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patch 9.1.0630: MS-Windows: build fails with VIMDLL and mzscheme

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Problem:  MS-Windows: build fails with VIMDLL and mzscheme
Solution: define scheme_register_tls_space() inside gvim.exe
          and refer to it from the dll (Ken Takata).

`scheme_register_tls_space()` doesn't support a thread-local variable in
a DLL:
https://docs.racket-lang.org/inside/im_memoryalloc.html#%28cpp._scheme_register_tls_space%29

closes: #15363

Signed-off-by: Ken Takata <kentkt@csc.jp>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Ken Takata
2024-07-27 13:25:34 +02:00
committed by Christian Brabandt
parent 4100852e09
commit f0ce176b5f
5 changed files with 62 additions and 9 deletions
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21
src/if_mzsch.c
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@@ -383,7 +383,7 @@ static void (*dll_scheme_set_config_path)(Scheme_Object *p);
# define scheme_null dll_scheme_null
# define scheme_true dll_scheme_true
// pointers are GetProceAddress'ed as pointers to pointer
// pointers are GetProcAddress'ed as pointers to pointer
#if !defined(USE_THREAD_LOCAL) && !defined(LINK_EXTENSIONS_BY_TABLE)
# define scheme_current_thread (*dll_scheme_current_thread_ptr)
# endif
@@ -924,7 +924,7 @@ mzscheme_end(void)
#endif
}
#if HAVE_TLS_SPACE
#if HAVE_TLS_SPACE && !defined(VIMDLL)
# if defined(_MSC_VER)
static __declspec(thread) void *tls_space;
extern intptr_t _tls_index;
@@ -960,7 +960,24 @@ mzscheme_main(void)
}
#endif
#ifdef HAVE_TLS_SPACE
# ifdef VIMDLL
void **ptls_space;
intptr_t tls_index;
void (*pget_tls_info)(void ***ptls_space, intptr_t *ptls_index);
// Get the address of get_tls_info() from (g)vim.exe.
pget_tls_info = (void *)GetProcAddress(
GetModuleHandle(NULL), "get_tls_info");
if (pget_tls_info == NULL)
{
disabled = TRUE;
return vim_main2();
}
pget_tls_info(&ptls_space, &tls_index);
scheme_register_tls_space(ptls_space, tls_index);
# else
scheme_register_tls_space(&tls_space, _tls_index);
# endif
#endif
#ifdef TRAMPOLINED_MZVIM_STARTUP
return scheme_main_setup(TRUE, mzscheme_env_main, argc, &argv);