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#!/bin/sh |
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|
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# which_sparc |
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# |
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# This script generates a program that tests for a SPARC processor class |
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# Program returns: |
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# 0 unknown SPARC processor |
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# 8 SPARC V8 `compliant' processor (umul instruction is legal) |
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# 9 SPARC V9 `compliant' processor (popc instruction is legal) |
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# |
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# The script prints: |
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# "unknown SPARC architecture" |
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# SPARC_V8 |
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# SPARC_V9 |
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# |
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# I hope this works for other machines and OS. Tested machines are: |
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# Sun Ultra 10 (Solaris 7), SPARC Station 5 (Solaris 2.5.1) |
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# |
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# Gwenole Beauchesne |
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# gb@dial.oleane.com |
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|
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CC=gcc |
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PROG=./conftest |
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SOURCE=./conftest.c |
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|
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if [ ! -x $PROG ]; then |
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cat > $SOURCE << EOF |
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#include <stdio.h> |
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#include <signal.h> |
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|
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typedef unsigned int uint32; |
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typedef uint32 (*sparc_code_func)(void); |
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|
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#define SPARC_UNKNOWN 0 |
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#define SPARC_V8 8 |
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#define SPARC_V9 9 |
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|
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#define MAX_CODE_SIZE 16 |
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struct sparc_code_struct { |
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int version; |
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uint32 code[MAX_CODE_SIZE]; |
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struct sparc_code_struct * next; |
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}; |
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typedef struct sparc_code_struct sparc_code_struct; |
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|
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static sparc_code_struct *current_test_code; |
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|
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static sparc_code_struct unknown_sparc_code = |
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{ |
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SPARC_UNKNOWN, |
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{ |
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0x81C3E008, /* retl */ |
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0x01000000 /* nop */ |
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} |
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}; |
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|
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static sparc_code_struct sparc_v9_code = |
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{ |
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SPARC_V9, |
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{ |
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0x81C3E008, /* retl */ |
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0x81702007 /* popc 7, %g0 */ |
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} |
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}; |
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|
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static sparc_code_struct sparc_v8_code = |
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{ |
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SPARC_V8, |
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{ |
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0x90102002, /* mov 2, %o0 */ |
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0x81C3E008, /* retl */ |
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0x90520008 /* umul %o0, %o0, %o0 */ |
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} |
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}; |
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|
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static void test_sparc_code(int unused_int) |
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{ |
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sparc_code_struct *tested_code = current_test_code; |
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|
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if (current_test_code == NULL) |
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exit(SPARC_UNKNOWN); |
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|
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signal(SIGILL, test_sparc_code); |
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current_test_code = current_test_code->next; |
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(void) ((sparc_code_func)(tested_code->code))(); |
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exit(tested_code->version); |
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} |
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|
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int main(void) |
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{ |
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sparc_v9_code.next = &sparc_v8_code; |
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sparc_v8_code.next = &unknown_sparc_code; |
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unknown_sparc_code.next = NULL; |
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|
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signal(SIGILL, test_sparc_code); |
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current_test_code = &sparc_v9_code; |
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raise(SIGILL); |
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|
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return 0; |
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} |
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EOF |
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|
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$CC -o $PROG $SOURCE |
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if [ $? -ne 0 ]; then |
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echo "Error: could not compile the test program" |
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exit 1 |
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fi |
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|
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fi |
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|
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$PROG |
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case $? in |
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0) echo "unknown SPARC architecture";; |
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8) echo "SPARC_V8";; |
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9) echo "SPARC_V9";; |
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esac |
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|
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rm -f $PROG |
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rm -f $SOURCE |
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|
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exit 0 |
