mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-04 02:57:46 +00:00
Yannis Huber
43 lines
900 B
ArmAsm
43 lines
900 B
ArmAsm
#ifdef RV64
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#define REGSIZE 8
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#define SREG sd
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#define LREG ld
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#else
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#define REGSIZE 4
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#define SREG sw
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#define LREG lw
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#endif
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.section .text.tinygo_scanCurrentStack
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.global tinygo_scanCurrentStack
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.type tinygo_scanCurrentStack, %function
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tinygo_scanCurrentStack:
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// Push callee-saved registers onto the stack.
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addi sp, sp, -13*REGSIZE
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SREG ra, 0*REGSIZE(sp)
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SREG s11, 1*REGSIZE(sp)
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SREG s10, 2*REGSIZE(sp)
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SREG s9, 3*REGSIZE(sp)
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SREG s8, 4*REGSIZE(sp)
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SREG s7, 5*REGSIZE(sp)
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SREG s6, 6*REGSIZE(sp)
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SREG s5, 7*REGSIZE(sp)
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SREG s4, 8*REGSIZE(sp)
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SREG s3, 9*REGSIZE(sp)
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SREG s2, 10*REGSIZE(sp)
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SREG s1, 11*REGSIZE(sp)
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SREG s0, 12*REGSIZE(sp)
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// Scan the stack.
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mv a0, sp
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call tinygo_scanstack
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// Restore return address.
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LREG ra, 0(sp)
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// Restore stack state.
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addi sp, sp, 13*REGSIZE
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// Return to the caller.
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ret
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