www/firefox-esr: revert r522464 to improve stability

Upstream adopted memfd_create instead which requires FreeBSD >= 13.
Having ESR behave differently complicates maintenance, so drop
SHM_ANON for now.

PR:		243252

1 files changed, 0 insertions, 80 deletions

diff --git a/www/firefox-esr/files/patch-bug1550891 b/www/firefox-esr/files/patch-bug1550891
deleted file mode 100644
index 7162795f7313..000000000000
--- a/www/firefox-esr/files/patch-bug1550891
+++ /dev/null
@@ -1,80 +0,0 @@
-commit 965eb33c5e86
-Author: Greg V <greg@unrelenting.technology>
-Date:   Wed Jan 8 15:06:00 2020 -0800
-
-    Bug 1550891 - re-add SHM_ANON support in IPC shared memory, freezing via capabilities
----
- config/system-headers.mozbuild               |  1 +
- ipc/chromium/src/base/shared_memory_posix.cc | 20 +++++++++++++++++---
- 2 files changed, 18 insertions(+), 3 deletions(-)
-
-diff --git config/system-headers.mozbuild config/system-headers.mozbuild
-index 88afca1070f86..beff3e2542c9f 100644
---- config/system-headers.mozbuild
-+++ config/system-headers.mozbuild
-@@ -816,6 +816,7 @@ system_headers = [
-     'sys/bitypes.h',
-     'sys/byteorder.h',
-     'syscall.h',
-+    'sys/capsicum.h',
-     'sys/cdefs.h',
-     'sys/cfgodm.h',
-     'sys/elf.h',
-diff --git ipc/chromium/src/base/shared_memory_posix.cc ipc/chromium/src/base/shared_memory_posix.cc
-index 0be9cce0b4bed..89e67483e4c16 100644
---- ipc/chromium/src/base/shared_memory_posix.cc
-+++ ipc/chromium/src/base/shared_memory_posix.cc
-@@ -16,6 +16,10 @@
- #  include "mozilla/Ashmem.h"
- #endif
- 
-+#ifdef __FreeBSD__
-+#  include <sys/capsicum.h>
-+#endif
-+
- #include "base/eintr_wrapper.h"
- #include "base/logging.h"
- #include "base/string_util.h"
-@@ -77,7 +81,7 @@ SharedMemoryHandle SharedMemory::NULLHandle() { return SharedMemoryHandle(); }
- 
- // static
- bool SharedMemory::AppendPosixShmPrefix(std::string* str, pid_t pid) {
--#if defined(ANDROID)
-+#if defined(ANDROID) || defined(__FreeBSD__)
-   return false;
- #else
-   *str += '/';
-@@ -103,7 +107,7 @@ bool SharedMemory::AppendPosixShmPrefix(std::string* str, pid_t pid) {
-   // enough for this.
-   StringAppendF(str, "org.mozilla.ipc.%d.", static_cast<int>(pid));
-   return true;
--#endif    // !ANDROID
-+#endif    // !ANDROID && !__FreeBSD__
- }
- 
- bool SharedMemory::CreateInternal(size_t size, bool freezeable) {
-@@ -125,6 +129,9 @@ bool SharedMemory::CreateInternal(size_t size, bool freezeable) {
-     return false;
-   }
-   needs_truncate = false;
-+#elif defined(__FreeBSD__)
-+  // FreeBSD supports anonymous shm_open
-+  fd.reset(shm_open(SHM_ANON, O_RDWR, 0600));
- #else
-   // Generic Unix: shm_open + shm_unlink
-   do {
-@@ -224,6 +231,14 @@ bool SharedMemory::ReadOnlyCopy(SharedMemory* ro_out) {
-     return false;
-   }
-   ro_file = mapped_file_;
-+#elif defined(__FreeBSD__)
-+  cap_rights_t rights;
-+  cap_rights_init(&rights, CAP_MMAP_R);
-+  if (cap_rights_limit(mapped_file_, &rights) != 0) {
-+    CHROMIUM_LOG(WARNING) << "failed to freeze shm: " << strerror(errno);
-+    return false;
-+  }
-+  ro_file = mapped_file_;
- #else
-   DCHECK(frozen_file_ >= 0);
-   DCHECK(mapped_file_ >= 0);