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While multiple hardlinks of binary located in different dirs, there are also multiple hardlinks of separated debug info file with the same binary name in same debug dirs. But in each dir, only one debug file with original name works. Because all of binary hardlinks have one `.gnu_debuglink' which is added in `splitdebuginfo'. It caused gdb could not find debugging symbols. [Before the patch] $ find . ./usr/bin/foo ./usr/bin/foo-hd1 ./usr/bin/.debug ./usr/bin/.debug/foo ./usr/bin/.debug/foo-hd1 ./usr/libexec/foo-hd2 ./usr/libexec/.debug ./usr/libexec/.debug/foo-hd2 $ readelf --debug-dump usr/libexec/foo-hd2 Contents of the .gnu_debuglink section: Separate debug info file: foo $ gdb usr/libexec/foo-hd2 Reading symbols from usr/libexec/foo-hd2...(no debugging symbols found)...done. [Before the patch] [Apply the patch] $ find . ./usr/bin/foo ./usr/bin/foo-hd1 ./usr/bin/.debug ./usr/bin/.debug/foo ./usr/libexec/foo-hd2 ./usr/libexec/.debug ./usr/libexec/.debug/foo $ gdb usr/libexec/foo-hd2 Reading symbols from usr/libexec/foo-hd2...Reading symbols from usr/libexec/.debug/foo...done. [Apply the patch] (From OE-Core rev: d4eaf42f7708f8d3a31a04d958bd7420dd7dd6b9) Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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.