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Gdb reload (#10408)

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* gdb pretty printer survive reload

* precise printer injection
This commit is contained in:
Miran 2019-01-22 06:25:11 +01:00 • committed by GitHub
commit a0e8d4a93f
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 8 deletions
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25
tools/nim-gdb.py
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@ -1,4 +1,3 @@
import gdb
import re
import sys
@ -16,8 +15,6 @@ def printErrorOnce(id, message):
errorSet.add(id)
gdb.write(message, gdb.STDERR)
nimobjfile = gdb.current_objfile() or gdb.objfiles()[0]
nimobjfile.type_printers = []
################################################################################
##### Type pretty printers
@ -121,9 +118,6 @@ class NimTypePrinter:
def instantiate(self):
return NimTypeRecognizer()
nimobjfile.type_printers = [NimTypePrinter()]
################################################################################
##### GDB Function, equivalent of Nim's $ operator
################################################################################
@ -528,5 +522,20 @@ def makematcher(klass):
printErrorOnce(typeName, "No matcher for type '" + typeName + "': " + str(e) + "\n")
return matcher
nimobjfile.pretty_printers = []
nimobjfile.pretty_printers.extend([makematcher(var) for var in list(vars().values()) if hasattr(var, 'pattern')])
def register_nim_pretty_printers_for_object(objfile):
nimMainSym = gdb.lookup_global_symbol("NimMain", gdb.SYMBOL_FUNCTIONS_DOMAIN)
if nimMainSym and nimMainSym.symtab.objfile == objfile:
print("set Nim pretty printers for ", objfile.filename)
objfile.type_printers = [NimTypePrinter()]
objfile.pretty_printers = [makematcher(var) for var in list(globals().values()) if hasattr(var, 'pattern')]
# Register pretty printers for all objfiles that are already loaded.
for old_objfile in gdb.objfiles():
register_nim_pretty_printers_for_object(old_objfile)
# Register an event handler to register nim pretty printers for all future objfiles.
def new_object_handler(event):
register_nim_pretty_printers_for_object(event.new_objfile)
gdb.events.new_objfile.connect(new_object_handler)