[warrior] [meta-qt4] recipes-qt4: qt4-embedded: fix build on GCC v8


Quentin Schulz
 

At least since gcc v8, source code with asm volatile won't compile
anymore.

The volatile qualifier anyway is a no-op since asm blocks are implicitly
volatile as written in the documentation[1].

Let's get rid of this redundant qualifier so we can build with newer
GCCs.

The resulting error message when building for warrior is the following
(note that there is a bunch of them):
../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:617:5: error: expected '(' before 'volatile'
asm volatile (
^~~~~~~~
(
../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:618:1: error: expected unqualified-id before string constant
".text\n"
^~~~~~~~~
../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:617:15: error: expected ')' before string constant
asm volatile (
~^
)
".text\n"
~~~~~~~~~

[1] https://gcc.gnu.org/onlinedocs/gcc/Basic-Asm.html#Basic-Asm

Signed-off-by: Quentin Schulz <quentin.schulz@streamunlimited.com>
---

Please ignore previous mail, I only sent a patch for the sources of qt4-embedded
and not a patch for meta-qt4.

...iptcore-JITStubs.cpp-allow-builds-of.patch | 262 ++++++++++++++++++
recipes-qt4/qt4/qt4-embedded.inc | 1 +
2 files changed, 263 insertions(+)
create mode 100644 recipes-qt4/qt4/qt4-4.8.7/0038-3rdparty-javascriptcore-JITStubs.cpp-allow-builds-of.patch

diff --git a/recipes-qt4/qt4/qt4-4.8.7/0038-3rdparty-javascriptcore-JITStubs.cpp-allow-builds-of.patch b/recipes-qt4/qt4/qt4-4.8.7/0038-3rdparty-javascriptcore-JITStubs.cpp-allow-builds-of.patch
new file mode 100644
index 0000000..12f955f
--- /dev/null
+++ b/recipes-qt4/qt4/qt4-4.8.7/0038-3rdparty-javascriptcore-JITStubs.cpp-allow-builds-of.patch
@@ -0,0 +1,262 @@
+From 6318ac5a0771fdf074bdfb929903c660fa1fa672 Mon Sep 17 00:00:00 2001
+From: Quentin Schulz <quentin.schulz@streamunlimited.com>
+Date: Fri, 15 Nov 2019 13:57:12 +0100
+Subject: [PATCH] 3rdparty: javascriptcore: JITStubs.cpp: allow builds of
+ JavaScriptCore with gcc v8
+
+At least since gcc v8, source code with asm volatile won't compile
+anymore.
+
+The volatile qualifier anyway is a no-op since asm blocks are implicitly
+volatile as written in the documentation[1].
+
+Let's get rid of this redundant qualifier so we can build with newer
+GCCs.
+
+The resulting error message is the following (note that there is a
+bunch of them):
+../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:617:5: error: expected '(' before 'volatile'
+asm volatile (
+ ^~~~~~~~
+ (
+../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:618:1: error: expected unqualified-id before string constant
+".text\n"
+^~~~~~~~~
+../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:617:15: error: expected ')' before string constant
+asm volatile (
+ ~^
+ )
+".text\n"
+~~~~~~~~~
+
+[1] https://gcc.gnu.org/onlinedocs/gcc/Basic-Asm.html#Basic-Asm
+
+Upstream-Status: Inappropriate
+Signed-off-by: Quentin Schulz <quentin.schulz@streamunlimited.com>
+---
+ .../JavaScriptCore/jit/JITStubs.cpp | 48 +++++++++----------
+ 1 file changed, 24 insertions(+), 24 deletions(-)
+
+diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp
+index d8027ff2..dcead6d0 100644
+--- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp
++++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp
+@@ -116,7 +116,7 @@ COMPILE_ASSERT(offsetof(struct JITStackFrame, savedEBX) == 0x3c, JITStackFrame_s
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, callFrame) == 0x58, JITStackFrame_callFrame_offset_matches_ctiTrampoline);
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, code) == 0x50, JITStackFrame_code_offset_matches_ctiTrampoline);
+
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+ HIDE_SYMBOL(ctiTrampoline) "\n"
+@@ -138,7 +138,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+ HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
+ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+@@ -154,7 +154,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+ HIDE_SYMBOL(ctiOpThrowNotCaught) "\n"
+ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+@@ -179,7 +179,7 @@ COMPILE_ASSERT(offsetof(struct JITStackFrame, savedRBX) == 0x48, JITStackFrame_s
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, callFrame) == 0x90, JITStackFrame_callFrame_offset_matches_ctiTrampoline);
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, code) == 0x80, JITStackFrame_code_offset_matches_ctiTrampoline);
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+ HIDE_SYMBOL(ctiTrampoline) "\n"
+ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+@@ -206,7 +206,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+ HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
+ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+@@ -222,7 +222,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+ HIDE_SYMBOL(ctiOpThrowNotCaught) "\n"
+ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+@@ -242,7 +242,7 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+ #error "JIT_STUB_ARGUMENT_VA_LIST not supported on ARMv7."
+ #endif
+
+-asm volatile (
++asm (
+ ".text" "\n"
+ ".align 2" "\n"
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+@@ -269,7 +269,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "bx lr" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".text" "\n"
+ ".align 2" "\n"
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+@@ -287,7 +287,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+ "bx lr" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".text" "\n"
+ ".align 2" "\n"
+ ".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+@@ -305,7 +305,7 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+
+ #elif COMPILER(GCC) && CPU(ARM_TRADITIONAL)
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+ HIDE_SYMBOL(ctiTrampoline) "\n"
+ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+@@ -323,7 +323,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "mov pc, lr" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+ HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
+ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+@@ -418,7 +418,7 @@ COMPILE_ASSERT(offsetof(struct JITStackFrame, callFrame) == 0x38, JITStackFrame_
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, code) == 0x30, JITStackFrame_code_offset_matches_ctiTrampoline);
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, savedEBX) == 0x1c, JITStackFrame_stub_argument_space_matches_ctiTrampoline);
+
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+ HIDE_SYMBOL(ctiTrampoline) "\n"
+@@ -440,7 +440,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+ HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
+ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+@@ -456,7 +456,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+ HIDE_SYMBOL(ctiOpThrowNotCaught) "\n"
+ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+@@ -480,7 +480,7 @@ COMPILE_ASSERT(offsetof(struct JITStackFrame, callFrame) == 0x58, JITStackFrame_
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, code) == 0x48, JITStackFrame_code_offset_matches_ctiTrampoline);
+ COMPILE_ASSERT(offsetof(struct JITStackFrame, savedRBX) == 0x78, JITStackFrame_stub_argument_space_matches_ctiTrampoline);
+
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+ HIDE_SYMBOL(ctiTrampoline) "\n"
+@@ -515,7 +515,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+ HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
+ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+@@ -531,7 +531,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+ "ret" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+ HIDE_SYMBOL(ctiOpThrowNotCaught) "\n"
+ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+@@ -551,7 +551,7 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+ #error "JIT_STUB_ARGUMENT_VA_LIST not supported on ARMv7."
+ #endif
+
+-asm volatile (
++asm (
+ ".text" "\n"
+ ".align 2" "\n"
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+@@ -578,7 +578,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "bx lr" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".text" "\n"
+ ".align 2" "\n"
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+@@ -596,7 +596,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+ "bx lr" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".text" "\n"
+ ".align 2" "\n"
+ ".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+@@ -614,7 +614,7 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+
+ #elif COMPILER(GCC) && CPU(ARM_TRADITIONAL)
+
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+ HIDE_SYMBOL(ctiTrampoline) "\n"
+@@ -632,7 +632,7 @@ SYMBOL_STRING(ctiTrampoline) ":" "\n"
+ "mov pc, lr" "\n"
+ );
+
+-asm volatile (
++asm (
+ ".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+ HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
+ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+@@ -1024,7 +1024,7 @@ static NEVER_INLINE void throwStackOverflowError(CallFrame* callFrame, JSGlobalD
+ extern "C" { \
+ rtype JITStubThunked_##op(STUB_ARGS_DECLARATION); \
+ }; \
+- asm volatile ( \
++ asm ( \
+ ".text" "\n" \
+ ".align 2" "\n" \
+ ".globl " SYMBOL_STRING(cti_##op) "\n" \
+@@ -1053,7 +1053,7 @@ COMPILE_ASSERT(offsetof(struct JITStackFrame, thunkReturnAddress) == THUNK_RETUR
+ extern "C" { \
+ rtype JITStubThunked_##op(STUB_ARGS_DECLARATION); \
+ }; \
+- asm volatile ( \
++ asm ( \
+ ".globl " SYMBOL_STRING(cti_##op) "\n" \
+ HIDE_SYMBOL(cti_##op) "\n" \
+ SYMBOL_STRING(cti_##op) ":" "\n" \
+--
+2.17.1
+
diff --git a/recipes-qt4/qt4/qt4-embedded.inc b/recipes-qt4/qt4/qt4-embedded.inc
index 9c2d9da..5d4a9b0 100644
--- a/recipes-qt4/qt4/qt4-embedded.inc
+++ b/recipes-qt4/qt4/qt4-embedded.inc
@@ -12,6 +12,7 @@ QT_BASE_LIB ?= "libqt-embedded"
# Set necessary variables in the profile
SRC_URI += "file://qte.sh \
file://0033-configure-support-c-0x-standard-for-directfd.patch \
+ file://0001-3rdparty-javascriptcore-JITStubs.cpp-allow-builds-of.patch \
"

QT_EMBEDDED_FLAGS ?= " \
--
2.17.1

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