mirror of
https://github.com/frida/tinycc
synced 2024-12-25 14:36:49 +03:00
48 lines
814 B
ArmAsm
48 lines
814 B
ArmAsm
/* ---------------------------------------------- */
|
|
/* alloca86-bt.S */
|
|
|
|
.globl __bound_alloca
|
|
|
|
__bound_alloca:
|
|
pop %edx
|
|
pop %eax
|
|
mov %eax, %ecx
|
|
add $3,%eax
|
|
and $-4,%eax
|
|
jz p6
|
|
|
|
#ifdef TCC_TARGET_PE
|
|
p4:
|
|
cmp $4096,%eax
|
|
jbe p5
|
|
test %eax,-4096(%esp)
|
|
sub $4096,%esp
|
|
sub $4096,%eax
|
|
jmp p4
|
|
|
|
p5:
|
|
#endif
|
|
|
|
sub %eax,%esp
|
|
mov %esp,%eax
|
|
|
|
push %edx
|
|
push %eax
|
|
push %ecx
|
|
push %eax
|
|
call __bound_new_region
|
|
add $8, %esp
|
|
pop %eax
|
|
pop %edx
|
|
|
|
p6:
|
|
push %edx
|
|
push %edx
|
|
ret
|
|
|
|
/* mark stack as nonexecutable */
|
|
#if defined __ELF__ && defined __linux__
|
|
.section .note.GNU-stack,"",@progbits
|
|
#endif
|
|
/* ---------------------------------------------- */
|