commit 05765eee93b0bb72e9efd20746baab85f6e71d95
author Prashant Bhole <pbhole@users.noreply.github.com> Fri Dec 28 01:47:56 2018 +0900
committer yonghong-song <ys114321@gmail.com> Thu Dec 27 08:47:56 2018 -0800
tree d45aa4ae063a5a56b8afd064b6f34514c3290a46
parent a94cbbf4c2d98e30234726891ae44f518aae93c7

trace.py: fix compiler warning (#2094)

Compiler shows warning "incompatible integer to pointer conversion
initializing" while compiling bpf program.
This patch adds necessary typecast when assigning PT_REGS_PARAM vaules
to struct pt_regs pointer

tools/trace.py

diff --git a/tools/trace.py b/tools/trace.py
index 2233305..e1845da 100755
--- a/tools/trace.py
+++ b/tools/trace.py
@@ -216,17 +216,17 @@
         }
 
         aliases_indarg = {
-                "arg1": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM1(ctx);"
+                "arg1": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM1(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM1(_ctx))); _val;})",
-                "arg2": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM2(ctx);"
+                "arg2": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM2(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM2(_ctx))); _val;})",
-                "arg3": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM3(ctx);"
+                "arg3": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM3(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM3(_ctx))); _val;})",
-                "arg4": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM4(ctx);"
+                "arg4": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM4(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM4(_ctx))); _val;})",
-                "arg5": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM5(ctx);"
+                "arg5": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM5(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM5(_ctx))); _val;})",
-                "arg6": "({u64 _val; struct pt_regs *_ctx = PT_REGS_PARM6(ctx);"
+                "arg6": "({u64 _val; struct pt_regs *_ctx = (struct pt_regs *)PT_REGS_PARM6(ctx);"
                         "  bpf_probe_read(&_val, sizeof(_val), &(PT_REGS_PARM6(_ctx))); _val;})",
         }