On 2016-05-18 22:07, Khem Raj wrote:
On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.y...@windriver.com> wrote:
* It doesn't build on armv4:
{standard input}: Assembler messages:
{standard input}:52: Error: selected processor does not support `blx 
llint_throw_stack_overflow_error' in ARM mode
{standard input}:126: Error: selected processor does not support `bkpt #0' in 
ARM mode
{standard input}:128: Error: selected processor does not support `blx r0' in 
ARM mode
{standard input}:134: Error: selected processor does not support `bkpt #0' in 
ARM mode
{standard input}:185: Error: selected processor does not support `blx 
llint_throw_stack_overflow_error' in ARM mode
{standard input}:256: Error: selected processor does not support `blx r4' in 
ARM mode
{standard input}:310: Error: selected processor does not support `movw 
r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
{standard input}:311: Error: selected processor does not support `movt 
r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
{standard input}:315: Error: selected processor does not support `movw 
r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
{standard input}:316: Error: selected processor does not support `movt 
r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
[snip]

* It can build on armv7a, but doesn't work on runtime, cause
   displaying problems or ephiphany hang.

[YOCTO #9474]

Signed-off-by: Robert Yang <liezhi.y...@windriver.com>
---
  meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
  1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb 
b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
index bdbcbea..23ead72 100644
--- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
+++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
@@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
  EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
  EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "

-# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on 
v7 onwards
+# ARM JIT code does not build on ARMv4/5/6 anymore
  EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
  EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
+EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
+
+# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
+# displaying problems or ephiphany hang.
+EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "

this should work fine with thumb2 e.g. so this is a little broad brush
here to diable it across
all armv7

Why do you think that changing the instruction set (to thumb2) would
make the JIT work any better?

If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
the platform that inspired the original bug report.



  # binutils 2.25.1 has a bug on aarch64:
  # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
--
2.7.4

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