[readelf] Handle unknown name of main in .gdb_index section
When compiling hello world and adding a v9 .gdb-index section:
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$ gcc -g hello.c
$ gdb-add-index a.out
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readelf shows it as:
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Shortcut table:
Language of main: unknown: 0
Name of main: ^A
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The documentation of gdb says about the "Name of main" that:
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This value must be ignored if the value for the language of main is zero.
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Implement this approach in display_gdb_index, such that we have instead:
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Shortcut table:
Language of main: unknown: 0
Name of main: <unknown>
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Tested on x86_64-linux.
Approved-By: Jan Beulich <jbeulich@suse.com>
2 files changed
