[Bug 2114822] Re: sysdig-dkms FTBFS in Jammy on arm64

[Sebastien Bacher]

Thank you for your work, the fix seems reasonable but I've some question

- why is it marked as "Invalid" for the current Ubuntu serie. The SRU
guideline require to resolve the issue in the newer series first. What's
the status also of Noble?

-

> [ Regression potential ]
> We may experience regressions in systems that are using sysdig in Jammy.

isn't really specific / helping to know what to try. What is "sysdig"
doing? Could you come with an user visible issue that could be observed
if that package isn't working as expected?

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Title:
  sysdig-dkms FTBFS in Jammy on arm64

Status in sysdig package in Ubuntu:
  Invalid
Status in sysdig source package in Jammy:
  In Progress

Bug description:
  [ Impact ]

  sysdig-dkms FTBFS in Jammy on arm64 as follows:

  make: Entering directory '/usr/src/linux-headers-5.15.0-141-generic'
    4   CC [M]  /var/lib/dkms/sysdig/0.27.1/build/main.o
    5   CC [M]  /var/lib/dkms/sysdig/0.27.1/build/dynamic_params_table.o
    6   CC [M]  /var/lib/dkms/sysdig/0.27.1/build/fillers_table.o
    7   CC [M]  /var/lib/dkms/sysdig/0.27.1/build/flags_table.o
    8   CC [M]  /var/lib/dkms/sysdig/0.27.1/build/ppm_events.o
    9 /var/lib/dkms/sysdig/0.27.1/build/main.c: In function ‘drop_event’:
   10 /var/lib/dkms/sysdig/0.27.1/build/main.c:1535:17: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
   11  1535 |                 nanoseconds rem;
   12       |                 ^~~~~~~~~~~
   13 /var/lib/dkms/sysdig/0.27.1/build/main.c: In function ‘syscall_enter_probe’:
   14 /var/lib/dkms/sysdig/0.27.1/build/main.c:1946:28: error: ‘SYSCALL_TABLE_ID0’ undeclared (first use in this function); did you mean ‘SYSCALL_TABLE_SIZE’?
   15  1946 |         table_index = id - SYSCALL_TABLE_ID0;
   16       |                            ^~~~~~~~~~~~~~~~~
   17       |                            SYSCALL_TABLE_SIZE
   18 /var/lib/dkms/sysdig/0.27.1/build/main.c:1946:28: note: each undeclared identifier is reported only once for each function it appears in
   19 /var/lib/dkms/sysdig/0.27.1/build/main.c: In function ‘syscall_exit_probe’:
   20 /var/lib/dkms/sysdig/0.27.1/build/main.c:2023:28: error: ‘SYSCALL_TABLE_ID0’ undeclared (first use in this function); did you mean ‘SYSCALL_TABLE_SIZE’?
   21  2023 |         table_index = id - SYSCALL_TABLE_ID0;
   22       |                            ^~~~~~~~~~~~~~~~~
   23       |                            SYSCALL_TABLE_SIZE
   24 make[1]: *** [scripts/Makefile.build:297: /var/lib/dkms/sysdig/0.27.1/build/main.o] Error 1
   25 make[1]: *** Waiting for unfinished jobs....
   26 make: *** [Makefile:1915: /var/lib/dkms/sysdig/0.27.1/build] Error 2

  [ Fix ]

  Enable arm64 backporting the following patch from upstream:
  - https://github.com/falcosecurity/libs/commit/c4f096099bf81966803d26c40c6c2cb2b8d08033

  [ Test Plan ]

  Install and load sysdig driver on both Jammy generic and Jammy hwe on
  arm64:

  $ sudo apt install sysdig-dkms
  $ dkms status
  $ sudo modprobe sysdig-probe 
  $ lsmod | grep sysdig

  [ Regression potential ]

  We may experience regressions in systems that are using sysdig in
  Jammy.

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