varun-r-mallya/python-bpf
1
0
Fork 0
mirror of https://github.com/varun-r-mallya/Python-BPF.git synced 2025-12-31 21:06:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Allocate twice for map lookups

Browse Source
This commit is contained in:
Pragyansh Chaturvedi
2025-10-10 06:09:46 +05:30
parent 489244a015
commit 047f361ea9
2 changed files with 15 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
pythonbpf/functions/functions_pass.py
View File

@ -455,10 +455,17 @@ def allocate_mem(
f"Pre-allocated variable {var_name} for struct {call_type}"
)
elif isinstance(rval.func, ast.Attribute):
# Map method call
ir_type = ir.PointerType(ir.IntType(64))
var = builder.alloca(ir_type, name=var_name)
# declare an intermediate ptr type for map lookup
ir_type = ir.IntType(64)
var_tmp = builder.alloca(ir_type, name=f"{var_name}_tmp")
# var.align = ir_type.width // 8
logger.info(f"Pre-allocated variable {var_name} for map")
logger.info(
f"Pre-allocated variable {var_name} and {var_name}_tmp for map"
)
else:
logger.info("Unsupported assignment call function type")
continue
@ -496,6 +503,9 @@ def allocate_mem(
local_sym_tab[var_name] = LocalSymbol(var, ir_type, call_type)
else:
local_sym_tab[var_name] = LocalSymbol(var, ir_type)
if var_tmp:
local_sym_tab[f"{var_name}_tmp"] = LocalSymbol(var_tmp, ir_type)
return local_sym_tab