++++++++++++++ sysdeps/unix/sysv/linux/mips/bits/shm-pad.h | 26 ------------ .../sysv/linux/mips/bits/types/struct_shmid_ds.h | 49 ++++++++++++++++++++++ sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h | 28 ------------- .../linux/powerpc/bits/types/struct_shmid_ds.h | 46 ++++++++++++++++++++ sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h | 28 ------------- .../sysv/linux/sparc/bits/types/struct_shmid_ds.h | 45 ++++++++++++++++++++ 12 files changed, 198 insertions(+), 172 deletions(-) diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index a8f171bdc5..79f5cf2554 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -85,7 +85,7 @@ sysdep_headers += sys/mount.h sys/acct.h \ bits/siginfo-arch.h bits/siginfo-consts-arch.h \ bits/procfs.h bits/procfs-id.h bits/procfs-extra.h \ bits/procfs-prregset.h bits/mman-map-flags-generic.h \ - bits/shmlba.h bits/shm-pad.h \ + bits/shmlba.h \ bits/termios-struct.h bits/termios-c_cc.h \ bits/termios-c_iflag.h bits/termios-c_oflag.h \ bits/termios-baud.h bits/termios-c_cflag.h \ diff --git a/sysdeps/unix/sysv/linux/bits/shm-pad.h b/sysdeps/unix/sysv/linux/bits/shm-pad.h deleted file mode 100644 index 565e0e344b..0000000000 --- a/sysdeps/unix/sysv/linux/bits/shm-pad.h +++ /dev/null @@ -1,37 +0,0 @@ -/* Define where padding goes in struct shmid_ds. Generic version. - Copyright (C) 2018-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SYS_SHM_H -# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead." -#endif - -#include <bits/timesize.h> - -/* On most architectures, padding goes after time fields for 32-bit - systems and is omitted for 64-bit systems. Some architectures pad - before time fields instead, or omit padding despite being 32-bit, - or include it despite being 64-bit. Furthermore, some - architectures place shm_segsz after the time fields rather than - before them, with or without padding there. This must match the - layout used for struct shmid64_ds in <asm/shmbuf.h>, as glibc does - not do layout conversions for this structure. */ - -#define __SHM_PAD_AFTER_TIME (__TIMESIZE == 32) -#define __SHM_PAD_BEFORE_TIME 0 -#define __SHM_SEGSZ_AFTER_TIME 0 -#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0 diff --git a/sysdeps/unix/sysv/linux/bits/shm.h b/sysdeps/unix/sysv/linux/bits/shm.h index 9ef6aeaf92..f6aefa17f2 100644 --- a/sysdeps/unix/sysv/linux/bits/shm.h +++ b/sysdeps/unix/sysv/linux/bits/shm.h @@ -22,7 +22,6 @@ #include <bits/types.h> #include <bits/wordsize.h> #include <bits/shmlba.h> -#include <bits/shm-pad.h> /* Permission flag for shmget. */ #define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */ diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h index 938bbedfcd..61ed4a08c3 100644 --- a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h +++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h @@ -20,34 +20,22 @@ # error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead." #endif -#include <bits/shm-pad.h> - -#if __SHM_PAD_BEFORE_TIME -# define __SHM_PAD_TIME(NAME, RES) \ - unsigned long int __glibc_reserved ## RES; __time_t NAME -#elif __SHM_PAD_AFTER_TIME -# define __SHM_PAD_TIME(NAME, RES) \ - __time_t NAME; unsigned long int __glibc_reserved ## RES -#else -# define __SHM_PAD_TIME(NAME, RES) \ - __time_t NAME -#endif - /* Data structure describing a shared memory segment. */ struct shmid_ds { struct ipc_perm shm_perm; /* operation permission struct */ -#if !__SHM_SEGSZ_AFTER_TIME - size_t shm_segsz; /* size of segment in bytes */ -#endif - __SHM_PAD_TIME (shm_atime, 1); /* time of last shmat() */ - __SHM_PAD_TIME (shm_dtime, 2); /* time of last shmdt() */ - __SHM_PAD_TIME (shm_ctime, 3); /* time of last change by shmctl() */ -#if __SHM_PAD_BETWEEN_TIME_AND_SEGSZ - unsigned long int __glibc_reserved4; -#endif -#if __SHM_SEGSZ_AFTER_TIME size_t shm_segsz; /* size of segment in bytes */ +#if __TIMESIZE == 32 + __time_t shm_atime; /* time of last shmat() */ + unsigned long int __glibc_reserved1; + __time_t shm_dtime; /* time of last shmdt() */ + unsigned long int __glibc_reserved2; + __time_t shm_ctime; /* time of last change by shmctl() */ + unsigned long int __glibc_reserved3; +#else + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ #endif __pid_t shm_cpid; /* pid of creator */ __pid_t shm_lpid; /* pid of last shmop */ diff --git a/sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h b/sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h deleted file mode 100644 index d0811fe543..0000000000 --- a/sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h +++ /dev/null @@ -1,28 +0,0 @@ -/* Define where padding goes in struct shmid_ds. HPPA version. - Copyright (C) 2018-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SYS_SHM_H -# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead." -#endif - -#include <bits/timesize.h> - -#define __SHM_PAD_AFTER_TIME 0 -#define __SHM_PAD_BEFORE_TIME (__TIMESIZE == 32) -#define __SHM_SEGSZ_AFTER_TIME 1 -#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ (__TIMESIZE == 32) diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h new file mode 100644 index 0000000000..1ebf222eac --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h @@ -0,0 +1,46 @@ +/* Linux/HPPA implementation of the shared memory struct shmid_ds. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_SHM_H +# error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead." +#endif + +/* Data structure describing a shared memory segment. */ +struct shmid_ds + { + struct ipc_perm shm_perm; /* operation permission struct */ +#if __TIMESIZE == 32 + unsigned long int __glibc_reserved1; + __time_t shm_atime; /* time of last shmat() */ + unsigned long int __glibc_reserved2; + __time_t shm_dtime; /* time of last shmdt() */ + unsigned long int __glibc_reserved3; + __time_t shm_ctime; /* time of last change by shmctl() */ + unsigned long int __glibc_reserved4; +#else + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ +#endif + size_t shm_segsz; /* size of segment in bytes */ + __pid_t shm_cpid; /* pid of creator */ + __pid_t shm_lpid; /* pid of last shmop */ + shmatt_t shm_nattch; /* number of current attaches */ + __syscall_ulong_t __glibc_reserved5; + __syscall_ulong_t __glibc_reserved6; + }; diff --git a/sysdeps/unix/sysv/linux/mips/bits/shm-pad.h b/sysdeps/unix/sysv/linux/mips/bits/shm-pad.h deleted file mode 100644 index 5a475a64f9..0000000000 --- a/sysdeps/unix/sysv/linux/mips/bits/shm-pad.h +++ /dev/null @@ -1,26 +0,0 @@ -/* Define where padding goes in struct shmid_ds. MIPS version. - Copyright (C) 2018-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SYS_SHM_H -# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead." -#endif - -#define __SHM_PAD_AFTER_TIME 0 -#define __SHM_PAD_BEFORE_TIME 0 -#define __SHM_SEGSZ_AFTER_TIME 0 -#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0 diff --git a/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h new file mode 100644 index 0000000000..8e13928980 --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h @@ -0,0 +1,49 @@ +/* Linux/MIPS implementation of the shared memory struct shmid_ds. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_SHM_H +# error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead." +#endif + +/* Data structure describing a shared memory segment. */ +struct shmid_ds + { + struct ipc_perm shm_perm; /* operation permission struct */ + size_t shm_segsz; /* size of segment in bytes */ +#if __TIMESIZE == 32 + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ +#else + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ +#endif + __pid_t shm_cpid; /* pid of creator */ + __pid_t shm_lpid; /* pid of last shmop */ + shmatt_t shm_nattch; /* number of current attaches */ +#if __TIMESIZE == 32 + unsigned short int __glibc_reserved1; + unsigned short int __glibc_reserved2; + unsigned short int __glibc_reserved3; + unsigned short int __glibc_reserved4; +#else + __syscall_ulong_t __glibc_reserved5; + __syscall_ulong_t __glibc_reserved6; +#endif + }; diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h b/sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h deleted file mode 100644 index 34cbdb2a0d..0000000000 --- a/sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h +++ /dev/null @@ -1,28 +0,0 @@ -/* Define where padding goes in struct shmid_ds. PowerPC version. - Copyright (C) 2018-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SYS_SHM_H -# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead." -#endif - -#include <bits/timesize.h> - -#define __SHM_PAD_AFTER_TIME 0 -#define __SHM_PAD_BEFORE_TIME (__TIMESIZE == 32) -#define __SHM_SEGSZ_AFTER_TIME 1 -#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ (__TIMESIZE == 32) diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h new file mode 100644 index 0000000000..b0816fb16a --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h @@ -0,0 +1,46 @@ +/* Linux/PowerPC implementation of the shared memory struct shmid_ds. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_SHM_H +# error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead." +#endif + +/* Data structure describing a shared memory segment. */ +struct shmid_ds + { + struct ipc_perm shm_perm; /* operation permission struct */ +#if __TIMESIZE == 32 + unsigned long int __glibc_reserved1; + __time_t shm_atime; /* time of last shmat() */ + unsigned long int __glibc_reserved2; + __time_t shm_dtime; /* time of last shmdt() */ + unsigned long int __glibc_reserved3; + __time_t shm_ctime; /* time of last change by shmctl() */ + unsigned long int __glibc_reserved4; +#else + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ +#endif + size_t shm_segsz; /* size of segment in bytes */ + __pid_t shm_cpid; /* pid of creator */ + __pid_t shm_lpid; /* pid of last shmop */ + shmatt_t shm_nattch; /* number of current attaches */ + __syscall_ulong_t __glibc_reserved5; + __syscall_ulong_t __glibc_reserved6; + }; diff --git a/sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h b/sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h deleted file mode 100644 index cd0b1fe543..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h +++ /dev/null @@ -1,28 +0,0 @@ -/* Define where padding goes in struct shmid_ds. SPARC version. - Copyright (C) 2018-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SYS_SHM_H -# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead." -#endif - -#include <bits/timesize.h> - -#define __SHM_PAD_AFTER_TIME 0 -#define __SHM_PAD_BEFORE_TIME (__TIMESIZE == 32) -#define __SHM_SEGSZ_AFTER_TIME 1 -#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0 diff --git a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h new file mode 100644 index 0000000000..d5fb61d374 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h @@ -0,0 +1,45 @@ +/* Linux/SPARC implementation of the shared memory struct shmid_ds. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_SHM_H +# error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead." +#endif + +/* Data structure describing a shared memory segment. */ +struct shmid_ds + { + struct ipc_perm shm_perm; /* operation permission struct */ +#if __TIMESIZE == 32 + unsigned long int __glibc_reserved1; + __time_t shm_atime; /* time of last shmat() */ + unsigned long int __glibc_reserved2; + __time_t shm_dtime; /* time of last shmdt() */ + unsigned long int __glibc_reserved3; + __time_t shm_ctime; /* time of last change by shmctl() */ +#else + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ +#endif + size_t shm_segsz; /* size of segment in bytes */ + __pid_t shm_cpid; /* pid of creator */ + __pid_t shm_lpid; /* pid of last shmop */ + shmatt_t shm_nattch; /* number of current attaches */ + __syscall_ulong_t __glibc_reserved5; + __syscall_ulong_t __glibc_reserved6; + };
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