On 03/26/2015 06:05 PM, Russell King - ARM Linux wrote:
> On Fri, Mar 20, 2015 at 02:12:52PM +0300, Andrey Ryabinin wrote:
>> Usually ELF_ET_DYN_BASE is 2/3 of TASK_SIZE. With 3G/1G user/kernel
>> split this is not so, because 2*TASK_SIZE overflows 32 bits,
>> so the actual value of ELF_ET_DYN_BASE
On Fri, Mar 20, 2015 at 02:12:52PM +0300, Andrey Ryabinin wrote:
> Usually ELF_ET_DYN_BASE is 2/3 of TASK_SIZE. With 3G/1G user/kernel
> split this is not so, because 2*TASK_SIZE overflows 32 bits,
> so the actual value of ELF_ET_DYN_BASE is:
> (2 * TASK_SIZE / 3) = 0x2a00
>
> When ASLR
On Fri, Mar 20, 2015 at 4:12 AM, Andrey Ryabinin wrote:
> Usually ELF_ET_DYN_BASE is 2/3 of TASK_SIZE. With 3G/1G user/kernel
> split this is not so, because 2*TASK_SIZE overflows 32 bits,
> so the actual value of ELF_ET_DYN_BASE is:
> (2 * TASK_SIZE / 3) = 0x2a00
>
> When ASLR is disa
On 03/20/2015 02:31 PM, Yury Gribov wrote:
> On 03/20/2015 02:12 PM, Andrey Ryabinin wrote:
>> Usually ELF_ET_DYN_BASE is 2/3 of TASK_SIZE. With 3G/1G user/kernel
>> split this is not so, because 2*TASK_SIZE overflows 32 bits,
>> so the actual value of ELF_ET_DYN_BASE is:
>> (2 * TASK_SIZE / 3)
On 03/20/2015 02:12 PM, Andrey Ryabinin wrote:
Usually ELF_ET_DYN_BASE is 2/3 of TASK_SIZE. With 3G/1G user/kernel
split this is not so, because 2*TASK_SIZE overflows 32 bits,
so the actual value of ELF_ET_DYN_BASE is:
(2 * TASK_SIZE / 3) = 0x2a00
AFAIK on most platforms (e.g. Intel
Usually ELF_ET_DYN_BASE is 2/3 of TASK_SIZE. With 3G/1G user/kernel
split this is not so, because 2*TASK_SIZE overflows 32 bits,
so the actual value of ELF_ET_DYN_BASE is:
(2 * TASK_SIZE / 3) = 0x2a00
When ASLR is disabled PIE binaries will load at ELF_ET_DYN_BASE address.
On 32bit pla
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