[RFC6,v6,00/21] ILP32 for ARM64

Commit Message

Yury Norov May 13, 2016, 10:51 a.m. UTC

On Fri, May 13, 2016 at 09:28:03AM +0000, Catalin Marinas wrote:
> 
> The discussion is mainly around whether USER_DS for 32-bit compat apps
> should be the same as USER_DS for native 32-bit apps. Even for native
> 32-bit kernels, we don't use STACK_TOP as addr_limit. A read/write from
> 0xffffffff would fail in both cases anyway. I think the LTP test doesn't
> even try to access such memory but only to probe the range validity (I
> haven't managed to build the latest LTP yet).

This fix lets me build it (on top of 7b3ef3b0b)
Of course, it's not 'official'. :)

---
 testcases/kernel/syscalls/fstatat/fstatat01.c  | 1 +
 testcases/kernel/syscalls/preadv/preadv.h      | 1 +
 testcases/kernel/syscalls/pwritev/pwritev.h    | 1 +
 testcases/kernel/syscalls/request_key/Makefile | 2 +-
 4 files changed, 4 insertions(+), 1 deletion(-)

Comments

Catalin Marinas May 13, 2016, 11:03 a.m. UTC | #1

On Fri, May 13, 2016 at 01:51:15PM +0300, Yury Norov wrote:
> On Fri, May 13, 2016 at 09:28:03AM +0000, Catalin Marinas wrote:
> > The discussion is mainly around whether USER_DS for 32-bit compat apps
> > should be the same as USER_DS for native 32-bit apps. Even for native
> > 32-bit kernels, we don't use STACK_TOP as addr_limit. A read/write from
> > 0xffffffff would fail in both cases anyway. I think the LTP test doesn't
> > even try to access such memory but only to probe the range validity (I
> > haven't managed to build the latest LTP yet).
> 
> This fix lets me build it (on top of 7b3ef3b0b)
> Of course, it's not 'official'. :)
[...]
> --- a/testcases/kernel/syscalls/fstatat/fstatat01.c
> +++ b/testcases/kernel/syscalls/fstatat/fstatat01.c
> @@ -59,6 +59,7 @@ static const char *filenames[TEST_CASES];
>  static const int expected_errno[] = { 0, 0, ENOTDIR, EBADF, EINVAL, 0 };
>  static const int flags[] = { 0, 0, 0, 0, 9999, 0 };
>  
> +#define HAVE_FSTATAT
>  #if !defined(HAVE_FSTATAT)
>  #if (__NR_fstatat64 > 0)
>  int fstatat(int dirfd, const char *filename, struct stat64 *statbuf, int flags)
> diff --git a/testcases/kernel/syscalls/preadv/preadv.h b/testcases/kernel/syscalls/preadv/preadv.h
> index f3ac30d..b001389 100644
> --- a/testcases/kernel/syscalls/preadv/preadv.h
> +++ b/testcases/kernel/syscalls/preadv/preadv.h
> @@ -21,6 +21,7 @@
>  #include "config.h"
>  #include "linux_syscall_numbers.h"
>  
> +#define HAVE_PREADV
>  #if !defined(HAVE_PREADV)
>  int preadv(int fd, const struct iovec *iov, int iovcnt, off_t offset)
>  {
> diff --git a/testcases/kernel/syscalls/pwritev/pwritev.h b/testcases/kernel/syscalls/pwritev/pwritev.h
> index ae9d999..2a4d188 100644
> --- a/testcases/kernel/syscalls/pwritev/pwritev.h
> +++ b/testcases/kernel/syscalls/pwritev/pwritev.h
> @@ -21,6 +21,7 @@
>  #include "config.h"
>  #include "linux_syscall_numbers.h"
>  
> +#define HAVE_PWRITEV
>  #if !defined(HAVE_PWRITEV)
>  int pwritev(int fd, const struct iovec *iov, int iovcnt, off_t offset)
>  {

I didn't need any of these defines as they are automatically generated
in include/config.h for AArch32. However, I need to run autoreconf to
generate the configure script prior to building (archlinuxarm
filesystem)

Patch

diff --git a/testcases/kernel/syscalls/fstatat/fstatat01.c b/testcases/kernel/syscalls/fstatat/fstatat01.c
index 128f6dd..6e23c9e 100644
--- a/testcases/kernel/syscalls/fstatat/fstatat01.c
+++ b/testcases/kernel/syscalls/fstatat/fstatat01.c
@@ -59,6 +59,7 @@  static const char *filenames[TEST_CASES];
 static const int expected_errno[] = { 0, 0, ENOTDIR, EBADF, EINVAL, 0 };
 static const int flags[] = { 0, 0, 0, 0, 9999, 0 };
 
+#define HAVE_FSTATAT
 #if !defined(HAVE_FSTATAT)
 #if (__NR_fstatat64 > 0)
 int fstatat(int dirfd, const char *filename, struct stat64 *statbuf, int flags)
diff --git a/testcases/kernel/syscalls/preadv/preadv.h b/testcases/kernel/syscalls/preadv/preadv.h
index f3ac30d..b001389 100644
--- a/testcases/kernel/syscalls/preadv/preadv.h
+++ b/testcases/kernel/syscalls/preadv/preadv.h
@@ -21,6 +21,7 @@ 
 #include "config.h"
 #include "linux_syscall_numbers.h"
 
+#define HAVE_PREADV
 #if !defined(HAVE_PREADV)
 int preadv(int fd, const struct iovec *iov, int iovcnt, off_t offset)
 {
diff --git a/testcases/kernel/syscalls/pwritev/pwritev.h b/testcases/kernel/syscalls/pwritev/pwritev.h
index ae9d999..2a4d188 100644
--- a/testcases/kernel/syscalls/pwritev/pwritev.h
+++ b/testcases/kernel/syscalls/pwritev/pwritev.h
@@ -21,6 +21,7 @@ 
 #include "config.h"
 #include "linux_syscall_numbers.h"
 
+#define HAVE_PWRITEV
 #if !defined(HAVE_PWRITEV)
 int pwritev(int fd, const struct iovec *iov, int iovcnt, off_t offset)
 {
diff --git a/testcases/kernel/syscalls/request_key/Makefile b/testcases/kernel/syscalls/request_key/Makefile
index 9add429..2e8a37c 100644
--- a/testcases/kernel/syscalls/request_key/Makefile
+++ b/testcases/kernel/syscalls/request_key/Makefile
@@ -19,6 +19,6 @@  top_srcdir		?= ../../../..
 
 include $(top_srcdir)/include/mk/testcases.mk
 
-LDLIBS		+= $(KEYUTILS_LIBS)
+LDLIBS		+= $(lkeyutils)
 
 include $(top_srcdir)/include/mk/generic_leaf_target.mk