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// Mark stack as non-executable
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack, "", %progbits
#endif
/* See i386/morestack.S for the lengthy, general explanation. */
.text
.code 32
.arm
#if defined(__APPLE__)
.align 2
#else
.align
#endif
#if defined(__APPLE__)
#define MORESTACK ___morestack
#define STACK_EXHAUSTED _rust_stack_exhausted
#else
#define MORESTACK __morestack
#define STACK_EXHAUSTED rust_stack_exhausted
#endif
.global STACK_EXHAUSTED
.global MORESTACK
// Unfortunately LLVM yet doesn't support emitting correct debug
// DWARF information for non-ELF targets so to make it compile
// on iOS all that directives are simply commented out
#if defined(__APPLE__)
#define UNWIND @
#else
#define UNWIND
#endif
#if defined(__APPLE__)
.private_extern MORESTACK
#else
.hidden MORESTACK
#endif
#if !defined(__APPLE__)
.type MORESTACK,%function
#endif
// r4 and r5 are scratch registers for __morestack due to llvm
// ARMFrameLowering::adjustForSegmentedStacks() implementation.
MORESTACK:
UNWIND .fnstart
// Save frame pointer and return address
UNWIND .save {r4, r5}
UNWIND .save {lr}
UNWIND .save {r6, fp, lr}
push {r6, fp, lr}
UNWIND .movsp r6
mov r6, sp
UNWIND .setfp fp, sp, #4
add fp, sp, #4
// Save argument registers of the original function
push {r0, r1, r2, r3, lr}
// Create new stack
bl STACK_EXHAUSTED@plt
// the above function ensures that it never returns
UNWIND .fnend
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