On 2023-03-27 11:52, yashvardhan kukreti wrote:
62 #ifdef LTTNG_CONFIG_PPC64_ELF_ABI_V2
63 /* Substract 4 bytes to get what we originally want */
64 addr = (unsigned long)(((char *)probe.addr) - 4);
65 #elif defined*(LTTNG_*CONFIG_PPC64_ELF_ABI_V1) << incorrect MACRO to
used in gerrit review. this is the correct one.
66 /*
67 * Build a function descriptor from the address of
/lttng-module-2.13.8/src/wrapper/kallsyms.c:72:32: error: invalid use of
undefined type 'struct func_desc'
| 72 | kallsyms_lookup_name_func_desc.addr = (unsigned long)probe.addr;
/lttng-module-2.13.8/src/wrapper/kallsyms.c:73:32: error: invalid use of
undefined type 'struct func_desc'
| 73 | kallsyms_lookup_name_func_desc.toc = ((struct func_desc *)
&sprint_symbol)->toc;
you either want to use func_descr_t
https://elixir.bootlin.com/linux/v5.15.104/source/arch/powerpc/include/asm/types.h#L30
<https://elixir.bootlin.com/linux/v5.15.104/source/arch/powerpc/include/asm/types.h#L30>
or
struct ppc64_opd_entry
https://elixir.bootlin.com/linux/v5.17.15/source/arch/powerpc/include/uapi/asm/elf.h#L293
<https://elixir.bootlin.com/linux/v5.17.15/source/arch/powerpc/include/uapi/asm/elf.h#L293>
both of which are discontinued from 5.18
Hi,
I updated the patch at https://review.lttng.org/c/lttng-modules/+/9113 to
support kernels older than v5.18. It's only build tested on v5.17 and v5.18.
Michael
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