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Module `dmd.backend.machobj`

Generate Mach-O object files

Compiler implementation of the D programming language.

Functions

Name	Description
`dwarf_eh_frame_fixup(dfseg, offset, s, val, fdesym)`	Generate LSDA and PC_Begin fixups in the _eh_frame segment encoded as DW_EH_PE_pcrel\|ptr. 64 bits LSDA [0] address x0071 symbolnum 6 pcrel 0 length 3 extern 1 type 5 RELOC_SUBTRACTOR _Z3foov.eh [1] address x0071 symbolnum 1 pcrel 0 length 3 extern 1 type 0 RELOC_UNSIGNED GCC_except_table2
`getsegment2(seg, sectname, segname, align_, flags)`	Memoize seg index.
`mach_dwarf_reftoident(seg, offset, s, val)`	Generate fixup specific to .eh_frame and .gcc_except_table sections.
`mach_numbersyms()`	Number symbols so they are ordered as locals, public and then extern/comdef
`mach_seg_data_isCode(sd)`	Returns !=0 if this segment is a code segment.
`MachObj_addrel(seg, offset, targsym, targseg, rtype, val)`	Add a relocation entry for seg/offset.
`MachObj_addstr(strtab, str)`	Output a string into a string table
`MachObj_alias(n1, n2)`	Output an alias definition record.
`MachObj_allowZeroSize()`	Do we allow zero sized objects?
`MachObj_byte(seg, offset, byte_)`	Output byte to object file.
`MachObj_bytes(seg, offset, nbytes, p)`	Output bytes to object file.
`MachObj_codeseg(name, suffix)`	Define a new code segment.
`MachObj_comdatsize(s, symsize)`	Setup for Symbol s to go into a COMDAT segment. Output (if s is a function): cseg segment index of new current code segment Offset(cseg) starting offset in cseg
`MachObj_common_block(s, size, count)`	Output a common block definition.
`MachObj_compiler(p)`	Embed compiler version in .obj file.
`MachObj_data_readonly(p, len, pseg)`	Ouput read only data for data
`MachObj_data_start(sdata, datasize, seg)`	Update data information about symbol align for output and assign segment if not already specified.
`MachObj_ehsections()`	Put out symbols that define the beginning/end of the .deh_eh section. This gets called if this is the module with "main()" in it.
`MachObj_ehtables(sfunc, size, ehsym)`	Stuff the following data (instance of struct FuncTable) in a separate segment: pointer to function pointer to ehsym length of function
`MachObj_exestr(p)`	Embed string in executable.
`MachObj_export_symbol(s, argsize)`	Export a function name.
`MachObj_external(s)`	Output an external for existing symbol.
`MachObj_external_def(name)`	Output an external symbol for name.
`MachObj_far16thunk(s)`	Generate far16 thunk.
`MachObj_filename(modname)`	Output file name record.
`MachObj_fltused()`	Mark object file as using floating point.
`MachObj_func_start(sfunc)`	Update function info before codgen
`MachObj_func_term(sfunc)`	Update function info after codgen
`MachObj_getGOTsym()`
`MachObj_getsegment(sectname, segname, align_, flags)`	Get segment.
`MachObj_gotref(s)`
`MachObj_includelib(name)`	Output library name.
`MachObj_init(objbuf, filename, csegname)`	Perform initialization that applies to all .o output files. Called before any other obj_xxx routines
`MachObj_initfile(filename, csegname, modname)`	Initialize the start of object output for this particular .o file.
`MachObj_jmpTableSegment(s)`
`MachObj_lidata(seg, offset, count)`	Output an iterated data block of 0s.
`MachObj_linkerdirective(name)`	Output linker directive.
`MachObj_linnum(srcpos, seg, offset)`	Line number support.
`MachObj_moduleinfo(scc)`	Stuff pointer to ModuleInfo in its own segment.
`MachObj_pubdefsize(seg, s, offset, symsize)`	Output a public definition.
`MachObj_reftocodeseg(seg, offset, val)`	Refer to address that is in the current function code (funcsym_p). Only offsets are output, regardless of the memory model. Used to put values in switch address tables.
`MachObj_reftodatseg(seg, offset, val, targetdatum, flags)`	Refer to address that is in the data segment.
`MachObj_reftoident(seg, offset, s, val, flags)`	Refer to an identifier.
`MachObj_setcodeseg(seg)`	Reset code seg to existing seg. Used after a COMDAT for a function is done.
`MachObj_setModuleCtorDtor(sfunc, isCtor)`	Stuff pointer to function in its own segment. Used for static ctor and dtor lists.
`MachObj_startaddress(s)`	Set start address
`MachObj_staticctor(s, __param_1, __param_2)`	Symbol is the function that calls the static constructors. Put a pointer to it into a special segment that the startup code looks at.
`MachObj_staticdtor(s)`	Symbol is the function that calls the static destructors. Put a pointer to it into a special segment that the exit code looks at.
`MachObj_string_literal_segment(sz)`	Get segment for readonly string literals. The linker will pool strings in this section.
`MachObj_sym_cdata(ty, p, len)`	Ouput read only data and generate a symbol for it.
`MachObj_term(objfilename)`	Terminate package.
`MachObj_termfile()`	Fixup and terminate object file.
`MachObj_tlsseg()`	Define segments for Thread Local Storage for 32bit.
`MachObj_tlsseg_bss()`	Define segments for Thread Local Storage.
`MachObj_tlsseg_data()`	Define segments for Thread Local Storage data.
`MachObj_tlv_bootstrap()`	Returns the symbol for the _tlv_bootstrap function.
`MachObj_user(p)`	Embed string in obj.
`MachObj_wkext(s1, s2)`	Output a weak extern record.
`MachObj_write_byte(pseg, byte_)`	Append byte to segment.
`MachObj_write_bytes(pseg, a)`	Append bytes to segment.
`MachObj_write_zeros(pseg, count)`	Append an iterated data block of 0s. (uninitialized data only)
`machobjfile_delete()`	Close and delete .OBJ file.
`machobjfile_term()`	Terminate.
`patchAddr(seg, offset)`	Patch pseg/offset by adding in the vmaddr difference from pseg/offset to start of seg.

Global variables

Name	Type	Description
`seg_tlsseg_data`	`int`	Section index for the _thread_data section.

Authors

Walter Bright

License

Boost License 1.0