simink_build/
lib.rs

1use std::{env, fs::File, io::Write, path::PathBuf};
2
3pub fn simink_gen_blinker(offset: usize) {
4    let target = env::var("TARGET").unwrap();
5    let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
6    if target.starts_with("aarch64") {
7        let mut f = File::create(out.join("linker.ld")).unwrap();
8        writeln!(f, "OUTPUT_ARCH(aarch64)\nENTRY(_text)\nSECTIONS\n{{").unwrap();
9        writeln!(
10            f,
11            "    /DISCARD/ : {{
12        *(.discard)
13        *(.discard.*)
14        *(.interp .dynamic)
15        *(.dynsym, .dynstr .hash .gnu.hash)
16        *(.eh_frame)
17    }}"
18        )
19        .unwrap();
20        writeln!(f, "    . = {:#x};", offset).unwrap();
21        writeln!(
22            f,
23            "    .head.text : {{
24        _text = .;
25        KEEP(*(.head.text))
26    }}
27    .text : {{
28        _stext = .;
29        . = ALIGN(8);
30        *(.text.hot .text.* .text.fixup .text.unlikely)
31        *(.fixup)
32        *(.gnu.warning)
33        . = ALIGN(16);
34        *(.got)
35    }}
36
37    .got.plt : {{ *(.got.plt) }}
38    . = ALIGN(0x10000);
39    _etext = .;
40
41    . = ALIGN(4096);
42    .rodata : AT(ADDR(.rodata)) {{
43        __start_rodata = .;
44        *(.rodata) *(.rodata.*)
45    }}
46    .rodata1 : AT(ADDR(.rodata1)) {{
47        *(.rodata1)
48        __end_rodata = .;
49    }}
50    .notes : AT(ADDR(.notes)) {{
51        __start_notes = .;
52        KEEP(*(.note.*))
53        __stop_notes = .;
54    }}
55
56    . = ALIGN(4096);
57    .data : AT(ADDR(.data)) {{
58        _sdata = .;
59        . = ALIGN(1 << 14);
60        __start_stack = .;
61        . = __start_stack + (1 << 14);
62        __top_stack = .;
63        . = ALIGN(4096);
64        *(.data*)
65        CONSTRUCTORS
66        _edata = .;
67    }}
68
69    __bss_start = .;
70    .sbss : AT(ADDR(.sbss)) {{
71        *(.dynsbss) *(.sbss) *(.scommon)
72    }}
73    .bss : AT(ADDR(.bss)) {{
74        *(.dynbss) *(.bss*) *(COMMON)
75    }}
76    . = ALIGN(8);
77    __bss_stop = .;
78    _end = .;
79    .stab 0 : {{ *(.stab) }} .stabstr 0 : {{ *(.stabstr) }} .stab.excl 0 : {{ *(.stab.excl) }} .stab.exclstr 0 : {{ *(.stab.exclstr) }} .stab.index 0 : {{ *(.stab.index) }} .stab.indexstr 0 : {{ *(.stab.indexstr) }}
80    .debug 0 : {{ *(.debug) }} .line 0 : {{ *(.line) }} .debug_srcinfo 0 : {{ *(.debug_srcinfo) }} .debug_sfnames 0 : {{ *(.debug_sfnames) }} .debug_aranges 0 : {{ *(.debug_aranges) }} .debug_pubnames 0 : {{ *(.debug_pubnames) }} .debug_info 0 : {{ *(.debug_info .gnu.linkonce.wi.*) }} .debug_abbrev 0 : {{ *(.debug_abbrev) }} .debug_line 0 : {{ *(.debug_line) }} .debug_frame 0 : {{ *(.debug_frame) }} .debug_str 0 : {{ *(.debug_str) }} .debug_loc 0 : {{ *(.debug_loc) }} .debug_macinfo 0 : {{ *(.debug_macinfo) }} .debug_pubtypes 0 : {{ *(.debug_pubtypes) }} .debug_ranges 0 : {{ *(.debug_ranges) }} .debug_weaknames 0 : {{ *(.debug_weaknames) }} .debug_funcnames 0 : {{ *(.debug_funcnames) }} .debug_typenames 0 : {{ *(.debug_typenames) }} .debug_varnames 0 : {{ *(.debug_varnames) }} .debug_gnu_pubnames 0 : {{ *(.debug_gnu_pubnames) }} .debug_gnu_pubtypes 0 : {{ *(.debug_gnu_pubtypes) }} .debug_types 0 : {{ *(.debug_types) }} .debug_addr 0 : {{ *(.debug_addr) }} .debug_line_str 0 : {{ *(.debug_line_str) }} .debug_loclists 0 : {{ *(.debug_loclists) }} .debug_macro 0 : {{ *(.debug_macro) }} .debug_names 0 : {{ *(.debug_names) }} .debug_rnglists 0 : {{ *(.debug_rnglists) }} .debug_str_offsets 0 : {{ *(.debug_str_offsets) }}
81    .comment 0 : {{ *(.comment) }} .symtab 0 : {{ *(.symtab) }} .strtab 0 : {{ *(.strtab) }} .shstrtab 0 : {{ *(.shstrtab) }}
82    .plt : {{
83        *(.plt) *(.plt.*) *(.iplt) *(.igot .igot.plt)
84    }}
85    ASSERT(SIZEOF(.plt) == 0, \"Unexpected run-time procedure linkages detected!\")
86    .data.rel.ro : {{ *(.data.rel.ro) }}
87    ASSERT(SIZEOF(.data.rel.ro) == 0, \"Unexpected RELRO detected!\")
88}}"
89        )
90        .unwrap();
91    }
92
93    println!("cargo:rustc-link-search={}", out.display());
94
95    println!("cargo:rerun-if-changed=build.rs");
96    println!("cargo:rustc-link-arg=-Tlinker.ld");
97}
simink_build/lib.rs

simink_build/
lib.rs
