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arch/sim/src/sim/up_macho_init.c: Fix an assertion

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Handle the case of no constructors.
This commit is contained in:
YAMAMOTO Takashi 2022-01-21 17:32:28 +09:00 committed by Petro Karashchenko
parent 1dccc374ab
commit f356ff34a7
1 changed files with 15 additions and 4 deletions
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19
arch/sim/src/sim/up_macho_init.c
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@ -75,14 +75,25 @@ static void save_and_replace_init_funcs(int argc, const char *argv[],
const char *envp[],
const char *apple[])
{
init_func_t *fp;
unsigned int nfuncs = &mod_init_func_end - &mod_init_func_start;
assert(nfuncs > 0);
g_num_saved_init_funcs = nfuncs - 1;
if (g_num_saved_init_funcs == 0)
{
/* This function is the only constructor in the binary.
* no need to apply the following hack.
*/
return;
}
g_saved_argc = argc;
g_saved_argv = argv;
g_saved_envp = envp;
g_saved_apple = apple;
init_func_t *fp;
unsigned int nfuncs = &mod_init_func_end - &mod_init_func_start;
assert(nfuncs > 1);
g_num_saved_init_funcs = nfuncs - 1;
g_saved_init_funcs = malloc(g_num_saved_init_funcs *
sizeof(*g_saved_init_funcs));
allow_write(&mod_init_func_start, &mod_init_func_end);