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segment_command_64

The 64-bit segment load command indicates that a part of this file is to be mapped into a 64-bit task's address space. If the 64-bit segment has sections then section_64 structures directly follow the 64-bit segment command and their size is reflected in cmdsize.

macho.segment_command_64

pub const segment_command_64 = extern struct

File

lib/std/macho.zig:638

Code

pub const segment_command_64 = extern struct {
    /// LC_SEGMENT_64
    cmd: LC = .SEGMENT_64,

    /// includes sizeof section_64 structs
    cmdsize: u32,
    // TODO lazy values in stage2
    // cmdsize: u32 = @sizeOf(segment_command_64),

    /// segment name
    segname: [16]u8,

    /// memory address of this segment
    vmaddr: u64 = 0,

    /// memory size of this segment
    vmsize: u64 = 0,

    /// file offset of this segment
    fileoff: u64 = 0,

    /// amount to map from the file
    filesize: u64 = 0,

    /// maximum VM protection
    maxprot: vm_prot_t = .{},

    /// initial VM protection
    initprot: vm_prot_t = .{},

    /// number of sections in segment
    nsects: u32 = 0,
    flags: u32 = 0,

    pub fn segName(seg: *const segment_command_64) []const u8 {
        return parseName(&seg.segname);
    }

    pub fn isWriteable(seg: segment_command_64) bool {
        return seg.initprot.write;
    }
}