[v3] Mirror map JIT memory for TCG

[PATCH v3 24/41] tcg: Introduce tcg_tbrel_diff

Richard Henderson posted 41 patches 5 years, 1 month ago

Diff against v1 v1 v2 v4 v5
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Maintainers: Alistair Francis <Alistair.Francis@wdc.com>, Richard Henderson <rth@twiddle.net>, Michael Rolnik <mrolnik@gmail.com>, Laurent Vivier <laurent@vivier.eu>, Sagar Karandikar <sagark@eecs.berkeley.edu>, Palmer Dabbelt <palmer@dabbelt.com>, Huacai Chen <chenhc@lemote.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Peter Maydell <peter.maydell@linaro.org>, Eduardo Habkost <ehabkost@redhat.com>, Artyom Tarasenko <atar4qemu@gmail.com>, Sarah Harris <S.E.Harris@kent.ac.uk>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Thomas Huth <thuth@redhat.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Aurelien Jarno <aurelien@aurel32.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Richard Henderson <richard.henderson@linaro.org>, Cornelia Huck <cohuck@redhat.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Andrzej Zaborowski <balrogg@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Stefan Weil <sw@weilnetz.de>

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[PATCH v3 24/41] tcg: Introduce tcg_tbrel_diff

Posted by Richard Henderson 5 years, 1 month ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index 67d57695c2..90ec7c1445 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -1141,6 +1141,19 @@ static inline ptrdiff_t tcg_pcrel_diff(TCGContext *s, const void *target)
     return tcg_ptr_byte_diff(target, tcg_splitwx_to_rx(s->code_ptr));
 }
 
+/**
+ * tcg_tbrel_diff
+ * @s: the tcg context
+ * @target: address of the target
+ *
+ * Produce a difference, from the beginning of the current TB code
+ * to the destination address.
+ */
+static inline ptrdiff_t tcg_tbrel_diff(TCGContext *s, const void *target)
+{
+    return tcg_ptr_byte_diff(target, tcg_splitwx_to_rx(s->code_buf));
+}
+
 /**
  * tcg_current_code_size
  * @s: the tcg context
-- 
2.25.1