| 1 | /* shared library to test for __tls_get_addr optimization. */ |
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| 2 | #include <stdio.h> |
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| 3 | |
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| 4 | #include "dl-tls.h" |
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| 5 | |
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| 6 | __thread int foo __attribute__ ((tls_model("global-dynamic" ))); |
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| 7 | |
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| 8 | |
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| 9 | int |
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| 10 | tls_get_addr_opt_test (void) |
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| 11 | { |
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| 12 | int result = 0; |
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| 13 | |
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| 14 | /* Get variable using general dynamic model. */ |
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| 15 | int *ap = &foo; |
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| 16 | if (*ap != 0) |
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| 17 | { |
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| 18 | printf (format: "foo = %d\n" , *ap); |
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| 19 | result = 1; |
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| 20 | } |
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| 21 | |
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| 22 | tls_index *tls_arg; |
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| 23 | #ifdef __powerpc64__ |
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| 24 | register unsigned long thread_pointer __asm__ ("r13" ); |
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| 25 | # ifdef __PCREL__ |
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| 26 | asm ("paddi %0,0,foo@got@tlsgd@pcrel,1" : "=b" (tls_arg)); |
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| 27 | # else |
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| 28 | asm ("addi %0,2,foo@got@tlsgd" : "=b" (tls_arg)); |
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| 29 | # endif |
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| 30 | #else |
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| 31 | register unsigned long thread_pointer __asm__ ("r2" ); |
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| 32 | asm ("bcl 20,31,1f\n1:\t" |
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| 33 | "mflr %0\n\t" |
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| 34 | "addis %0,%0,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" |
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| 35 | "addi %0,%0,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" |
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| 36 | "addi %0,%0,foo@got@tlsgd" : "=b" (tls_arg)); |
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| 37 | #endif |
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| 38 | |
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| 39 | if (tls_arg->ti_module != 0) |
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| 40 | { |
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| 41 | printf (format: "tls_index not optimized, binutils too old?\n" ); |
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| 42 | result = 1; |
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| 43 | } |
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| 44 | else if (tls_arg->ti_offset + thread_pointer != (unsigned long) ap) |
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| 45 | { |
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| 46 | printf (format: "tls_index->ti_offset wrong value\n" ); |
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| 47 | result = 1; |
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| 48 | } |
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| 49 | |
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| 50 | return result; |
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| 51 | } |
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| 52 | |
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