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core: Remove embedded module support

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This has not worked for some time and is no longer actively maintained.

Change-Id: I5110b0db69c152761b58fa025cb0a53b0e544d99
This commit is contained in:
Sean Bright
2017-03-24 08:43:05 -04:00
committed by Corey Farrell
parent 3bdf876b04
commit cf6a6226ab
15 changed files with 33 additions and 390 deletions
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65
include/asterisk/module.h
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@@ -303,8 +303,6 @@ struct ast_module_info {
enum ast_module_load_result (*load)(void); /*!< register stuff etc. Optional. */
int (*reload)(void); /*!< config etc. Optional. */
int (*unload)(void); /*!< unload. called with the module locked */
int (*backup_globals)(void); /*!< for embedded modules, backup global data */
void (*restore_globals)(void); /*!< for embedded modules, restore global data */
const char *name; /*!< name of the module for loader reference and CLI commands */
const char *description; /*!< user friendly description of the module. */
@@ -379,8 +377,6 @@ void __ast_module_unref(struct ast_module *mod, const char *file, int line, cons
load_func, \
reload_func, \
unload_func, \
NULL, \
NULL, \
AST_MODULE, \
desc, \
keystr, \
@@ -440,70 +436,9 @@ void __ast_module_unref(struct ast_module *mod, const char *file, int line, cons
static const __attribute__((unused)) struct ast_module_info *ast_module_info;
#endif
#if !defined(EMBEDDED_MODULE)
#define __MODULE_INFO_SECTION
#define __MODULE_INFO_GLOBALS
#else
/*
* For embedded modules we need additional information to backup and
* restore the global variables in the module itself, so we can unload
* reload the module.
* EMBEDDED_MODULE is defined as the module name, so the calls to make_var()
* below will actually define different symbols for each module.
*/
#define __MODULE_INFO_SECTION __attribute__((section(".embed_module")))
#define __MODULE_INFO_GLOBALS .backup_globals = __backup_globals, .restore_globals = __restore_globals,
#define make_var_sub(mod, type) __ ## mod ## _ ## type
#define make_var(mod, type) make_var_sub(mod, type)
extern void make_var(EMBEDDED_MODULE, bss_start);
extern void make_var(EMBEDDED_MODULE, bss_end);
extern void make_var(EMBEDDED_MODULE, data_start);
extern void make_var(EMBEDDED_MODULE, data_end);
static void * __attribute__((section(".embed_module"))) __global_backup;
static int __backup_globals(void)
{
size_t data_size = & make_var(EMBEDDED_MODULE, data_end) - & make_var(EMBEDDED_MODULE, data_start);
if (__global_backup)
return 0;
if (!data_size)
return 0;
if (!(__global_backup = ast_malloc(data_size)))
return -1;
memcpy(__global_backup, & make_var(EMBEDDED_MODULE, data_start), data_size);
return 0;
}
static void __restore_globals(void)
{
size_t data_size = & make_var(EMBEDDED_MODULE, data_end) - & make_var(EMBEDDED_MODULE, data_start);
size_t bss_size = & make_var(EMBEDDED_MODULE, bss_end) - & make_var(EMBEDDED_MODULE, bss_start);
if (bss_size)
memset(& make_var(EMBEDDED_MODULE, bss_start), 0, bss_size);
if (!data_size || !__global_backup)
return;
memcpy(& make_var(EMBEDDED_MODULE, data_start), __global_backup, data_size);
}
#undef make_var
#undef make_var_sub
#endif /* EMBEDDED_MODULE */
#define AST_MODULE_INFO(keystr, flags_to_set, desc, fields...) \
static struct ast_module_info \
__MODULE_INFO_SECTION \
__mod_info = { \
__MODULE_INFO_GLOBALS \
.name = AST_MODULE, \
.flags = flags_to_set, \
.description = desc, \