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8049367: Modular Run-Time Images

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Co-authored-by: Alan Bateman <alan.bateman@oracle.com>
Co-authored-by: Alex Buckley <alex.buckley@oracle.com>
Co-authored-by: Bradford Wetmore <bradford.wetmore@oracle.com>
Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com>
Co-authored-by: James Laskey <james.laskey@oracle.com>
Co-authored-by: Jonathan Gibbons <jonathan.gibbons@oracle.com>
Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Magnus Ihse Bursie <magnus.ihse.bursie@oracle.com>
Co-authored-by: Mandy Chung <mandy.chung@oracle.com>
Co-authored-by: Mark Reinhold <mark.reinhold@oracle.com>
Co-authored-by: Paul Sandoz <paul.sandoz@oracle.com>
Co-authored-by: Sundararajan Athijegannathan <sundararajan.athijegannathan@oracle.com>
Reviewed-by: chegar, dfuchs, ihse, joehw, mullan, psandoz, wetmore
This commit is contained in:
Chris Hegarty 2014-12-03 14:21:14 +00:00
parent 785151164a
commit 393a39afe3
19 changed files with 944 additions and 146 deletions
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15
hotspot/src/os/linux/vm/os_linux.cpp
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@ -337,15 +337,13 @@ void os::init_system_properties_values() {
// Base path of extensions installed on the system.
#define SYS_EXT_DIR "/usr/java/packages"
#define EXTENSIONS_DIR "/lib/ext"
#define ENDORSED_DIR "/lib/endorsed"
// Buffer that fits several sprintfs.
// Note that the space for the colon and the trailing null are provided
// by the nulls included by the sizeof operator.
const size_t bufsize =
MAX3((size_t)MAXPATHLEN, // For dll_dir & friends.
(size_t)MAXPATHLEN + sizeof(EXTENSIONS_DIR) + sizeof(SYS_EXT_DIR) + sizeof(EXTENSIONS_DIR), // extensions dir
(size_t)MAXPATHLEN + sizeof(ENDORSED_DIR)); // endorsed dir
MAX2((size_t)MAXPATHLEN, // For dll_dir & friends.
(size_t)MAXPATHLEN + sizeof(EXTENSIONS_DIR) + sizeof(SYS_EXT_DIR) + sizeof(EXTENSIONS_DIR)); // extensions dir
char *buf = (char *)NEW_C_HEAP_ARRAY(char, bufsize, mtInternal);
// sysclasspath, java_home, dll_dir
@ -410,16 +408,11 @@ void os::init_system_properties_values() {
sprintf(buf, "%s" EXTENSIONS_DIR ":" SYS_EXT_DIR EXTENSIONS_DIR, Arguments::get_java_home());
Arguments::set_ext_dirs(buf);
// Endorsed standards default directory.
sprintf(buf, "%s" ENDORSED_DIR, Arguments::get_java_home());
Arguments::set_endorsed_dirs(buf);
FREE_C_HEAP_ARRAY(char, buf, mtInternal);
#undef DEFAULT_LIBPATH
#undef SYS_EXT_DIR
#undef EXTENSIONS_DIR
#undef ENDORSED_DIR
}
////////////////////////////////////////////////////////////////////////////////
@ -3783,6 +3776,10 @@ size_t os::read(int fd, void *buf, unsigned int nBytes) {
return ::read(fd, buf, nBytes);
}
size_t os::read_at(int fd, void *buf, unsigned int nBytes, jlong offset) {
return ::pread(fd, buf, nBytes, offset);
}
// Short sleep, direct OS call.
//
// Note: certain versions of Linux CFS scheduler (since 2.6.23) do not guarantee