From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Mon, 8 Jan 2024 01:21:28 +0400
Subject: Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
---
vendor/backtrace/build.rs | 49 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
create mode 100644 vendor/backtrace/build.rs
(limited to 'vendor/backtrace/build.rs')
diff --git a/vendor/backtrace/build.rs b/vendor/backtrace/build.rs
new file mode 100644
index 0000000..9bd3abd
--- /dev/null
+++ b/vendor/backtrace/build.rs
@@ -0,0 +1,49 @@
+extern crate cc;
+
+use std::env;
+use std::path::Path;
+
+// Must be public so the build script of `std` can call it.
+pub fn main() {
+ match env::var("CARGO_CFG_TARGET_OS").unwrap_or_default().as_str() {
+ "android" => build_android(),
+ _ => {}
+ }
+}
+
+fn build_android() {
+ // Resolve `src/android-api.c` relative to this file.
+ // Required to support calling this from the `std` build script.
+ let android_api_c = Path::new(file!())
+ .parent()
+ .unwrap()
+ .join("src/android-api.c");
+ let expansion = match cc::Build::new().file(android_api_c).try_expand() {
+ Ok(result) => result,
+ Err(e) => {
+ println!("failed to run C compiler: {}", e);
+ return;
+ }
+ };
+ let expansion = match std::str::from_utf8(&expansion) {
+ Ok(s) => s,
+ Err(_) => return,
+ };
+ println!("expanded android version detection:\n{}", expansion);
+ let marker = "APIVERSION";
+ let i = match expansion.find(marker) {
+ Some(i) => i,
+ None => return,
+ };
+ let version = match expansion[i + marker.len() + 1..].split_whitespace().next() {
+ Some(s) => s,
+ None => return,
+ };
+ let version = match version.parse::<u32>() {
+ Ok(n) => n,
+ Err(_) => return,
+ };
+ if version >= 21 {
+ println!("cargo:rustc-cfg=feature=\"dl_iterate_phdr\"");
+ }
+}
--
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