[Android-tools-devel] Bug#992127: fastboot fails to flash 2GB+ raw images on 32bit hosts

[Marek Szyprowski]

Package: fastboot
Version: 1:8.1.0+r23-5
Severity: normal

Dear Maintainer,

flashing a large (2GB+) RAW image with fastboot fails if tool is compiled
for 32bit host (x86 or arm) with the following error:

fastboot flash system_a rootfs.img
error: cannot load 'rootfs.img': Value too large for defined data type

This issue happens only when flashed image is in RAW format. So called
'android-sparse' images (simg) are handled properly even if they are
larger than 2GB.

I've added -D_FILE_OFFSET_BITS=64 to DEB_CPPFLAGS_MAINT_APPEND in
debian/rules and rebuild the deb package. Then it properly handles 2GB+
files on 32bit hosts, so this is a matter of using a proper large file
API in the source code. fastboot tool compiled for 64bit hosts (x86_64 or
arm64) handles such files without any problem.

Best regards,
Marek Szyprowski

-- System Information:
Debian Release: 10.6
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: armel (armv7l)

Kernel: Linux 5.9.16 (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages fastboot depends on:
ii  android-libadb         1:8.1.0+r23-5
ii  android-libbase        1:8.1.0+r23-5
ii  android-libcutils      1:8.1.0+r23-5
ii  android-libf2fs-utils  8.1.0+r23-2
ii  android-libsparse      1:8.1.0+r23-5
ii  android-libutils       1:8.1.0+r23-5
ii  android-libziparchive  1:8.1.0+r23-5
ii  libc6                  2.28-10
ii  libgcc1                1:8.3.0-6
ii  libstdc++6             8.3.0-6

Versions of packages fastboot recommends:
ii  android-sdk-platform-tools  27.0.0+11+deb10u1

fastboot suggests no packages.

-- no debconf information