75 lines
2.9 KiB
Diff
75 lines
2.9 KiB
Diff
From f78fc1f81a1082d05845367702a26cb853ead1cc Mon Sep 17 00:00:00 2001
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From: Christoph Reiter <reiter.christoph@gmail.com>
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Date: Sun, 27 Aug 2023 15:00:32 +0200
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Subject: [PATCH 101/N] Port GetPythonImport() to mingw
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This looks for DLL names in the import table but while with MSVC the DLL
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is named python311.dll in our case it is named libpython3.11.dll.
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Adjust the strings and lengths accordingly.
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---
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Python/dynload_win.c | 24 +++++++++++++++++-------
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1 file changed, 17 insertions(+), 7 deletions(-)
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diff --git a/Python/dynload_win.c b/Python/dynload_win.c
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index db79687..36d1c7a 100644
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--- a/Python/dynload_win.c
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+++ b/Python/dynload_win.c
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@@ -56,6 +56,16 @@ const char *_PyImport_DynLoadFiletab[] = {
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#define DWORD_AT(mem) (*(DWORD *)(mem))
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#define WORD_AT(mem) (*(WORD *)(mem))
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+#ifdef __MINGW32__
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+#define DLL_PREFIX "libpython"
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+#define DLL_PREFIX_LEN 9
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+#define DLL_NAME_FORMAT "libpython%d.%d"
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+#else
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+#define DLL_PREFIX "python"
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+#define DLL_PREFIX_LEN 6
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+#define DLL_NAME_FORMAT "python%d%d"
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+#endif
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+
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static char *GetPythonImport (HINSTANCE hModule)
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{
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unsigned char *dllbase, *import_data, *import_name;
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@@ -122,15 +132,15 @@ static char *GetPythonImport (HINSTANCE hModule)
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import_off);
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while (DWORD_AT(import_data)) {
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import_name = dllbase + DWORD_AT(import_data+12);
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- if (strlen(import_name) >= 6 &&
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- !strncmp(import_name,"python",6)) {
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+ if (strlen(import_name) >= DLL_PREFIX_LEN &&
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+ !strncmp(import_name, DLL_PREFIX, DLL_PREFIX_LEN)) {
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char *pch;
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/* Don't claim that python3.dll is a Python DLL. */
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#ifdef _DEBUG
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- if (strcmp(import_name, "python3_d.dll") == 0) {
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+ if (strcmp(import_name, DLL_PREFIX "3_d.dll") == 0) {
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#else
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- if (strcmp(import_name, "python3.dll") == 0) {
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+ if (strcmp(import_name, DLL_PREFIX "3.dll") == 0) {
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#endif
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import_data += 20;
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continue;
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@@ -138,7 +148,7 @@ static char *GetPythonImport (HINSTANCE hModule)
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/* Ensure python prefix is followed only
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by numbers to the end of the basename */
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- pch = import_name + 6;
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+ pch = import_name + DLL_PREFIX_LEN;
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#ifdef _DEBUG
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while (*pch && pch[0] != '_' && pch[1] != 'd' && pch[2] != '.') {
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#else
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@@ -329,9 +339,9 @@ dl_funcptr _PyImport_FindSharedFuncptrWindows(const char *prefix,
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PyOS_snprintf(buffer, sizeof(buffer),
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#ifdef _DEBUG
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- "python%d%d_d.dll",
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+ DLL_NAME_FORMAT "_d.dll",
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#else
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- "python%d%d.dll",
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+ DLL_NAME_FORMAT ".dll",
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#endif
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PY_MAJOR_VERSION,PY_MINOR_VERSION);
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import_python = GetPythonImport(hDLL);
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