[PATCH 2/7] tools/nolibc: remove __nolibc_enosys() fallback from *at() functions

[Thomas Weißschuh]

All architectures have had one of the real functions available since
Linux 2.6.12. The additional fallback to __nolibc_enosys() is superfluous.

Signed-off-by: Thomas Weißschuh <li...@weissschuh.net>
---
 tools/include/nolibc/sys.h | 32 ++++++++------------------------
 1 file changed, 8 insertions(+), 24 deletions(-)

diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 
4e5389edda03a61e76ad0377213e8ef0a621d300..2b9c3bf697e74e80016606814fe21929512ca007
 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -142,10 +142,8 @@ int sys_chmod(const char *path, mode_t mode)
 {
 #if defined(__NR_fchmodat)
        return my_syscall4(__NR_fchmodat, AT_FDCWD, path, mode, 0);
-#elif defined(__NR_chmod)
-       return my_syscall2(__NR_chmod, path, mode);
 #else
-       return __nolibc_enosys(__func__, path, mode);
+       return my_syscall2(__NR_chmod, path, mode);
 #endif
 }
 
@@ -165,10 +163,8 @@ int sys_chown(const char *path, uid_t owner, gid_t group)
 {
 #if defined(__NR_fchownat)
        return my_syscall5(__NR_fchownat, AT_FDCWD, path, owner, group, 0);
-#elif defined(__NR_chown)
-       return my_syscall3(__NR_chown, path, owner, group);
 #else
-       return __nolibc_enosys(__func__, path, owner, group);
+       return my_syscall3(__NR_chown, path, owner, group);
 #endif
 }
 
@@ -569,10 +565,8 @@ int sys_link(const char *old, const char *new)
 {
 #if defined(__NR_linkat)
        return my_syscall5(__NR_linkat, AT_FDCWD, old, AT_FDCWD, new, 0);
-#elif defined(__NR_link)
-       return my_syscall2(__NR_link, old, new);
 #else
-       return __nolibc_enosys(__func__, old, new);
+       return my_syscall2(__NR_link, old, new);
 #endif
 }
 
@@ -640,10 +634,8 @@ int sys_mkdir(const char *path, mode_t mode)
 {
 #if defined(__NR_mkdirat)
        return my_syscall3(__NR_mkdirat, AT_FDCWD, path, mode);
-#elif defined(__NR_mkdir)
-       return my_syscall2(__NR_mkdir, path, mode);
 #else
-       return __nolibc_enosys(__func__, path, mode);
+       return my_syscall2(__NR_mkdir, path, mode);
 #endif
 }
 
@@ -662,10 +654,8 @@ int sys_rmdir(const char *path)
 {
 #if defined(__NR_rmdir)
        return my_syscall1(__NR_rmdir, path);
-#elif defined(__NR_unlinkat)
-       return my_syscall3(__NR_unlinkat, AT_FDCWD, path, AT_REMOVEDIR);
 #else
-       return __nolibc_enosys(__func__, path);
+       return my_syscall3(__NR_unlinkat, AT_FDCWD, path, AT_REMOVEDIR);
 #endif
 }
 
@@ -685,10 +675,8 @@ long sys_mknod(const char *path, mode_t mode, dev_t dev)
 {
 #if defined(__NR_mknodat)
        return my_syscall4(__NR_mknodat, AT_FDCWD, path, mode, dev);
-#elif defined(__NR_mknod)
-       return my_syscall3(__NR_mknod, path, mode, dev);
 #else
-       return __nolibc_enosys(__func__, path, mode, dev);
+       return my_syscall3(__NR_mknod, path, mode, dev);
 #endif
 }
 
@@ -872,10 +860,8 @@ int sys_symlink(const char *old, const char *new)
 {
 #if defined(__NR_symlinkat)
        return my_syscall3(__NR_symlinkat, old, AT_FDCWD, new);
-#elif defined(__NR_symlink)
-       return my_syscall2(__NR_symlink, old, new);
 #else
-       return __nolibc_enosys(__func__, old, new);
+       return my_syscall2(__NR_symlink, old, new);
 #endif
 }
 
@@ -929,10 +915,8 @@ int sys_unlink(const char *path)
 {
 #if defined(__NR_unlinkat)
        return my_syscall3(__NR_unlinkat, AT_FDCWD, path, 0);
-#elif defined(__NR_unlink)
-       return my_syscall1(__NR_unlink, path);
 #else
-       return __nolibc_enosys(__func__, path);
+       return my_syscall1(__NR_unlink, path);
 #endif
 }
 

-- 
2.50.1