From: Richard Biener <richard.guenther@gmail.com>
To: Sam James <sam@gentoo.org>
Cc: gcc-patches@gcc.gnu.org, Kito Cheng <kito.cheng@gmail.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Andrew Waterman <andrew@sifive.com>,
Jim Wilson <jim.wilson.gcc@gmail.com>,
Ju-Zhe Zhong <juzhe.zhong@rivai.ai>
Subject: Re: [PATCH v4 1/2] RISC-V: Avoid calloc() poisoning on musl
Date: Tue, 14 Mar 2023 10:06:45 +0100 [thread overview]
Message-ID: <CAFiYyc1MfG2zgWVRWFzk7yxaKcB09ZyejvzPUYnuy4gkzRQqxg@mail.gmail.com> (raw)
In-Reply-To: <20230314002354.367655-1-sam@gentoo.org>
On Tue, Mar 14, 2023 at 1:24 AM Sam James via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> This fixes errors like:
> ```
> In file included from /usr/include/pthread.h:30,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/riscv64-gentoo-linux-musl/bits/gthr-default.h:35,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/riscv64-gentoo-linux-musl/bits/gthr.h:148,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/ext/atomicity.h:35,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/bits/ios_base.h:39,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/ios:42,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/istream:38,
> from /usr/lib/gcc/riscv64-gentoo-linux-musl/12/include/g++-v12/sstream:38,
> from /var/tmp/portage/sys-devel/gcc-13.0.1_pre20230305/work/gcc-13-20230305/gcc/config/riscv/genrvv-type-indexer.cc:22:
> /usr/include/sched.h:84:7: error: attempt to use poisoned "calloc"
> 84 | void *calloc(size_t, size_t);
> | ^
> /usr/include/sched.h:124:36: error: attempt to use poisoned "calloc"
> 124 | #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n)))
> | ^
> make[3]: *** [Makefile:2855: build/genrvv-type-indexer.o] Error 1
> ```
>
> See also 3b21c21f3f5726823e19728fdd1571a14aae0fb3 and 49d508065bdd36fb1a9b6aad9666b1edb5e06474,
> which was fixed in PR106102.
The system.h change is OK
> gcc/ChangeLog:
> * config/riscv/genrvv-type-indexer.cc: Avoid calloc() poisoning on musl by
> including <sstream> earlier.
> * system.h: Add INCLUDE_SSTREAM.
>
> Signed-off-by: Sam James <sam@gentoo.org>
> ---
> gcc/config/riscv/genrvv-type-indexer.cc | 2 +-
> gcc/system.h | 4 ++++
> 2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/config/riscv/genrvv-type-indexer.cc b/gcc/config/riscv/genrvv-type-indexer.cc
> index 0ef1d766002..e677b55290c 100644
> --- a/gcc/config/riscv/genrvv-type-indexer.cc
> +++ b/gcc/config/riscv/genrvv-type-indexer.cc
> @@ -14,12 +14,12 @@ along with GCC; see the file COPYING3. If not see
> <http://www.gnu.org/licenses/>. */
>
> #include "bconfig.h"
> +#define INCLUDE_SSTREAM
> #include "system.h"
> #include "errors.h"
>
> #include "coretypes.h"
>
> -#include <sstream>
> #include <assert.h>
> #include <math.h>
>
> diff --git a/gcc/system.h b/gcc/system.h
> index 64cd5a49258..cf45db3f97e 100644
> --- a/gcc/system.h
> +++ b/gcc/system.h
> @@ -751,6 +751,10 @@ extern int vsnprintf (char *, size_t, const char *, va_list);
> # include <mutex>
> #endif
>
> +#ifdef INCLUDE_SSTREAM
> +# include <sstream>
> +#endif
> +
> #ifdef INCLUDE_MALLOC_H
> #if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
> #include <malloc.h>
> --
> 2.40.0
>
next prev parent reply other threads:[~2023-03-14 9:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-14 0:23 Sam James
2023-03-14 0:23 ` [PATCH v4 2/2] gcc: Drop obsolete INCLUDE_PTHREAD_H Sam James
2023-03-14 0:27 ` juzhe.zhong
2023-03-14 13:45 ` Kito Cheng
2023-03-14 14:44 ` Jeff Law
2023-03-31 18:44 ` [PATCH v4 2/2] gcc: Drop obsolete INCLUDE_PTHREAD_H (ping) Sam James
2023-04-02 19:54 ` Jeff Law
2023-04-02 20:06 ` Andrew Pinski
2023-04-02 20:07 ` Jeff Law
2023-04-02 20:13 ` Andrew Pinski
2023-04-02 20:16 ` Sam James
2023-03-14 9:06 ` Richard Biener [this message]
2023-03-14 13:44 ` [PATCH v4 1/2] RISC-V: Avoid calloc() poisoning on musl Kito Cheng
2023-03-14 13:48 ` Kito Cheng
2023-03-14 22:06 ` Sam James
2023-03-14 21:39 ` Sam James
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