Hello Ard,
On 13/03/18 18:32, Alexander Sverdlin wrote:
> u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
> {
> struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core
> :
>
On 13 March 2018 at 18:24, Alexander Sverdlin
wrote:
> Hi!
>
> On 13/03/18 18:51, Ard Biesheuvel wrote:
if (IS_ENABLED(CONFIG_ARM_MODULE_PLTS))
module_plt_alloc_fixed();
>>> Do you consider this a legal C code if without module-plts.o the function
>>> would not exist at all?
>>> Tha
Hi!
On 13/03/18 18:39, Ard Biesheuvel wrote:
>> u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr
>> val)
>> {
>> struct mod_plt_sec *pltsec = !in_init(mod, loc) ?
>> &mod->arch.core :
>>
Hi!
On 13/03/18 18:51, Ard Biesheuvel wrote:
>>> if (IS_ENABLED(CONFIG_ARM_MODULE_PLTS))
>>> module_plt_alloc_fixed();
>> Do you consider this a legal C code if without module-plts.o the function
>> would not exist at all?
>> That's too much relying on optimizer I think...
>>
> Yes, we rely o
On 13 March 2018 at 17:49, Alexander Sverdlin
wrote:
> On 13/03/18 18:39, Ard Biesheuvel wrote:
>> if (IS_ENABLED(CONFIG_ARM_MODULE_PLTS))
>> module_plt_alloc_fixed();
>
> Do you consider this a legal C code if without module-plts.o the function
> would not exist at all?
> That's too much rel
On 13/03/18 18:39, Ard Biesheuvel wrote:
> if (IS_ENABLED(CONFIG_ARM_MODULE_PLTS))
> module_plt_alloc_fixed();
Do you consider this a legal C code if without module-plts.o the function would
not exist at all?
That's too much relying on optimizer I think...
--
Best regards,
Alexander Sverdli
On 13 March 2018 at 17:32, Alexander Sverdlin
wrote:
> Hi Ard!
>
> On 13/03/18 18:18, Ard Biesheuvel wrote:
> u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
> {
> struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core
> :
>
Hi Ard!
On 13/03/18 18:18, Ard Biesheuvel wrote:
u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
{
struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core :
&mod->arch.init;
On 13 March 2018 at 17:13, Alexander Sverdlin
wrote:
> Hello Ard,
>
> On 13/03/18 17:12, Ard Biesheuvel wrote:
>>> u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
>>> {
>>> struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core :
>>>
Hello Ard,
On 13/03/18 17:12, Ard Biesheuvel wrote:
>> u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
>> {
>> struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core :
>> &mod->arch.init;
>> +
On 13 March 2018 at 13:53, Alexander Sverdlin
wrote:
> Teach ftrace_make_call() and ftrace_make_nop() about PLTs.
> Teach PLT code about FTRACE and all its callbacks.
> Otherwise the following might happen:
>
> [ cut here ]
> WARNING: CPU: 14 PID: 2265 at .../arch/arm/kerne
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