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tcg: Introduce tcg_splitwx_to_{rx,rw}

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Add two helper functions, using a global variable to hold
the displacement.  The displacement is currently always 0,
so no change in behaviour.

Begin using the functions in tcg common code only.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-10-28 12:05:44 -07:00
parent 4846cd37df
commit db0c51a380
13 changed files with 105 additions and 40 deletions
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6
tcg/tcg-pool.c.inc
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@ -140,6 +140,8 @@ static int tcg_out_pool_finalize(TCGContext *s)
for (; p != NULL; p = p->next) {
size_t size = sizeof(tcg_target_ulong) * p->nlong;
uintptr_t value;
if (!l || l->nlong != p->nlong || memcmp(l->data, p->data, size)) {
if (unlikely(a > s->code_gen_highwater)) {
return -1;
@ -148,7 +150,9 @@ static int tcg_out_pool_finalize(TCGContext *s)
a += size;
l = p;
}
if (!patch_reloc(p->label, p->rtype, (intptr_t)a - size, p->addend)) {
value = (uintptr_t)tcg_splitwx_to_rx(a) - size;
if (!patch_reloc(p->label, p->rtype, value, p->addend)) {
return -2;
}
}