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Regain control over the SDK libraries for Rust #269

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Regain control over the SDK libraries for Rust #269

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8f52cdb
Adapting to the C SDK with updated static libraries
iartemov-ledger Jun 20, 2025
8928b75
Using libc only, uing picolibc
iartemov-ledger Jul 4, 2025
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14 changes: 6 additions & 8 deletions ledger_secure_sdk_sys/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -169,7 +169,7 @@ impl SDKBuilder<'_> {

let gcc_toolchain = if sysroot.is_empty() {
// path for Debian-based systems
String::from("/usr/lib/arm-none-eabi")
String::from("/usr/lib/picolibc/arm-none-eabi")
} else {
format!("{sysroot}")
};
Expand Down Expand Up @@ -302,13 +302,13 @@ impl SDKBuilder<'_> {
// Set ARM pre-compiled libraries path
self.device.arm_libs = match self.device.name {
DeviceName::NanoX => {
let mut path = self.device.c_sdk.display().to_string();
path.push_str("/arch/st33/lib");
let mut path = self.gcc_toolchain.display().to_string();
path.push_str("/lib/thumb/v7-m/nofp");
path
}
DeviceName::NanoSPlus | DeviceName::Flex | DeviceName::Stax => {
let mut path = self.device.c_sdk.display().to_string();
path.push_str("/arch/st33k1/lib");
let mut path = self.gcc_toolchain.display().to_string();
path.push_str("/lib/thumb/v8-m.main/nofp");
path
}
};
Expand Down Expand Up @@ -434,11 +434,9 @@ impl SDKBuilder<'_> {

command.compile("ledger-secure-sdk");

/* Link with libc, libm and libgcc */
/* Link with libc */
let path = self.device.arm_libs.clone();
println!("cargo:rustc-link-lib=c");
println!("cargo:rustc-link-lib=m");
println!("cargo:rustc-link-lib=gcc");

println!("cargo:rustc-link-search={path}");
Ok(())
Expand Down
2 changes: 0 additions & 2 deletions ledger_secure_sdk_sys/link.ld
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Expand Up @@ -124,8 +124,6 @@ SECTIONS
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
*(.debug_info)
}
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