From: Joseph Myers <joseph@codesourcery.com>
To: Vincent Chen <vincent.chen@sifive.com>
Cc: libc-alpha@sourceware.org, andrew@sifive.com
Subject: Re: [RFC 5/5] RISC-V: Expand PTHREAD_STACK_MIN to support RVV environment
Date: Tue, 14 Sep 2021 23:43:22 +0000 [thread overview]
Message-ID: <alpine.DEB.2.22.394.2109142340040.1167011@digraph.polyomino.org.uk> (raw)
In-Reply-To: <1631497278-29829-6-git-send-email-vincent.chen@sifive.com>
On Mon, 13 Sep 2021, Vincent Chen wrote:
> In order to support all pthread operations in the RVV environment, here
> PTHREAD_STACK_MIN is set to 4 times GLRO(dl_minsigstacksize), and the
> default PTHREAD_STACK_MIN is expanded to 20K bytes.
A change to PTHREAD_STACK_MIN has been considered an ABI change in the
past, requiring new symbol versions for pthread_attr_setstack and
pthread_attr_setstacksize to ensure that binaries built with the old
PTHREAD_STACK_MIN definition continue to work rather than failing because
the old size is too small. You may need symbol versioning updates for
those functions in RISC-V if you make such a change. (All the existing
versioning support for this in architecture-independent files assumes the
change in value was done before libpthread was merged into libc, so there
will be some extra work involved in being the first architecture to
increase PTHREAD_STACK_MIN after that merge.)
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2021-09-14 23:43 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-13 1:41 [RFC patch 0/5] RISC-V: Add vector ISA support Vincent Chen
2021-09-13 1:41 ` [RFC patch 1/5] RISC-V: Remove riscv-specific sigcontext.h Vincent Chen
2021-09-13 1:41 ` [RFC patch 2/5] RISC-V: Reserve about 5K space in mcontext_t to support future ISA expansion Vincent Chen
2021-09-13 13:44 ` Florian Weimer via Libc-alpha
2021-09-13 13:52 ` Rich Felker
2021-09-16 8:02 ` Vincent Chen
2021-09-16 8:14 ` Florian Weimer via Libc-alpha
2021-09-18 3:04 ` Vincent Chen
2022-12-09 3:39 ` RISCV kernel struct sigcontext expansion for V regs and potential glibc ABI break (was Re: [RFC patch 2/5] RISC-V: Reserve about 5K space in mcontext_t to support future ISA expansion.) Vineet Gupta
2022-12-09 4:03 ` Vineet Gupta
2022-12-20 20:05 ` Adding V-ext regs to signal context w/o expanding kernel struct sigcontext to avoid glibc ABI break Vineet Gupta
2022-12-21 15:53 ` Vincent Chen
2022-12-21 19:45 ` Vineet Gupta
2022-12-21 19:52 ` Vineet Gupta
2022-12-22 3:37 ` Vincent Chen
2022-12-22 19:25 ` Vineet Gupta
2022-12-23 2:27 ` Vincent Chen
2022-12-23 19:42 ` Vineet Gupta
2022-12-22 5:32 ` Richard Henderson via Libc-alpha
2022-12-22 18:33 ` Andy Chiu
2022-12-22 20:27 ` Vineet Gupta
2022-12-28 10:53 ` Andy Chiu
2023-01-03 19:17 ` Vineet Gupta
2023-01-04 16:34 ` Andy Chiu
2023-01-04 20:46 ` Vineet Gupta
2023-01-04 21:29 ` Philipp Tomsich
2023-01-04 21:37 ` Andrew Waterman
2023-01-04 22:43 ` Vineet Gupta
2023-01-09 13:33 ` Kito Cheng
2023-01-09 19:16 ` Vineet Gupta
2023-01-10 13:21 ` Kito Cheng
2023-01-10 18:07 ` Auto-enabling V unit and/or use of elf attributes (was Re: Adding V-ext regs to signal context w/o expanding kernel struct sigcontext to avoid glibc ABI break) Vineet Gupta
2023-01-11 1:22 ` Richard Henderson via Libc-alpha
2023-01-11 4:28 ` Jeff Law
2023-01-11 4:57 ` Richard Henderson via Libc-alpha
2023-01-11 5:07 ` Jeff Law
2023-01-11 6:00 ` Andy Chiu
2023-01-11 6:20 ` Jeff Law
2023-01-11 9:28 ` Andy Chiu
2023-01-11 12:13 ` Andy Chiu
2023-01-23 12:17 ` Conor Dooley via Libc-alpha
2023-01-23 13:29 ` Andy Chiu
2023-01-11 5:05 ` Anup Patel
2023-01-11 5:23 ` Richard Henderson via Libc-alpha
2022-12-22 22:33 ` Adding V-ext regs to signal context w/o expanding kernel struct sigcontext to avoid glibc ABI break Richard Henderson via Libc-alpha
2022-12-22 23:47 ` Conor Dooley via Libc-alpha
2022-12-22 23:58 ` Vineet Gupta
2022-12-22 20:30 ` Vineet Gupta
2022-12-22 21:38 ` Andrew Waterman
2022-12-22 1:50 ` Vincent Chen
2022-12-22 5:34 ` Richard Henderson via Libc-alpha
2021-09-16 23:56 ` [RFC patch 2/5] RISC-V: Reserve about 5K space in mcontext_t to support future ISA expansion Ben Woodard via Libc-alpha
2021-09-18 3:15 ` Vincent Chen
2021-09-20 16:41 ` DJ Delorie via Libc-alpha
2021-09-20 17:10 ` Florian Weimer via Libc-alpha
2021-10-01 1:43 ` Vincent Chen
2021-10-01 12:08 ` Adhemerval Zanella via Libc-alpha
2021-09-17 17:03 ` Rich Felker
2021-09-18 3:19 ` Vincent Chen
2021-09-13 1:41 ` [RFC patch 3/5] RISC-V: Save and restore VCSR when doing user context switch Vincent Chen
2021-09-14 23:48 ` Joseph Myers
2021-09-15 0:13 ` Andrew Waterman
2021-09-16 9:20 ` Vincent Chen
2021-10-01 13:04 ` Adhemerval Zanella via Libc-alpha
2021-09-13 1:41 ` [RFC patch 4/5] RISC-V: Extend MINSIGSTKSZ and SIGSTKSZ to backup RVV registers Vincent Chen
2021-09-13 13:51 ` Rich Felker
2021-09-16 9:25 ` Vincent Chen
2021-09-13 1:41 ` [RFC 5/5] RISC-V: Expand PTHREAD_STACK_MIN to support RVV environment Vincent Chen
2021-09-14 23:43 ` Joseph Myers [this message]
2021-09-15 10:42 ` Florian Weimer via Libc-alpha
2021-09-15 14:31 ` H.J. Lu via Libc-alpha
2021-09-16 10:21 ` Vincent Chen
2021-09-13 19:11 ` [RFC patch 0/5] RISC-V: Add vector ISA support Vineet Gupta via Libc-alpha
2021-09-15 19:37 ` Jim Wilson
2021-11-09 19:21 ` Darius Rad
2021-11-09 19:30 ` Andrew Waterman
2021-11-09 22:03 ` Darius Rad
2021-11-09 22:18 ` Andrew Waterman
2021-11-10 11:39 ` Darius Rad
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