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2017-05-30powerpc/64: Tool to check head sections location sanityNicholas Piggin1-0/+78
Use a tool to check that the location of "fixed sections" are where we expected them to be, which catches cases the linker script can't (stubs being added to start of .text section), and which ends up being neater. Sample output: ERROR: start_text address is c000000000008100, should be c000000000008000 ERROR: see comments in arch/powerpc/tools/head_check.sh Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Fold in fix from Nick for 4.6 era toolchains] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-05-30powerpc/64s: Tool to flag direct branches from unrelocated interrupt vectorsNicholas Piggin1-0/+57
Direct banches from code below __end_interrupts to code above __end_interrupts when built with CONFIG_RELOCATABLE are disallowed because they will break when the kernel is not located at 0. Sample output: WARNING: Unrelocated relative branches c000000000000118 bl-> 0xc000000000038fb8 <pnv_restore_hyp_resource> c00000000000013c b-> 0xc0000000001068a4 <kvm_start_guest> c000000000000148 b-> 0xc00000000003919c <pnv_wakeup_loss> c00000000000014c b-> 0xc00000000003923c <pnv_wakeup_noloss> c0000000000005a4 b-> 0xc000000000106ffc <kvmppc_interrupt_hv> c000000000001af0 b-> 0xc000000000106ffc <kvmppc_interrupt_hv> c000000000001b24 b-> 0xc000000000106ffc <kvmppc_interrupt_hv> c000000000001b58 b-> 0xc000000000106ffc <kvmppc_interrupt_hv> Signed-off-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-28powerpc: Add arch/powerpc/tools directoryNicholas Piggin2-0/+84
Move a couple of existing scripts under there. Remove scripts directory: a script is a tool, a tool is not a script. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>