--xref linker option print not coming in stdout

As per documentation the linker option --xref would prints the external references to stdout. Couldn't find any reference to malloc in the output log  file(OUTPUTFILE.TXT) generated.

Following command is used for building.. Have enabled the xref in GUI. Where could we get this prints.. The intention is to parse the print so that external references like malloc, float etc is not there in the code being compiled

UV4 -b examples/projects/keil/STM32F413ZH/example.uvprojx -t "RELEASE" -o "OUTPUTFILE.TXT"

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