From: Sebastian Huber <sebastian.huber@embedded-brains.de>
To: Keith Packard <keithp@keithp.com>, gcc-patches@gcc.gnu.org
Cc: Richard Sandiford <richard.sandiford@arm.com>
Subject: Re: [PATCH 3/3] Add '--oslib=' option when default C library is picolibc
Date: Mon, 21 Nov 2022 08:11:06 +0100 [thread overview]
Message-ID: <1ca4a591-2d0f-48fa-dce0-613808904c09@embedded-brains.de> (raw)
In-Reply-To: <20220903060707.1622470-4-keithp@keithp.com>
On 03/09/2022 08:07, Keith Packard via Gcc-patches wrote:
> diff --git a/gcc/config/arm/elf.h b/gcc/config/arm/elf.h
> index 3d111433ede..dc5b9374814 100644
> --- a/gcc/config/arm/elf.h
> +++ b/gcc/config/arm/elf.h
> @@ -150,3 +150,8 @@
> #undef L_floatundisf
> #endif
>
> +#if DEFAULT_LIBC == LIBC_PICOLIBC
> +#undef LIB_SPEC
> +#define LIB_SPEC "--start-group %(libgcc) -lc %{-oslib=*:-l%*} --end-group"
> +#endif
> +
Can't you add a gcc/config/picolibc.h (similar to gcc/config/rtems.h)
which is placed in gcc/config.gcc with something like this:
picolibc)
default_libc=LIBC_PICOLIBC
tm_file="${tm_file} picolibc.h"
;;
In this header place:
#undef LIB_SPEC
#define LIB_SPEC "--start-group %(libgcc) -lc %{-oslib=*:-l%*} --end-group"
#endif
This avoids having to modify all the ELF-specific files.
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next prev parent reply other threads:[~2022-11-21 7:11 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-24 18:04 [PATCH 0/3] picolibc: Add picolibc linking help Keith Packard
2022-08-24 18:04 ` [PATCH 1/3] picolibc: Allow default libc to be specified to configure Keith Packard
2022-08-24 18:04 ` [PATCH 2/3] picolibc: Add newlib and picolibc as default C library choices Keith Packard
2022-08-24 18:04 ` [PATCH 3/3] picolibc: Add '--oslib=' option when default C library is picolibc Keith Packard
2022-08-24 18:24 ` [PATCH 0/3] picolibc: Add picolibc linking help Andrew Pinski
2022-08-24 19:32 ` Keith Packard
2022-08-25 7:16 ` Kito Cheng
2022-08-25 17:38 ` Keith Packard
2022-09-02 12:36 ` Richard Sandiford
2022-09-03 6:02 ` Keith Packard
2022-09-03 6:07 ` Keith Packard
2022-09-03 6:07 ` [PATCH 1/3] Allow default libc to be specified to configure Keith Packard
2022-09-03 6:07 ` [PATCH 2/3] Add newlib and picolibc as default C library choices Keith Packard
2022-09-03 6:07 ` [PATCH 3/3] Add '--oslib=' option when default C library is picolibc Keith Packard
2022-11-21 7:11 ` Sebastian Huber [this message]
2023-02-05 7:10 ` [PATCH 0/3] picolibc: Add picolibc linking help (v3) Keith Packard
2023-02-05 7:10 ` [PATCH 1/3] Allow default libc to be specified to configure Keith Packard
2023-02-05 7:10 ` [PATCH 2/3] Add newlib and picolibc as default C library choices Keith Packard
2023-02-05 7:10 ` [PATCH 3/3] Add '--oslib=' option when default C library is picolibc Keith Packard
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