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[1/1] meson: Deprecate 32-bit host support

Message ID 20250128004254.33442-2-richard.henderson@linaro.org
State New
Headers show
Series meson: Deprecate 32-bit host systems | expand

Commit Message

Richard Henderson Jan. 28, 2025, 12:42 a.m. UTC 
We deprecated i686 system mode support for qemu 8.0.
However, to make real cleanups to TCG we need to remove
all 32-bit hosts.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 docs/about/deprecated.rst | 8 ++++++++
 meson.build               | 6 ++----
 2 files changed, 10 insertions(+), 4 deletions(-)
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Patch

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 4a3c302962..a200f4fd28 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -204,6 +204,14 @@  is going to be so much slower it wouldn't make sense for any serious
 instrumentation. Due to implementation differences there will also be
 anomalies in things like memory instrumentation.
 
+32-bit host operating systems (since 10.0)
+''''''''''''''''''''''''''''''''''''''''''
+
+Keeping the 32-bit support alive is a substantial burden for the QEMU
+project. Thus QEMU will soon drop the support for 32-bit host systems.
+Recent testing on 32-bit host OS has been inadequate at best, apparently
+due to lack of interest and usage on such hosts.
+
 System emulator CPUs
 --------------------
 
diff --git a/meson.build b/meson.build
index 15a066043b..0bf5c93777 100644
--- a/meson.build
+++ b/meson.build
@@ -4834,14 +4834,12 @@  if host_arch == 'unknown'
     message('configure has succeeded and you can continue to build, but')
     message('QEMU will use a slow interpreter to emulate the target CPU.')
   endif
-elif host_arch == 'mips'
+elif cc.sizeof('void *') < 8
   message()
   warning('DEPRECATED HOST CPU')
   message()
   message('Support for CPU host architecture ' + cpu + ' is going to be')
-  message('dropped as soon as the QEMU project stops supporting Debian 12')
-  message('("Bookworm"). Going forward, the QEMU project will not guarantee')
-  message('that QEMU will compile or work on this host CPU.')
+  message('dropped in a future QEMU release.')
 endif
 
 if not supported_oses.contains(host_os)