diff options
Diffstat (limited to 'src/abi.h')
| -rw-r--r-- | src/abi.h | 43 |
1 files changed, 25 insertions, 18 deletions
@@ -1,5 +1,5 @@ /* - * Copyright © 2022 Michael Smith <mikesmiffy128@gmail.com> + * Copyright © 2023 Michael Smith <mikesmiffy128@gmail.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -20,8 +20,8 @@ #include "intdefs.h" /* - * This file defines miscellaneous C++ ABI stuff. Looking at it may cause - * brain damage and/or emotional trauma. + * This file defines miscellaneous C++ ABI stuff. Looking at it may cause brain + * damage and/or emotional trauma. */ #ifdef _WIN32 // Windows RTTI stuff, obviously only used on Windows. @@ -37,19 +37,20 @@ // should be a small lookup table is an absolute nutcase. I hope that individual // has gotten some help by now, mostly for the sake of others. -struct msvc_rtti_descriptor { - void *vtab; +struct msvc_rtti_descriptor_head { + void **vtab; void *unknown; // ??? - // XXX: pretty sure this is supposed to be flexible, but too lazy to write - // the stupid union init macros to make that fully portable - char classname[80]; + // descriptor includes this, but constant flexible arrays are annoying, so + // this structure is just the header part and the string is tacked on in the + // DEF_MSVC_BASIC_RTTI macro below + //char classname[]; }; // "pointer to member displacement" struct msvc_pmd { int mdisp, pdisp, vdisp; }; struct msvc_basedesc { - struct msvc_rtti_descriptor *desc; + const struct msvc_rtti_descriptor_head *desc; uint nbases; struct msvc_pmd where; uint attr; @@ -59,7 +60,7 @@ struct msvc_rtti_hierarchy { uint sig; uint attrs; uint nbaseclasses; - struct msvc_basedesc **baseclasses; + const struct msvc_basedesc **baseclasses; }; struct msvc_rtti_locator { @@ -67,20 +68,26 @@ struct msvc_rtti_locator { int baseoff; // ctor offset, or some flags; reactos and rust pelite say different things? int unknown; - struct msvc_rtti_descriptor *desc; - struct msvc_rtti_hierarchy *hier; + const struct msvc_rtti_descriptor_head *desc; + const struct msvc_rtti_hierarchy *hier; }; // I mean seriously look at this crap! #define DEF_MSVC_BASIC_RTTI(mod, name, vtab, typestr) \ -mod struct msvc_rtti_locator name; \ -static struct msvc_rtti_descriptor _desc_##name = {(vtab), 0, typestr}; \ -static struct msvc_basedesc _basedesc_##name = {&_desc_##name, 0, {0, 0, 0}, 0}; \ -mod struct msvc_rtti_locator name = { \ +const mod struct msvc_rtti_locator name; \ +static const struct { \ + struct msvc_rtti_descriptor_head d; \ + char classname[sizeof("" typestr)]; \ +} _desc_##name = {(vtab), 0, .classname = "" typestr}; \ +static const struct msvc_basedesc _basedesc_##name = { \ + &_desc_##name.d, 0, {0, 0, 0}, 0 \ +}; \ +mod const struct msvc_rtti_locator name = { \ 0, 0, 0, \ - &_desc_##name, \ + &_desc_##name.d, \ &(struct msvc_rtti_hierarchy){ \ - 0, 1 /* per engine */, 1, (struct msvc_basedesc *[]){&_basedesc_##name} \ + 0, 1 /* match engine */, 1, \ + (const struct msvc_basedesc *[]){&_basedesc_##name} \ } \ }; |