From e6be7bb8a32a99495f0d8fa51cac392a6f4bd631 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Tue, 21 Oct 2014 21:27:06 +0200 Subject: parisc: Wire up bpf syscall Signed-off-by: Helge Deller --- arch/parisc/include/uapi/asm/unistd.h | 3 ++- arch/parisc/kernel/syscall_table.S | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index 8667f18be238..5f5c0373de63 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -833,8 +833,9 @@ #define __NR_seccomp (__NR_Linux + 338) #define __NR_getrandom (__NR_Linux + 339) #define __NR_memfd_create (__NR_Linux + 340) +#define __NR_bpf (__NR_Linux + 341) -#define __NR_Linux_syscalls (__NR_memfd_create + 1) +#define __NR_Linux_syscalls (__NR_bpf + 1) #define __IGNORE_select /* newselect */ diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index b563d9c8268b..d65c50a68c50 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -436,6 +436,7 @@ ENTRY_SAME(seccomp) ENTRY_SAME(getrandom) ENTRY_SAME(memfd_create) /* 340 */ + ENTRY_SAME(bpf) /* Nothing yet */ -- cgit v1.2.3 From 8dd95c68f32b821ec02e89c42a4e500d6aebbd84 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Tue, 21 Oct 2014 21:29:09 +0200 Subject: parisc: Use BUILD_BUG() instead of undefined functions Signed-off-by: Helge Deller --- arch/parisc/include/asm/uaccess.h | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 4006964d8e12..a5cb070b54bf 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -9,6 +9,8 @@ #include #include +#include + #define VERIFY_READ 0 #define VERIFY_WRITE 1 @@ -28,11 +30,6 @@ * that put_user is the same as __put_user, etc. */ -extern int __get_kernel_bad(void); -extern int __get_user_bad(void); -extern int __put_kernel_bad(void); -extern int __put_user_bad(void); - static inline long access_ok(int type, const void __user * addr, unsigned long size) { @@ -43,8 +40,8 @@ static inline long access_ok(int type, const void __user * addr, #define get_user __get_user #if !defined(CONFIG_64BIT) -#define LDD_KERNEL(ptr) __get_kernel_bad(); -#define LDD_USER(ptr) __get_user_bad(); +#define LDD_KERNEL(ptr) BUILD_BUG() +#define LDD_USER(ptr) BUILD_BUG() #define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr) #define STD_USER(x, ptr) __put_user_asm64(x,ptr) #define ASM_WORD_INSN ".word\t" @@ -94,7 +91,7 @@ struct exception_data { case 2: __get_kernel_asm("ldh",ptr); break; \ case 4: __get_kernel_asm("ldw",ptr); break; \ case 8: LDD_KERNEL(ptr); break; \ - default: __get_kernel_bad(); break; \ + default: BUILD_BUG(); break; \ } \ } \ else { \ @@ -103,7 +100,7 @@ struct exception_data { case 2: __get_user_asm("ldh",ptr); break; \ case 4: __get_user_asm("ldw",ptr); break; \ case 8: LDD_USER(ptr); break; \ - default: __get_user_bad(); break; \ + default: BUILD_BUG(); break; \ } \ } \ \ @@ -136,7 +133,7 @@ struct exception_data { case 2: __put_kernel_asm("sth",__x,ptr); break; \ case 4: __put_kernel_asm("stw",__x,ptr); break; \ case 8: STD_KERNEL(__x,ptr); break; \ - default: __put_kernel_bad(); break; \ + default: BUILD_BUG(); break; \ } \ } \ else { \ @@ -145,7 +142,7 @@ struct exception_data { case 2: __put_user_asm("sth",__x,ptr); break; \ case 4: __put_user_asm("stw",__x,ptr); break; \ case 8: STD_USER(__x,ptr); break; \ - default: __put_user_bad(); break; \ + default: BUILD_BUG(); break; \ } \ } \ \ -- cgit v1.2.3 From 2fe749f50b0bec07650ef135b29b1f55bf543869 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Mon, 10 Nov 2014 21:46:18 +0100 Subject: parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls Switch over the msgctl, shmat, shmctl and semtimedop syscalls to use the compat layer. The problem was found with the debian procenv package, which called shmctl(0, SHM_INFO, &info); in which the shmctl syscall then overwrote parts of the surrounding areas on the stack on which the info variable was stored and thus lead to a segfault later on. Additionally fix the definition of struct shminfo64 to use unsigned longs like the other architectures. This has no impact on userspace since we only have a 32bit userspace up to now. Signed-off-by: Helge Deller Cc: John David Anglin Cc: # v3.10+ --- arch/parisc/include/uapi/asm/shmbuf.h | 25 +++++++++---------------- arch/parisc/kernel/syscall_table.S | 8 ++++---- 2 files changed, 13 insertions(+), 20 deletions(-) diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h index 0a3eada1863b..f395cde7b593 100644 --- a/arch/parisc/include/uapi/asm/shmbuf.h +++ b/arch/parisc/include/uapi/asm/shmbuf.h @@ -36,23 +36,16 @@ struct shmid64_ds { unsigned int __unused2; }; -#ifdef CONFIG_64BIT -/* The 'unsigned int' (formerly 'unsigned long') data types below will - * ensure that a 32-bit app calling shmctl(*,IPC_INFO,*) will work on - * a wide kernel, but if some of these values are meant to contain pointers - * they may need to be 'long long' instead. -PB XXX FIXME - */ -#endif struct shminfo64 { - unsigned int shmmax; - unsigned int shmmin; - unsigned int shmmni; - unsigned int shmseg; - unsigned int shmall; - unsigned int __unused1; - unsigned int __unused2; - unsigned int __unused3; - unsigned int __unused4; + unsigned long shmmax; + unsigned long shmmin; + unsigned long shmmni; + unsigned long shmseg; + unsigned long shmall; + unsigned long __unused1; + unsigned long __unused2; + unsigned long __unused3; + unsigned long __unused4; }; #endif /* _PARISC_SHMBUF_H */ diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index d65c50a68c50..fe4f0b89bf8f 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -286,11 +286,11 @@ ENTRY_COMP(msgsnd) ENTRY_COMP(msgrcv) ENTRY_SAME(msgget) /* 190 */ - ENTRY_SAME(msgctl) - ENTRY_SAME(shmat) + ENTRY_COMP(msgctl) + ENTRY_COMP(shmat) ENTRY_SAME(shmdt) ENTRY_SAME(shmget) - ENTRY_SAME(shmctl) /* 195 */ + ENTRY_COMP(shmctl) /* 195 */ ENTRY_SAME(ni_syscall) /* streams1 */ ENTRY_SAME(ni_syscall) /* streams2 */ ENTRY_SAME(lstat64) @@ -323,7 +323,7 @@ ENTRY_SAME(epoll_ctl) /* 225 */ ENTRY_SAME(epoll_wait) ENTRY_SAME(remap_file_pages) - ENTRY_SAME(semtimedop) + ENTRY_COMP(semtimedop) ENTRY_COMP(mq_open) ENTRY_SAME(mq_unlink) /* 230 */ ENTRY_COMP(mq_timedsend) -- cgit v1.2.3 From d8f5457ab93965f0e695516ad23548954e3e9044 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Mon, 10 Nov 2014 22:04:47 +0100 Subject: parisc: Avoid using CONFIG_64BIT in userspace exported headers The gcc compiler provide the predefined __LP64__ macro. Use that instead. Signed-off-by: Helge Deller --- arch/parisc/include/uapi/asm/bitsperlong.h | 8 +------- arch/parisc/include/uapi/asm/msgbuf.h | 8 +++++--- arch/parisc/include/uapi/asm/sembuf.h | 6 ++++-- arch/parisc/include/uapi/asm/shmbuf.h | 10 ++++++---- arch/parisc/include/uapi/asm/signal.h | 2 +- 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/parisc/include/uapi/asm/bitsperlong.h b/arch/parisc/include/uapi/asm/bitsperlong.h index 75196b415d3f..e0a23c7bdd43 100644 --- a/arch/parisc/include/uapi/asm/bitsperlong.h +++ b/arch/parisc/include/uapi/asm/bitsperlong.h @@ -1,13 +1,7 @@ #ifndef __ASM_PARISC_BITSPERLONG_H #define __ASM_PARISC_BITSPERLONG_H -/* - * using CONFIG_* outside of __KERNEL__ is wrong, - * __LP64__ was also removed from headers, so what - * is the right approach on parisc? - * -arnd - */ -#if (defined(__KERNEL__) && defined(CONFIG_64BIT)) || defined (__LP64__) +#if defined(__LP64__) #define __BITS_PER_LONG 64 #define SHIFT_PER_LONG 6 #else diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h index fe88f2649418..342138983914 100644 --- a/arch/parisc/include/uapi/asm/msgbuf.h +++ b/arch/parisc/include/uapi/asm/msgbuf.h @@ -1,6 +1,8 @@ #ifndef _PARISC_MSGBUF_H #define _PARISC_MSGBUF_H +#include + /* * The msqid64_ds structure for parisc architecture, copied from sparc. * Note extra padding because this structure is passed back and forth @@ -13,15 +15,15 @@ struct msqid64_ds { struct ipc64_perm msg_perm; -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad1; #endif __kernel_time_t msg_stime; /* last msgsnd time */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad2; #endif __kernel_time_t msg_rtime; /* last msgrcv time */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad3; #endif __kernel_time_t msg_ctime; /* last change time */ diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h index 1e59ffd3bd1e..f01d89e30d73 100644 --- a/arch/parisc/include/uapi/asm/sembuf.h +++ b/arch/parisc/include/uapi/asm/sembuf.h @@ -1,6 +1,8 @@ #ifndef _PARISC_SEMBUF_H #define _PARISC_SEMBUF_H +#include + /* * The semid64_ds structure for parisc architecture. * Note extra padding because this structure is passed back and forth @@ -13,11 +15,11 @@ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad1; #endif __kernel_time_t sem_otime; /* last semop time */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad2; #endif __kernel_time_t sem_ctime; /* last change time */ diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h index f395cde7b593..8496c38560c6 100644 --- a/arch/parisc/include/uapi/asm/shmbuf.h +++ b/arch/parisc/include/uapi/asm/shmbuf.h @@ -1,6 +1,8 @@ #ifndef _PARISC_SHMBUF_H #define _PARISC_SHMBUF_H +#include + /* * The shmid64_ds structure for parisc architecture. * Note extra padding because this structure is passed back and forth @@ -13,19 +15,19 @@ struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad1; #endif __kernel_time_t shm_atime; /* last attach time */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad2; #endif __kernel_time_t shm_dtime; /* last detach time */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad3; #endif __kernel_time_t shm_ctime; /* last change time */ -#ifndef CONFIG_64BIT +#if __BITS_PER_LONG != 64 unsigned int __pad4; #endif size_t shm_segsz; /* size of segment (bytes) */ diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h index 10df7079f4cd..e26043b73f5d 100644 --- a/arch/parisc/include/uapi/asm/signal.h +++ b/arch/parisc/include/uapi/asm/signal.h @@ -85,7 +85,7 @@ struct siginfo; /* Type of a signal handler. */ -#ifdef CONFIG_64BIT +#if defined(__LP64__) /* function pointers on 64-bit parisc are pointers to little structs and the * compiler doesn't support code which changes or tests the address of * the function in the little struct. This is really ugly -PB -- cgit v1.2.3