304 lines
9.8 KiB
C
304 lines
9.8 KiB
C
/* Macros to support TLS testing in times of missing compiler support. */
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#define COMMON_INT_DEF(x) \
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asm (".tls_common " #x ",4,4")
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/* XXX Until we get compiler support we don't need declarations. */
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#define COMMON_INT_DECL(x)
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/* XXX This definition will probably be machine specific, too. */
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#define VAR_INT_DEF(x) \
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asm (".section .tdata\n\t" \
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".globl " #x "\n" \
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#x ":\t.long 0\n\t" \
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".size " #x ",4\n\t" \
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".previous")
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/* XXX Until we get compiler support we don't need declarations. */
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#define VAR_INT_DECL(x)
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/* XXX Each architecture must have its own asm for now. */
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#ifdef __i386__
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# define TLS_LE(x) \
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({ int *__l; \
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asm ("movl %%gs:0,%0\n\t" \
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"subl $" #x "@tpoff,%0" \
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: "=r" (__l)); \
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__l; })
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# ifdef PIC
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# define TLS_IE(x) \
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({ int *__l; \
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asm ("movl %%gs:0,%0\n\t" \
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"subl " #x "@gottpoff(%%ebx),%0" \
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: "=r" (__l)); \
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__l; })
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# else
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# define TLS_IE(x) \
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({ int *__l, __b; \
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asm ("call 1f\n\t" \
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".subsection 1\n" \
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"1:\tmovl (%%esp), %%ebx\n\t" \
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"ret\n\t" \
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".previous\n\t" \
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"addl $_GLOBAL_OFFSET_TABLE_, %%ebx\n\t" \
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"movl %%gs:0,%0\n\t" \
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"subl " #x "@gottpoff(%%ebx),%0" \
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: "=r" (__l), "=&b" (__b)); \
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__l; })
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# endif
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# ifdef PIC
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# define TLS_LD(x) \
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({ int *__l, __c, __d; \
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asm ("leal " #x "@tlsldm(%%ebx),%%eax\n\t" \
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"call ___tls_get_addr@plt\n\t" \
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"leal " #x "@dtpoff(%%eax), %%eax" \
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: "=a" (__l), "=&c" (__c), "=&d" (__d)); \
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__l; })
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# else
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# define TLS_LD(x) \
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({ int *__l, __b, __c, __d; \
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asm ("call 1f\n\t" \
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".subsection 1\n" \
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"1:\tmovl (%%esp), %%ebx\n\t" \
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"ret\n\t" \
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".previous\n\t" \
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"addl $_GLOBAL_OFFSET_TABLE_, %%ebx\n\t" \
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"leal " #x "@tlsldm(%%ebx),%%eax\n\t" \
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"call ___tls_get_addr@plt\n\t" \
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"leal " #x "@dtpoff(%%eax), %%eax" \
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: "=a" (__l), "=&b" (__b), "=&c" (__c), "=&d" (__d)); \
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__l; })
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# endif
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# ifdef PIC
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# define TLS_GD(x) \
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({ int *__l, __c, __d; \
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asm ("leal " #x "@tlsgd(%%ebx),%%eax\n\t" \
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"call ___tls_get_addr@plt\n\t" \
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"nop" \
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: "=a" (__l), "=&c" (__c), "=&d" (__d)); \
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__l; })
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# else
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# define TLS_GD(x) \
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({ int *__l, __b, __c, __d; \
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asm ("call 1f\n\t" \
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".subsection 1\n" \
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"1:\tmovl (%%esp), %%ebx\n\t" \
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"ret\n\t" \
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".previous\n\t" \
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"addl $_GLOBAL_OFFSET_TABLE_, %%ebx\n\t" \
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"leal " #x "@tlsgd(%%ebx),%%eax\n\t" \
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"call ___tls_get_addr@plt\n\t" \
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"nop" \
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: "=a" (__l), "=&b" (__b), "=&c" (__c), "=&d" (__d)); \
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__l; })
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# endif
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#elif defined __x86_64__
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# define TLS_LE(x) \
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({ int *__l; \
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asm ("movq %%fs:0,%0\n\t" \
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"leaq " #x "@tpoff(%0), %0" \
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: "=r" (__l)); \
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__l; })
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# define TLS_IE(x) \
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({ int *__l; \
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asm ("movq %%fs:0,%0\n\t" \
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"addq " #x "@gottpoff(%%rip),%0" \
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: "=r" (__l)); \
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__l; })
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# define TLS_LD(x) \
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({ int *__l, __c, __d; \
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asm ("leaq " #x "@tlsld(%%rip),%%rdi\n\t" \
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"call __tls_get_addr@plt\n\t" \
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"leaq " #x "@dtpoff(%%rax), %%rax" \
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: "=a" (__l), "=&c" (__c), "=&d" (__d) \
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: : "rdi", "rsi", "r8", "r9", "r10", "r11"); \
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__l; })
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# define TLS_GD(x) \
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({ int *__l, __c, __d; \
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asm (".byte 0x66\n\t" \
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"leaq " #x "@tlsgd(%%rip),%%rdi\n\t" \
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".word 0x6666\n\t" \
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"rex64\n\t" \
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"call __tls_get_addr@plt" \
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: "=a" (__l), "=&c" (__c), "=&d" (__d) \
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: : "rdi", "rsi", "r8", "r9", "r10", "r11"); \
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__l; })
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#elif defined __sh__
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# define TLS_LE(x) \
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({ int *__l; void *__tp; \
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asm ("stc gbr,%1\n\t" \
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"mov.l 1f,%0\n\t" \
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"bra 2f\n\t" \
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" add %1,%0\n\t" \
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".align 2\n\t" \
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"1: .long " #x "@tpoff\n\t" \
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"2:" \
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: "=r" (__l), "=r" (__tp)); \
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__l; })
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# define TLS_IE(x) \
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({ int *__l; void *__tp; \
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asm ("mova 0f,r0\n\t" \
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"mov.l 0f,r12\n\t" \
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"add r0,r12\n\t" \
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"mov.l 1f,r0\n\t" \
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"stc gbr,%1\n\t" \
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"mov.l @(r0,r12),%0\n\t" \
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"bra 2f\n\t" \
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" add %1,%0\n\t" \
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".align 2\n\t" \
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"1: .long " #x "@gottpoff\n\t" \
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"0: .long _GLOBAL_OFFSET_TABLE_\n\t" \
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"2:" \
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: "=r" (__l), "=r" (__tp) : : "r0", "r12"); \
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__l; })
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# define TLS_LD(x) \
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({ int *__l; \
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asm ("mova 0f,r0\n\t" \
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"mov.l 0f,r12\n\t" \
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"add r0,r12\n\t" \
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"mov.l 1f,r4\n\t" \
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"mova 2f,r0\n\t" \
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"mov.l 2f,r1\n\t" \
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"add r0,r1\n\t" \
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"jsr @r1\n\t" \
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" add r12,r4\n\t" \
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"bra 4f\n\t" \
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" nop\n\t" \
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".align 2\n\t" \
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"1: .long " #x "@tlsldm\n\t" \
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"2: .long __tls_get_addr@plt\n\t" \
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"0: .long _GLOBAL_OFFSET_TABLE_\n\t" \
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"4: mov.l 3f,%0\n\t" \
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"bra 5f\n\t" \
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" add r0,%0\n\t" \
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".align 2\n\t" \
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"3: .long " #x "@dtpoff\n\t" \
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"5:" \
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: "=r" (__l) : : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
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"r12", "pr", "t"); \
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__l; })
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# define TLS_GD(x) \
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({ int *__l; \
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asm ("mova 0f,r0\n\t" \
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"mov.l 0f,r12\n\t" \
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"add r0,r12\n\t" \
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"mov.l 1f,r4\n\t" \
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"mova 2f,r0\n\t" \
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"mov.l 2f,r1\n\t" \
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"add r0,r1\n\t" \
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"jsr @r1\n\t" \
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" add r12,r4\n\t" \
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"bra 3f\n\t" \
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" mov r0,%0\n\t" \
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".align 2\n\t" \
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"1: .long " #x "@tlsgd\n\t" \
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"2: .long __tls_get_addr@plt\n\t" \
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"0: .long _GLOBAL_OFFSET_TABLE_\n\t" \
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"3:" \
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: "=r" (__l) : : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
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"r12", "pr", "t"); \
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__l; })
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#elif defined __alpha__
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register void *__gp __asm__("$29");
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# define TLS_LE(x) \
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({ int *__l; \
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asm ("call_pal 158\n\tlda $0," #x "($0)\t\t!tprel" : "=v"(__l)); \
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__l; })
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# define TLS_IE(x) \
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({ char *__tp; unsigned long __o; \
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asm ("call_pal 158\n\tldq %1," #x "($gp)\t\t!gottprel" \
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: "=v"(__tp), "=r"(__o) : "r"(__gp)); \
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(int *)(__tp + __o); })
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# define TLS_LD(x) \
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({ extern void *__tls_get_addr(void *); int *__l; void *__i; \
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asm ("lda %0," #x "($gp)\t\t!tlsldm" : "=r" (__i) : "r"(__gp)); \
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__i = __tls_get_addr(__i); \
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asm ("lda %0, " #x "(%1)\t\t!dtprel" : "=r"(__l) : "r"(__i)); \
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__l; })
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# define TLS_GD(x) \
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({ extern void *__tls_get_addr(void *); void *__i; \
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asm ("lda %0," #x "($gp)\t\t!tlsgd" : "=r" (__i) : "r"(__gp)); \
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(int *) __tls_get_addr(__i); })
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#elif defined __ia64__
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# define TLS_LE(x) \
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({ void *__l; \
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asm ("mov r2=r13\n\t" \
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";;\n\t" \
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"addl %0=@tprel(" #x "),r2\n\t" \
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: "=r" (__l) : : "r2" ); __l; })
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# define TLS_IE(x) \
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({ void *__l; \
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asm (";;\n\t" \
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"addl r16=@ltoff(@tprel(" #x ")),gp\n\t" \
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";;\n\t" \
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"ld8 r17=[r16]\n\t" \
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";;\n\t" \
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"add %0=r13,r17\n\t" \
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: "=r" (__l) : : "r16", "r17" ); __l; })
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# define __TLS_CALL_CLOBBERS \
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"r2", "r3", "r8", "r9", "r10", "r11", "r14", "r15", "r16", "r17", \
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"r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", \
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"r27", "r28", "r29", "r30", "r31", \
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"p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \
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"f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
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"b6", "b7", \
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"out0", "out1", "out2", "out3", "out4", "out5", "out6", "out7"
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# define TLS_LD(x) \
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({ void *__l; \
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asm (";;\n\t" \
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"mov loc0=gp\n\t" \
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"addl r16=@ltoff(@dtpmod(" #x ")),gp\n\t" \
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"addl out1=@dtprel(" #x "),r0\n\t" \
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";;\n\t" \
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"ld8 out0=[r16]\n\t" \
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"br.call.sptk.many b0=__tls_get_addr" \
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";;\n\t" \
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"mov gp=loc0\n\t" \
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"mov %0=r8\n\t" \
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: "=r" (__l) : : "loc0", __TLS_CALL_CLOBBERS); \
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__l; })
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# define TLS_GD(x) \
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({ void *__l; \
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asm (";;\n\t" \
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"mov loc0=gp\n\t" \
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"addl r16=@ltoff(@dtpmod(" #x ")),gp\n\t" \
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"addl r17=@ltoff(@dtprel(" #x ")),gp\n\t" \
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";;\n\t" \
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"ld8 out0=[r16]\n\t" \
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"ld8 out1=[r17]\n\t" \
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"br.call.sptk.many b0=__tls_get_addr" \
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";;\n\t" \
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"mov gp=loc0\n\t" \
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"mov %0=r8\n\t" \
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: "=r" (__l) : : "loc0", __TLS_CALL_CLOBBERS); \
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__l; })
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#else
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# error "No support for this architecture so far."
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#endif
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