[lttng-dev] lttng-modules build issues

[Jonathan Rajotte Julien]

Hi Dragos,

Which kernel version ?

Thanks

On 2016-02-18 05:09 AM, Dragos Tarcatu wrote:
> Hello,
>
> I'm encountering these compilation errors while trying to build the 
> lttng-modules on an nvidia tegra arm64 board:
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:358:3: error: implicit
>     declaration of function
>     '__event_probe__compat_syscall_entry_unknown'
>     [-Werror=implicit-function-declaration]
>     |  __event_probe__compat_syscall_entry_unknown(event, id, args);
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:360:3: error: implicit
>     declaration of function '__event_probe__syscall_entry_unknown'
>     [-Werror=implicit-function-declaration]
>     |  __event_probe__syscall_entry_unknown(event, id, args);
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:509:3: error: implicit
>     declaration of function
>     '__event_probe__compat_syscall_exit_unknown'
>     [-Werror=implicit-function-declaration]
>     |  __event_probe__compat_syscall_exit_unknown(event, id, ret,
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:512:3: error: implicit
>     declaration of function '__event_probe__syscall_exit_unknown'
>     [-Werror=implicit-function-declaration]
>     |    __event_probe__syscall_exit_unknown(event, id, ret, args);
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:740:2: error: implicit
>     declaration of function 'wrapper_vmalloc_sync_all'
>     [-Werror=implicit-function-declaration]
>     |   wrapper_vmalloc_sync_all();
>
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:777:5: error:
>     '__event_desc___syscall_entry_unknown' undeclared (first use in
>     this function)
>     | &__event_desc___syscall_entry_unknown;
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:794:5: error:
>     '__event_desc___compat_syscall_entry_unknown' undeclared (first
>     use in this function)
>     | &__event_desc___compat_syscall_entry_unknown;
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:811:5: error:
>     '__event_desc___compat_syscall_exit_unknown' undeclared (first use
>     in this function)
>     | &__event_desc___compat_syscall_exit_unknown;
>
>     lttng-modules/2.7.1-r1/git/lttng-syscalls.c:828:5: error:
>     '__event_desc___syscall_exit_unknown' undeclared (first use in
>     this function)
>     |     &__event_desc___syscall_exit_unknown;
>
> If I disable the syscall tracing it builds just fine though. Any idea 
> on why this may be happening?
>
> Regards,
>    Dragos
>
>
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-- 
Jonathan R. Julien
Efficios