13 Jul
2023
13 Jul
'23
6:23 a.m.
Hi, Thomas
On 2023-07-12 17:17:39+0800, Zhangjin Wu wrote:
[...]
+static void exit(int);
+void _start_c(long *sp) +{
- int argc, i;
- char **argv;
- char **envp;
- /* silence potential warning: conflicting types for 'main' */
- _nolibc_main_fn _nolibc_main __asm__ ("main");
What about the stackprotector initialization? It would really fit great into this series.
Ok, which gcc version supports stackprotector? seems the test even skip on gcc 10, I will find one to verify the code change.
Thomas, please ignore this question, I forgot some options in my own script.
Best regards, Zhangjin
- /*
* sp : argc <-- argument count, required by main()* argv: argv[0] <-- argument vector, required by main()* argv[1]* ...* argv[argc-1]* null* envp: envp[0] <-- environment variables, required by main() and getenv()* envp[1]* ...* null* _auxv: auxv[0] <-- auxiliary vector, required by getauxval()* auxv[1]* ...* null*/- /* assign argc and argv */
- argc = sp[0];
- argv = (void *)(sp + 1);
Bit of a weird mismatch between array syntax and pointer arithmetic.