[ARM/FDPIC v6 23/24] [ARM] FDPIC: Implement libitm support.

The ldaddr macro in sjlj.S needs to be updated to support the FDPIC
model.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

	libitm/
	* config/arm/sjlj.S (ldaddr): Add FDPIC support.

From-SVN: r275584

diff --git a/libitm/ChangeLog b/libitm/ChangeLog
index 39e8451..20f5768 100644 (file)
--- a/libitm/ChangeLog
+++ b/libitm/ChangeLog
@@ -1,7 +1,11 @@
 2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
 
-        * configure.tgt: Handle *-*-uclinux*.
-        * configure: Regenerate.
+       * config/arm/sjlj.S (ldaddr): Add FDPIC support.
+
+2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
+
+       * configure.tgt: Handle *-*-uclinux*.
+       * configure: Regenerate.
 
 2019-09-06  Florian Weimer  <fweimer@redhat.com>
 

diff --git a/libitm/config/arm/sjlj.S b/libitm/config/arm/sjlj.S
index a9abf16..5d44964 100644 (file)
--- a/libitm/config/arm/sjlj.S
+++ b/libitm/config/arm/sjlj.S
@@ -49,7 +49,16 @@
        .arch   armv7-m
 #endif
 
-#if defined(HAVE_MOVT) && defined(PIC)
+#if defined(__FDPIC__)
+.macro ldaddr reg, addr
+       ldr \reg, 99f
+       add \reg, \reg, r9
+.subsection 1
+       .align  2
+99:    .word   \addr(GOTOFF)
+.subsection 0
+.endm
+#elif defined(HAVE_MOVT) && defined(PIC)
 .macro ldaddr reg, addr
        movw    \reg, #:lower16:(\addr - (98f + PC_OFS))
        movt    \reg, #:upper16:(\addr - (98f + PC_OFS))