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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 21/35] Document that -singlestep command line option is
deprecated
Date: Tue, 2 May 2023 13:14:45 +0100
Message-Id: <20230502121459.2422303-22-peter.maydell@linaro.org>
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Document that the -singlestep command line option is now
deprecated, as it is replaced by either the TCG accelerator
property 'one-insn-per-tb' for system emulation or the new
'-one-insn-per-tb' option for usermode emulation, and remove
the only use of the deprecated syntax from a README.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daud=C3=A9 <philmd@linaro.org>
Message-id: 20230417164041.684562-7-peter.maydell@linaro.org
---
docs/about/deprecated.rst | 16 ++++++++++++++++
qemu-options.hx | 5 +++--
tcg/tci/README | 2 +-
3 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 1ca9dc33d61..3c62671dac1 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -111,6 +111,22 @@ Use ``-machine acpi=3Doff`` instead.
The HAXM project has been retired (see https://github.com/intel/haxm#statu=
s).
Use "whpx" (on Windows) or "hvf" (on macOS) instead.
=20
+``-singlestep`` (since 8.1)
+'''''''''''''''''''''''''''
+
+The ``-singlestep`` option has been turned into an accelerator property,
+and given a name that better reflects what it actually does.
+Use ``-accel tcg,one-insn-per-tb=3Don`` instead.
+
+User-mode emulator command line arguments
+-----------------------------------------
+
+``-singlestep`` (since 8.1)
+'''''''''''''''''''''''''''
+
+The ``-singlestep`` option has been given a name that better reflects
+what it actually does. For both linux-user and bsd-user, use the
+new ``-one-insn-per-tb`` option instead.
=20
QEMU Machine Protocol (QMP) commands
------------------------------------
diff --git a/qemu-options.hx b/qemu-options.hx
index b8bc94f370c..af9e85157d6 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4192,10 +4192,11 @@ SRST
ERST
=20
DEF("singlestep", 0, QEMU_OPTION_singlestep, \
- "-singlestep always run in singlestep mode\n", QEMU_ARCH_ALL)
+ "-singlestep deprecated synonym for -accel tcg,one-insn-per-tb=3Do=
n\n", QEMU_ARCH_ALL)
SRST
``-singlestep``
- Run the emulation in single step mode.
+ This is a deprecated synonym for the TCG accelerator property
+ ``one-insn-per-tb``.
ERST
=20
DEF("preconfig", 0, QEMU_OPTION_preconfig, \
diff --git a/tcg/tci/README b/tcg/tci/README
index f72a40a395a..4a8b5b54018 100644
--- a/tcg/tci/README
+++ b/tcg/tci/README
@@ -49,7 +49,7 @@ The only difference from running QEMU with TCI to running=
without TCI
should be speed. Especially during development of TCI, it was very
useful to compare runs with and without TCI. Create /tmp/qemu.log by
=20
- qemu-system-i386 -d in_asm,op_opt,cpu -D /tmp/qemu.log -singlestep
+ qemu-system-i386 -d in_asm,op_opt,cpu -D /tmp/qemu.log -accel tcg,=
one-insn-per-tb=3Don
=20
once with interpreter and once without interpreter and compare the resulti=
ng
qemu.log files. This is also useful to see the effects of additional
--=20
2.34.1