linker script does not put .cc files into flash

[hkahl]

In tools/sdk/ld/eagle.app.v6.common.ld.h files matching *.c.o and *.cpp .o are considered. The suffix ".cc" is a also pretty common for c++ files. Currently, if .cc is used somewhere, this code goes to iram by default which is quickly filled and linking fails.

This line in the script makes cpp files go to iram by default:
.cpp.o(.literal, .text*)

I suggest adding a line like this:
.cc.o(.literal, .text*)

to the linker script so that .cc file go to flash by default like .cpp files.

[earlephilhower]

Seems like a reasonable request. Do you want to submit a PR?