Mercurial > hg > truffle
diff src/os/linux/vm/os_linux.cpp @ 1642:0e7d2a08b605
6967423: Hotspot support for modules image
Summary: Add hotspot support for modules image
Reviewed-by: acorn
author | mchung |
---|---|
date | Wed, 07 Jul 2010 15:35:58 -0700 |
parents | c18cbe5936b8 |
children | 126ea7725993 |
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--- a/src/os/linux/vm/os_linux.cpp Wed Jul 07 14:12:08 2010 -0400 +++ b/src/os/linux/vm/os_linux.cpp Wed Jul 07 15:35:58 2010 -0700 @@ -2079,9 +2079,9 @@ static char saved_jvm_path[MAXPATHLEN] = {0}; // Find the full path to the current module, libjvm.so or libjvm_g.so -void os::jvm_path(char *buf, jint len) { +void os::jvm_path(char *buf, jint buflen) { // Error checking. - if (len < MAXPATHLEN) { + if (buflen < MAXPATHLEN) { assert(false, "must use a large-enough buffer"); buf[0] = '\0'; return; @@ -2117,6 +2117,9 @@ // Look for JAVA_HOME in the environment. char* java_home_var = ::getenv("JAVA_HOME"); if (java_home_var != NULL && java_home_var[0] != 0) { + char* jrelib_p; + int len; + // Check the current module name "libjvm.so" or "libjvm_g.so". p = strrchr(buf, '/'); assert(strstr(p, "/libjvm") == p, "invalid library name"); @@ -2124,14 +2127,24 @@ if (realpath(java_home_var, buf) == NULL) return; - sprintf(buf + strlen(buf), "/jre/lib/%s", cpu_arch); + + // determine if this is a legacy image or modules image + // modules image doesn't have "jre" subdirectory + len = strlen(buf); + jrelib_p = buf + len; + snprintf(jrelib_p, buflen-len, "/jre/lib/%s", cpu_arch); + if (0 != access(buf, F_OK)) { + snprintf(jrelib_p, buflen-len, "/lib/%s", cpu_arch); + } + if (0 == access(buf, F_OK)) { // Use current module name "libjvm[_g].so" instead of // "libjvm"debug_only("_g")".so" since for fastdebug version // we should have "libjvm.so" but debug_only("_g") adds "_g"! // It is used when we are choosing the HPI library's name // "libhpi[_g].so" in hpi::initialize_get_interface(). - sprintf(buf + strlen(buf), "/hotspot/libjvm%s.so", p); + len = strlen(buf); + snprintf(buf + len, buflen-len, "/hotspot/libjvm%s.so", p); } else { // Go back to path of .so if (realpath(dli_fname, buf) == NULL)