8e9509c827
-tip testing found a bootup hang here:
initcall anon_inode_init+0x0/0x130 returned 0 after 0 msecs
calling acpi_event_init+0x0/0x57
the bootup should have continued with:
initcall acpi_event_init+0x0/0x57 returned 0 after 45 msecs
but it hung hard there instead.
bisection led to this commit:
| commit 5806b81ac1
| Merge: d14c8a6... 6712e29...
| Author: Ingo Molnar <mingo@elte.hu>
| Date: Mon Jul 14 16:11:52 2008 +0200
| Merge branch 'auto-ftrace-next' into tracing/for-linus
turns out that i made this mistake in the merge:
ifdef CONFIG_FTRACE
# Do not profile debug utilities
CFLAGS_REMOVE_tsc_64.o = -pg
CFLAGS_REMOVE_tsc_32.o = -pg
those two files got unified meanwhile - so the dont-profile annotation
got lost. The proper rule is:
CFLAGS_REMOVE_tsc.o = -pg
i guess this could have been caught sooner if the CFLAGS_REMOVE* kbuild
rule aborted the build if it met a target that does not exist anymore?
Signed-off-by: Ingo Molnar <mingo@elte.hu>
114 lines
3.7 KiB
Makefile
114 lines
3.7 KiB
Makefile
#
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# Makefile for the linux kernel.
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#
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extra-y := head_$(BITS).o head$(BITS).o head.o init_task.o vmlinux.lds
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CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
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ifdef CONFIG_FTRACE
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# Do not profile debug utilities
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CFLAGS_REMOVE_tsc.o = -pg
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CFLAGS_REMOVE_rtc.o = -pg
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endif
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#
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# vsyscalls (which work on the user stack) should have
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# no stack-protector checks:
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#
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nostackp := $(call cc-option, -fno-stack-protector)
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CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp)
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CFLAGS_hpet.o := $(nostackp)
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CFLAGS_tsc.o := $(nostackp)
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obj-y := process_$(BITS).o signal_$(BITS).o entry_$(BITS).o
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obj-y += traps_$(BITS).o irq_$(BITS).o
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obj-y += time_$(BITS).o ioport.o ldt.o
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obj-y += setup.o i8259.o irqinit_$(BITS).o setup_percpu.o
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obj-$(CONFIG_X86_VISWS) += visws_quirks.o
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obj-$(CONFIG_X86_32) += probe_roms_32.o
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obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
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obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
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obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o
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obj-y += bootflag.o e820.o
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obj-y += pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
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obj-y += alternative.o i8253.o pci-nommu.o
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obj-y += tsc.o io_delay.o rtc.o
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obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o
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obj-y += process.o
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obj-y += i387.o
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obj-y += ptrace.o
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obj-y += ds.o
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obj-$(CONFIG_X86_32) += tls.o
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obj-$(CONFIG_IA32_EMULATION) += tls.o
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obj-y += step.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-y += cpu/
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obj-y += acpi/
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obj-$(CONFIG_X86_BIOS_REBOOT) += reboot.o
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obj-$(CONFIG_MCA) += mca_32.o
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obj-$(CONFIG_X86_MSR) += msr.o
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obj-$(CONFIG_X86_CPUID) += cpuid.o
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obj-$(CONFIG_MICROCODE) += microcode.o
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obj-$(CONFIG_PCI) += early-quirks.o
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apm-y := apm_32.o
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obj-$(CONFIG_APM) += apm.o
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obj-$(CONFIG_X86_SMP) += smp.o
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obj-$(CONFIG_X86_SMP) += smpboot.o tsc_sync.o ipi.o tlb_$(BITS).o
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obj-$(CONFIG_X86_32_SMP) += smpcommon.o
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obj-$(CONFIG_X86_64_SMP) += tsc_sync.o smpcommon.o
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obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_$(BITS).o
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obj-$(CONFIG_X86_MPPARSE) += mpparse.o
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obj-$(CONFIG_X86_LOCAL_APIC) += apic_$(BITS).o nmi.o
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obj-$(CONFIG_X86_IO_APIC) += io_apic_$(BITS).o
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obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
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obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
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obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
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obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
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obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
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obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o
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obj-y += vsmp_64.o
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obj-$(CONFIG_KPROBES) += kprobes.o
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obj-$(CONFIG_MODULES) += module_$(BITS).o
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obj-$(CONFIG_EFI) += efi.o efi_$(BITS).o efi_stub_$(BITS).o
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obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_VM86) += vm86_32.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_HPET_TIMER) += hpet.o
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obj-$(CONFIG_K8_NB) += k8.o
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obj-$(CONFIG_MGEODE_LX) += geode_32.o mfgpt_32.o
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obj-$(CONFIG_DEBUG_RODATA_TEST) += test_rodata.o
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obj-$(CONFIG_DEBUG_NX_TEST) += test_nx.o
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obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
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obj-$(CONFIG_KVM_GUEST) += kvm.o
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obj-$(CONFIG_KVM_CLOCK) += kvmclock.o
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obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o
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obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
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obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
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obj-$(CONFIG_SCx200) += scx200.o
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scx200-y += scx200_32.o
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obj-$(CONFIG_OLPC) += olpc.o
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###
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# 64 bit specific files
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ifeq ($(CONFIG_X86_64),y)
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obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o
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obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o
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obj-$(CONFIG_AUDIT) += audit_64.o
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obj-$(CONFIG_GART_IOMMU) += pci-gart_64.o aperture_64.o
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obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary_64.o tce_64.o
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obj-$(CONFIG_AMD_IOMMU) += amd_iommu_init.o amd_iommu.o
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obj-$(CONFIG_SWIOTLB) += pci-swiotlb_64.o
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obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o
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endif
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