Chris Laplante 0e15931688 bitbake: build: print a backtrace with the original metadata locations of Bash shell funcs
Leverage the comments that emit_var writes and the backtrace that
the shell func writes to generate an additional metadata-relative
backtrace. This will help the user troubleshoot shell funcs much
more easily.

Example:

| WARNING: /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955:171 exit 1 from 'exit 1'
| WARNING: Backtrace (BB generated script):
| 	#1: myclass_do_something, /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955, line 171
| 	#2: do_something, /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955, line 166
| 	#3: actually_fail, /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955, line 153
| 	#4: my_compile_extra, /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955, line 155
| 	#5: do_compile, /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955, line 141
| 	#6: main, /home/laplante/repos/oe-core/build/tmp-glibc/work/core2-64-oe-linux/libsolv/0.7.14-r0/temp/run.do_compile.68955, line 184
|
| Backtrace (metadata-relative locations):
| 	#1: myclass_do_something, /home/laplante/repos/oe-core/meta/classes/myclass.bbclass, line 2
| 	#2: do_something, autogenerated, line 2
| 	#3: actually_fail, /home/laplante/repos/oe-core/meta/recipes-extended/libsolv/libsolv_0.7.14.bb, line 36
| 	#4: my_compile_extra, /home/laplante/repos/oe-core/meta/recipes-extended/libsolv/libsolv_0.7.14.bb, line 38
| 	#5: do_compile, autogenerated, line 3
ERROR: Task (/home/laplante/repos/oe-core/meta/recipes-extended/libsolv/libsolv_0.7.14.bb:do_compile) failed with exit code '1'
NOTE: Tasks Summary: Attempted 542 tasks of which 541 didn't need to be rerun and 1 failed.

Summary: 1 task failed:
  /home/laplante/repos/oe-core/meta/recipes-extended/libsolv/libsolv_0.7.14.bb:do_compile
Summary: There was 1 ERROR message shown, returning a non-zero exit code.

(Bitbake rev: ae1aa4ea79826c32b20e1e7abdf77a15b601c6f2)

Signed-off-by: Chris Laplante <chris.laplante@agilent.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-08-15 11:44:20 +01:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
Description
No description provided
Readme 251 MiB