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docs/devel: clean-up qemu invocations in tcg-plugins 

We currently have the final binaries in the root of the build dir so
the build prefix is superfluous. Additionally add a shell prompt to be
more in line with the rest of the code.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-38-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2022-09-29 12:42:17 +01:00
parent 5413c37f3b
commit 1d0603a990
1 changed files with 9 additions and 9 deletions
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18
docs/devel/tcg-plugins.rst
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@ -172,7 +172,7 @@ slightly faster (but not thread safe) counters.
Example:: Example::
./aarch64-linux-user/qemu-aarch64 \ $ qemu-aarch64 \
-plugin contrib/plugins/libhotblocks.so -d plugin \ -plugin contrib/plugins/libhotblocks.so -d plugin \
./tests/tcg/aarch64-linux-user/sha1 ./tests/tcg/aarch64-linux-user/sha1
SHA1=15dd99a1991e0b3826fede3deffc1feba42278e6 SHA1=15dd99a1991e0b3826fede3deffc1feba42278e6
@ -186,7 +186,7 @@ Example::
Similar to hotblocks but this time tracks memory accesses:: Similar to hotblocks but this time tracks memory accesses::
./aarch64-linux-user/qemu-aarch64 \ $ qemu-aarch64 \
-plugin contrib/plugins/libhotpages.so -d plugin \ -plugin contrib/plugins/libhotpages.so -d plugin \
./tests/tcg/aarch64-linux-user/sha1 ./tests/tcg/aarch64-linux-user/sha1
SHA1=15dd99a1991e0b3826fede3deffc1feba42278e6 SHA1=15dd99a1991e0b3826fede3deffc1feba42278e6
@ -220,7 +220,7 @@ counted. You can give a value to the ``count`` argument for a class of
instructions to break it down fully, so for example to see all the system instructions to break it down fully, so for example to see all the system
registers accesses:: registers accesses::
./aarch64-softmmu/qemu-system-aarch64 $(QEMU_ARGS) \ $ qemu-system-aarch64 $(QEMU_ARGS) \
-append "root=/dev/sda2 systemd.unit=benchmark.service" \ -append "root=/dev/sda2 systemd.unit=benchmark.service" \
-smp 4 -plugin ./contrib/plugins/libhowvec.so,count=sreg -d plugin -smp 4 -plugin ./contrib/plugins/libhowvec.so,count=sreg -d plugin
@ -288,10 +288,10 @@ for the plugin is a path for the socket the two instances will
communicate over:: communicate over::
./sparc-softmmu/qemu-system-sparc -monitor none -parallel none \ $ qemu-system-sparc -monitor none -parallel none \
-net none -M SS-20 -m 256 -kernel day11/zImage.elf \ -net none -M SS-20 -m 256 -kernel day11/zImage.elf \
-plugin ./contrib/plugins/liblockstep.so,sockpath=lockstep-sparc.sock \ -plugin ./contrib/plugins/liblockstep.so,sockpath=lockstep-sparc.sock \
-d plugin,nochain -d plugin,nochain
which will eventually report:: which will eventually report::
@ -348,7 +348,7 @@ Please be aware that this will generate a lot of output.
The plugin needs default argument:: The plugin needs default argument::
qemu-system-arm $(QEMU_ARGS) \ $ qemu-system-arm $(QEMU_ARGS) \
-plugin ./contrib/plugins/libexeclog.so -d plugin -plugin ./contrib/plugins/libexeclog.so -d plugin
which will output an execution trace following this structure:: which will output an execution trace following this structure::
@ -365,10 +365,10 @@ which will output an execution trace following this structure::
0, 0x10c8, 0xfff96c43, "ldr r3, [r0, #0x44]", load, 0x200000e4, RAM 0, 0x10c8, 0xfff96c43, "ldr r3, [r0, #0x44]", load, 0x200000e4, RAM
the output can be filtered to only track certain instructions or the output can be filtered to only track certain instructions or
addresses using the `ifilter` or `afilter` options. You can stack the addresses using the ``ifilter`` or ``afilter`` options. You can stack the
arguments if required:: arguments if required::
qemu-system-arm $(QEMU_ARGS) \ $ qemu-system-arm $(QEMU_ARGS) \
-plugin ./contrib/plugins/libexeclog.so,ifilter=st1w,afilter=0x40001808 -d plugin -plugin ./contrib/plugins/libexeclog.so,ifilter=st1w,afilter=0x40001808 -d plugin
- contrib/plugins/cache.c - contrib/plugins/cache.c
@ -377,7 +377,7 @@ Cache modelling plugin that measures the performance of a given L1 cache
configuration, and optionally a unified L2 per-core cache when a given working configuration, and optionally a unified L2 per-core cache when a given working
set is run:: set is run::
qemu-x86_64 -plugin ./contrib/plugins/libcache.so \ $ qemu-x86_64 -plugin ./contrib/plugins/libcache.so \
-d plugin -D cache.log ./tests/tcg/x86_64-linux-user/float_convs -d plugin -D cache.log ./tests/tcg/x86_64-linux-user/float_convs
will report the following:: will report the following::