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bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architect
From: |
Andreas Schwab |
Subject: |
bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture |
Date: |
Thu, 10 Nov 2016 18:00:41 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
On Nov 10 2016, Paul Eggert <eggert@cs.ucla.edu> wrote:
> On 11/10/2016 01:52 AM, Andreas Schwab wrote:
>>> I'm curious about what the difference actually is,
>> 17851608 bytes.
>
> Thanks, and now I'm curious about where that difference comes from. I
> assume that unexelf.c code like this:
>
> #ifdef HAVE_SBRK
> new_break = sbrk (0);
> #else
> new_break = (byte *) old_bss_addr + old_bss_size + 17851608;
> #endif
>
> would not be a good idea, even if it happens to work on this particular
> ARM64 build, as the number 17851608 must be specific to the platform
> and/or the build. (The number is 0 on x86-64, for example.) But how can I
> compute the number?
If you don't dump the heap then you miss everything allocated through
lisp_malloc that isn't explicitly copied to pure space.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, (continued)
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Eli Zaretskii, 2016/11/10
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Richard Stallman, 2016/11/09
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/09
bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Ashish SHUKLA, 2016/11/08
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/09
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Andreas Schwab, 2016/11/09
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Eli Zaretskii, 2016/11/09
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/09
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Andreas Schwab, 2016/11/10
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/10
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture,
Andreas Schwab <=
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/10
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Andreas Schwab, 2016/11/10
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/10
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Eli Zaretskii, 2016/11/17
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Ashish SHUKLA, 2016/11/18
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/18
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Brooks Davis, 2016/11/18
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Ed Maste, 2016/11/18
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Paul Eggert, 2016/11/18
- bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture, Eli Zaretskii, 2016/11/19