FS#11335 by me: make ARM assembly functions thumb-friendly

We can't pop into pc on ARMv4t when using thumb: the T bit won't be
modified if we are returning to a thumb function
Code running on ARMv4t should use the new ldrpc / ldmpc macros instead
of ldr pc, [sp], #4 and ldm(cond) sp!, {regs, pc}
No modification on pure ARM builds and ARMv5+

Note: USE_THUMB is currently never defined, no targets can currently be
built with -mthumb, see FS#6734

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26756 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 3 insertions, 1 deletions

diff --git a/apps/codecs/libwavpack/arml.S b/apps/codecs/libwavpack/arml.S
index 5745c81ed0..60818aa1e6 100644
--- a/apps/codecs/libwavpack/arml.S
+++ b/apps/codecs/libwavpack/arml.S
@@ -38,6 +38,8 @@
  * instruction.
  */
 
+#include "config.h"
+
         .text
         .align
         .global         decorr_stereo_pass_cont_arml
@@ -500,5 +502,5 @@ common_exit:
         mov     r4, r4, asr #18
         strh    r4, [r5, #4]
         strh    r0, [r5, #6]
-        ldmfd   sp!, {r4 - r8, r10, r11, pc}
+        ldmpc   regs="r4-r8, r10-r11"