summary refs log tree commit diff stats
diff options
context:
space:
mode:
authorRichard Henderson <richard.henderson@linaro.org>2025-01-27 16:22:24 -0800
committerRichard Henderson <richard.henderson@linaro.org>2025-02-08 12:41:40 -0800
commit6d701c9bac1d3571e9ad511e01b27df7237f0b13 (patch)
tree9df0ce87a223e4fa515ad49076215715a56dacb3
parentacce728cbc6c154b215dfc8d05c12d8fcc2483d5 (diff)
downloadfocaccia-qemu-6d701c9bac1d3571e9ad511e01b27df7237f0b13.tar.gz
focaccia-qemu-6d701c9bac1d3571e9ad511e01b27df7237f0b13.zip
meson: Deprecate 32-bit host support
We deprecated i686 system mode support for qemu 8.0.  However, to
make real cleanups to TCG we need to deprecate all 32-bit hosts.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r--docs/about/deprecated.rst7
-rw-r--r--meson.build8
2 files changed, 10 insertions, 5 deletions
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 4a3c302962..7c61d0ba16 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -204,6 +204,13 @@ 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 32-bit host support alive is a substantial burden for the
+QEMU project.  Thus QEMU will in future drop the support for all
+32-bit host systems.
+
 System emulator CPUs
 --------------------
 
diff --git a/meson.build b/meson.build
index ec51827f40..387490d922 100644
--- a/meson.build
+++ b/meson.build
@@ -4841,14 +4841,12 @@ 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 host_long_bits < 64
   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('Support for 32-bit CPU host architecture ' + cpu + ' is going')
+  message('to be dropped in a future QEMU release.')
 endif
 
 if not supported_oses.contains(host_os)