Prev: [PATCH 0/6] tracing: add compat syscall support
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From: Jason Baron on 2 Feb 2010 16:30
Convert x86 compat syscalls to use SYSCALL_PREFIX_DEFINE#() macros. This allows
us to hook the compat syscalls into the event tracer.

Signed-off-by: Jason Baron <jbaron(a)redhat.com>
---
arch/x86/ia32/sys_ia32.c | 106 +++++++++++++++++++++++-----------------------
1 files changed, 53 insertions(+), 53 deletions(-)

diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 422572c..751d950 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -50,15 +50,15 @@
#define AA(__x) ((unsigned long)(__x))


-asmlinkage long sys32_truncate64(char __user *filename,
- unsigned long offset_low,
- unsigned long offset_high)
+SYSCALL_PREFIX_DEFINE3(32_, truncate64, char __user *, filename,
+ unsigned long, offset_low,
+ unsigned long, offset_high)
{
return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
}

-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
- unsigned long offset_high)
+SYSCALL_PREFIX_DEFINE3(32_, ftruncate64, unsigned int, fd, unsigned long, offset_low,
+ unsigned long, offset_high)
{
return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
}
@@ -95,8 +95,8 @@ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
return 0;
}

-asmlinkage long sys32_stat64(char __user *filename,
- struct stat64 __user *statbuf)
+SYSCALL_PREFIX_DEFINE2(32_, stat64, char __user *, filename,
+ struct stat64 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_stat(filename, &stat);
@@ -106,8 +106,8 @@ asmlinkage long sys32_stat64(char __user *filename,
return ret;
}

-asmlinkage long sys32_lstat64(char __user *filename,
- struct stat64 __user *statbuf)
+SYSCALL_PREFIX_DEFINE2(32_, lstat64, char __user *, filename,
+ struct stat64 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_lstat(filename, &stat);
@@ -116,7 +116,7 @@ asmlinkage long sys32_lstat64(char __user *filename,
return ret;
}

-asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
+SYSCALL_PREFIX_DEFINE2(32_, fstat64, unsigned int, fd, struct stat64 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_fstat(fd, &stat);
@@ -125,8 +125,8 @@ asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
return ret;
}

-asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename,
- struct stat64 __user *statbuf, int flag)
+SYSCALL_PREFIX_DEFINE4(32_, fstatat, unsigned int, dfd, char __user *, filename,
+ struct stat64 __user *, statbuf, int, flag)
{
struct kstat stat;
int error;
@@ -152,7 +152,7 @@ struct mmap_arg_struct {
unsigned int offset;
};

-asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg)
+SYSCALL_PREFIX_DEFINE1(32_, mmap, struct mmap_arg_struct __user *, arg)
{
struct mmap_arg_struct a;

@@ -166,15 +166,15 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg)
a.offset>>PAGE_SHIFT);
}

-asmlinkage long sys32_mprotect(unsigned long start, size_t len,
- unsigned long prot)
+SYSCALL_PREFIX_DEFINE3(32_, mprotect, unsigned long, start, size_t, len,
+ unsigned long, prot)
{
return sys_mprotect(start, len, prot);
}

-asmlinkage long sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
- struct sigaction32 __user *oact,
- unsigned int sigsetsize)
+SYSCALL_PREFIX_DEFINE4(32_, rt_sigaction, int, sig, struct sigaction32 __user *, act,
+ struct sigaction32 __user *, oact,
+ unsigned int, sigsetsize)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -248,8 +248,8 @@ asmlinkage long sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
return ret;
}

-asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
- struct old_sigaction32 __user *oact)
+SYSCALL_PREFIX_DEFINE3(32_, sigaction, int, sig, struct old_sigaction32 __user *, act,
+ struct old_sigaction32 __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -287,9 +287,9 @@ asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
return ret;
}

-asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
- compat_sigset_t __user *oset,
- unsigned int sigsetsize)
+SYSCALL_PREFIX_DEFINE4(32_, rt_sigprocmask, int, how, compat_sigset_t __user *, set,
+ compat_sigset_t __user *, oset,
+ unsigned int, sigsetsize)
{
sigset_t s;
compat_sigset_t s32;
@@ -327,7 +327,7 @@ asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
return 0;
}

-asmlinkage long sys32_alarm(unsigned int seconds)
+SYSCALL_PREFIX_DEFINE1(32_, alarm, unsigned int, seconds)
{
return alarm_setitimer(seconds);
}
@@ -340,7 +340,7 @@ struct sel_arg_struct {
unsigned int tvp;
};

-asmlinkage long sys32_old_select(struct sel_arg_struct __user *arg)
+SYSCALL_PREFIX_DEFINE1(32_, old_select, struct sel_arg_struct __user *, arg)
{
struct sel_arg_struct a;

@@ -350,21 +350,21 @@ asmlinkage long sys32_old_select(struct sel_arg_struct __user *arg)
compat_ptr(a.exp), compat_ptr(a.tvp));
}

-asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
- int options)
+SYSCALL_PREFIX_DEFINE3(32_, waitpid, compat_pid_t, pid, unsigned int *, stat_addr,
+ int, options)
{
return compat_sys_wait4(pid, stat_addr, options, NULL);
}

/* 32-bit timeval and related flotsam. */

-asmlinkage long sys32_sysfs(int option, u32 arg1, u32 arg2)
+SYSCALL_PREFIX_DEFINE3(32_, sysfs, int, option, u32, arg1, u32, arg2)
{
return sys_sysfs(option, arg1, arg2);
}

-asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
- struct compat_timespec __user *interval)
+SYSCALL_PREFIX_DEFINE2(32_, sched_rr_get_interval, compat_pid_t, pid,
+ struct compat_timespec __user *, interval)
{
struct timespec t;
int ret;
@@ -378,8 +378,8 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
return ret;
}

-asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
- compat_size_t sigsetsize)
+SYSCALL_PREFIX_DEFINE2(32_, rt_sigpending, compat_sigset_t __user *, set,
+ compat_size_t, sigsetsize)
{
sigset_t s;
compat_sigset_t s32;
@@ -402,8 +402,8 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
return ret;
}

-asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
- compat_siginfo_t __user *uinfo)
+SYSCALL_PREFIX_DEFINE3(32_, rt_sigqueueinfo, int, pid, int, sig,
+ compat_siginfo_t __user *, uinfo)
{
siginfo_t info;
int ret;
@@ -418,22 +418,22 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
}

/* warning: next two assume little endian */
-asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
- u32 poslo, u32 poshi)
+SYSCALL_PREFIX_DEFINE5(32_, pread, unsigned int, fd, char __user *, ubuf, u32, count,
+ u32, poslo, u32, poshi)
{
return sys_pread64(fd, ubuf, count,
((loff_t)AA(poshi) << 32) | AA(poslo));
}

-asmlinkage long sys32_pwrite(unsigned int fd, char __user *ubuf, u32 count,
- u32 poslo, u32 poshi)
+SYSCALL_PREFIX_DEFINE5(32_, pwrite, unsigned int, fd, char __user *, ubuf, u32, count,
+ u32, poslo, u32, poshi)
{
return sys_pwrite64(fd, ubuf, count,
((loff_t)AA(poshi) << 32) | AA(poslo));
}


-asmlinkage long sys32_personality(unsigned long personality)
+SYSCALL_PREFIX_DEFINE1(32_, personality, unsigned long, personality)
{
int ret;

@@ -446,8 +446,8 @@ asmlinkage long sys32_personality(unsigned long personality)
return ret;
}

-asmlinkage long sys32_sendfile(int out_fd, int in_fd,
- compat_off_t __user *offset, s32 count)
+SYSCALL_PREFIX_DEFINE4(32_, sendfile, int, out_fd, int, in_fd,
+ compat_off_t __user *, offset, s32, count)
{
mm_segment_t old_fs = get_fs();
int ret;
@@ -466,7 +466,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
return ret;
}

-asmlinkage long sys32_olduname(struct oldold_utsname __user *name)
+SYSCALL_PREFIX_DEFINE1(32_, olduname, struct oldold_utsname __user *, name)
{
char *arch = "x86_64";
int err;
@@ -518,8 +518,8 @@ long sys32_uname(struct old_utsname __user *name)
return err ? -EFAULT : 0;
}

-asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
- compat_uptr_t __user *envp, struct pt_regs *regs)
+SYSCALL_PREFIX_DEFINE4(32_, execve, char __user *, name, compat_uptr_t __user *, argv,
+ compat_uptr_t __user *, envp, struct pt_regs *, regs)
{
long error;
char *filename;
@@ -533,8 +533,8 @@ asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
return error;
}

-asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
- struct pt_regs *regs)
+SYSCALL_PREFIX_DEFINE3(32_, clone, unsigned int, clone_flags, unsigned int, newsp,
+ struct pt_regs *, regs)
{
void __user *parent_tid = (void __user *)regs->dx;
void __user *child_tid = (void __user *)regs->di;
@@ -593,24 +593,24 @@ asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
}

-asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
- unsigned n_low, unsigned n_hi, int flags)
+SYSCALL_PREFIX_DEFINE6(32_, sync_file_range, int, fd, unsigned, off_low, unsigned, off_hi,
+ unsigned, n_low, unsigned, n_hi, int, flags)
{
return sys_sync_file_range(fd,
((u64)off_hi << 32) | off_low,
((u64)n_hi << 32) | n_low, flags);
}

-asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi,
- size_t len, int advice)
+SYSCALL_PREFIX_DEFINE5(32_, fadvise64, int, fd, unsigned, offset_lo, unsigned, offset_hi,
+ size_t, len, int, advice)
{
return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
len, advice);
}

-asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo,
- unsigned offset_hi, unsigned len_lo,
- unsigned len_hi)
+SYSCALL_PREFIX_DEFINE6(32_, fallocate, int, fd, int, mode, unsigned, offset_lo,
+ unsigned, offset_hi, unsigned, len_lo,
+ unsigned, len_hi)
{
return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
((u64)len_hi << 32) | len_lo);
--
1.6.5.1

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Next: seastar - SeaStar Ethernet driver