53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
#![allow(missing_docs)]
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use crate::Format;
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use test_assembler::{Label, Section};
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pub trait GimliSectionMethods {
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fn sleb(self, val: i64) -> Self;
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fn uleb(self, val: u64) -> Self;
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fn initial_length(self, format: Format, length: &Label, start: &Label) -> Self;
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fn word(self, size: u8, val: u64) -> Self;
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fn word_label(self, size: u8, val: &Label) -> Self;
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}
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impl GimliSectionMethods for Section {
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fn sleb(mut self, mut val: i64) -> Self {
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while val & !0x3f != 0 && val | 0x3f != -1 {
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self = self.D8(val as u8 | 0x80);
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val >>= 7;
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}
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self.D8(val as u8 & 0x7f)
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}
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fn uleb(mut self, mut val: u64) -> Self {
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while val & !0x7f != 0 {
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self = self.D8(val as u8 | 0x80);
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val >>= 7;
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}
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self.D8(val as u8)
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}
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fn initial_length(self, format: Format, length: &Label, start: &Label) -> Self {
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match format {
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Format::Dwarf32 => self.D32(length).mark(start),
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Format::Dwarf64 => self.D32(0xffff_ffff).D64(length).mark(start),
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}
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}
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fn word(self, size: u8, val: u64) -> Self {
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match size {
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4 => self.D32(val as u32),
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8 => self.D64(val),
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_ => panic!("unsupported word size"),
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}
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}
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fn word_label(self, size: u8, val: &Label) -> Self {
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match size {
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4 => self.D32(val),
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8 => self.D64(val),
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_ => panic!("unsupported word size"),
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}
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}
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}
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