From: Paul Floyd <pjfloyd@wanadoo.fr>
Date: Thu, 8 Feb 2024 13:09:15 +0000 (+0100)
Subject: Bug 283429 - ARM leak checking needs CLEAR_CALLER_SAVED_REGS
X-Git-Tag: VALGRIND_3_23_0~176
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81b7b2d4d9fe237f6e26887ccfba39687e808366;p=thirdparty%2Fvalgrind.git

Bug 283429 - ARM leak checking needs CLEAR_CALLER_SAVED_REGS

Unfortunately it took over 12 years to reinvent the wheel and
fix this item.

See also
d91042c29dd3fbe2971f36f35b08e9735327f50a
and
b0015f7572bf42ee4ac1296884f5e7640ec1e5dc
---

diff --git a/NEWS b/NEWS
index a902488af7..21e07e8975 100644
--- a/NEWS
+++ b/NEWS
@@ -24,6 +24,7 @@ than mailing the developers (or mailing lists) directly -- bugs that
 are not entered into bugzilla tend to get forgotten about or ignored.
 
 
+283429  ARM leak checking needs CLEAR_CALLER_SAVED_REGS
 281059  Cannot connect to Oracle using valgrind
 390269  unhandled amd64-darwin syscall: unix:464 (openat_nocancel)
 401284  False positive "Source and destination overlap in strncat"
diff --git a/memcheck/tests/leak.h b/memcheck/tests/leak.h
index 23722a4217..9e3cd2ad8f 100644
--- a/memcheck/tests/leak.h
+++ b/memcheck/tests/leak.h
@@ -153,6 +153,9 @@
 #define CLEAR_CALLER_SAVED_REGS                                              \
    do {                                                                      \
       __asm__ __volatile__ ("mov %r0, $0\n\t");                              \
+      __asm__ __volatile__ ("mov %r1, $0\n\t");                              \
+      __asm__ __volatile__ ("mov %r2, $0\n\t");                              \
+      __asm__ __volatile__ ("mov %r3, $0\n\t");                              \
    } while (0)
 #else
 #define CLEAR_CALLER_SAVED_REGS  /*nothing*/