mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-02-13 21:08:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

std.pie: add alpha support

Browse Source
This commit is contained in:
Alex Rønne Petersen 2025-10-21 05:07:14 +02:00
parent 4193ea8239
commit fc48f8aa55
No known key found for this signature in database
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
lib/std/pie.zig
View File

@ -3,6 +3,7 @@ const builtin = @import("builtin");
const elf = std.elf;
const assert = std.debug.assert;
const R_ALPHA_RELATIVE = 27;
const R_AMD64_RELATIVE = 8;
const R_386_RELATIVE = 8;
const R_ARC_RELATIVE = 56;
@ -25,6 +26,7 @@ const R_RELATIVE = switch (builtin.cpu.arch) {
.arc, .arceb => R_ARC_RELATIVE,
.arm, .armeb, .thumb, .thumbeb => R_ARM_RELATIVE,
.aarch64, .aarch64_be => R_AARCH64_RELATIVE,
.alpha => R_ALPHA_RELATIVE,
.csky => R_CSKY_RELATIVE,
.hexagon => R_HEXAGON_RELATIVE,
.loongarch32, .loongarch64 => R_LARCH_RELATIVE,
@ -83,6 +85,15 @@ inline fn getDynamicSymbol() [*]const elf.Dyn {
\\ add %[ret], %[ret], #:lo12:_DYNAMIC
: [ret] "=r" (-> [*]const elf.Dyn),
),
// The compiler is not required to load the GP register, so do it ourselves.
.alpha => asm volatile (
\\ br $29, 1f
\\1:
\\ ldgp $29, 0($29)
\\ ldq %[ret], -0x8000($29)
: [ret] "=r" (-> [*]const elf.Dyn),
:
: .{ .r26 = true }),
// The CSKY ABI requires the gb register to point to the GOT. Additionally, the first
// entry in the GOT is defined to hold the address of _DYNAMIC.
.csky => asm volatile (