xref: /aosp_15_r20/external/pigweed/pw_elf/examples/reader.cc (revision 61c4878ac05f98d0ceed94b57d316916de578985)
1 // Copyright 2024 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 //     https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14 
15 #include "pw_elf/reader.h"
16 
17 #include <vector>
18 
19 #include "pw_status/try.h"
20 #include "pw_stream/std_file_stream.h"
21 
ReaderExample()22 pw::Status ReaderExample() {
23   // Open a file stream for the ELF image.
24   pw::stream::StdFileReader stream("/tmp/example.elf");
25 
26   // Create an ElfReader from the file stream.
27   PW_TRY_ASSIGN(auto reader, pw::elf::ElfReader::FromStream(stream));
28 
29   // Read the .example section into a vector.
30   PW_TRY_ASSIGN(std::vector<std::byte> section_data,
31                 reader.ReadSection(".example"));
32 
33   return pw::OkStatus();
34 }
35