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arm: Fix wrong system call number

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System call number 78 corresponds to readlinkat.
Where as 78 is mapped to readlink() in syscall.def for
arm.

With this patch, use sys_readlinkat instead of sys_readlink
and update syscall.def to point syscall number 78 to readlinkat()
instead of readlink()

Signed-off-by: Vijaya Kumar K <vijayak@caviumnetworks.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Vijaya Kumar K
2015-12-28 13:39:39 +05:30
committed by Pavel Emelyanov
parent 9405d4a4cf
commit c9448e1ff7
2 changed files with 2 additions and 2 deletions
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2
arch/arm/syscall.def
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@@ -52,7 +52,7 @@ flock 32 143 (int fd, unsigned long cmd)
mkdir ! 39 (const char *name, int mode)
rmdir ! 40 (const char *name)
unlink ! 10 (char *pathname)
readlink 78 85 (const char *path, char *buf, int bufsize)
readlinkat 78 85 (int fd, const char *path, char *buf, int bufsize)
umask 166 60 (int mask)
getgroups 158 205 (int gsize, unsigned int *groups)
setgroups 159 206 (int gsize, unsigned int *groups)

2
pie/parasite.c
View File

@@ -289,7 +289,7 @@ static int parasite_get_proc_fd()
int ret, fd = -1;
char buf[2];
ret = sys_readlink("/proc/self", buf, sizeof(buf));
ret = sys_readlinkat(AT_FDCWD, "/proc/self", buf, sizeof(buf));
if (ret < 0 && ret != -ENOENT) {
pr_err("Can't readlink /proc/self (%d)\n", ret);
return ret;