Commit f9afbd45b0d0 broke mips r4k.

DISCUSSION Rob Landley 2 participants 3 messages Jun 13, 2013 – Jun 16, 2013

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Rob Landley

author

2013-06-13 02:35 UTC #0 lore raw

My aboriginal linux project builds tiny linux systems to run under qemu, producing as close to the same system as possible across a bunch of different architectures. The above change broke the mips r4k build I've been running under qemu.

Here's a toolchain and reproduction sequence:

wget http://landley.net/aboriginal/bin/cross-compiler-mips.tar.bz2
tar xvjf cross-compiler-mips.tar.bz2
export PATH=$PWD/cross-compiler-mips/bin:$PATH
make ARCH=mips allnoconfig KCONFIG_ALLCONFIG=miniconfig.mips make CROSS_COMPILE=mips- ARCH=mips

(The file miniconfig.mips is attached.)

It ends:

CC init/version.o
LD init/built-in.o
arch/mips/built-in.o: In function `local_r4k_flush_cache_page':
c-r4k.c:(.text+0xe278): undefined reference to kvm_local_flush_tlb_all' c-r4k.c:(.text+0xe278): relocation truncated to fit: R_MIPS_26 against kvm_local_flush_tlb_all' arch/mips/built-in.o: In function `local_flush_tlb_range':
(.text+0xe938): undefined reference to kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_range':
(.text+0xe938): relocation truncated to fit: R_MIPS_26 against kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_mm':
(.text+0xed38): undefined reference to kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_mm':
(.text+0xed38): relocation truncated to fit: R_MIPS_26 against kvm_local_flush_tlb_all' kernel/built-in.o: In function __schedule':
core.c:(.sched.text+0x16a0): undefined reference to kvm_local_flush_tlb_all' core.c:(.sched.text+0x16a0): relocation truncated to fit: R_MIPS_26 against kvm_local_flush_tlb_all' mm/built-in.o: In function `use_mm':
(.text+0x182c8): undefined reference to `kvm_local_flush_tlb_all'
mm/built-in.o: In function `use_mm':
(.text+0x182c8): relocation truncated to fit: R_MIPS_26 against kvm_local_flush_tlb_all' fs/built-in.o:(.text+0x7b50): more undefined references to kvm_local_flush_tlb_all' follow fs/built-in.o: In function `flush_old_exec':
(.text+0x7b50): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'

Revert the above commit and it builds to the end.

Rob

CONFIG_EXPERIMENTAL=y
CONFIG_NO_HZ=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_PCI=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_MAGIC_SYSRQ=y

CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_LOOP=y

CONFIG_IDE=y
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
CONFIG_BLK_DEV_IDECD=y

CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_SCSI_LOWLEVEL=y

CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y

CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_8139CP=y

CONFIG_HW_RANDOM=y

CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_DEV=y

CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_TMPFS=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_ZLIB=y
CONFIG_DEVTMPFS=y

CONFIG_VIRTUALIZATION=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_NET=y
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_9P_FS=y
CONFIG_9P_FS_POSIX_ACL=y

# More random (inexplicable) guard symbols added in 3.2. TODO: write

# miniconfig expander that automatically sets guard symbols when setting a
# dependent symbol.

CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_NET_VENDOR_REALTEK=y
CONFIG_NET_VENDOR_AMD=y
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NET_VENDOR_8390=y

CONFIG_MIPS_MALTA=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
#CONFIG_PM=y
CONFIG_PCNET32=y
CONFIG_BLK_DEV_PIIX=y

Ralf Baechle

2013-06-13 09:00 UTC #1 lore raw

Quoted 49 lines · Rob Landley

My aboriginal linux project builds tiny linux systems to run under qemu, producing as close to the same system as possible across a bunch of different architectures. The above change broke the mips r4k build I've been running under qemu.
Here's a toolchain and reproduction sequence:
wget http://landley.net/aboriginal/bin/cross-compiler-mips.tar.bz2
tar xvjf cross-compiler-mips.tar.bz2
export PATH=$PWD/cross-compiler-mips/bin:$PATH
make ARCH=mips allnoconfig KCONFIG_ALLCONFIG=miniconfig.mips make CROSS_COMPILE=mips- ARCH=mips
(The file miniconfig.mips is attached.)
It ends:
CC init/version.o
LD init/built-in.o
arch/mips/built-in.o: In function `local_r4k_flush_cache_page':
c-r4k.c:(.text+0xe278): undefined reference to kvm_local_flush_tlb_all' c-r4k.c:(.text+0xe278): relocation truncated to fit: R_MIPS_26 against kvm_local_flush_tlb_all'
arch/mips/built-in.o: In function `local_flush_tlb_range':
(.text+0xe938): undefined reference to kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_range':
(.text+0xe938): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
arch/mips/built-in.o: In function `local_flush_tlb_mm':
(.text+0xed38): undefined reference to kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_mm':
(.text+0xed38): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
kernel/built-in.o: In function `__schedule':
core.c:(.sched.text+0x16a0): undefined reference to `kvm_local_flush_tlb_all'
core.c:(.sched.text+0x16a0): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
mm/built-in.o: In function `use_mm':
(.text+0x182c8): undefined reference to kvm_local_flush_tlb_all' mm/built-in.o: In function use_mm':
(.text+0x182c8): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
fs/built-in.o:(.text+0x7b50): more undefined references to `kvm_local_flush_tlb_all' follow
fs/built-in.o: In function `flush_old_exec':
(.text+0x7b50): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'

Quoted 1 line

Revert the above commit and it builds to the end.

Commit d414976d1ca721456f7b7c603a8699d117c2ec07 [MIPS: include:
mmu_context.h: Replace VIRTUALIZATION with KVM] fixes the issue and was pulled by Linus only yesterday. I cannot reproduce the error following your receipe using the latest Linux/MIPS tree.

Ralf

Rob Landley

author

2013-06-16 06:51 UTC #2 lore raw

Quoted 52 lines · Ralf Baechle

Quoted 13 lines · Rob Landley
My aboriginal linux project builds tiny linux systems to run under qemu, producing as close to the same system as possible across a bunch of different architectures. The above change broke the mips r4k build I've been running under qemu.
Here's a toolchain and reproduction sequence:
wget http://landley.net/aboriginal/bin/cross-compiler-mips.tar.bz2
tar xvjf cross-compiler-mips.tar.bz2
export PATH=$PWD/cross-compiler-mips/bin:$PATH
make ARCH=mips allnoconfig KCONFIG_ALLCONFIG=miniconfig.mips make CROSS_COMPILE=mips- ARCH=mips
Quoted 8 lines
(The file miniconfig.mips is attached.)
It ends:
CC init/version.o
LD init/built-in.o
arch/mips/built-in.o: In function `local_r4k_flush_cache_page':
c-r4k.c:(.text+0xe278): undefined reference to
`kvm_local_flush_tlb_all'
Quoted 28 lines
c-r4k.c:(.text+0xe278): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
arch/mips/built-in.o: In function `local_flush_tlb_range':
(.text+0xe938): undefined reference to kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_range':
(.text+0xe938): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
arch/mips/built-in.o: In function `local_flush_tlb_mm':
(.text+0xed38): undefined reference to kvm_local_flush_tlb_all' arch/mips/built-in.o: In function local_flush_tlb_mm':
(.text+0xed38): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
kernel/built-in.o: In function `__schedule':
core.c:(.sched.text+0x16a0): undefined reference to `kvm_local_flush_tlb_all'
core.c:(.sched.text+0x16a0): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
mm/built-in.o: In function `use_mm':
(.text+0x182c8): undefined reference to kvm_local_flush_tlb_all' mm/built-in.o: In function use_mm':
(.text+0x182c8): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'
fs/built-in.o:(.text+0x7b50): more undefined references to `kvm_local_flush_tlb_all' follow
fs/built-in.o: In function `flush_old_exec':
(.text+0x7b50): relocation truncated to fit: R_MIPS_26 against `kvm_local_flush_tlb_all'

Quoted 6 lines

Quoted 1 line
Revert the above commit and it builds to the end.
Commit d414976d1ca721456f7b7c603a8699d117c2ec07 [MIPS: include:
mmu_context.h: Replace VIRTUALIZATION with KVM] fixes the issue and was pulled by Linus only yesterday. I cannot reproduce the error following your receipe using the latest Linux/MIPS tree.

Confirmed, that fixed it.

Thanks,

Rob