linux/arch/riscv
Linus Torvalds cccf0c2ee5 Tracing updates for 6.5:
- Add new feature to have function graph tracer record the return value.
   Adds a new option: funcgraph-retval ; when set, will show the return
   value of a function in the function graph tracer.
 
 - Also add the option: funcgraph-retval-hex where if it is not set, and
   the return value is an error code, then it will return the decimal of
   the error code, otherwise it still reports the hex value.
 
 - Add the file /sys/kernel/tracing/osnoise/per_cpu/cpu<cpu>/timerlat_fd
   That when a application opens it, it becomes the task that the timer lat
   tracer traces. The application can also read this file to find out how
   it's being interrupted.
 
 - Add the file /sys/kernel/tracing/available_filter_functions_addrs
   that works just the same as available_filter_functions but also shows
   the addresses of the functions like kallsyms, except that it gives the
   address of where the fentry/mcount jump/nop is. This is used by BPF to
   make it easier to attach BPF programs to ftrace hooks.
 
 - Replace strlcpy with strscpy in the tracing boot code.
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Merge tag 'trace-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing updates from Steven Rostedt:

 - Add new feature to have function graph tracer record the return
   value. Adds a new option: funcgraph-retval ; when set, will show the
   return value of a function in the function graph tracer.

 - Also add the option: funcgraph-retval-hex where if it is not set, and
   the return value is an error code, then it will return the decimal of
   the error code, otherwise it still reports the hex value.

 - Add the file /sys/kernel/tracing/osnoise/per_cpu/cpu<cpu>/timerlat_fd
   That when a application opens it, it becomes the task that the timer
   lat tracer traces. The application can also read this file to find
   out how it's being interrupted.

 - Add the file /sys/kernel/tracing/available_filter_functions_addrs
   that works just the same as available_filter_functions but also shows
   the addresses of the functions like kallsyms, except that it gives
   the address of where the fentry/mcount jump/nop is. This is used by
   BPF to make it easier to attach BPF programs to ftrace hooks.

 - Replace strlcpy with strscpy in the tracing boot code.

* tag 'trace-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix warnings when building htmldocs for function graph retval
  riscv: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
  tracing/boot: Replace strlcpy with strscpy
  tracing/timerlat: Add user-space interface
  tracing/osnoise: Skip running osnoise if all instances are off
  tracing/osnoise: Switch from PF_NO_SETAFFINITY to migrate_disable
  ftrace: Show all functions with addresses in available_filter_functions_addrs
  selftests/ftrace: Add funcgraph-retval test case
  LoongArch: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
  x86/ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
  arm64: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
  tracing: Add documentation for funcgraph-retval and funcgraph-retval-hex
  function_graph: Support recording and printing the return value of function
  fgraph: Add declaration of "struct fgraph_ret_regs"
2023-06-30 10:33:17 -07:00
..
boot RISC-V Devicetrees for v6.5 Part 2 2023-06-20 23:06:54 +02:00
configs RISC-V Patches for the 6.5 Merge Window, Part 1 2023-06-30 09:37:26 -07:00
errata riscv: Fix relocatable kernels with early alternatives using -fno-pie 2023-05-31 07:07:07 -07:00
include Tracing updates for 6.5: 2023-06-30 10:33:17 -07:00
kernel Tracing updates for 6.5: 2023-06-30 10:33:17 -07:00
kvm riscv: Add prctl controls for userspace vector management 2023-06-08 07:16:53 -07:00
lib riscv: Allow to downgrade paging mode from the command line 2023-04-26 07:30:52 -07:00
mm RISC-V Patches for the 6.5 Merge Window, Part 1 2023-06-30 09:37:26 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-03-09 22:22:11 -08:00
purgatory hardening updates for v6.5-rc1 2023-06-27 21:24:18 -07:00
tools riscv: Check relocations at compile time 2023-04-19 07:46:32 -07:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig Tracing updates for 6.5: 2023-06-30 10:33:17 -07:00
Kconfig.debug
Kconfig.errata Merge patch series "RISC-V: Fixes for riscv_has_extension[un]likely()'s alternative dependency" 2023-03-29 12:26:38 -07:00
Kconfig.socs riscv: Add the T-HEAD SoC family Kconfig option 2023-06-17 19:04:08 +01:00
Makefile riscv: Enable Vector code to be built 2023-06-08 07:16:56 -07:00
Makefile.postlink riscv: Use --emit-relocs in order to move .rela.dyn in init 2023-04-19 07:46:33 -07:00