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Update linker_interceptor.py

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Andrea Fioraldi 2023-09-05 11:31:42 +02:00
parent fa42ed1dd2
commit 26c850174f
2 changed files with 18 additions and 8 deletions
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1
linker_interceptor++.py Symbolic link
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@ -0,0 +1 @@
linker_interceptor.py

25
linker_interceptor.py
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@ -4,17 +4,24 @@ import subprocess, shutil, json, sys, os
FILTER = ['-shared'] FILTER = ['-shared']
CC = os.getenv('__LIBAFL_QEMU_BUILD_CC') or 'cc'
CXX = os.getenv('__LIBAFL_QEMU_BUILD_CXX') or 'c++' CXX = os.getenv('__LIBAFL_QEMU_BUILD_CXX') or 'c++'
OUT = os.getenv('__LIBAFL_QEMU_BUILD_OUT') or 'linkinfo.json' OUT = os.getenv('__LIBAFL_QEMU_BUILD_OUT') or 'linkinfo.json'
args = sys.argv[1:] args = sys.argv[1:]
if '++' in sys.argv[0]:
cc = CXX
else:
cc = CC
out_args = [] out_args = []
shareds = [] shareds = []
search = [] search = []
islinking = False
def process_args(args): def process_args(args):
global out_args, shareds, search global out_args, shareds, search, islinking
prev_o = False prev_o = False
for i in range(len(args)): for i in range(len(args)):
@ -22,6 +29,7 @@ def process_args(args):
prev_o = False prev_o = False
continue continue
elif args[i] in FILTER: elif args[i] in FILTER:
islinking = True
continue continue
elif args[i].endswith('.so') and not args[i].startswith('-'): elif args[i].endswith('.so') and not args[i].startswith('-'):
name = os.path.basename(args[i])[3:-3] # remove prefix and suffix name = os.path.basename(args[i])[3:-3] # remove prefix and suffix
@ -45,11 +53,12 @@ def process_args(args):
process_args(args) process_args(args)
with open(OUT, 'w') as f: if islinking:
json.dump({ with open(OUT, 'w') as f:
'cmd': out_args, json.dump({
'libs': shareds, 'cmd': out_args,
'search': search, 'libs': shareds,
}, f, indent=2) 'search': search,
}, f, indent=2)
subprocess.run([CXX] + args) subprocess.run([cc] + args)