2012-07-17 11:30:58 +00:00
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#define TLS_LE(x) \
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({ unsigned long __offset; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,1f\n" \
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"0:\t.quad " #x "@ntpoff\n" \
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"1:\tlg %0,0(%0)" \
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: "=a" (__offset) : : "cc" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#ifdef PIC
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# define TLS_IE(x) \
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S390: Save and restore r12 in TLS_IE macro.
The testcases elf/tst-tls1-static and elf/tst-tls2-static
are failing on s390 if gcc is configured with --enable-default-pie.
According to binutils, there are only four valid cases for IE -> LE transition:
lg %rx,(0,%ry) -> sllg %rx,%ry,0
lg %rx,(%ry,0) -> sllg %rx,%ry,0
lg %rx,(%ry,%r12) -> sllg %rx,%ry,0
lg %rx,(%r12,%ry) -> sllg %rx,%ry,0
Thus I've adjusted the TLS_IE macro in s390 tls-macros.h files in PIC case
in order to use r12 for the address of global offset table.
The adjusted macro definition is not used if gcc is not configured with
--enable-default-pie.
ChangeLog:
* sysdeps/s390/s390-32/tls-macros.h (TLS_IE): Use r12 for GOT address.
* sysdeps/s390/s390-64/tls-macros.h (TLS_IE): Likewise.
2017-06-27 13:23:43 +00:00
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({ unsigned long __offset, __save12; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,0f\n\t" \
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".quad " #x "@gotntpoff\n" \
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S390: Save and restore r12 in TLS_IE macro.
The testcases elf/tst-tls1-static and elf/tst-tls2-static
are failing on s390 if gcc is configured with --enable-default-pie.
According to binutils, there are only four valid cases for IE -> LE transition:
lg %rx,(0,%ry) -> sllg %rx,%ry,0
lg %rx,(%ry,0) -> sllg %rx,%ry,0
lg %rx,(%ry,%r12) -> sllg %rx,%ry,0
lg %rx,(%r12,%ry) -> sllg %rx,%ry,0
Thus I've adjusted the TLS_IE macro in s390 tls-macros.h files in PIC case
in order to use r12 for the address of global offset table.
The adjusted macro definition is not used if gcc is not configured with
--enable-default-pie.
ChangeLog:
* sysdeps/s390/s390-32/tls-macros.h (TLS_IE): Use r12 for GOT address.
* sysdeps/s390/s390-64/tls-macros.h (TLS_IE): Likewise.
2017-06-27 13:23:43 +00:00
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"0:\tlgr %1,%%r12\n\t" \
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"larl %%r12,_GLOBAL_OFFSET_TABLE_\n\t" \
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2015-11-20 07:56:40 +00:00
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"lg %0,0(%0)\n\t" \
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S390: Save and restore r12 in TLS_IE macro.
The testcases elf/tst-tls1-static and elf/tst-tls2-static
are failing on s390 if gcc is configured with --enable-default-pie.
According to binutils, there are only four valid cases for IE -> LE transition:
lg %rx,(0,%ry) -> sllg %rx,%ry,0
lg %rx,(%ry,0) -> sllg %rx,%ry,0
lg %rx,(%ry,%r12) -> sllg %rx,%ry,0
lg %rx,(%r12,%ry) -> sllg %rx,%ry,0
Thus I've adjusted the TLS_IE macro in s390 tls-macros.h files in PIC case
in order to use r12 for the address of global offset table.
The adjusted macro definition is not used if gcc is not configured with
--enable-default-pie.
ChangeLog:
* sysdeps/s390/s390-32/tls-macros.h (TLS_IE): Use r12 for GOT address.
* sysdeps/s390/s390-64/tls-macros.h (TLS_IE): Likewise.
2017-06-27 13:23:43 +00:00
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"lg %0,0(%0,%%r12):tls_load:" #x "\n\t" \
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"lgr %%r12,%1\n" \
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: "=&a" (__offset), "=&a" (__save12) : : "cc" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#else
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# define TLS_IE(x) \
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({ unsigned long __offset; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,1f\n" \
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"0:\t.quad " #x "@indntpoff\n" \
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"1:\t lg %0,0(%0)\n\t" \
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"lg %0,0(%0):tls_load:" #x \
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: "=&a" (__offset) : : "cc" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#endif
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#ifdef PIC
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# define TLS_LD(x) \
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({ unsigned long __offset, __save12; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,1f\n" \
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"0:\t.quad " #x "@tlsldm\n\t" \
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".quad " #x "@dtpoff\n" \
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"1:\tlgr %1,%%r12\n\t" \
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"larl %%r12,_GLOBAL_OFFSET_TABLE_\n\t" \
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"lg %%r2,0(%0)\n\t" \
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"brasl %%r14,__tls_get_offset@plt:tls_ldcall:" #x "\n\t" \
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"lg %0,8(%0)\n\t" \
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"algr %0,%%r2\n\t" \
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"lgr %%r12,%1" \
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: "=&a" (__offset), "=&a" (__save12) \
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: : "cc", "0", "1", "2", "3", "4", "5", "14" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#else
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# define TLS_LD(x) \
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({ unsigned long __offset; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,1f\n" \
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"0:\t.quad " #x "@tlsldm\n\t" \
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".quad " #x "@dtpoff\n" \
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"1:\tlarl %%r12,_GLOBAL_OFFSET_TABLE_\n\t" \
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"lg %%r2,0(%0)\n\t" \
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"brasl %%r14,__tls_get_offset@plt:tls_ldcall:" #x "\n\t" \
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"lg %0,8(%0)\n\t" \
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"algr %0,%%r2" \
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: "=&a" (__offset) \
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: : "cc", "0", "1", "2", "3", "4", "5", "12", "14" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#endif
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#ifdef PIC
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# define TLS_GD(x) \
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({ unsigned long __offset, __save12; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,1f\n" \
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"0:\t.quad " #x "@tlsgd\n" \
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"1:\tlgr %1,%%r12\n\t" \
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"larl %%r12,_GLOBAL_OFFSET_TABLE_\n\t" \
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"lg %%r2,0(%0)\n\t" \
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"brasl %%r14,__tls_get_offset@plt:tls_gdcall:" #x "\n\t" \
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"lgr %0,%%r2\n\t" \
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"lgr %%r12,%1" \
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: "=&a" (__offset), "=&a" (__save12) \
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: : "cc", "0", "1", "2", "3", "4", "5", "14" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#else
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# define TLS_GD(x) \
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({ unsigned long __offset; \
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2015-11-20 07:56:40 +00:00
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__asm__ ("bras %0,1f\n" \
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"0:\t.quad " #x "@tlsgd\n" \
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"1:\tlarl %%r12,_GLOBAL_OFFSET_TABLE_\n\t" \
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"lg %%r2,0(%0)\n\t" \
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"brasl %%r14,__tls_get_offset@plt:tls_gdcall:" #x "\n\t" \
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"lgr %0,%%r2" \
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: "=&a" (__offset) \
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: : "cc", "0", "1", "2", "3", "4", "5", "12", "14" ); \
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2012-07-17 11:30:58 +00:00
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(int *) (__builtin_thread_pointer() + __offset); })
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#endif
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