On Mon, Feb 28, 2022 at 11:04:47AM +0530, Maninder Singh wrote:
> with commit '82b37e632513 ("kallsyms: print module name in %ps/S
> case when KALLSYMS is disabled"), module name printing was enhanced.
>
> As per suggestion from Petr Mladek <pmladek@xxxxxxxx>, covering
> other flavours also to print build id also.
>
> for %pB no change as it needs to know symbol name to adjust address
> value which can't be done without KALLSYMS.
>
> original output with KALLSYMS:
> [8.842129] ps function_1 [crash]
> [8.842735] pS function_1+0x4/0x2c [crash]
> [8.842890] pSb function_1+0x4/0x2c [crash b367e79021b9f3b0172f9a36d4261c1f528ca1b3]
> [8.843175] pB function_1+0x4/0x2c [crash]
> [8.843362] pBb function_1+0x4/0x2c [crash b367e79021b9f3b0172f9a36d4261c1f528ca1b3]
>
> original output without KALLSYMS:
> [12.487424] ps 0xffff800000eb008c
> [12.487598] pS 0xffff800000eb008c
> [12.487723] pSb 0xffff800000eb008c
> [12.487850] pB 0xffff800000eb008c
> [12.487967] pBb 0xffff800000eb008c
>
> With patched kernel without KALLSYMS:
> [9.205207] ps 0xffff800000eb008c [crash]
> [9.205564] pS 0xffff800000eb0000+0x8c [crash]
> [9.205757] pSb 0xffff800000eb0000+0x8c [crash b367e79021b9f3b0172f9a36d4261c1f528ca1b3]
> [9.206066] pB 0xffff800000eb0000+0x8c [crash]
> [9.206257] pBb 0xffff800000eb0000+0x8c [crash b367e79021b9f3b0172f9a36d4261c1f528ca1b3]
>
> Suggested-by: Petr Mladek <pmladek@xxxxxxxx>
> Co-developed-by: Vaneet Narang <v.narang@xxxxxxxxxxx>
> Signed-off-by: Vaneet Narang <v.narang@xxxxxxxxxxx>
> Signed-off-by: Maninder Singh <maninder1.s@xxxxxxxxxxx>
> ---
> earlier discussion: https://lkml.org/lkml/2022/2/10/185
>
> include/linux/kallsyms.h | 27 --------------
> kernel/module.c | 4 +--
See Aaron's work which you'll need to base your work on:
https://lkml.kernel.org/r/20220222141303.1392190-1-atomlin@xxxxxxxxxx
Soon Aaron will post a v9.
Luis
