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Fangrui Song aff69273af vdso: Improve cmd_vdso_check to check all dynamic relocations 
The actual intention is that no dynamic relocation exists in the VDSO. For
this the VDSO build validates that the resulting .so file does not have any
relocations which are specified via $(ARCH_REL_TYPE_ABS) per architecture,
which is fragile as e.g. ARM64 lacks an entry for R_AARCH64_RELATIVE. Aside
of that ARCH_REL_TYPE_ABS is a misnomer as it checks for relative
relocations too.

However, some GNU ld ports produce unneeded R_*_NONE relocation entries. If
a port fails to determine the exact .rel[a].dyn size, the trailing zeros
become R_*_NONE relocations. E.g. ld's powerpc port recently fixed
https://sourceware.org/bugzilla/show_bug.cgi?id=29540). R_*_NONE are
generally a no-op in the dynamic loaders. So just ignore them.

Remove the ARCH_REL_TYPE_ABS defines and just validate that the resulting
.so file does not contain any R_* relocation entries except R_*_NONE.

Signed-off-by: Fangrui Song <maskray@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> # for aarch64
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> # for vDSO, aarch64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Link: https://lore.kernel.org/r/20230310190750.3323802-1-maskray@google.com
 		2023-03-21 21:15:34 +01:00
..
pi arm64: unwind: add asynchronous unwind tables to kernel and modules 2022-11-09 18:06:35 +00:00
probes arm64: kprobes: Drop ID map text from kprobes blacklist 2023-02-07 18:25:10 +00:00
vdso vdso: Improve cmd_vdso_check to check all dynamic relocations 2023-03-21 21:15:34 +01:00
vdso32 vdso: Improve cmd_vdso_check to check all dynamic relocations 2023-03-21 21:15:34 +01:00
.gitignore
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Makefile EFI updates for v6.2: 2022-12-13 14:31:47 -08:00
acpi.c arm64: acpi: Fix possible memory leak of ffh_ctxt 2023-02-24 14:21:49 +00:00
acpi_numa.c arm64: numa: Don't check node against MAX_NUMNODES 2022-07-19 19:10:28 +01:00
acpi_parking_protocol.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
alternative.c arm64: alternatives: add __init/__initconst to some functions/variables 2022-12-05 13:47:06 +00:00
armv8_deprecated.c arm64: armv8_deprecated: fix unused-function error 2022-11-25 12:16:22 +00:00
asm-offsets.c arm64: Implement HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS 2023-01-24 11:49:43 +00:00
cacheinfo.c ARM: 2023-02-25 11:30:21 -08:00
compat_alignment.c arm64: compat: Implement misalignment fixups for multiword loads 2022-09-06 09:34:53 +01:00
cpu-reset.S arm64: Add types to indirect called assembly functions 2022-09-26 10:13:13 -07:00
cpu_errata.c arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption 2023-01-06 17:14:55 +00:00
cpu_ops.c
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cpufeature.c arm64 fixes: 2023-03-02 14:57:53 -08:00
cpuidle.c cpuidle, arm64: Fix the ARM64 cpuidle logic 2023-01-18 12:27:17 +01:00
cpuinfo.c Merge branches 'for-next/sysreg', 'for-next/sme', 'for-next/kselftest', 'for-next/misc', 'for-next/sme2', 'for-next/tpidr2', 'for-next/scs', 'for-next/compat-hwcap', 'for-next/ftrace', 'for-next/efi-boot-mmu-on', 'for-next/ptrauth' and 'for-next/pseudo-nmi', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2023-02-10 18:51:49 +00:00
crash_core.c
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crash_dump.c
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debug-monitors.c arm64/sysreg: Add _EL1 into ID_AA64DFR0_EL1 definition names 2022-09-16 12:38:57 +01:00
efi-header.S
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efi-rt-wrapper.S arm64: efi: Avoid workqueue to check whether EFI runtime is live 2023-01-16 15:27:31 +01:00
efi.c A healthy mix of EFI contributions this time: 2023-02-23 14:41:48 -08:00
elfcore.c arm64: mte: Avoid the racy walk of the vma list during core dump 2023-01-05 15:12:12 +00:00
entry-common.c Merge branch 'for-next/undef-traps' into for-next/core 2022-12-06 11:34:25 +00:00
entry-fpsimd.S arm64/sme: Implement context switching for ZT0 2023-01-20 12:23:06 +00:00
entry-ftrace.S arm64: Implement HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS 2023-01-24 11:49:43 +00:00
entry.S Merge branches 'for-next/sysreg', 'for-next/sme', 'for-next/kselftest', 'for-next/misc', 'for-next/sme2', 'for-next/tpidr2', 'for-next/scs', 'for-next/compat-hwcap', 'for-next/ftrace', 'for-next/efi-boot-mmu-on', 'for-next/ptrauth' and 'for-next/pseudo-nmi', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2023-02-10 18:51:49 +00:00
fpsimd.c arm64 fixes: 2023-03-02 14:57:53 -08:00
ftrace.c arm64: Implement HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS 2023-01-24 11:49:43 +00:00
head.S arm64: fix .idmap.text assertion for large kernels 2023-02-20 18:23:35 +00:00
hibernate-asm.S
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hibernate.c arm64: mte: Fix/clarify the PG_mte_tagged semantics 2022-11-29 09:26:07 +00:00
hw_breakpoint.c
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hyp-stub.S arm64/sme: Fix __finalise_el2 SMEver check 2023-02-06 16:34:29 +00:00
idle.c arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled 2023-01-13 11:48:15 +01:00
idreg-override.c arm64/sme: Enable host kernel to access ZT0 2023-01-20 12:23:06 +00:00
image-vars.h Merge branches 'for-next/sysreg', 'for-next/sme', 'for-next/kselftest', 'for-next/misc', 'for-next/sme2', 'for-next/tpidr2', 'for-next/scs', 'for-next/compat-hwcap', 'for-next/ftrace', 'for-next/efi-boot-mmu-on', 'for-next/ptrauth' and 'for-next/pseudo-nmi', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2023-02-10 18:51:49 +00:00
image.h
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io.c
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irq.c Merge branch 'for-next/stacks' into for-next/core 2022-12-06 11:26:40 +00:00
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kaslr.c arm64: kaslr: don't pretend KASLR is enabled if offset < MIN_KIMG_ALIGN 2023-02-28 11:21:04 +00:00
kexec_image.c arm64: kexec_file: use more system keyrings to verify kernel image signature 2022-07-15 12:21:16 -04:00
kgdb.c
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kuser32.S arm64: compat: Move kuser32.S to .rodata section 2022-06-23 16:01:42 +01:00
machine_kexec.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
machine_kexec_file.c arm64/kexec: Fix missing extra range for crashkres_low. 2022-09-01 11:50:00 +01:00
module-plts.c arm64: module: Make plt_equals_entry() static 2022-09-29 17:47:18 +01:00
module.c Merge branch 'for-next/ftrace' into for-next/core 2022-12-06 11:07:39 +00:00
mte.c arm64: mte: Lock a page for MTE tag initialisation 2022-11-29 09:26:07 +00:00
paravirt.c arm64: paravirt: remove conduit check in has_pv_steal_clock 2022-11-09 18:11:56 +00:00
patch-scs.c arm64: Apply dynamic shadow call stack patching in two passes 2023-01-26 17:54:15 +00:00
patching.c arm64: patching: Add aarch64_insn_write_literal_u64() 2023-01-24 11:49:43 +00:00
pci.c
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perf_callchain.c
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perf_event.c arm64: perf: reject CHAIN events at creation time 2023-02-16 21:23:52 +00:00
perf_regs.c perf: arm64: Add SVE vector granule register to user regs 2022-09-22 15:06:02 +01:00
pointer_auth.c
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process.c arm64/sme: Provide storage for ZT0 2023-01-20 12:23:06 +00:00
proton-pack.c arm64: factor out EL1 SSBS emulation hook 2022-11-15 13:46:18 +00:00
psci.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
ptrace.c arm64 updates for 6.3: 2023-02-21 15:27:48 -08:00
reloc_test_core.c ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs 2022-09-29 18:04:25 +01:00
reloc_test_syms.S
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relocate_kernel.S
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return_address.c
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sdei.c arm64: implement dynamic shadow call stack for Clang 2022-11-09 18:06:35 +00:00
setup.c arm64: head: record the MMU state at primary entry 2023-01-24 11:51:07 +00:00
signal.c arm64 updates for 6.3: 2023-02-21 15:27:48 -08:00
signal32.c
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sigreturn32.S arm64: compat: Move sigreturn32.S to .rodata section 2022-07-01 12:05:45 +01:00
sleep.S arm64: head: Clean the ID map and the HYP text to the PoC if needed 2023-01-24 11:51:08 +00:00
smccc-call.S
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smp.c arm64, smp: Remove trace_.*_rcuidle() usage 2023-01-13 11:48:15 +01:00
smp_spin_table.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
stacktrace.c arm64: efi: Account for the EFI runtime stack in stack unwinder 2023-01-16 15:27:31 +01:00
suspend.c cpuidle, arm64: Fix the ARM64 cpuidle logic 2023-01-18 12:27:17 +01:00
sys.c
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sys32.c
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sys_compat.c
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syscall.c arm64/sme: Optimise SME exit on syscall entry 2023-01-12 17:09:21 +00:00
time.c
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topology.c RISC-V Patches for the 6.1 Merge Window, Part 1 2022-10-09 13:24:01 -07:00
trace-events-emulation.h
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traps.c arm64 fixes: 2023-03-02 14:57:53 -08:00
vdso-wrap.S
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vdso.c mm: remove zap_page_range and create zap_vma_pages 2023-01-18 17:12:55 -08:00
vdso32-wrap.S
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vmlinux.lds.S arm64 updates for 6.3: 2023-02-21 15:27:48 -08:00