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authorCyrille Bagard <nocbos@gmail.com>2015-05-11 00:58:05 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2015-05-11 00:58:05 (GMT)
commit46bcc7f122245f22772fd3e38d16e6afa7bd5881 (patch)
treed3c2ba1a9999e373428954f24d0e60c1ea63b756 /src/arch/vmpa.c
parent1bda6c517d30d873ff0d92a96380946ef944c9ae (diff)
Provided a way to look for ROP gadgets in binary code.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@533 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/vmpa.c')
-rw-r--r--src/arch/vmpa.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/arch/vmpa.c b/src/arch/vmpa.c
index ad4c078..b10b007 100644
--- a/src/arch/vmpa.c
+++ b/src/arch/vmpa.c
@@ -247,6 +247,32 @@ void advance_vmpa(vmpa2t *addr, phys_t qty)
/******************************************************************************
* *
+* Paramètres : addr = élément à modifier. *
+* qty = quantité d'unités de décallage. *
+* *
+* Description : Décalle une position d'une certaine quantité. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+void deminish_vmpa(vmpa2t *addr, phys_t qty)
+{
+ /* On choisit de ne pas vérifier les débordements */
+
+ if (addr->physical != VMPA_NO_PHYSICAL)
+ addr->physical -= qty;
+
+ if (addr->virtual != VMPA_NO_VIRTUAL)
+ addr->virtual -= qty;
+
+}
+
+
+/******************************************************************************
+* *
* Paramètres : a = première élément à venir consulter. *
* b = second élément à traiter en parallèle. *
* *