Reviewers: Jakob, Yang, ulan, yurys, Benedikt Meurer,
Message:
This CL is to enable x64 build of v8. Please review!
Description:
Enable x64 build
BUG=
Please review this at https://codereview.chromium.org/209323004/
SVN Base: https://github.com/v8/v8.git@master
Affected files (+31, -2 lines):
M build/android.gypi
M src/sampler.cc
Index: build/android.gypi
diff --git a/build/android.gypi b/build/android.gypi
index
c119271a20d59000ef2da218a9ac5ff5186e352d..5c5084f2b6c83178efb8676904890f7b7a970b88
100644
--- a/build/android.gypi
+++ b/build/android.gypi
@@ -184,6 +184,11 @@
'-L<(android_stlport_libs)/x86',
],
}],
+ ['target_arch=="x64"', {
+ 'ldflags': [
+ '-L<(android_stlport_libs)/x86_64',
+ ],
+ }],
['target_arch=="arm64"', {
'ldflags': [
'-L<(android_stlport_libs)/arm64',
@@ -252,8 +257,15 @@
}], # _toolset=="target"
# Settings for building host targets using the system toolchain.
['_toolset=="host"', {
- 'cflags': [ '-m32', '-pthread' ],
- 'ldflags': [ '-m32', '-pthread' ],
+ 'conditions': [
+ ['target_arch=="x64"', {
+ 'cflags': [ '-m64', '-pthread' ],
+ 'ldflags': [ '-m64', '-pthread' ],
+ }, {
+ 'cflags': [ '-m32', '-pthread' ],
+ 'ldflags': [ '-m32', '-pthread' ],
+ }],
+ ],
'ldflags!': [
'-Wl,-z,noexecstack',
'-Wl,--gc-sections',
Index: src/sampler.cc
diff --git a/src/sampler.cc b/src/sampler.cc
index
fef3f2847c4bf11fba2a5a9f4d5c4e6182cd12d6..c6830e69047612a5d7a3f73a255c9114cdce4df1
100644
--- a/src/sampler.cc
+++ b/src/sampler.cc
@@ -159,6 +159,23 @@ typedef struct ucontext {
// Other fields are not used by V8, don't define them here.
} ucontext_t;
enum { REG_EBP = 6, REG_ESP = 7, REG_EIP = 14 };
+
+#elif defined(__x86_64__)
+// x64 version for Android.
+typedef struct {
+ uint64_t gregs[23];
+ void* fpregs;
+ uint64_t __reserved1[8];
+} mcontext_t;
+
+typedef struct ucontext {
+ uint64_t uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ // Other fields are not used by V8, don't define them here.
+} ucontext_t;
+enum { REG_RBP = 10, REG_RSP = 15, REG_RIP = 16 };
#endif
#endif // V8_OS_ANDROID && !defined(__BIONIC_HAVE_UCONTEXT_T)
--
--
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