From d6d3af5b02b28030fa08cb4e82f795ad5325b5b0 Mon Sep 17 00:00:00 2001
From: jeefo <jeefo@rwsh.ru>
Date: Sat, 25 Mar 2023 15:59:11 +0300
Subject: [PATCH] fix: mingw-w64 compile on windows

added ldscript from metamod-p, so mingw-compiled binaries will load by vanilla hl engine (without metamod) without crashes
---
 i386pe.lds   | 205 +++++++++++++++++++++++++++++++++++++++++++++++++++
 inc/engine.h |   2 +-
 meson.build  |   2 +
 3 files changed, 208 insertions(+), 1 deletion(-)
 create mode 100644 i386pe.lds

diff --git a/i386pe.lds b/i386pe.lds
new file mode 100644
index 0000000..19ceced
--- /dev/null
+++ b/i386pe.lds
@@ -0,0 +1,205 @@
+/* Special ld script needed, because HL engine does some PE section checking on loaded gamedlls. */
+/* These checks fail and segfault HL process if default ld script is used! */
+OUTPUT_FORMAT(pei-i386)
+SEARCH_DIR("/mingw/mingw32/lib"); SEARCH_DIR("/mingw/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
+ENTRY(_mainCRTStartup)
+SECTIONS
+{
+  .text  __image_base__ + __section_alignment__  :
+  {
+    *(.init)
+    *(.text)
+    *(SORT(.text$*))
+    *(.glue_7t)
+    *(.glue_7)
+   	___CTOR_LIST__ = .; __CTOR_LIST__ = . ;
+			LONG (-1);
+			*(EXCLUDE_FILE (*crtend.o) .ctors);
+			*(.ctor);
+			*(SORT(.ctors.*));
+			*crtend.o (.ctors);
+			LONG (0);
+    	___DTOR_LIST__ = .; __DTOR_LIST__ = . ;
+			LONG (-1);
+			*(EXCLUDE_FILE (*crtend.o) .dtors);
+			*(.dtor);
+			*(SORT(.dtors.*));
+			*crtend.o (.dtors);
+			LONG (0);
+     *(.fini)
+    /* ??? Why is .gcc_exc here?  */
+     *(.gcc_exc)
+    PROVIDE (etext = .);
+    *(.gcc_except_table)
+  /*}
+  .rdata BLOCK(__section_alignment__) :
+  {*/
+    *(.rdata)
+    *(SORT(.rdata$*))
+  }
+  /* The Cygwin32 library uses a section to avoid copying certain data
+     on fork.  This used to be named ".data".  The linker used
+     to include this between __data_start__ and __data_end__, but that
+     breaks building the cygwin32 dll.  Instead, we name the section
+     ".data_cygwin_nocopy" and explictly include it after __data_end__. */
+  .data BLOCK(__section_alignment__) :
+  {
+    __data_start__ = . ;
+    *(.data)
+    *(.data2)
+    *(SORT(.data$*))
+    __data_end__ = . ;
+    *(.data_cygwin_nocopy)
+    *(.eh_frame)
+    ___RUNTIME_PSEUDO_RELOC_LIST__ = .;
+    __RUNTIME_PSEUDO_RELOC_LIST__ = .;
+    *(.rdata_runtime_pseudo_reloc)
+    ___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;
+    __RUNTIME_PSEUDO_RELOC_LIST_END__ = .;
+  /*}
+  .bss BLOCK(__section_alignment__) :
+  {*/
+    __bss_start__ = . ;
+    *(.bss)
+    *(COMMON)
+    __bss_end__ = . ;
+  }
+  .edata BLOCK(__section_alignment__) :
+  {
+    *(.edata)
+  }
+  .idata BLOCK(__section_alignment__) :
+  {
+    /* This cannot currently be handled with grouped sections.
+	See pe.em:sort_sections.  */
+    SORT(*)(.idata$2)
+    SORT(*)(.idata$3)
+    /* These zeroes mark the end of the import list.  */
+    LONG (0); LONG (0); LONG (0); LONG (0); LONG (0);
+    SORT(*)(.idata$4)
+    SORT(*)(.idata$5)
+    SORT(*)(.idata$6)
+    SORT(*)(.idata$7)
+  }
+  /DISCARD/ :
+  {
+    *(.debug$S)
+    *(.debug$T)
+    *(.debug$F)
+    *(.drectve)
+  }
+  .CRT BLOCK(__section_alignment__) :
+  {
+    ___crt_xc_start__ = . ;
+    *(SORT(.CRT$XC*))  /* C initialization */
+    ___crt_xc_end__ = . ;
+    ___crt_xi_start__ = . ;
+    *(SORT(.CRT$XI*))  /* C++ initialization */
+    ___crt_xi_end__ = . ;
+    ___crt_xl_start__ = . ;
+    *(SORT(.CRT$XL*))  /* TLS callbacks */
+    /* ___crt_xl_end__ is defined in the TLS Directory support code */
+    ___crt_xp_start__ = . ;
+    *(SORT(.CRT$XP*))  /* Pre-termination */
+    ___crt_xp_end__ = . ;
+    ___crt_xt_start__ = . ;
+    *(SORT(.CRT$XT*))  /* Termination */
+    ___crt_xt_end__ = . ;
+  }
+  .tls BLOCK(__section_alignment__) :
+  {
+    ___tls_start__ = . ;
+    *(.tls)
+    *(.tls$)
+    *(SORT(.tls$*))
+    ___tls_end__ = . ;
+  }
+  .endjunk BLOCK(__section_alignment__) :
+  {
+    /* end is deprecated, don't use it */
+    PROVIDE (end = .);
+    PROVIDE ( _end = .);
+     __end__ = .;
+  }
+  .rsrc BLOCK(__section_alignment__) :
+  {
+    *(.rsrc)
+    *(SORT(.rsrc$*))
+  }
+  .reloc BLOCK(__section_alignment__) :
+  {
+    *(.reloc)
+  }
+  .stab BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.stab)
+  }
+  .stabstr BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.stabstr)
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section.  Unlike other targets that fake this by putting the
+     section VMA at 0, the PE format will not allow it.  */
+  /* DWARF 1.1 and DWARF 2.  */
+  .debug_aranges BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_aranges)
+  }
+  .debug_pubnames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_pubnames)
+  }
+  /* DWARF 2.  */
+  .debug_info BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_info) *(.gnu.linkonce.wi.*)
+  }
+  .debug_abbrev BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_abbrev)
+  }
+  .debug_line BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_line)
+  }
+  .debug_frame BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_frame)
+  }
+  .debug_str BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_str)
+  }
+  .debug_loc BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_loc)
+  }
+  .debug_macinfo BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_macinfo)
+  }
+  /* SGI/MIPS DWARF 2 extensions.  */
+  .debug_weaknames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_weaknames)
+  }
+  .debug_funcnames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_funcnames)
+  }
+  .debug_typenames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_typenames)
+  }
+  .debug_varnames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_varnames)
+  }
+  /* DWARF 3.  */
+  .debug_ranges BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_ranges)
+  }
+}
diff --git a/inc/engine.h b/inc/engine.h
index 75b8282..9f63681 100644
--- a/inc/engine.h
+++ b/inc/engine.h
@@ -640,7 +640,7 @@ private:
 #if defined (CR_WINDOWS)
 #  define DLSYM_FUNCTION GetProcAddress
 #  define DLCLOSE_FUNCTION FreeLibrary
-#  define DLSYM_RETURN FARPROC
+#  define DLSYM_RETURN PVOID
 #  define DLSYM_HANDLE HMODULE
 #else
 #  define DLSYM_FUNCTION dlsym
diff --git a/meson.build b/meson.build
index ec73ff4..cfb516a 100644
--- a/meson.build
+++ b/meson.build
@@ -219,6 +219,8 @@ elif win32 and (clang or gcc)
    if clang
       ldflags += '-Wl,/MACHINE:X86'
       ccflags += '-Wl,/MACHINE:X86'
+   else
+      ldflags += ['-Xlinker', '--script', '-Xlinker', '../i386pe.lds']
    endif
 endif