commit 1ae10a006e2acd601d14112e6f0f91c030d2cd08
author Motomu Utsumi <motomuman@google.com> Thu Jul 17 10:45:19 2025 +0900
committer Motomu Utsumi <motomuman@google.com> Thu Jul 17 08:49:51 2025 -0700
tree f6c2c2f773764f26e756226b1bee820661f78b4d
parent e9dcc62d2da65516ec319fd89ba613211930d482

NetBpfLoad: less copies

This is a cherry-pick of ag/34620709 to NetBpfLoad

Test: TH
Flag: EXEMPT no-op
Bug: 428792764
Change-Id: Ia5aaa30cab71a2051b6c787824798958f2dee3f5

bpf/loader/NetBpfLoad.cpp

diff --git a/bpf/loader/NetBpfLoad.cpp b/bpf/loader/NetBpfLoad.cpp
index 10b0601..130fbc0 100644
--- a/bpf/loader/NetBpfLoad.cpp
+++ b/bpf/loader/NetBpfLoad.cpp
@@ -349,15 +349,12 @@
         if (!secname) continue;
 
         if (!strcmp(secname, name)) {
-            vector<char> dataTmp;
-            dataTmp.resize(shTable[i].sh_size);
-
             elfFile.seekg(shTable[i].sh_offset);
             if (elfFile.fail()) return -1;
 
-            if (!elfFile.read((char*)dataTmp.data(), shTable[i].sh_size)) return -1;
+            data.resize(shTable[i].sh_size);
+            if (!elfFile.read(data.data(), shTable[i].sh_size)) return -1;
 
-            data = dataTmp;
             return 0;
         }
     }
@@ -397,15 +394,12 @@
     for (int i = 0; i < (int)shTable.size(); i++) {
         if ((int)shTable[i].sh_type != type) continue;
 
-        vector<char> dataTmp;
-        dataTmp.resize(shTable[i].sh_size);
-
         elfFile.seekg(shTable[i].sh_offset);
         if (elfFile.fail()) return -1;
 
-        if (!elfFile.read((char*)dataTmp.data(), shTable[i].sh_size)) return -1;
+        data.resize(shTable[i].sh_size);
+        if (!elfFile.read(data.data(), shTable[i].sh_size)) return -1;
 
-        data = dataTmp;
         return 0;
     }
     return -2;