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c776fa113d
This patch contains code that needs to directly know about the RISC-V ABI, which is specified in a work-in-progress psABI document: https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md This is meant to contain all the RISC-V code that needs to explicitly name registers or manage in-memory structure layout. This does not contain any of the Linux-specific code. 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/__longjmp.S: New file. * sysdeps/riscv/backtrace.c: Likewise. * sysdeps/riscv/bits/endian.h: Likewise. * sysdeps/riscv/bits/setjmp.h: Likewise. * sysdeps/riscv/bits/wordsize.h: Likewise. * sysdeps/riscv/bsd-_setjmp.c: Likewise. * sysdeps/riscv/bsd-setjmp.c: Likewise. * sysdeps/riscv/dl-trampoline.S: Likewise. * sysdeps/riscv/gccframe.h: Likewise. * sysdeps/riscv/jmpbuf-offsets.h: Likewise. * sysdeps/riscv/jmpbuf-unwind.h: Likewise. * sysdeps/riscv/machine-gmon.h: Likewise. * sysdeps/riscv/memusage.h: Likewise. * sysdeps/riscv/setjmp.S: Likewise. * sysdeps/riscv/sys/asm.h: Likewise. * sysdeps/riscv/tls-macros.h: Likewise.
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* Macros to support TLS testing in times of missing compiler support.
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Copyright (C) 2017-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 <sys/cdefs.h>
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#include <sys/asm.h>
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#include <sysdep.h>
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#include "dl-tls.h"
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#define LOAD_GP \
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".option push\n\t" \
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".option norelax\n\t" \
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"la gp, __global_pointer$\n\t" \
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".option pop\n\t"
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#define UNLOAD_GP
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#define TLS_GD(x) \
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({ void *__result; \
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asm (LOAD_GP \
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"la.tls.gd %0, " #x "\n\t" \
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UNLOAD_GP \
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: "=r" (__result)); \
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__tls_get_addr (__result); })
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#define TLS_LD(x) TLS_GD(x)
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#define TLS_IE(x) \
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({ void *__result; \
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asm (LOAD_GP \
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"la.tls.ie %0, " #x "\n\t" \
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"add %0, %0, tp\n\t" \
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UNLOAD_GP \
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: "=r" (__result)); \
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__result; })
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#define TLS_LE(x) \
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({ void *__result; \
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asm (LOAD_GP \
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"lui %0, %%tprel_hi(" #x ")\n\t" \
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"add %0, %0, tp, %%tprel_add(" #x ")\n\t" \
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"addi %0, %0, %%tprel_lo(" #x ")\n\t" \
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UNLOAD_GP \
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: "=r" (__result)); \
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__result; })
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