| Message ID | 20240126084001.879548-1-thuth@redhat.com |
|---|---|
| Headers | show |
| Series | target/arm: Allow compilation without CONFIG_ARM_V7M | expand |
Thomas Huth <thuth@redhat.com> writes: > We've got a switch to disable v7m code since a long time - but it > currently cannot be disabled since linking then fails due to missing > functions. But thanks to the clean-ups that have been done during the > past years, it's not that difficult anymore to finally make it possible > to disable CONFIG_ARM_V7M: We just have to move some v7m-related code > out of cpu32.c to a separate file (that we only compile if the switch > CONFIG_ARM_V7M is enabled) and make sure to use the stub functions in > m_helper.c if it is disabled. Then we can finally remove the hard-coded > "select ARM_V7M" from the Kconfig file. > > Thomas Huth (3): > target/arm: Move v7m-related code from cpu32.c into a separate file > target/arm/tcg/m_helper.c: Include the full helpers only with > CONFIG_ARM_V7M > target/arm/Kconfig: Stop requiring CONFIG_ARM_V7M > > target/arm/tcg/cpu-v7m.c | 292 +++++++++++++++++++++++++++++++++++++ > target/arm/tcg/cpu32.c | 261 --------------------------------- > target/arm/tcg/m_helper.c | 3 +- > target/arm/Kconfig | 4 - > target/arm/tcg/meson.build | 4 + > 5 files changed, 298 insertions(+), 266 deletions(-) > create mode 100644 target/arm/tcg/cpu-v7m.c Tested-by: Fabiano Rosas <farosas@suse.de>
We've got a switch to disable v7m code since a long time - but it currently cannot be disabled since linking then fails due to missing functions. But thanks to the clean-ups that have been done during the past years, it's not that difficult anymore to finally make it possible to disable CONFIG_ARM_V7M: We just have to move some v7m-related code out of cpu32.c to a separate file (that we only compile if the switch CONFIG_ARM_V7M is enabled) and make sure to use the stub functions in m_helper.c if it is disabled. Then we can finally remove the hard-coded "select ARM_V7M" from the Kconfig file. Thomas Huth (3): target/arm: Move v7m-related code from cpu32.c into a separate file target/arm/tcg/m_helper.c: Include the full helpers only with CONFIG_ARM_V7M target/arm/Kconfig: Stop requiring CONFIG_ARM_V7M target/arm/tcg/cpu-v7m.c | 292 +++++++++++++++++++++++++++++++++++++ target/arm/tcg/cpu32.c | 261 --------------------------------- target/arm/tcg/m_helper.c | 3 +- target/arm/Kconfig | 4 - target/arm/tcg/meson.build | 4 + 5 files changed, 298 insertions(+), 266 deletions(-) create mode 100644 target/arm/tcg/cpu-v7m.c