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52 lines
1.0 KiB
ArmAsm
52 lines
1.0 KiB
ArmAsm
/* ---------------------------------------------- */
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/* alloca86_64.S */
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#ifdef __APPLE__
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#define __bound_alloca ___bound_alloca
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#define __bound_alloca_nr ___bound_alloca_nr
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#endif
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.globl __bound_alloca
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__bound_alloca:
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#ifdef _WIN32
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inc %rcx # add one extra to separate regions
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jmp alloca
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.globl __bound_alloca_nr
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__bound_alloca_nr:
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dec %rcx
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push %rax
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mov %rcx,%rdx
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mov %rax,%rcx
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sub $32,%rsp
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call __bound_new_region
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add $32,%rsp
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pop %rax
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ret
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#else
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pop %rdx
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mov %rdi,%rax
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mov %rax,%rsi # size, a second parm to the __bound_new_region
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add $15 + 1,%rax # add one extra to separate regions
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and $-16,%rax
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jz p3
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sub %rax,%rsp
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mov %rsp,%rdi # pointer, a first parm to the __bound_new_region
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mov %rsp,%rax
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push %rdx
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push %rax
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call __bound_new_region
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pop %rax
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pop %rdx
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p3:
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push %rdx
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ret
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#endif
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/* ---------------------------------------------- */
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