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/* This is a simple version of setjmp and longjmp.
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/* This is a simple version of setjmp and longjmp.
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Nick Clifton, Cygnus Solutions, 13 June 1997. */
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Nick Clifton, Cygnus Solutions, 13 June 1997. */
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/* ANSI concatenation macros. */
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#define CONCAT(a, b) CONCAT2(a, b)
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#define CONCAT2(a, b) a ## b
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#ifdef __USER_LABEL_PREFIX__
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#define FUNCTION( name ) CONCAT (__USER_LABEL_PREFIX__, name)
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#else
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#error __USER_LABEL_PREFIX__ is not defined
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#endif
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.text
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.text
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.code 32
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.code 32
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.align 2
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.align 2
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/* int setjmp (jmp_buf); */
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/* int setjmp (jmp_buf); */
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.globl _setjmp
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.globl FUNCTION(setjmp)
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_setjmp:
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FUNCTION(setjmp):
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/* Save all the callee-preserved registers into the jump buffer. */
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/* Save all the callee-preserved registers into the jump buffer. */
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stmea a1!, { v1-v7, fp, ip, sp, lr }
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stmea a1!, { v1-v7, fp, ip, sp, lr }
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#if 0 /* Simulator does not cope with FP instructions yet.... */
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#if 0 /* Simulator does not cope with FP instructions yet.... */
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.word 0xe12fff1e /* bx lr */
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.word 0xe12fff1e /* bx lr */
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#endif
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#endif
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/* volatile void longjmp (jmp_buf, int); */
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/* volatile void longjmp (jmp_buf, int); */
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.globl _longjmp
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.globl FUNCTION(longjmp)
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_longjmp:
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FUNCTION(longjmp):
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/* If we have stack extension code it ought to be handled here. */
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/* If we have stack extension code it ought to be handled here. */
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/* Restore the registers, retrieving the state when setjmp() was called. */
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/* Restore the registers, retrieving the state when setjmp() was called. */
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ldmfd a1!, { v1-v7, fp, ip, sp, lr }
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ldmfd a1!, { v1-v7, fp, ip, sp, lr }
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