a50c433012
Complete revamp of the exception entry code, including syscall handling.
Proper syscall frame exception trigger. Many correctness fixes, hacks
removal, etc. etc.
I tried to make this into several commits, but this stuff is all
inter-related and a pain to split.
The diffstat summary:
14 files changed, 250 insertions(+), 802 deletions(-)
Binary size (before):
text data bss dec hex filename
1104 0 0 1104 450 isr.S.obj
64 0 0 64 40 userspace.S.obj
Binary size (after):
text data bss dec hex filename
600 0 0 600 258 isr.S.obj
36 0 0 36 24 userspace.S.obj
Run of samples/userspace/syscall_perf (before):
*** Booting Zephyr OS build zephyr-v3.0.0-325-g3748accae018 ***
Main Thread started; qemu_riscv32
Supervisor thread started
User thread started
Supervisor thread(0x80010048): 384 cycles 509 instructions
User thread(0x80010140): 77312 cycles 77437 instructions
Run of samples/userspace/syscall_perf (after):
*** Booting Zephyr OS build zephyr-v3.0.0-326-g4c877a2753b3 ***
Main Thread started; qemu_riscv32
Supervisor thread started
User thread started
Supervisor thread(0x80010048): 384 cycles 509 instructions
User thread(0x80010138): 7040 cycles 7165 instructions
Yes, that's more than a 10x speed-up!
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
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| .. | ||
| adp_xc7k_ae350 | ||
| beaglev_starlight_jh7100 | ||
| esp32c3_devkitm | ||
| gd32vf103c_starter | ||
| gd32vf103v_eval | ||
| hifive1 | ||
| hifive1_revb | ||
| hifive_unleashed | ||
| hifive_unmatched | ||
| it8xxx2_evb | ||
| litex_vexriscv | ||
| longan_nano | ||
| m2gl025_miv | ||
| neorv32 | ||
| qemu_riscv32 | ||
| qemu_riscv64 | ||
| rv32m1_vega | ||
| tlsr9518adk80d | ||
| index.rst | ||