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Roughly implement libpthread support.

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This commit is contained in:
Marcel Moolenaar 2007-05-01 18:28:08 +00:00
parent 1e7d5fbfb0
commit 85999a0155
1 changed files with 19 additions and 1 deletions
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20
lib/libthread_db/arch/powerpc/libpthread_md.c
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@ -37,21 +37,37 @@ __FBSDID("$FreeBSD$");
void
pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
{
mcontext_t *mc = &uc->uc_mcontext;
memcpy(mc->mc_frame, r, MIN(sizeof(mc->mc_frame), sizeof(*r)));
}
void
pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
{
const mcontext_t *mc = &uc->uc_mcontext;
memcpy(r, mc->mc_frame, MIN(sizeof(mc->mc_frame), sizeof(*r)));
}
void
pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
{
mcontext_t *mc = &uc->uc_mcontext;
memcpy(mc->mc_fpreg, r, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
mc->mc_flags |= _MC_FP_VALID;
}
void
pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
{
const mcontext_t *mc = &uc->uc_mcontext;
if (mc->mc_flags & _MC_FP_VALID)
memcpy(r, mc->mc_fpreg, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
else
memset(r, 0, sizeof(*r));
}
void
@ -62,4 +78,6 @@ pt_md_init(void)
int
pt_reg_sstep(struct reg *reg, int step)
{
/* XXX */
}