From: Joseph Myers <joseph@codesourcery.com>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: "linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>,
"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>
Subject: Re: __syscall_error (was Re: [PATCH v4 13/15] ARC: Build Infrastructure)
Date: Wed, 1 Apr 2020 17:06:16 +0000 [thread overview]
Message-ID: <alpine.DEB.2.21.2004011703160.3007@digraph.polyomino.org.uk> (raw)
In-Reply-To: <3b5edadd-b29d-f138-c440-ed6d38da6a67@synopsys.com>
On Wed, 1 Apr 2020, Vineet Gupta via Libc-alpha wrote:
> > If there's an inline function referring to this in an installed header, we
> > can consider whether that inline function *should* be referring to it.
> > Similarly if there's a reference in crt*.o / lib*_nonshared.a / GCC static
> > libraries, we can consider if that reference *should* be there or if the
> > function in question should actually be calling some function from libc.so
> > that does the syscall there.
>
> The assembler macros in syscall template for generating wrappers use
> __syscall_error (sysdeps/unix/sysv/linux/arc/sysdep.h).
That's an internal header. It might be included in code used in crt*.o /
lib*_nonshared.a, but can't be included from any installed header, so
can't result in references in inline functions from installed headers.
> If public Version is removed, I get errors like below:
What if you move it to GLIBC_PRIVATE? My concern isn't that it's exported
from the shared library, it's that it's exported at a public version.
A public version is only needed if there are references in code that might
be statically linked into user binaries that use shared libc. Which means
the symbol being used in some .o or .a file that gets linked into user
binaries in that case (crt*.o, lib*_nonshared.a). You can examine the
symbols used by such objects after building and installing glibc.
--
Joseph S. Myers
joseph@codesourcery.com
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next prev parent reply other threads:[~2020-04-01 17:06 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-13 3:04 [PATCH v4 00/15] glibc port to ARC processors Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 01/15] ARC: add definitions to elf/elf.h Vineet Gupta
2020-03-26 1:37 ` Joseph Myers
2020-03-26 1:52 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 02/15] ARC: ABI Implementation Vineet Gupta
2020-03-26 1:52 ` Joseph Myers
2020-03-26 2:39 ` Vineet Gupta
2020-03-26 18:48 ` Joseph Myers
2020-03-27 0:37 ` Vineet Gupta
2020-03-27 23:33 ` Vineet Gupta
2020-03-27 23:35 ` Joseph Myers
2020-03-27 23:47 ` Vineet Gupta
2020-03-31 21:08 ` Big Endian support as multi-ABI (was Re: [PATCH v4 02/15] ARC: ABI Implementation) Vineet Gupta
2020-03-31 21:27 ` Joseph Myers
2020-03-31 21:35 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 03/15] ARC: startup and dynamic linking code Vineet Gupta
2020-03-26 1:55 ` Joseph Myers
2020-03-26 2:45 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 04/15] ARC: Thread Local Storage support Vineet Gupta
2020-03-26 1:57 ` Joseph Myers
2020-03-26 2:47 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 05/15] ARC: Atomics and Locking primitives Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 06/15] ARC: math soft float support Vineet Gupta
2020-03-26 1:59 ` Joseph Myers
2020-03-26 2:48 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 07/15] ARC: hardware floating point support Vineet Gupta
2020-03-26 2:06 ` Joseph Myers
2020-03-26 3:19 ` Vineet Gupta
2020-03-26 23:22 ` Joseph Myers
2020-03-27 1:50 ` Vineet Gupta
2020-03-27 18:37 ` Joseph Myers
2020-03-27 18:53 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 08/15] ARC: Linux Syscall Interface Vineet Gupta
2020-03-26 23:52 ` Joseph Myers
2020-03-27 4:34 ` Vineet Gupta
2020-03-27 18:38 ` Joseph Myers
2020-03-13 3:04 ` [PATCH v4 09/15] ARC: Linux ABI Vineet Gupta
2020-03-27 0:38 ` Joseph Myers
2020-03-27 4:45 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 10/15] ARC: Linux Startup and Dynamic Loading Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 11/15] ARC: ABI lists Vineet Gupta
2020-03-27 0:40 ` Joseph Myers
2020-03-27 4:36 ` Vineet Gupta
2020-03-27 18:39 ` Joseph Myers
2020-03-27 19:09 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 12/15] ARC: Update syscall-names.list for ARC specific syscalls Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 13/15] ARC: Build Infrastructure Vineet Gupta
2020-03-27 22:47 ` Joseph Myers
2020-03-28 6:42 ` Vineet Gupta
2020-03-31 22:02 ` Vineet Gupta
2020-03-31 22:48 ` Joseph Myers
2020-04-01 0:44 ` __syscall_error (was Re: [PATCH v4 13/15] ARC: Build Infrastructure) Vineet Gupta
2020-04-01 7:58 ` Andreas Schwab
2020-04-01 21:38 ` Vineet Gupta
2020-04-01 17:06 ` Joseph Myers [this message]
2020-04-02 0:00 ` Vineet Gupta
2020-04-02 8:50 ` Florian Weimer
2020-04-02 20:22 ` Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 14/15] build-many-glibcs.py: Enable ARC builds Vineet Gupta
2020-03-13 3:04 ` [PATCH v4 15/15] Documentation for ARC port Vineet Gupta
2020-03-27 22:49 ` Joseph Myers
2020-03-27 23:56 ` Vineet Gupta
2020-03-28 0:01 ` Joseph Myers
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