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/*
* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/exec.h>
#include <stdint.h>
#include <stddef.h>
extern int __libc_stdio_init(void);
extern int __malloc_mem_init(void);
uint64_t __libc_auxv[_AT_MAX];
int main(int argc, char **argv);
struct auxv_entry {
uint64_t tag;
uint64_t val;
};
int
__libc_entry(uint64_t *ctx)
{
const struct auxv_entry *auxvp;
int status;
uint64_t argc, envc, tag;
char **argv;
char **envp;
argc = *ctx;
argv = (char **)(ctx + 1);
envp = (char **)(argv + argc + 1);
envc = 0;
while (envp[envc] != NULL) {
++envc;
}
auxvp = (void *)(envp + envc + 1);
for (int i = 0; i < _AT_MAX; ++i) {
if (auxvp->tag == AT_NULL) {
break;
}
if (auxvp->tag < _AT_MAX) {
__libc_auxv[auxvp->tag] = auxvp->val;
}
++auxvp;
}
if ((status = __libc_stdio_init()) != 0) {
return status;
}
__malloc_mem_init();
return main(argc, argv);
}
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