| Message ID | 20240308141051.536599-1-thuth@redhat.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | target/arm: Allow compilation without CONFIG_ARM_V7M | expand |
On Fri, 8 Mar 2024 at 14:11, Thomas Huth <thuth@redhat.com> wrote: > > 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. I've applied patch 1 to target-arm.next; thanks. -- PMM
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. v3: - Rebase to current master branch - Make sure that the stubs use g_assert_not_reached() in the second patch v2: - Updated a comment - Avoid #ifdef in cpu-v7m.c, handle it via meson.build instead 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 | 290 +++++++++++++++++++++++++++++++++++++ target/arm/tcg/cpu32.c | 261 --------------------------------- target/arm/tcg/m_helper.c | 93 ++++++++---- target/arm/Kconfig | 4 - target/arm/meson.build | 3 + target/arm/tcg/meson.build | 3 + 6 files changed, 357 insertions(+), 297 deletions(-) create mode 100644 target/arm/tcg/cpu-v7m.c