svn commit: r345469 - in head/sys: amd64/linux32 compat/linux i386/linux
Dmitry Chagin
dchagin at FreeBSD.org
Sun Mar 24 14:44:38 UTC 2019
Author: dchagin
Date: Sun Mar 24 14:44:35 2019
New Revision: 345469
URL: https://svnweb.freebsd.org/changeset/base/345469
Log:
Linux between 4.18 and 5.0 split IPC system calls.
In preparation for doing this in the Linuxulator modify our linux_shmat()
to match actual Linux shmat() system call.
MFC after: 1 month
Modified:
head/sys/amd64/linux32/linux32_machdep.c
head/sys/amd64/linux32/syscalls.master
head/sys/compat/linux/linux_ipc.c
head/sys/compat/linux/linux_ipc.h
head/sys/i386/linux/linux_machdep.c
head/sys/i386/linux/syscalls.master
Modified: head/sys/amd64/linux32/linux32_machdep.c
==============================================================================
--- head/sys/amd64/linux32/linux32_machdep.c Sun Mar 24 14:02:57 2019 (r345468)
+++ head/sys/amd64/linux32/linux32_machdep.c Sun Mar 24 14:44:35 2019 (r345469)
@@ -259,7 +259,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
struct linux_semop_args a;
a.semid = args->arg1;
- a.tsops = args->ptr;
+ a.tsops = PTRIN(args->ptr);
a.nsops = args->arg2;
return (linux_semop(td, &a));
}
@@ -278,7 +278,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
a.semid = args->arg1;
a.semnum = args->arg2;
a.cmd = args->arg3;
- error = copyin(args->ptr, &a.arg, sizeof(a.arg));
+ error = copyin(PTRIN(args->ptr), &a.arg, sizeof(a.arg));
if (error)
return (error);
return (linux_semctl(td, &a));
@@ -287,7 +287,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
struct linux_msgsnd_args a;
a.msqid = args->arg1;
- a.msgp = args->ptr;
+ a.msgp = PTRIN(args->ptr);
a.msgsz = args->arg2;
a.msgflg = args->arg3;
return (linux_msgsnd(td, &a));
@@ -304,13 +304,13 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
if (args->ptr == 0)
return (EINVAL);
- error = copyin(args->ptr, &tmp, sizeof(tmp));
+ error = copyin(PTRIN(args->ptr), &tmp, sizeof(tmp));
if (error)
return (error);
a.msgp = PTRIN(tmp.msgp);
a.msgtyp = tmp.msgtyp;
} else {
- a.msgp = args->ptr;
+ a.msgp = PTRIN(args->ptr);
a.msgtyp = args->arg5;
}
return (linux_msgrcv(td, &a));
@@ -327,22 +327,29 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
a.msqid = args->arg1;
a.cmd = args->arg2;
- a.buf = args->ptr;
+ a.buf = PTRIN(args->ptr);
return (linux_msgctl(td, &a));
}
case LINUX_SHMAT: {
struct linux_shmat_args a;
+ l_uintptr_t addr;
+ int error;
a.shmid = args->arg1;
- a.shmaddr = args->ptr;
+ a.shmaddr = PTRIN(args->ptr);
a.shmflg = args->arg2;
- a.raddr = PTRIN((l_uint)args->arg3);
- return (linux_shmat(td, &a));
+ error = linux_shmat(td, &a);
+ if (error != 0)
+ return (error);
+ addr = td->td_retval[0];
+ error = copyout(&addr, PTRIN(args->arg3), sizeof(addr));
+ td->td_retval[0] = 0;
+ return (error);
}
case LINUX_SHMDT: {
struct linux_shmdt_args a;
- a.shmaddr = args->ptr;
+ a.shmaddr = PTRIN(args->ptr);
return (linux_shmdt(td, &a));
}
case LINUX_SHMGET: {
@@ -358,7 +365,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
a.shmid = args->arg1;
a.cmd = args->arg2;
- a.buf = args->ptr;
+ a.buf = PTRIN(args->ptr);
return (linux_shmctl(td, &a));
}
default:
Modified: head/sys/amd64/linux32/syscalls.master
==============================================================================
--- head/sys/amd64/linux32/syscalls.master Sun Mar 24 14:02:57 2019 (r345468)
+++ head/sys/amd64/linux32/syscalls.master Sun Mar 24 14:44:35 2019 (r345469)
@@ -212,8 +212,8 @@
115 AUE_SWAPOFF STD { int linux_swapoff(void); }
116 AUE_NULL STD { int linux_sysinfo(struct l_sysinfo *info); }
117 AUE_NULL STD { int linux_ipc(l_uint what, l_int arg1, \
- l_int arg2, l_int arg3, void *ptr, \
- l_long arg5); }
+ l_int arg2, l_uint arg3, l_uintptr_t ptr, \
+ l_uint arg5); }
118 AUE_FSYNC NOPROTO { int fsync(int fd); }
119 AUE_SIGRETURN STD { int linux_sigreturn( \
struct l_sigframe *sfp); }
Modified: head/sys/compat/linux/linux_ipc.c
==============================================================================
--- head/sys/compat/linux/linux_ipc.c Sun Mar 24 14:02:57 2019 (r345468)
+++ head/sys/compat/linux/linux_ipc.c Sun Mar 24 14:44:35 2019 (r345469)
@@ -785,23 +785,11 @@ linux_shmat(struct thread *td, struct linux_shmat_args
void *shmaddr;
int shmflg;
} */ bsd_args;
- int error;
-#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
- l_uintptr_t addr;
-#endif
bsd_args.shmid = args->shmid;
bsd_args.shmaddr = PTRIN(args->shmaddr);
bsd_args.shmflg = args->shmflg;
- if ((error = sys_shmat(td, &bsd_args)))
- return (error);
-#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
- addr = td->td_retval[0];
- if ((error = copyout(&addr, PTRIN(args->raddr), sizeof(addr))))
- return (error);
- td->td_retval[0] = 0;
-#endif
- return (0);
+ return (sys_shmat(td, &bsd_args));
}
int
Modified: head/sys/compat/linux/linux_ipc.h
==============================================================================
--- head/sys/compat/linux/linux_ipc.h Sun Mar 24 14:02:57 2019 (r345468)
+++ head/sys/compat/linux/linux_ipc.h Sun Mar 24 14:44:35 2019 (r345469)
@@ -141,7 +141,6 @@ struct linux_shmat_args
l_int shmid;
char *shmaddr;
l_int shmflg;
- l_ulong *raddr;
};
struct linux_shmctl_args
Modified: head/sys/i386/linux/linux_machdep.c
==============================================================================
--- head/sys/i386/linux/linux_machdep.c Sun Mar 24 14:02:57 2019 (r345468)
+++ head/sys/i386/linux/linux_machdep.c Sun Mar 24 14:44:35 2019 (r345469)
@@ -133,7 +133,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
struct linux_semop_args a;
a.semid = args->arg1;
- a.tsops = args->ptr;
+ a.tsops = PTRIN(args->ptr);
a.nsops = args->arg2;
return (linux_semop(td, &a));
}
@@ -152,7 +152,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
a.semid = args->arg1;
a.semnum = args->arg2;
a.cmd = args->arg3;
- error = copyin(args->ptr, &a.arg, sizeof(a.arg));
+ error = copyin(PTRIN(args->ptr), &a.arg, sizeof(a.arg));
if (error)
return (error);
return (linux_semctl(td, &a));
@@ -161,7 +161,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
struct linux_msgsnd_args a;
a.msqid = args->arg1;
- a.msgp = args->ptr;
+ a.msgp = PTRIN(args->ptr);
a.msgsz = args->arg2;
a.msgflg = args->arg3;
return (linux_msgsnd(td, &a));
@@ -176,15 +176,15 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
struct l_ipc_kludge tmp;
int error;
- if (args->ptr == NULL)
+ if (args->ptr == 0)
return (EINVAL);
- error = copyin(args->ptr, &tmp, sizeof(tmp));
+ error = copyin(PTRIN(args->ptr), &tmp, sizeof(tmp));
if (error)
return (error);
- a.msgp = tmp.msgp;
+ a.msgp = PTRIN(tmp.msgp);
a.msgtyp = tmp.msgtyp;
} else {
- a.msgp = args->ptr;
+ a.msgp = PTRIN(args->ptr);
a.msgtyp = args->arg5;
}
return (linux_msgrcv(td, &a));
@@ -201,22 +201,29 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
a.msqid = args->arg1;
a.cmd = args->arg2;
- a.buf = args->ptr;
+ a.buf = PTRIN(args->ptr);
return (linux_msgctl(td, &a));
}
case LINUX_SHMAT: {
struct linux_shmat_args a;
+ l_uintptr_t addr;
+ int error;
a.shmid = args->arg1;
- a.shmaddr = args->ptr;
+ a.shmaddr = PTRIN(args->ptr);
a.shmflg = args->arg2;
- a.raddr = (l_ulong *)args->arg3;
- return (linux_shmat(td, &a));
+ error = linux_shmat(td, &a);
+ if (error != 0)
+ return (error);
+ addr = td->td_retval[0];
+ error = copyout(&addr, PTRIN(args->arg3), sizeof(addr));
+ td->td_retval[0] = 0;
+ return (error);
}
case LINUX_SHMDT: {
struct linux_shmdt_args a;
- a.shmaddr = args->ptr;
+ a.shmaddr = PTRIN(args->ptr);
return (linux_shmdt(td, &a));
}
case LINUX_SHMGET: {
@@ -232,7 +239,7 @@ linux_ipc(struct thread *td, struct linux_ipc_args *ar
a.shmid = args->arg1;
a.cmd = args->arg2;
- a.buf = args->ptr;
+ a.buf = PTRIN(args->ptr);
return (linux_shmctl(td, &a));
}
default:
Modified: head/sys/i386/linux/syscalls.master
==============================================================================
--- head/sys/i386/linux/syscalls.master Sun Mar 24 14:02:57 2019 (r345468)
+++ head/sys/i386/linux/syscalls.master Sun Mar 24 14:44:35 2019 (r345469)
@@ -214,8 +214,8 @@
115 AUE_SWAPOFF STD { int linux_swapoff(void); }
116 AUE_NULL STD { int linux_sysinfo(struct l_sysinfo *info); }
117 AUE_NULL STD { int linux_ipc(l_uint what, l_int arg1, \
- l_int arg2, l_int arg3, void *ptr, \
- l_long arg5); }
+ l_int arg2, l_uint arg3, l_uintptr_t ptr, \
+ l_uint arg5); }
118 AUE_FSYNC NOPROTO { int fsync(int fd); }
119 AUE_SIGRETURN STD { int linux_sigreturn( \
struct l_sigframe *sfp); }
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