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If dwz binary is available in the system, test delve's ability to find deduplicated symbols in the DWARF information. dwzcompression.go contains a small C function (void fortytwo()) which calls glibc's fprintf with stdin as first argument. Normally, stdin will be present as a DW_TAG_variable as part of a DW_TAG_compile_unit named dwzcompression.cgo2.c. After running dwz on the binary, stdin is moved to a DW_TAG_partial_unit, which is imported from dwzcompression.cgo2.c with a DW_TAG_imported_unit. This test verifies that delve is able to find stdin symbol's type, as a way to confirm it understands dwz's compressed/deduplicated DWARF information.
15 lines
176 B
Go
15 lines
176 B
Go
package main
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// #include <stdio.h>
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// void fortytwo()
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// {
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// fprintf(stdin, "42");
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// }
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import "C"
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import "runtime"
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func main() {
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C.fortytwo()
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runtime.Breakpoint()
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}
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