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-rw-r--r--lib/std/dwarf/abi.zig85
1 files changed, 43 insertions, 42 deletions
diff --git a/lib/std/dwarf/abi.zig b/lib/std/dwarf/abi.zig
index 7130341e8d..75ff3d1e9e 100644
--- a/lib/std/dwarf/abi.zig
+++ b/lib/std/dwarf/abi.zig
@@ -1,7 +1,8 @@
const builtin = @import("builtin");
const std = @import("../std.zig");
-const os = std.os;
const mem = std.mem;
+const native_os = builtin.os.tag;
+const posix = std.posix;
pub fn supportsUnwinding(target: std.Target) bool {
return switch (target.cpu.arch) {
@@ -138,7 +139,7 @@ pub fn regBytes(
reg_number: u8,
reg_context: ?RegisterContext,
) AbiError!RegBytesReturnType(@TypeOf(thread_context_ptr)) {
- if (builtin.os.tag == .windows) {
+ if (native_os == .windows) {
return switch (builtin.cpu.arch) {
.x86 => switch (reg_number) {
0 => mem.asBytes(&thread_context_ptr.Eax),
@@ -193,61 +194,61 @@ pub fn regBytes(
const ucontext_ptr = thread_context_ptr;
return switch (builtin.cpu.arch) {
- .x86 => switch (builtin.os.tag) {
+ .x86 => switch (native_os) {
.linux, .netbsd, .solaris, .illumos => switch (reg_number) {
- 0 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EAX]),
- 1 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.ECX]),
- 2 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EDX]),
- 3 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EBX]),
+ 0 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EAX]),
+ 1 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.ECX]),
+ 2 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EDX]),
+ 3 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EBX]),
4...5 => if (reg_context) |r| bytes: {
if (reg_number == 4) {
break :bytes if (r.eh_frame and r.is_macho)
- mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EBP])
+ mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EBP])
else
- mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.ESP]);
+ mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.ESP]);
} else {
break :bytes if (r.eh_frame and r.is_macho)
- mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.ESP])
+ mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.ESP])
else
- mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EBP]);
+ mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EBP]);
}
} else error.RegisterContextRequired,
- 6 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.ESI]),
- 7 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EDI]),
- 8 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EIP]),
- 9 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.EFL]),
- 10 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.CS]),
- 11 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.SS]),
- 12 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.DS]),
- 13 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.ES]),
- 14 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.FS]),
- 15 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.GS]),
+ 6 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.ESI]),
+ 7 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EDI]),
+ 8 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EIP]),
+ 9 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.EFL]),
+ 10 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.CS]),
+ 11 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.SS]),
+ 12 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.DS]),
+ 13 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.ES]),
+ 14 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.FS]),
+ 15 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.GS]),
16...23 => error.InvalidRegister, // TODO: Support loading ST0-ST7 from mcontext.fpregs
32...39 => error.InvalidRegister, // TODO: Support loading XMM0-XMM7 from mcontext.fpregs
else => error.InvalidRegister,
},
else => error.UnimplementedOs,
},
- .x86_64 => switch (builtin.os.tag) {
+ .x86_64 => switch (native_os) {
.linux, .solaris, .illumos => switch (reg_number) {
- 0 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RAX]),
- 1 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RDX]),
- 2 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RCX]),
- 3 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RBX]),
- 4 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RSI]),
- 5 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RDI]),
- 6 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RBP]),
- 7 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RSP]),
- 8 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R8]),
- 9 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R9]),
- 10 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R10]),
- 11 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R11]),
- 12 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R12]),
- 13 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R13]),
- 14 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R14]),
- 15 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.R15]),
- 16 => mem.asBytes(&ucontext_ptr.mcontext.gregs[os.REG.RIP]),
- 17...32 => |i| if (builtin.os.tag.isSolarish())
+ 0 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RAX]),
+ 1 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RDX]),
+ 2 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RCX]),
+ 3 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RBX]),
+ 4 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RSI]),
+ 5 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RDI]),
+ 6 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RBP]),
+ 7 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RSP]),
+ 8 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R8]),
+ 9 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R9]),
+ 10 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R10]),
+ 11 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R11]),
+ 12 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R12]),
+ 13 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R13]),
+ 14 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R14]),
+ 15 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.R15]),
+ 16 => mem.asBytes(&ucontext_ptr.mcontext.gregs[posix.REG.RIP]),
+ 17...32 => |i| if (native_os.isSolarish())
mem.asBytes(&ucontext_ptr.mcontext.fpregs.chip_state.xmm[i - 17])
else
mem.asBytes(&ucontext_ptr.mcontext.fpregs.xmm[i - 17]),
@@ -317,7 +318,7 @@ pub fn regBytes(
},
else => error.UnimplementedOs,
},
- .arm => switch (builtin.os.tag) {
+ .arm => switch (native_os) {
.linux => switch (reg_number) {
0 => mem.asBytes(&ucontext_ptr.mcontext.arm_r0),
1 => mem.asBytes(&ucontext_ptr.mcontext.arm_r1),
@@ -340,7 +341,7 @@ pub fn regBytes(
},
else => error.UnimplementedOs,
},
- .aarch64 => switch (builtin.os.tag) {
+ .aarch64 => switch (native_os) {
.macos, .ios => switch (reg_number) {
0...28 => mem.asBytes(&ucontext_ptr.mcontext.ss.regs[reg_number]),
29 => mem.asBytes(&ucontext_ptr.mcontext.ss.fp),
generated by cgit v1.2.3 (git 2.39.1) at 2026-01-01 06:24:37 +0000