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authorNicholas Piggin <npiggin@gmail.com>2017-05-12 03:40:38 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2017-05-30 14:59:51 +1000
commit4ea80652dc75482dca1739762075dd5caa57ae29 (patch)
treee436d86e6dc7773cce6af45de3a1ebff09b41282 /arch/powerpc/Makefile.postlink
parentefe0160cfd40a99c052a00e174787c1f4158a9cd (diff)
powerpc/64s: Tool to flag direct branches from unrelocated interrupt vectors
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>
Diffstat (limited to 'arch/powerpc/Makefile.postlink')
-rw-r--r--arch/powerpc/Makefile.postlink9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/powerpc/Makefile.postlink b/arch/powerpc/Makefile.postlink
index eccfcc88afae..50336930e6f7 100644
--- a/arch/powerpc/Makefile.postlink
+++ b/arch/powerpc/Makefile.postlink
@@ -11,7 +11,14 @@ __archpost:
include scripts/Kbuild.include
quiet_cmd_relocs_check = CHKREL $@
- cmd_relocs_check = $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/relocs_check.sh "$(OBJDUMP)" "$@"
+ifdef CONFIG_PPC_BOOK3S_64
+ cmd_relocs_check = \
+ $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/relocs_check.sh "$(OBJDUMP)" "$@" ; \
+ $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/unrel_branch_check.sh "$(OBJDUMP)" "$@"
+else
+ cmd_relocs_check = \
+ $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/relocs_check.sh "$(OBJDUMP)" "$@"
+endif
# `@true` prevents complaint when there is nothing to be done