177 lines
4.4 KiB
C
177 lines
4.4 KiB
C
/* This file is part of the GNU C Library.
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Copyright (C) 2012-2013 Free Software Foundation, Inc.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#ifdef __ASSEMBLER__
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# ifdef SHARED
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# define SPARC_ASM_IFUNC_DFLT(name, dflt) \
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ENTRY (__##name) \
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.type __##name, @gnu_indirect_function; \
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SETUP_PIC_REG_LEAF(o3, o5); \
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sethi %gdop_hix22(dflt), %o1; \
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xor %o1, %gdop_lox10(dflt), %o1; \
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add %o3, %o1, %o1; \
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retl; \
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mov %o1, %o0; \
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END (__##name)
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# define SPARC_ASM_IFUNC1(name, m1, f1, dflt) \
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ENTRY (__##name) \
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.type __##name, @gnu_indirect_function; \
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SETUP_PIC_REG_LEAF(o3, o5); \
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set m1, %o1; \
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andcc %o0, %o1, %g0; \
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be 9f; \
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nop; \
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sethi %gdop_hix22(f1), %o1; \
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xor %o1, %gdop_lox10(f1), %o1; \
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ba 10f; \
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nop; \
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9: sethi %gdop_hix22(dflt), %o1; \
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xor %o1, %gdop_lox10(dflt), %o1; \
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10: add %o3, %o1, %o1; \
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retl; \
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mov %o1, %o0; \
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END (__##name)
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# define SPARC_ASM_IFUNC2(name, m1, f1, m2, f2, dflt) \
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ENTRY (__##name) \
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.type __##name, @gnu_indirect_function; \
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SETUP_PIC_REG_LEAF(o3, o5); \
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set m1, %o1; \
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andcc %o0, %o1, %g0; \
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be 8f; \
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nop; \
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sethi %gdop_hix22(f1), %o1; \
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xor %o1, %gdop_lox10(f1), %o1; \
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ba 10f; \
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nop; \
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8: set m2, %o1; \
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andcc %o0, %o1, %g0; \
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be 9f; \
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nop; \
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sethi %gdop_hix22(f2), %o1; \
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xor %o1, %gdop_lox10(f2), %o1; \
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ba 10f; \
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nop; \
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9: sethi %gdop_hix22(dflt), %o1; \
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xor %o1, %gdop_lox10(dflt), %o1; \
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10: add %o3, %o1, %o1; \
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retl; \
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mov %o1, %o0; \
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END (__##name)
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# else /* SHARED */
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# ifdef __arch64__
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# define SET(SYM, TMP, REG) setx SYM, TMP, REG
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# else
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# define SET(SYM, TMP, REG) set SYM, REG
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# endif
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# define SPARC_ASM_IFUNC_DFLT(name, dflt) \
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ENTRY (__##name) \
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.type __##name, @gnu_indirect_function; \
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SET(dflt, %g1, %o1); \
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retl; \
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mov %o1, %o0; \
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END (__##name)
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# define SPARC_ASM_IFUNC1(name, m1, f1, dflt) \
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ENTRY (__##name) \
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.type __##name, @gnu_indirect_function; \
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set m1, %o1; \
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andcc %o0, %o1, %g0; \
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be 9f; \
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nop; \
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SET(f1, %g1, %o1); \
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ba 10f; \
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nop; \
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9: SET(dflt, %g1, %o1); \
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10: retl; \
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mov %o1, %o0; \
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END (__##name)
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# define SPARC_ASM_IFUNC2(name, m1, f1, m2, f2, dflt) \
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ENTRY (__##name) \
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.type __##name, @gnu_indirect_function; \
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set m1, %o1; \
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andcc %o0, %o1, %g0; \
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be 8f; \
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nop; \
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SET(f1, %g1, %o1); \
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ba 10f; \
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nop; \
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8: set m2, %o1; \
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andcc %o0, %o1, %g0; \
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be 9f; \
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nop; \
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SET(f2, %g1, %o1); \
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ba 10f; \
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nop; \
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9: SET(dflt, %g1, %o1); \
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10: retl; \
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mov %o1, %o0; \
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END (__##name)
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# endif /* SHARED */
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#define SPARC_ASM_VIS2_IFUNC(name) \
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SPARC_ASM_IFUNC1(name, HWCAP_SPARC_VIS2, \
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__##name##_vis2, __##name##_generic)
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# ifdef HAVE_AS_VIS3_SUPPORT
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#define SPARC_ASM_VIS3_IFUNC(name) \
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SPARC_ASM_IFUNC1(name, HWCAP_SPARC_VIS3, \
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__##name##_vis3, __##name##_generic)
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#define SPARC_ASM_VIS3_VIS2_IFUNC(name) \
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SPARC_ASM_IFUNC2(name, HWCAP_SPARC_VIS3, \
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__##name##_vis3, \
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HWCAP_SPARC_VIS2, \
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__##name##_vis2, __##name##_generic)
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# else /* HAVE_AS_VIS3_SUPPORT */
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#define SPARC_ASM_VIS3_IFUNC(name) \
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SPARC_ASM_IFUNC_DFLT(name, __##name##_generic)
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#define SPARC_ASM_VIS3_VIS2_IFUNC(name) \
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SPARC_ASM_VIS2_IFUNC(name)
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# endif /* HAVE_AS_VIS3_SUPPORT */
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#else /* __ASSEMBLER__ */
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# define sparc_libm_ifunc(name, expr) \
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extern void *name##_ifunc (int) __asm__ (#name); \
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void *name##_ifunc (int hwcap) \
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{ \
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__typeof (name) *res = expr; \
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return res; \
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} \
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__asm__ (".type " #name ", %gnu_indirect_function");
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# define sparc_libc_ifunc(name, expr) sparc_libm_ifunc (name, expr)
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#endif /* __ASSEMBLER__ */
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