内核配置选项之CONFIG_AEABI
2011-11-16 12:24
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The Linux kernel configuration item
prompt: Use the ARM EABI to compile the kernel
type: tristate
depends on:
defined in arch/arm/Kconfig
found in Linux Kernels: from 2.6.16 release still available on 2.6.33 release
config AEABI
bool "Use the ARM EABI to compile the kernel"
help
This option allows for the kernel to be compiled using the latest
ARM ABI (aka EABI). This is only useful if you are using a user
space environment that is also compiled with EABI.
Since there are major incompatibilities between the legacy ABI and
EABI, especially with regard to structure member alignment, this
option also changes the kernel syscall calling convention to
disambiguate both ABIs and allow for backward compatibility support
(selected with CONFIG_OABI_COMPAT).
To use this you need GCC version 4.0.0 or later.
当内核ABI配置与用户空间不一致时,在内核加载后运行init时将会产生kernel panic错误,错误格式如下:
Kernel panic - not syncing: Attempted to kill init!
Backtrace:
[<c00259c0>] (dump_backtrace+0x0/0x114) from [<c026d674>] (dump_stack+0x18/0x1c)
r7:c5818000 r6:c5817a40 r5:c5817a40 r4:c03291c4
[<c026d65c>] (dump_stack+0x0/0x1c) from [<c026d6c4>] (panic+0x4c/0x120)
[<c026d678>] (panic+0x0/0x120) from [<c00406e0>] (do_exit+0x70/0x58c)
r3:c0313004 r2:c5817a40 r1:c5819d0c r0:c02cbdcb
[<c0040670>] (do_exit+0x0/0x58c) from [<c0040c90>] (do_group_exit+0x94/0xc8)
[<c0040bfc>] (do_group_exit+0x0/0xc8) from [<c004ae40>] (get_signal_to_deliver+0x2ec/0x324)
r7:c5293a74 r6:c5818000 r5:c5819ed4 r4:00000004
[<c004ab54>] (get_signal_to_deliver+0x0/0x324) from [<c0024024>] (do_signal+0x58/0x528)
[<c0023fcc>] (do_signal+0x0/0x528) from [<c0024524>] (do_notify_resume+0x30/0x34)
[<c00244f4>] (do_notify_resume+0x0/0x34) from [<c0021e8c>] (work_pending+0x1c/0x20)
CONFIG_AEABI:
prompt: Use the ARM EABI to compile the kernel
type: tristate
depends on:
(none)
defined in arch/arm/Kconfig
found in Linux Kernels: from 2.6.16 release still available on 2.6.33 release
config AEABI
bool "Use the ARM EABI to compile the kernel"
help
This option allows for the kernel to be compiled using the latest
ARM ABI (aka EABI). This is only useful if you are using a user
space environment that is also compiled with EABI.
Since there are major incompatibilities between the legacy ABI and
EABI, especially with regard to structure member alignment, this
option also changes the kernel syscall calling convention to
disambiguate both ABIs and allow for backward compatibility support
(selected with CONFIG_OABI_COMPAT).
To use this you need GCC version 4.0.0 or later.
当内核ABI配置与用户空间不一致时,在内核加载后运行init时将会产生kernel panic错误,错误格式如下:
Kernel panic - not syncing: Attempted to kill init!
Backtrace:
[<c00259c0>] (dump_backtrace+0x0/0x114) from [<c026d674>] (dump_stack+0x18/0x1c)
r7:c5818000 r6:c5817a40 r5:c5817a40 r4:c03291c4
[<c026d65c>] (dump_stack+0x0/0x1c) from [<c026d6c4>] (panic+0x4c/0x120)
[<c026d678>] (panic+0x0/0x120) from [<c00406e0>] (do_exit+0x70/0x58c)
r3:c0313004 r2:c5817a40 r1:c5819d0c r0:c02cbdcb
[<c0040670>] (do_exit+0x0/0x58c) from [<c0040c90>] (do_group_exit+0x94/0xc8)
[<c0040bfc>] (do_group_exit+0x0/0xc8) from [<c004ae40>] (get_signal_to_deliver+0x2ec/0x324)
r7:c5293a74 r6:c5818000 r5:c5819ed4 r4:00000004
[<c004ab54>] (get_signal_to_deliver+0x0/0x324) from [<c0024024>] (do_signal+0x58/0x528)
[<c0023fcc>] (do_signal+0x0/0x528) from [<c0024524>] (do_notify_resume+0x30/0x34)
[<c00244f4>] (do_notify_resume+0x0/0x34) from [<c0021e8c>] (work_pending+0x1c/0x20)
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