chromium: add musl patches from Alpine; this now works correctly.

srcpkgs/chromium/files/musl-patches/musl-fixes.patch

@@ -94,6 +94,17 @@
  // This adjusts /proc/process/oom_score_adj so the Linux OOM killer
  // will prefer certain process types over others. The range for the
  // adjustment is [-1000, 1000], with [0, 1000] being user accessible.
+--- ./sandbox/linux/seccomp-bpf/trap.cc.orig
++++ ./sandbox/linux/seccomp-bpf/trap.cc
+@@ -156,7 +156,7 @@
+   // most versions of glibc don't include this information in siginfo_t. So,
+   // we need to explicitly copy it into a arch_sigsys structure.
+   struct arch_sigsys sigsys;
+-  memcpy(&sigsys, &info->_sifields, sizeof(sigsys));
++  memcpy(&sigsys, &info->__si_fields, sizeof(sigsys));
+ 
+ #if defined(__mips__)
+   // When indirect syscall (syscall(__NR_foo, ...)) is made on Mips, the
 --- ./net/dns/dns_config_service_posix.cc.orig
 +++ ./net/dns/dns_config_service_posix.cc
 @@ -116,7 +116,7 @@
@@ -195,21 +206,9 @@
  
  #include "base/posix/eintr_wrapper.h"
  
---- sandbox/linux/seccomp-bpf/trap.cc.orig	2015-12-04 15:29:27.234784177 +0100
-+++ sandbox/linux/seccomp-bpf/trap.cc	2015-12-04 15:30:39.449405781 +0100
-@@ -165,7 +165,9 @@ void Trap::SigSys(int nr, LinuxSigInfo*
-   // most versions of glibc don't include this information in siginfo_t. So,
-   // we need to explicitly copy it into a arch_sigsys structure.
-   struct arch_sigsys sigsys;
-+#if defined(__native_client_nonsfi__)
-   memcpy(&sigsys, &info->_sifields, sizeof(sigsys));
-+#endif
- 
- #if defined(__mips__)
-   // When indirect syscall (syscall(__NR_foo, ...)) is made on Mips, the
---- base/logging.cc.orig	2015-12-05 09:56:03.395917935 +0100
-+++ base/logging.cc	2015-12-05 09:56:48.339334134 +0100
-@@ -494,7 +494,7 @@ LogMessage::LogMessage(const char* file,
+--- ./base/logging.cc.orig
++++ ./base/logging.cc
+@@ -494,7 +494,7 @@
  }
  
  LogMessage::~LogMessage() {

srcpkgs/chromium/files/musl-patches/musl-sandbox.patch

@@ -0,0 +1,66 @@
+--- ./sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
++++ ./sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
+@@ -114,23 +114,13 @@
+ // CLONE_VM, nor CLONE_THREAD, which includes all fork() implementations.
+ ResultExpr RestrictCloneToThreadsAndEPERMFork() {
+   const Arg<unsigned long> flags(0);
++  const int required = CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
++                       CLONE_THREAD | CLONE_SYSVSEM;
++  const int safe = CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID |
++                   CLONE_DETACHED;
++  const BoolExpr thread_clone_ok = (flags&~safe)==required;
+ 
+-  // TODO(mdempsky): Extend DSL to support (flags & ~mask1) == mask2.
+-  const uint64_t kAndroidCloneMask = CLONE_VM | CLONE_FS | CLONE_FILES |
+-                                     CLONE_SIGHAND | CLONE_THREAD |
+-                                     CLONE_SYSVSEM;
+-  const uint64_t kObsoleteAndroidCloneMask = kAndroidCloneMask | CLONE_DETACHED;
+-
+-  const uint64_t kGlibcPthreadFlags =
+-      CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_THREAD |
+-      CLONE_SYSVSEM | CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID;
+-  const BoolExpr glibc_test = flags == kGlibcPthreadFlags;
+-
+-  const BoolExpr android_test =
+-      AnyOf(flags == kAndroidCloneMask, flags == kObsoleteAndroidCloneMask,
+-            flags == kGlibcPthreadFlags);
+-
+-  return If(IsAndroid() ? android_test : glibc_test, Allow())
++  return If(thread_clone_ok, Allow())
+       .ElseIf((flags & (CLONE_VM | CLONE_THREAD)) == 0, Error(EPERM))
+       .Else(CrashSIGSYSClone());
+ }
+--- ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc.orig
++++ ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
+@@ -416,12 +416,12 @@
+ #endif
+     case __NR_epoll_create1:
+     case __NR_epoll_ctl:
++    case __NR_epoll_pwait:
+       return true;
+     default:
+ #if defined(__x86_64__)
+     case __NR_epoll_ctl_old:
+ #endif
+-    case __NR_epoll_pwait:
+ #if defined(__x86_64__)
+     case __NR_epoll_wait_old:
+ #endif
+--- ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc.orig
++++ ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
+@@ -494,6 +494,7 @@
+     case __NR_mlock:
+     case __NR_munlock:
+     case __NR_munmap:
++    case __NR_mremap:
+       return true;
+     case __NR_madvise:
+     case __NR_mincore:
+@@ -509,7 +510,6 @@
+     case __NR_modify_ldt:
+ #endif
+     case __NR_mprotect:
+-    case __NR_mremap:
+     case __NR_msync:
+     case __NR_munlockall:
+     case __NR_readahead:

srcpkgs/chromium/template

@@ -10,7 +10,7 @@ license="BSD"
 distfiles="https://commondatastorage.googleapis.com/chromium-browser-official/${pkgname}-${version}.tar.xz"
 checksum=41840925d3769555ce4ebd780ee0dc6789ffae27b1684006c9b543bcaa35bbd2
 
-only_for_archs="i686 x86_64"
+only_for_archs="i686 x86_64 x86_64-musl"
 lib32disabled=yes
 nodebug=yes