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Add code to implement register structure converter.

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This commit is contained in:
David Xu 2004-08-01 02:08:39 +00:00
parent 73d80fcf4a
commit 6cc695d3b2
1 changed files with 56 additions and 1 deletions
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57
lib/libthread_db/arch/amd64/libpthread_md.c
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@ -1,4 +1,5 @@
/*
* Copyright (c) 2004 David Xu <davidxu@freebsd.org>
* Copyright (c) 2004 Marcel Moolenaar
* All rights reserved.
*
@ -33,30 +34,84 @@ __FBSDID("$FreeBSD$");
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)
{
return (0);
register_t old;
old = reg->r_rflags;
if (step)
reg->r_rflags |= 0x0100;
else
reg->r_rflags &= ~0x0100;
return (old != reg->r_rflags); /* changed ? */
}