From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: philmd@redhat.com, i@maskray.me, berrange@redhat.com
Subject: Re: [PATCH v2 0/7] configure: Improve PIE and other linkage
Date: Mon, 6 Jan 2020 12:57:38 +1000 [thread overview]
Message-ID: <81a243a2-3bf5-a6b0-e6b0-e941d29c8d10@linaro.org> (raw)
In-Reply-To: <20191218223441.23852-1-richard.henderson@linaro.org>
On 12/19/19 8:34 AM, Richard Henderson wrote:
> This begins by dropping the -Ttext-segment stuff, which Fangrui Song
> correctly points out does not work with lld. But it's also obsolete,
> so instead of adding support for lld's --image-base, remove it all.
>
> Then, remove some other legacy random addresses that were supposed
> to apply to softmmu, but didn't really make any sense, and aren't
> used anyway when PIE is used, which is the default with a modern
> linux distribution.
>
> Then, clean up some of the configure logic surrounding PIE, and its
> current non-application to non-x86.
>
> Finally, add support for static-pie linking.
>
> Changes in v2:
> - Remove mention of config-host.ld from make distclean
> - Do not split -z,rodata/-z,now into two tests
> - Fix --disable-pie --static
>
> Tested in conjunction with AJB's
> configure: allow disable of cross compilation container
> https://lists.gnu.org/archive/html/qemu-devel/2019-12/msg02943.html
>
> as otherwise check-tcg simply doesn't work on aarch64 if you happen
> to have docker installed.
Ping. Patches 3 and 7 still unreviewed.
r~
prev parent reply other threads:[~2020-01-06 2:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 22:34 [PATCH v2 0/7] configure: Improve PIE and other linkage Richard Henderson
2019-12-18 22:34 ` [PATCH v2 1/7] configure: Drop adjustment of textseg Richard Henderson
2020-01-07 11:34 ` Alex Bennée
2019-12-18 22:34 ` [PATCH v2 2/7] tcg: Remove softmmu code_gen_buffer fixed address Richard Henderson
2020-01-07 11:35 ` Alex Bennée
2019-12-18 22:34 ` [PATCH v2 3/7] configure: Do not force pie=no for non-x86 Richard Henderson
2020-01-07 11:37 ` Philippe Mathieu-Daudé
2020-01-07 12:58 ` Alex Bennée
2019-12-18 22:34 ` [PATCH v2 4/7] configure: Always detect -no-pie toolchain support Richard Henderson
2020-01-07 13:16 ` Alex Bennée
2020-01-08 0:45 ` Richard Henderson
2019-12-18 22:34 ` [PATCH v2 5/7] configure: Unnest detection of -z,relro and -z,now Richard Henderson
2019-12-18 22:46 ` [PATCH v2 5/7] configure: Unnest detection of -z, relro and -z, now Philippe Mathieu-Daudé
2019-12-19 7:11 ` Fangrui Song
2020-01-07 13:18 ` Alex Bennée
2019-12-18 22:34 ` [PATCH v2 6/7] configure: Override the os default with --disable-pie Richard Henderson
2020-01-07 13:24 ` Alex Bennée
2019-12-18 22:34 ` [PATCH v2 7/7] configure: Support -static-pie if requested Richard Henderson
2020-01-07 13:45 ` Alex Bennée
2020-01-06 2:57 ` Richard Henderson [this message]
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