We disabled the unicore32-linux-user in commit 5e2b40f7271cf9d in 2016, due to a problem with the syscall ABI it implemented being out of date and out of sync with the mainline kernel. In the intervening year and a half there have been no proposals to fix these problems so that we could re-enable it. This patchset removes the 750 lines of dead code from linux-user. (I suggested this in https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06634.html and there were no objections.)
The second patch is a cleanup we can make as a result, since with unicore32 gone all our targets implement signal handling: we can remove the default "not implemented" stub functions. You could argue that these might be helpful for future new targets, but IMHO signal handling support is too important to allow a hypothetical new target to silently get away without implementing it. For initial development it's easy enough to stub out the per-architecture functions, and then we will have a clear view of which targets (if any) don't have the signal handling implemented yet, and the missing feature will show up in code review. thanks -- PMM Peter Maydell (2): linux-user: Drop unicore32 code linux-user: Remove the unused "not implemented" signal handling stubs linux-user/qemu.h | 5 +- linux-user/syscall_defs.h | 6 +- linux-user/unicore32/syscall_nr.h | 371 ---------------------------------- linux-user/unicore32/target_cpu.h | 27 --- linux-user/unicore32/target_elf.h | 14 -- linux-user/unicore32/target_signal.h | 30 --- linux-user/unicore32/target_structs.h | 58 ------ linux-user/unicore32/target_syscall.h | 62 ------ linux-user/unicore32/termbits.h | 2 - linux-user/elfload.c | 72 ------- linux-user/main.c | 99 +-------- linux-user/signal.c | 32 +-- 12 files changed, 7 insertions(+), 771 deletions(-) delete mode 100644 linux-user/unicore32/syscall_nr.h delete mode 100644 linux-user/unicore32/target_cpu.h delete mode 100644 linux-user/unicore32/target_elf.h delete mode 100644 linux-user/unicore32/target_signal.h delete mode 100644 linux-user/unicore32/target_structs.h delete mode 100644 linux-user/unicore32/target_syscall.h delete mode 100644 linux-user/unicore32/termbits.h -- 2.16.2
