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Auto merge of #62281 - Disasm:riscv-pic, r=nagisa

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Add support for pc-relative addressing on 64-bit RISC-V

These changes allow Rust to generate position-independent code on `riscv64` targets with code model `medium`.

Closes: https://github.com/rust-lang/rust/issues/59802
See also: https://github.com/rust-embedded/riscv-rt/issues/25, https://github.com/rust-embedded/wg/issues/218
This commit is contained in:
bors 2019-07-07 01:14:42 +00:00
commit 4393768faa
3 changed files with 3 additions and 1 deletions
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1
src/librustc_target/spec/riscv64gc_unknown_none_elf.rs
View file

@ -23,6 +23,7 @@ pub fn target() -> TargetResult {
executables: true, executables: true,
panic_strategy: PanicStrategy::Abort, panic_strategy: PanicStrategy::Abort,
relocation_model: "static".to_string(), relocation_model: "static".to_string(),
code_model: Some("medium".to_string()),
emit_debug_gdb_scripts: false, emit_debug_gdb_scripts: false,
abi_blacklist: super::riscv_base::abi_blacklist(), abi_blacklist: super::riscv_base::abi_blacklist(),
eliminate_frame_pointer: false, eliminate_frame_pointer: false,

1
src/librustc_target/spec/riscv64imac_unknown_none_elf.rs
View file

@ -23,6 +23,7 @@ pub fn target() -> TargetResult {
executables: true, executables: true,
panic_strategy: PanicStrategy::Abort, panic_strategy: PanicStrategy::Abort,
relocation_model: "static".to_string(), relocation_model: "static".to_string(),
code_model: Some("medium".to_string()),
emit_debug_gdb_scripts: false, emit_debug_gdb_scripts: false,
abi_blacklist: super::riscv_base::abi_blacklist(), abi_blacklist: super::riscv_base::abi_blacklist(),
eliminate_frame_pointer: false, eliminate_frame_pointer: false,

2
src/llvm-project

@ -1 +1 @@
Subproject commit 1bbe0b3e1d756116cbf1fcf049555066ef929008 Subproject commit 8538d56b2dd450063547a7690f7ffa2ac37c9c65