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Add the RISC-V MD parts of libthread_db.

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Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
Differential Revision:	https://reviews.freebsd.org/D5064
This commit is contained in:
Ruslan Bukin 2016-01-27 10:34:07 +00:00
parent af6fef3abb
commit c9a2d57082
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=294908
1 changed files with 104 additions and 0 deletions
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104
lib/libthread_db/arch/riscv/libpthread_md.c Normal file
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/*-
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <string.h>
#include <thread_db.h>
#include "libpthread_db.h"
void
pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
{
mcontext_t *mc;
mc = &uc->uc_mcontext;
memcpy(mc->mc_gpregs.gp_t, r->t, sizeof(mc->mc_gpregs.gp_t));
memcpy(mc->mc_gpregs.gp_s, r->s, sizeof(mc->mc_gpregs.gp_s));
memcpy(mc->mc_gpregs.gp_a, r->a, sizeof(mc->mc_gpregs.gp_a));
mc->mc_gpregs.gp_ra = r->ra;
mc->mc_gpregs.gp_sp = r->sp;
mc->mc_gpregs.gp_gp = r->gp;
mc->mc_gpregs.gp_tp = r->tp;
mc->mc_gpregs.gp_sepc = r->sepc;
mc->mc_gpregs.gp_sstatus = r->sstatus;
}
void
pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
{
const mcontext_t *mc;
mc = &uc->uc_mcontext;
memcpy(r->t, mc->mc_gpregs.gp_t, sizeof(mc->mc_gpregs.gp_t));
memcpy(r->s, mc->mc_gpregs.gp_s, sizeof(mc->mc_gpregs.gp_s));
memcpy(r->a, mc->mc_gpregs.gp_a, sizeof(mc->mc_gpregs.gp_a));
r->ra = mc->mc_gpregs.gp_ra;
r->sp = mc->mc_gpregs.gp_sp;
r->gp = mc->mc_gpregs.gp_gp;
r->tp = mc->mc_gpregs.gp_tp;
r->sepc = mc->mc_gpregs.gp_sepc;
r->sstatus = mc->mc_gpregs.gp_sstatus;
}
void
pt_fpreg_to_ucontext(const struct fpreg *r __unused, ucontext_t *uc __unused)
{
/* RISCVTODO */
}
void
pt_ucontext_to_fpreg(const ucontext_t *uc __unused, struct fpreg *r __unused)
{
/* RISCVTODO */
}
void
pt_md_init(void)
{
}
int
pt_reg_sstep(struct reg *reg __unused, int step __unused)
{
return (0);
}