diff options
Diffstat (limited to 'lib/libthread_db/arch/amd64/libpthread_md.c')
| -rw-r--r-- | lib/libthread_db/arch/amd64/libpthread_md.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/lib/libthread_db/arch/amd64/libpthread_md.c b/lib/libthread_db/arch/amd64/libpthread_md.c new file mode 100644 index 0000000..8fca1fd --- /dev/null +++ b/lib/libthread_db/arch/amd64/libpthread_md.c @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2004 David Xu <davidxu@freebsd.org> + * Copyright (c) 2004 Marcel Moolenaar + * All rights reserved. + * + * 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 ``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 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/procfs.h> +#include <ucontext.h> + +void +pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) +{ + mcontext_t *mc = &uc->uc_mcontext; + + mc->mc_rdi = r->r_rdi; + mc->mc_rsi = r->r_rsi; + mc->mc_rdx = r->r_rdx; + mc->mc_rcx = r->r_rcx; + mc->mc_r8 = r->r_r8; + mc->mc_r9 = r->r_r9; + mc->mc_rax = r->r_rax; + mc->mc_rbx = r->r_rbx; + mc->mc_rbp = r->r_rbp; + mc->mc_r10 = r->r_r10; + mc->mc_r11 = r->r_r11; + mc->mc_r12 = r->r_r12; + mc->mc_r13 = r->r_r13; + mc->mc_r14 = r->r_r14; + mc->mc_r15 = r->r_r15; + mc->mc_rip = r->r_rip; + mc->mc_cs = r->r_cs; + mc->mc_rflags = r->r_rflags; + mc->mc_rsp = r->r_rsp; + mc->mc_ss = r->r_ss; +} + +void +pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) +{ + const mcontext_t *mc = &uc->uc_mcontext; + + r->r_rdi = mc->mc_rdi; + r->r_rsi = mc->mc_rsi; + r->r_rdx = mc->mc_rdx; + r->r_rcx = mc->mc_rcx; + r->r_r8 = mc->mc_r8; + r->r_r9 = mc->mc_r9; + r->r_rax = mc->mc_rax; + r->r_rbx = mc->mc_rbx; + r->r_rbp = mc->mc_rbp; + r->r_r10 = mc->mc_r10; + r->r_r11 = mc->mc_r11; + r->r_r12 = mc->mc_r12; + r->r_r13 = mc->mc_r13; + r->r_r14 = mc->mc_r14; + r->r_r15 = mc->mc_r15; + r->r_rip = mc->mc_rip; + r->r_cs = mc->mc_cs; + r->r_rflags = mc->mc_rflags; + r->r_rsp = mc->mc_rsp; + r->r_ss = mc->mc_ss; +} + +void +pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc) +{ + memcpy(&uc->uc_mcontext.mc_fpstate, r, sizeof(r)); +} + +void +pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) +{ + memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(r)); +} + +void +pt_md_init(void) +{ + /* Nothing to do */ +} + +int +pt_reg_sstep(struct reg *reg, int step) +{ + register_t old; + + old = reg->r_rflags; + if (step) + reg->r_rflags |= 0x0100; + else + reg->r_rflags &= ~0x0100; + return (old != reg->r_rflags); /* changed ? */ +} |
