FAQ: [#6088] Build fails due to __user in input.h(2010)

[#6088] Build fails due to __user in input.h

Submitted By: Jay Ku

Open Date

2010-07-01 14:15:11 Close Date

2010-07-01 16:14:44

Priority:

Medium Assignee:

Nobody

Status:

Closed Fixed In Release:

N/A

Found In Release:

snaps Release:

svn-9707

Category:

N/A Board:

N/A

Processor:

ALL Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Rejected

Uboot version or rev.:

Toolchain version or rev.:

svn-4690

App binary format:

N/A

Summary: Build fails due to __user in input.h

Details:

My build fails on this line in uclinux-dist/linux-2.6.x/include/linux/input.h:

struct ff_periodic_effect {

__u16 waveform;

__u16 period;

__s16 magnitude;

__s16 offset;

__u16 phase;

struct ff_envelope envelope;

__u32 custom_len;

// __s16 __user *custom_data; <-- causes build to fail (this is line 944)

__s16 *custom_data;

};

Failure is here:

make[4]: Entering directory `/home/jayk/blackfin_tools/latest/uclinux-dist/user/blkfin-test/event_test'

bfin-uclinux-gcc -pipe -Wall -g -O2 -mcpu=bf537-0.2 -Wall -DEMBED -D__uClinux__ -I/home/jayk/blackfin_tools/latest/uclinux-dist -mcpu=bf537-0.2 -Wl,-elf2flt -mcpu=bf537-0.2 event_test.c -o event_test

In file included from event_test.c:34:

/home/jayk/blackfin_tools/latest/toolchain/bfin-uclinux/bfin-uclinux/runtime/usr/include/linux/input.h:944: error: expected â:â, â,â, â;â, â}â or â__attribute__â before â*â token

If I take out the '__user' (as shown), it completes the build.

- Jay

Follow-ups

--- Mike Frysinger 2010-07-01 14:24:50

do not include linux headers directly from the source tree

--- Jay Ku 2010-07-01 15:24:21

What do you mean? I got everything out of SVN and tried to build... what did I

do wrong?

--- Mike Frysinger 2010-07-01 15:42:33

no kernel header installed by the toolchain build script includes __user in it.

line 944 of the installed header is *not* "custom_data". that means

you have an incorrect unsanitized header and your toolchain is broken.

--- Jay Ku 2010-07-01 15:55:02

I see. Initially I tried svn-9707 of uclinux with 2009R1-10 tools, which didn't

work. When troubleshooting this I messed with input.h in svn-9707. Eventually

I figured out I had to build with a more recent toolchain, so I re-built that

from source but I'd already messed with the latest input.h. I removed my

changes from input.h and copied it into the toolchain include directories

without rerunning the toolchainbuild script - I didn't realize the headers get

modified as part of the build script. Got it now.

--- Mike Frysinger 2010-07-01 16:11:50

ok, glad you sorted that out. fyi, we really only support the latest versions

of a branch/trunk and not any specific revision.

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