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cgo: Only allow numeric / string / character type constants for references
to #defined things. Fixes #520. R=rsc, rsaarelm CC=golang-dev https://golang.org/cl/186138
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@ -48,8 +48,14 @@ func (p *Prog) loadDebugInfo() {
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val = strings.TrimSpace(line[tabIndex:])
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}
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// Only allow string, character, and numeric constants. Ignoring #defines for
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// symbols allows those symbols to be referenced in Go, as they will be
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// translated by gcc later.
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_, err := strconv.Atoi(string(val[0]))
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if err == nil || val[0] == '\'' || val[0] == '"' {
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defines[key] = val
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}
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}
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// Construct a slice of unique names from p.Crefs.
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m := make(map[string]int)
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