FT32 makes use of multiple address spaces. When trying to inspect objects in GDB, GDB was treating them as a straight "const". The cause seems to be in GCC DWARF2 output. This output is handled in gcc/gcc/dwarf2out.c, where modified_type_die() checks that TYPE has qualifiers CV_QUALS. However while TYPE has ADDR_SPACE qualifiers, the modified_type_die() explicitly discards the ADDR_SPACE qualifiers. This patch retains the ADDR_SPACE qualifiers as modified_type_die() outputs the DWARF type tree. This allows the types to match, and correct type information for the object is emitted. [gcc] 2017-11-06 James Bowman <james.bowman@ftdichip.com> * gcc/dwarf2out.c (modified_type_die): Retain ADDR_SPACE qualifiers. (add_type_attribute) likewise. From-SVN: r254484
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