This is v3 of the patches posted here: http://lkml.kernel.org/r/cover.1718008093.git.naveen@xxxxxxxxxx Since v2, I have addressed review comments from Steven and Masahiro along with a few fixes. Patches 7-11 are new in this series and add support for ftrace direct and bpf trampolines. This series depends on the patch series from Benjamin Gray adding support for patch_ulong(): http://lkml.kernel.org/r/20240515024445.236364-1-bgray@xxxxxxxxxxxxx - Naveen Naveen N Rao (11): powerpc/kprobes: Use ftrace to determine if a probe is at function entry powerpc/ftrace: Unify 32-bit and 64-bit ftrace entry code powerpc/module_64: Convert #ifdef to IS_ENABLED() powerpc/ftrace: Remove pointer to struct module from dyn_arch_ftrace kbuild: Add generic hook for architectures to use before the final vmlinux link powerpc64/ftrace: Move ftrace sequence out of line powerpc/ftrace: Add support for DYNAMIC_FTRACE_WITH_CALL_OPS powerpc/ftrace: Add support for DYNAMIC_FTRACE_WITH_DIRECT_CALLS samples/ftrace: Add support for ftrace direct samples on powerpc powerpc64/bpf: Fold bpf_jit_emit_func_call_hlp() into bpf_jit_emit_func_call_rel() powerpc64/bpf: Add support for bpf trampolines arch/Kconfig | 3 + arch/powerpc/Kconfig | 9 + arch/powerpc/Makefile | 8 + arch/powerpc/include/asm/ftrace.h | 29 +- arch/powerpc/include/asm/module.h | 5 + arch/powerpc/include/asm/ppc-opcode.h | 14 + arch/powerpc/kernel/asm-offsets.c | 11 + arch/powerpc/kernel/kprobes.c | 18 +- arch/powerpc/kernel/module_64.c | 67 +- arch/powerpc/kernel/trace/ftrace.c | 269 +++++++- arch/powerpc/kernel/trace/ftrace_64_pg.c | 73 +- arch/powerpc/kernel/trace/ftrace_entry.S | 210 ++++-- arch/powerpc/kernel/vmlinux.lds.S | 3 +- arch/powerpc/net/bpf_jit.h | 11 + arch/powerpc/net/bpf_jit_comp.c | 702 +++++++++++++++++++- arch/powerpc/net/bpf_jit_comp32.c | 7 +- arch/powerpc/net/bpf_jit_comp64.c | 68 +- arch/powerpc/tools/Makefile | 10 + arch/powerpc/tools/gen-ftrace-pfe-stubs.sh | 49 ++ samples/ftrace/ftrace-direct-modify.c | 85 ++- samples/ftrace/ftrace-direct-multi-modify.c | 101 ++- samples/ftrace/ftrace-direct-multi.c | 79 ++- samples/ftrace/ftrace-direct-too.c | 83 ++- samples/ftrace/ftrace-direct.c | 69 +- scripts/Makefile.vmlinux | 8 + scripts/link-vmlinux.sh | 11 +- 26 files changed, 1813 insertions(+), 189 deletions(-) create mode 100644 arch/powerpc/tools/Makefile create mode 100755 arch/powerpc/tools/gen-ftrace-pfe-stubs.sh base-commit: e2b06d707dd067509cdc9ceba783c06fa6a551c2 prerequisite-patch-id: a1d50e589288239d5a8b1c1f354cd4737057c9d3 prerequisite-patch-id: da4142d56880861bd0ad7ad7087c9e2670a2ee54 prerequisite-patch-id: 609d292e054b2396b603890522a940fa0bdfb6d8 prerequisite-patch-id: 6f7213fb77b1260defbf43be0e47bff9c80054cc prerequisite-patch-id: ad3b71bf071ae4ba1bee5b087e61a2055772a74f -- 2.45.2
