Bug#915194: gcc-8-cross: mips64el-linux-gnuabi64-gcc-8 munmap_chunk(): invalid pointer when build for o32

[YunQiang Su <wzssyqa@gmail.com>]

Package: src:gcc-8-cross
Version: 23

These bellow cmd will show:
  munmap_chunk(): invalid pointer
  Aborted

$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -c -mabi=32 -xc -
$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -B
/non_exists/ -c -mabi=32 -xc -
$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -B
/usr/share -c -mabi=32 -xc -
$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -EB -c
-mabi=32 -xc -


Some other example that work well

$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -c -mabi=n32 -xc -
$  # works well, use abi=n32

$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -c -mabi=64 -xc -
$  # works well, use abi=64

$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -B
/usr/mips64el-linux-gnuabi64/bin/ -c -mabi=32 -xc -
$ # works well, add -B option

$ echo "int a(){ return 1; }" | mips64el-linux-gnuabi64-gcc-8 -B
/usr/bin/ -c -mabi=32 -xc -
$ # works well,  add -B option

$ echo "int a(){ return 1; }" | mips64-linux-gnuabi64-gcc-8 -c -mabi=32 -xc -
$ # works well,  add  use mips64 aka eb

$ echo "int a(){ return 1; }" | mips64-linux-gnuabi64-gcc-8  -EL -c
-mabi=32 -xc -
$ # works well,  add  use mips64 aka eb, and with -EL option.

Is it an upstream bug?

--
YunQiang Su