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main: strip debug information at link time instead of at compile time

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Stripping debug information at link time also allows relocation
compression (aka linker relaxations). Keeping debug information at
compile time and optionally stripping it at link time has some
advantages:

  * Automatic stack sizes on Cortex-M rely on the presence of debug
    information.
  * Some parts of the compiler now rely on the presence of debug
    information for proper diagnostics.
  * It works better with the cache: there is no distinction between
    debug and no-debug builds.
  * It makes it easier (or possible at all) to enable debug information
    in the wasi-libc library without big downsides.
This commit is contained in:
Ayke van Laethem
2021-07-13 16:59:43 +02:00
committed by Ron Evans
parent 65c1978965
commit 7434e5a2c7
3 changed files with 40 additions and 7 deletions
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main.go
+1 -1
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@@ -1019,7 +1019,7 @@ func main() {
printStacks := flag.Bool("print-stacks", false, "print stack sizes of goroutines")
printAllocsString := flag.String("print-allocs", "", "regular expression of functions for which heap allocations should be printed")
printCommands := flag.Bool("x", false, "Print commands")
nodebug := flag.Bool("no-debug", false, "disable DWARF debug symbol generation")
nodebug := flag.Bool("no-debug", false, "strip debug information")
ocdCommandsString := flag.String("ocd-commands", "", "OpenOCD commands, overriding target spec (can specify multiple separated by commas)")
ocdOutput := flag.Bool("ocd-output", false, "print OCD daemon output during debug")
port := flag.String("port", "", "flash port (can specify multiple candidates separated by commas)")