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59c11074cf

Daniel Stenberg

2026-03-27

SUCCESS Duration: 279s

Subject

src: add curl_global_init_mem testing

Binary

No binary (build failed)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

Build Log

(log yok)

Commit Diff GitHub →

CMakeLists.txt +6 -0 configure.ac +17 -0 src/tool_cfgable.c +91 -0

CMakeLists.txt+6 -0

@@ -510,7 +510,13 @@ option(CURL_DISABLE_TYPECHECK "Disable curl_easy_setopt()/curl_easy_getinfo() ty
	mark_as_advanced(CURL_DISABLE_TYPECHECK)
	option(CURL_DISABLE_VERBOSE_STRINGS "Disable verbose strings" OFF)
	mark_as_advanced(CURL_DISABLE_VERBOSE_STRINGS)
+	option(CURL_DEBUG_GLOBAL_MEM "Debug curl_global_init_mem" OFF)
+	mark_as_advanced(CURL_DEBUG_GLOBAL_MEM)

+	if(CURL_DEBUG_GLOBAL_MEM)
+	# Set it via the command-line to make it apply to the entire directory.
+	set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "CURL_DEBUG_GLOBAL_MEM")
+	endif()
	if(CURL_DISABLE_TYPECHECK)
	# Set it via the command-line to make it apply to examples also.
	set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "CURL_DISABLE_TYPECHECK")

configure.ac+17 -0

@@ -1087,6 +1087,23 @@ AS_HELP_STRING([--disable-mqtt],[Disable MQTT support]),
	AC_MSG_RESULT(no)
	)

+	AC_MSG_CHECKING([enable curl_global_init_mem debug build])
+	AC_ARG_ENABLE(init-mem-debug,
+	AS_HELP_STRING([--enable-init-mem-debug],[curl_global_init_mem debug])
+	AS_HELP_STRING([--disable-init-mem-debug],[]),
+	[ case "$enableval" in
+	yes)
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(CURL_DEBUG_GLOBAL_MEM, 1, [curl_debug_global_mem debug build])
+	SUPPORT_FEATURES="$SUPPORT_FEATURES global-mem-debug"
+	;;
+	*)
+	AC_MSG_RESULT(no)
+	;;
+	esac ],
+	AC_MSG_RESULT(no)
+	)
+
	dnl **********************************************************************
	dnl Check for built-in manual
	dnl **********************************************************************

src/tool_cfgable.c+91 -0

@@ -21,6 +21,7 @@
	* SPDX-License-Identifier: curl
	*
	***************************************************************************/
+	#include <stddef.h>
	#include "tool_setup.h"

	#include "tool_cfgable.h"
@@ -206,6 +207,90 @@ void config_free(struct OperationConfig *config)
	}
	}

+	#ifdef CURL_DEBUG_GLOBAL_MEM
+
+	#ifdef CURL_MEMDEBUG
+	#error "curl_global_init_mem() testing does not work with memdebug debugging"
+	#endif
+
+	/*
+	* This is the custom memory functions handed to curl when we run special test
+	* round to verify them.
+	*
+	* The main point is to make sure that what is returned is different than what
+	* the regular memory functions return so that mixup will trigger problems.
+	*/
+
+	struct extramem {
+	size_t extra;
+	union {
+	curl_off_t o;
+	double d;
+	void *p;
+	} mem[1];
+	};
+
+	static void *custom_calloc(size_t wanted_nmemb, size_t wanted_size)
+	{
+	struct extramem *m;
+	size_t sz = wanted_size * wanted_nmemb;
+	sz += sizeof(struct extramem);
+	m = curlx_calloc(1, sz);
+	if(m)
+	return m->mem;
+	return NULL;
+	}
+
+	static void *custom_malloc(size_t wanted_size)
+	{
+	struct extramem *m;
+	size_t sz = wanted_size + sizeof(struct extramem);
+	m = curlx_malloc(sz);
+	if(m)
+	return m->mem;
+	return NULL;
+	}
+
+	static char custom_strdup(const char ptr)
+	{
+	struct extramem *m;
+	size_t size = strlen(ptr) + 1;
+	size_t sz = size + sizeof(struct extramem);
+	m = curlx_malloc(sz);
+	if(m) {
+	char p = (char )m->mem;
+	/* since strcpy is banned, we do memcpy */
+	memcpy(p, ptr, sz);
+	p[sz] = 0;
+	return (char *)m->mem;
+	}
+	return NULL;
+
+	}
+
+	static void custom_realloc(void ptr, size_t size)
+	{
+	struct extramem *m = NULL;
+	size_t sz = size + sizeof(struct extramem);
+	if(ptr)
+	m = (void )((char )ptr - offsetof(struct extramem, mem));
+	m = curlx_realloc(ptr, sz);
+	if(m)
+	return m->mem;
+	return NULL;
+	}
+
+	static void custom_free(void *ptr)
+	{
+	struct extramem *m = NULL;
+	if(ptr) {
+	m = (void )((char )ptr - offsetof(struct extramem, mem));
+	curlx_free(m);
+	}
+	}
+
+	#endif
+
	/*
	* This is the main global constructor for the app. Call this before
	* _any_ libcurl usage. If this fails, NO libcurl functions may be
@@ -230,7 +315,13 @@ CURLcode globalconf_init(void)
	global->first = global->last = config_alloc();
	if(global->first) {
	/* Perform the libcurl initialization */
+	#ifdef GLOBAL_MEM
+	result = curl_global_init_mem(CURL_GLOBAL_ALL, custom_malloc, custom_free,
+	custom_realloc, custom_strdup,
+	custom_calloc);
+	#else
	result = curl_global_init(CURL_GLOBAL_DEFAULT);
+	#endif
	if(!result) {
	/* Get information about libcurl */
	result = get_libcurl_info();