518 lines
18 KiB
Diff
518 lines
18 KiB
Diff
--- old/make/ReleaseFile.gmk
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+++ new/make/ReleaseFile.gmk
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@@ -53,6 +53,7 @@
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$(call info-file-item, "JAVA_VERSION_DATE", "$(VERSION_DATE)")
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$(call info-file-item, "OS_NAME", "$(RELEASE_FILE_OS_NAME)")
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$(call info-file-item, "OS_ARCH", "$(RELEASE_FILE_OS_ARCH)")
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+ $(call info-file-item, "LIBC", "musl")
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endef
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# Param 1 - The file containing the MODULES list
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--- old/make/hotspot/lib/CompileJvm.gmk
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+++ new/make/hotspot/lib/CompileJvm.gmk
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@@ -140,6 +140,7 @@
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-DHOTSPOT_BUILD_USER='"$(USERNAME)"' \
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-DHOTSPOT_VM_DISTRO='"$(HOTSPOT_VM_DISTRO)"' \
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-DCPU='"$(OPENJDK_TARGET_CPU_VM_VERSION)"' \
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+ -DLIBC='"musl"' \
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#
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# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
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--- old/make/lib/CoreLibraries.gmk
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+++ new/make/lib/CoreLibraries.gmk
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@@ -340,6 +340,7 @@
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endif
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LIBJLI_CFLAGS += $(addprefix -I, $(LIBJLI_SRC_DIRS))
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+LIBJLI_CFLAGS += -DLIBC=\"musl\"
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ifneq ($(USE_EXTERNAL_LIBZ), true)
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LIBJLI_CFLAGS += $(ZLIB_CPPFLAGS)
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--- old/src/hotspot/os/linux/os_linux.cpp
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+++ new/src/hotspot/os/linux/os_linux.cpp
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@@ -100,7 +100,6 @@
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# include <string.h>
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# include <syscall.h>
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# include <sys/sysinfo.h>
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-# include <gnu/libc-version.h>
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# include <sys/ipc.h>
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# include <sys/shm.h>
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# include <link.h>
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@@ -524,6 +523,11 @@
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// detecting pthread library
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void os::Linux::libpthread_init() {
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+#if !defined(__GLIBC__) && !defined(__UCLIBC__)
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+ // Hard code Alpine Linux supported musl compatible settings
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+ os::Linux::set_glibc_version("glibc 2.9");
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+ os::Linux::set_libpthread_version("NPTL");
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+#else
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// Save glibc and pthread version strings.
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#if !defined(_CS_GNU_LIBC_VERSION) || \
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!defined(_CS_GNU_LIBPTHREAD_VERSION)
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@@ -541,6 +545,7 @@
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str = (char *)malloc(n, mtInternal);
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confstr(_CS_GNU_LIBPTHREAD_VERSION, str, n);
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os::Linux::set_libpthread_version(str);
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+#endif
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}
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/////////////////////////////////////////////////////////////////////////////
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@@ -2897,20 +2902,36 @@
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extern "C" JNIEXPORT void numa_warn(int number, char *where, ...) { }
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extern "C" JNIEXPORT void numa_error(char *where) { }
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+static void* dlvsym_if_available(void* handle, const char* name, const char* version) {
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+ typedef void* (*dlvsym_func_type)(void* handle, const char* name, const char* version);
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+ static dlvsym_func_type dlvsym_func;
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+ static bool initialized = false;
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+
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+ if (!initialized) {
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+ dlvsym_func = (dlvsym_func_type)dlsym(RTLD_NEXT, "dlvsym");
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+ initialized = true;
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+ }
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+
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+ if (dlvsym_func != NULL) {
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+ void *f = dlvsym_func(handle, name, version);
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+ if (f != NULL) {
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+ return f;
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+ }
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+ }
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+
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+ return dlsym(handle, name);
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+}
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+
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// Handle request to load libnuma symbol version 1.1 (API v1). If it fails
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// load symbol from base version instead.
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void* os::Linux::libnuma_dlsym(void* handle, const char *name) {
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- void *f = dlvsym(handle, name, "libnuma_1.1");
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- if (f == NULL) {
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- f = dlsym(handle, name);
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- }
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- return f;
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+ return dlvsym_if_available(handle, name, "libnuma_1.1");;
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}
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// Handle request to load libnuma symbol version 1.2 (API v2) only.
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// Return NULL if the symbol is not defined in this particular version.
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void* os::Linux::libnuma_v2_dlsym(void* handle, const char* name) {
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- return dlvsym(handle, name, "libnuma_1.2");
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+ return dlvsym_if_available(handle, name, "libnuma_1.2");
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}
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bool os::Linux::libnuma_init() {
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--- old/src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp
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+++ new/src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp
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@@ -73,9 +73,6 @@
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# include <pwd.h>
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# include <poll.h>
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# include <ucontext.h>
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-#ifndef AMD64
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-# include <fpu_control.h>
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-#endif
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#ifdef AMD64
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#define REG_SP REG_RSP
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--- old/src/hotspot/share/gc/shared/genCollectedHeap.cpp
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+++ new/src/hotspot/share/gc/shared/genCollectedHeap.cpp
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@@ -898,7 +898,7 @@
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static ScratchBlock *removeSmallestScratch(ScratchBlock **prev_ptr) {
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bool first = true;
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size_t min_size = 0; // "first" makes this conceptually infinite.
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- ScratchBlock **smallest_ptr, *smallest;
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+ ScratchBlock **smallest_ptr = NULL, *smallest;
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ScratchBlock *cur = *prev_ptr;
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while (cur) {
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assert(*prev_ptr == cur, "just checking");
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--- old/src/hotspot/share/runtime/vm_version.cpp
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+++ new/src/hotspot/share/runtime/vm_version.cpp
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@@ -260,7 +260,7 @@
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#endif
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#define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
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- " for " OS "-" CPU FLOAT_ARCH_STR \
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+ " for " OS "-" CPU FLOAT_ARCH_STR LIBC \
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" JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \
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" by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER
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--- old/src/hotspot/share/utilities/globalDefinitions_gcc.hpp
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+++ new/src/hotspot/share/utilities/globalDefinitions_gcc.hpp
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@@ -204,7 +204,7 @@
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#elif defined(__APPLE__)
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inline int g_isnan(double f) { return isnan(f); }
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#elif defined(LINUX) || defined(_ALLBSD_SOURCE)
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-inline int g_isnan(float f) { return isnanf(f); }
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+inline int g_isnan(float f) { return isnan(f); }
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inline int g_isnan(double f) { return isnan(f); }
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#else
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#error "missing platform-specific definition here"
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--- old/src/java.base/linux/native/libnet/linux_close.c
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+++ new/src/java.base/linux/native/libnet/linux_close.c
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@@ -60,7 +60,7 @@
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/*
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* Signal to unblock thread
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*/
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-static int sigWakeup = (__SIGRTMAX - 2);
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+static int sigWakeup;
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/*
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* fdTable holds one entry per file descriptor, up to a certain
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@@ -149,6 +149,7 @@
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/*
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* Setup the signal handler
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*/
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+ sigWakeup = SIGRTMAX - 2;
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sa.sa_handler = sig_wakeup;
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sa.sa_flags = 0;
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sigemptyset(&sa.sa_mask);
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--- old/src/java.base/unix/native/libjava/childproc.c
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+++ new/src/java.base/unix/native/libjava/childproc.c
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@@ -237,7 +237,13 @@
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{
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if (envp == NULL || (char **) envp == environ) {
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execvp(file, (char **) argv);
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- return;
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+ // ENOEXEC indicates that the file header was not recognized. The musl C
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+ // library does not implement the fallback to /bin/sh for that case, so fall
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+ // through to the code below which implements that fallback using
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+ // execve_with_shell_fallback.
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+ if (errno != ENOEXEC) {
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+ return;
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+ }
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}
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if (*file == '\0') {
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--- old/src/java.base/unix/native/libjava/jdk_util_md.h
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+++ new/src/java.base/unix/native/libjava/jdk_util_md.h
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@@ -37,7 +37,7 @@
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#define ISNAND(d) isnan(d)
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#elif defined(__linux__) || defined(_ALLBSD_SOURCE)
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#include <math.h>
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-#define ISNANF(f) isnanf(f)
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+#define ISNANF(f) isnan(f)
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#define ISNAND(d) isnan(d)
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#elif defined(_AIX)
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#include <math.h>
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--- old/src/java.base/unix/native/libjli/java_md_solinux.c
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+++ new/src/java.base/unix/native/libjli/java_md_solinux.c
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@@ -235,6 +235,39 @@
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char *dmllp = NULL;
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char *p; /* a utility pointer */
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+#ifdef __linux
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+#ifndef LIBC
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+#error "LIBC not set"
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+#endif
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+
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+ if (strcmp(LIBC, "musl") == 0) {
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+ /*
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+ * The musl library loader requires LD_LIBRARY_PATH to be set in
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+ * order to correctly resolve the dependency libjava.so has on libjvm.so.
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+ *
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+ * Specifically, it differs from glibc in the sense that even if
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+ * libjvm.so has already been loaded it will not be considered a
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+ * candidate for resolving the dependency unless the *full* path
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+ * of the already loaded library matches the dependency being loaded.
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+ *
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+ * libjvm.so is being loaded by the launcher using a long path to
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+ * dlopen, not just the basename of the library. Typically this
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+ * is something like "../lib/server/libjvm.so". However, if/when
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+ * libjvm.so later tries to dlopen libjava.so (which it does in
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+ * order to get access to a few functions implemented in
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+ * libjava.so) the musl loader will, as part of loading
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+ * dependent libraries, try to load libjvm.so using only its
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+ * basename "libjvm.so". Since this does not match the longer
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+ * path path it was first loaded with, the already loaded
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+ * library is not considered a candidate, and the loader will
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+ * instead look for libjvm.so elsewhere. If it's not in
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+ * LD_LIBRARY_PATH the dependency load will fail, and libjava.so
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+ * will therefore fail as well.
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+ */
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+ return JNI_TRUE;
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+ }
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+#endif
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+
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#ifdef AIX
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/* We always have to set the LIBPATH on AIX because ld doesn't support $ORIGIN. */
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return JNI_TRUE;
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--- old/src/java.base/unix/native/libnio/ch/NativeThread.c
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+++ new/src/java.base/unix/native/libnio/ch/NativeThread.c
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@@ -36,7 +36,7 @@
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#ifdef __linux__
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#include <pthread.h>
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/* Also defined in net/linux_close.c */
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- #define INTERRUPT_SIGNAL (__SIGRTMAX - 2)
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+ #define INTERRUPT_SIGNAL (SIGRTMAX - 2)
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#elif _AIX
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#include <pthread.h>
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/* Also defined in net/aix_close.c */
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--- old/src/java.desktop/unix/native/libawt_xawt/xawt/XToolkit.c
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+++ new/src/java.desktop/unix/native/libawt_xawt/xawt/XToolkit.c
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@@ -27,9 +27,6 @@
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#include <X11/Xutil.h>
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#include <X11/Xos.h>
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#include <X11/Xatom.h>
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-#ifdef __linux__
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-#include <execinfo.h>
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-#endif
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#include <jvm.h>
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#include <jni.h>
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@@ -786,26 +783,6 @@
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}
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return ret;
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}
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-
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-#ifdef __linux__
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-void print_stack(void)
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-{
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- void *array[10];
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- size_t size;
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- char **strings;
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- size_t i;
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-
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- size = backtrace (array, 10);
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- strings = backtrace_symbols (array, size);
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-
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- fprintf (stderr, "Obtained %zd stack frames.\n", size);
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-
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- for (i = 0; i < size; i++)
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- fprintf (stderr, "%s\n", strings[i]);
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-
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- free (strings);
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-}
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-#endif
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Window get_xawt_root_shell(JNIEnv *env) {
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static jclass classXRootWindow = NULL;
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--- old/src/jdk.jdwp.agent/share/native/libjdwp/util.h
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+++ new/src/jdk.jdwp.agent/share/native/libjdwp/util.h
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@@ -35,15 +35,15 @@
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#ifdef DEBUG
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/* Just to make sure these interfaces are not used here. */
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#undef free
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- #define free(p) Do not use this interface.
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+ #define free do_not_use_this_interface_free
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#undef malloc
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- #define malloc(p) Do not use this interface.
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+ #define malloc do_not_use_this_interface_malloc
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#undef calloc
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- #define calloc(p) Do not use this interface.
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+ #define calloc do_not_use_this_interface_calloc
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#undef realloc
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- #define realloc(p) Do not use this interface.
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+ #define realloc do_not_use_this_interface_realloc
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#undef strdup
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- #define strdup(p) Do not use this interface.
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+ #define strdup do_not_use_this_interface_strdup
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#endif
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#include "log_messages.h"
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--- old/test/hotspot/jtreg/runtime/StackGuardPages/exeinvoke.c
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+++ new/test/hotspot/jtreg/runtime/StackGuardPages/exeinvoke.c
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@@ -33,6 +33,7 @@
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#include <assert.h>
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#include <jni.h>
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+#include <jvm.h>
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#include <alloca.h>
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#include <signal.h>
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#include <string.h>
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@@ -91,6 +92,20 @@
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}
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}
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+int get_java_stacksize () {
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+ size_t stacksize;
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+ pthread_attr_t attr;
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+ JDK1_1InitArgs jdk_args;
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+
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+ jdk_args.version = JNI_VERSION_1_1;
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+ JNI_GetDefaultJavaVMInitArgs(&jdk_args);
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+ if (jdk_args.javaStackSize <= 0) {
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+ fprintf(stderr, "Test ERROR. Can't get a valid value for the default stacksize.\n");
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+ exit(7);
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+ }
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+ return jdk_args.javaStackSize;
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+}
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+
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void *run_java_overflow (void *p) {
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JNIEnv *env;
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jclass class_id;
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@@ -254,13 +269,19 @@
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exit(7);
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}
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+ int stack_size = get_java_stacksize();
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pthread_t thr;
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+ pthread_attr_t thread_attr;
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+ pthread_attr_init(&thread_attr);
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+ pthread_attr_setstacksize(&thread_attr, stack_size);
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+
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if (argc > 1 && strcmp(argv[1], "test_java_overflow") == 0) {
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printf("\nTesting JAVA_OVERFLOW\n");
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printf("Testing stack guard page behaviour for other thread\n");
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- pthread_create (&thr, NULL, run_java_overflow, NULL);
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+
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+ pthread_create (&thr, &thread_attr, run_java_overflow, NULL);
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pthread_join (thr, NULL);
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printf("Testing stack guard page behaviour for initial thread\n");
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@@ -273,7 +294,7 @@
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printf("\nTesting NATIVE_OVERFLOW\n");
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printf("Testing stack guard page behaviour for other thread\n");
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- pthread_create (&thr, NULL, run_native_overflow, NULL);
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+ pthread_create (&thr, &thread_attr, run_native_overflow, NULL);
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pthread_join (thr, NULL);
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printf("Testing stack guard page behaviour for initial thread\n");
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--- old/test/jdk/java/lang/ProcessBuilder/Basic.java
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+++ new/test/jdk/java/lang/ProcessBuilder/Basic.java
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@@ -389,8 +389,8 @@
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if (failed != 0) throw new Error("null PATH");
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} else if (action.equals("PATH search algorithm")) {
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equal(System.getenv("PATH"), "dir1:dir2:");
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- check(new File("/bin/true").exists());
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- check(new File("/bin/false").exists());
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+ check(new File(TrueExe.path()).exists());
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+ check(new File(FalseExe.path()).exists());
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String[] cmd = {"prog"};
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ProcessBuilder pb1 = new ProcessBuilder(cmd);
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ProcessBuilder pb2 = new ProcessBuilder(cmd);
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@@ -431,13 +431,13 @@
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checkPermissionDenied(pb);
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// continue searching if EACCES
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- copy("/bin/true", "dir2/prog");
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+ copy(TrueExe.path(), "dir2/prog");
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equal(run(pb).exitValue(), True.exitValue());
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new File("dir1/prog").delete();
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new File("dir2/prog").delete();
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new File("dir2/prog").mkdirs();
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- copy("/bin/true", "dir1/prog");
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+ copy(TrueExe.path(), "dir1/prog");
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equal(run(pb).exitValue(), True.exitValue());
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// Check empty PATH component means current directory.
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@@ -453,10 +453,10 @@
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pb.command(command);
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File prog = new File("./prog");
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// "Normal" binaries
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- copy("/bin/true", "./prog");
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+ copy(TrueExe.path(), "./prog");
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equal(run(pb).exitValue(),
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True.exitValue());
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- copy("/bin/false", "./prog");
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+ copy(FalseExe.path(), "./prog");
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equal(run(pb).exitValue(),
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False.exitValue());
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prog.delete();
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@@ -511,12 +511,12 @@
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new File("dir2/prog").delete();
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new File("prog").delete();
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new File("dir3").mkdirs();
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- copy("/bin/true", "dir1/prog");
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- copy("/bin/false", "dir3/prog");
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+ copy(TrueExe.path(), "dir1/prog");
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+ copy(FalseExe.path(), "dir3/prog");
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pb.environment().put("PATH","dir3");
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equal(run(pb).exitValue(), True.exitValue());
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- copy("/bin/true", "dir3/prog");
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- copy("/bin/false", "dir1/prog");
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+ copy(TrueExe.path(), "dir3/prog");
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+ copy(FalseExe.path(), "dir1/prog");
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equal(run(pb).exitValue(), False.exitValue());
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} finally {
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@@ -613,6 +613,13 @@
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new File("/bin/false").exists());
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}
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+ static class BusyBox {
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+ public static boolean is() { return is; }
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+ private static final boolean is =
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+ (! Windows.is() &&
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+ new File("/bin/busybox").exists());
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+ }
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+
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static class UnicodeOS {
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public static boolean is() { return is; }
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private static final String osName = System.getProperty("os.name");
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@@ -651,6 +658,45 @@
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}
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}
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+ // On alpine linux, /bin/true and /bin/false are just links to /bin/busybox.
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+ // Some tests copy /bin/true and /bin/false to files with a different filename.
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+ // However, copying the busbox executable into a file with a different name
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+ // won't result in the expected return codes. As workaround, we create
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+ // executable files that can be copied and produce the exepected return
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+ // values. We use this workaround, if we find the busybox executable.
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+
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+ private static class TrueExe {
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+ public static String path() { return path; }
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+ private static final String path = path0();
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+ private static String path0(){
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+ if (!BusyBox.is()) {
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+ return "/bin/true";
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+ }
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+ else {
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+ File trueExe = new File("true");
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+ setFileContents(trueExe, "#!/bin/true\n");
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+ trueExe.setExecutable(true);
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+ return trueExe.getAbsolutePath();
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+ }
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+ }
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+ }
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+
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+ private static class FalseExe {
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+ public static String path() { return path; }
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+ private static final String path = path0();
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+ private static String path0(){
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+ if (!BusyBox.is()) {
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+ return "/bin/false";
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+ }
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+ else {
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+ File falseExe = new File("false");
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+ setFileContents(falseExe, "#!/bin/false\n");
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+ falseExe.setExecutable(true);
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+ return falseExe.getAbsolutePath();
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+ }
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+ }
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+ }
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+
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static class EnglishUnix {
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private static final Boolean is =
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(! Windows.is() && isEnglish("LANG") && isEnglish("LC_ALL"));
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@@ -1954,7 +2000,7 @@
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//----------------------------------------------------------------
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try {
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new File("suBdiR").mkdirs();
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- copy("/bin/true", "suBdiR/unliKely");
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+ copy(TrueExe.path(), "suBdiR/unliKely");
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final ProcessBuilder pb =
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new ProcessBuilder(new String[]{"unliKely"});
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pb.environment().put("PATH", "suBdiR");
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--- old/test/jdk/java/lang/ProcessHandle/InfoTest.java
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+++ new/test/jdk/java/lang/ProcessHandle/InfoTest.java
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@@ -298,7 +298,14 @@
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}
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if (info.command().isPresent()) {
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String command = info.command().get();
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- String expected = Platform.isWindows() ? "sleep.exe" : "sleep";
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+ String expected = "sleep";
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+ if (Platform.isWindows()) {
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+ expected = "sleep.exe";
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+ } else if (new File("/bin/busybox").exists()) {
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+ // With busybox sleep is just a sym link to busybox.
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+ // The busbox executable is seen as ProcessHandle.Info command.
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+ expected = "busybox";
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+ }
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Assert.assertTrue(command.endsWith(expected), "Command: expected: \'" +
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expected + "\', actual: " + command);
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