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authorSteve Reinhardt <steve.reinhardt@amd.com>2015-10-06 17:26:50 -0700
committerSteve Reinhardt <steve.reinhardt@amd.com>2015-10-06 17:26:50 -0700
commit90c279e4b1ddb87780b667ccec6bda64e6a77b96 (patch)
tree2c107a2b5db1a2764a1e853fd2401f449aaeb163 /src/cpu
parent2511490c9cf988797afb613040c256fc06b684e0 (diff)
downloadgem5-90c279e4b1ddb87780b667ccec6bda64e6a77b96.tar.xz
arch: clean up isa_parser error handling
Although some decent error messages were getting generated inside isa_parser.py, they weren't always getting printed because of the screwy way we were handling exceptions. (Basically an inner exception would get hidden by an outer exception, and the more informative inner error message would not get printed.) Also line numbers were messed up, since they were taken from the lexer, which is typically a token (or more) ahead of the grammar rule that's being matched. Using the 'lineno' attribute that PLY associates with the grammar production is more accurate. The new LineTracker class extends lineno to track filenames as well as line numbers.
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