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Code Issues Releases Activity

deps: make V8 compilable with older glibc

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Remove call to `memfd_create`.
The function that references it is only used for V8 testing.

PR-URL: https://github.com/nodejs/node/pull/42657
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
This commit is contained in:
Michaël Zasso 2022-03-18 14:20:00 +01:00
parent 5820d145ad
commit 421fd079a2
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GPG Key ID: 770F7A9A5AE15600
2 changed files with 1 additions and 19 deletions
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2
common.gypi
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@ -36,7 +36,7 @@
# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.6',
'v8_embedder_string': '-node.7',
##### V8 defaults for Node.js #####

18
deps/v8/src/base/platform/platform-posix.cc vendored
View File

@ -581,25 +581,7 @@ void OS::FreeAddressSpaceReservation(AddressSpaceReservation reservation) {
// Need to disable CFI_ICALL due to the indirect call to memfd_create.
DISABLE_CFI_ICALL
PlatformSharedMemoryHandle OS::CreateSharedMemoryHandleForTesting(size_t size) {
#if V8_OS_LINUX && !V8_OS_ANDROID
// Use memfd_create if available, otherwise mkstemp.
using memfd_create_t = int (*)(const char*, unsigned int);
memfd_create_t memfd_create =
reinterpret_cast<memfd_create_t>(dlsym(RTLD_DEFAULT, "memfd_create"));
int fd = -1;
if (memfd_create) {
fd = memfd_create("V8MemFDForTesting", MFD_CLOEXEC);
} else {
char filename[] = "/tmp/v8_tmp_file_for_testing_XXXXXX";
fd = mkstemp(filename);
if (fd != -1) CHECK_EQ(0, unlink(filename));
}
if (fd == -1) return kInvalidSharedMemoryHandle;
CHECK_EQ(0, ftruncate(fd, size));
return SharedMemoryHandleFromFileDescriptor(fd);
#else
return kInvalidSharedMemoryHandle;
#endif
}
// static