| Message ID | 20240628192018.137313-1-adhemerval.zanella@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | debug: Fix clang open fortify wrapper (BZ 31927) | expand |
On 28/06/24 16:20, Adhemerval Zanella wrote: > The clang open fortify wrapper from 4228baef1a94e8bde84ad74 added > a restriction where open with 3 arguments where flags do not > contain O_CREAT or O_TMPFILE are handled as invalid. They are > not invalid, since the third argument is ignored, and the gcc > wrapper also allows it. > > Checked x86_64-linux-gnu and with a yocto build for some affected > packages. If no-one opposes I will commit this shortly. > --- > io/bits/fcntl2.h | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/io/bits/fcntl2.h b/io/bits/fcntl2.h > index c8888b50c1..0cced392e7 100644 > --- a/io/bits/fcntl2.h > +++ b/io/bits/fcntl2.h > @@ -61,13 +61,8 @@ open (const char *__path, int __oflag, ...) > return __open_alias (__path, __oflag, __va_arg_pack ()); > } > #elif __fortify_use_clang > -__fortify_function_error_function __attribute_overloadable__ int > -open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag, ...) > - __fortify_clang_unavailable ("open can be called either with 2 or 3 arguments, not more"); > - > __fortify_function __attribute_overloadable__ int > open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag) > - __fortify_clang_prefer_this_overload > __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag), > "open with O_CREAT or O_TMPFILE in second argument needs 3 arguments") > {
Seems to work ok for the package otherwise was failing to build with clang Tested-by: “Khem Raj <raj.khen@gmail.com>” On Mon, Jul 1, 2024 at 12:49 PM Adhemerval Zanella Netto < adhemerval.zanella@linaro.org> wrote: > > > On 28/06/24 16:20, Adhemerval Zanella wrote: > > The clang open fortify wrapper from 4228baef1a94e8bde84ad74 added > > a restriction where open with 3 arguments where flags do not > > contain O_CREAT or O_TMPFILE are handled as invalid. They are > > not invalid, since the third argument is ignored, and the gcc > > wrapper also allows it. > > > > Checked x86_64-linux-gnu and with a yocto build for some affected > > packages. > > If no-one opposes I will commit this shortly. > > > --- > > io/bits/fcntl2.h | 5 ----- > > 1 file changed, 5 deletions(-) > > > > diff --git a/io/bits/fcntl2.h b/io/bits/fcntl2.h > > index c8888b50c1..0cced392e7 100644 > > --- a/io/bits/fcntl2.h > > +++ b/io/bits/fcntl2.h > > @@ -61,13 +61,8 @@ open (const char *__path, int __oflag, ...) > > return __open_alias (__path, __oflag, __va_arg_pack ()); > > } > > #elif __fortify_use_clang > > -__fortify_function_error_function __attribute_overloadable__ int > > -open (__fortify_clang_overload_arg (const char *, ,__path), int > __oflag, ...) > > - __fortify_clang_unavailable ("open can be called either with 2 or > 3 arguments, not more"); > > - > > __fortify_function __attribute_overloadable__ int > > open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag) > > - __fortify_clang_prefer_this_overload > > __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag), > > "open with O_CREAT or O_TMPFILE in second > argument needs 3 arguments") > > { >
diff --git a/io/bits/fcntl2.h b/io/bits/fcntl2.h index c8888b50c1..0cced392e7 100644 --- a/io/bits/fcntl2.h +++ b/io/bits/fcntl2.h @@ -61,13 +61,8 @@ open (const char *__path, int __oflag, ...) return __open_alias (__path, __oflag, __va_arg_pack ()); } #elif __fortify_use_clang -__fortify_function_error_function __attribute_overloadable__ int -open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag, ...) - __fortify_clang_unavailable ("open can be called either with 2 or 3 arguments, not more"); - __fortify_function __attribute_overloadable__ int open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag) - __fortify_clang_prefer_this_overload __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag), "open with O_CREAT or O_TMPFILE in second argument needs 3 arguments") {