src/os/linux/vm/os_linux.cpp
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rev 7258 : 8064611: AARCH64: Changes to HotSpot shared code
Summary: Everything except cpu/ and os_cpu/.
Reviewed-by: kvn
@@ -273,10 +273,12 @@
#ifdef _LP64
static char cpu_arch[] = "sparcv9";
#else
static char cpu_arch[] = "sparc";
#endif
+#elif defined(AARCH64)
+static char cpu_arch[] = "aarch64";
#else
#error Add appropriate cpu_arch setting
#endif
@@ -1924,10 +1926,13 @@
} arch_t;
#ifndef EM_486
#define EM_486 6 /* Intel 80486 */
#endif
+#ifndef EM_AARCH64
+ #define EM_AARCH64 183 /* ARM AARCH64 */
+#endif
static const arch_t arch_array[]={
{EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
{EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
{EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"},
@@ -1945,11 +1950,12 @@
{EM_S390, EM_S390, ELFCLASSNONE, ELFDATA2MSB, (char*)"IBM System/390"},
{EM_ALPHA, EM_ALPHA, ELFCLASS64, ELFDATA2LSB, (char*)"Alpha"},
{EM_MIPS_RS3_LE, EM_MIPS_RS3_LE, ELFCLASS32, ELFDATA2LSB, (char*)"MIPSel"},
{EM_MIPS, EM_MIPS, ELFCLASS32, ELFDATA2MSB, (char*)"MIPS"},
{EM_PARISC, EM_PARISC, ELFCLASS32, ELFDATA2MSB, (char*)"PARISC"},
- {EM_68K, EM_68K, ELFCLASS32, ELFDATA2MSB, (char*)"M68k"}
+ {EM_68K, EM_68K, ELFCLASS32, ELFDATA2MSB, (char*)"M68k"},
+ {EM_AARCH64, EM_AARCH64, ELFCLASS64, ELFDATA2LSB, (char*)"AARCH64"},
};
#if (defined IA32)
static Elf32_Half running_arch_code=EM_386;
#elif (defined AMD64)
@@ -1976,13 +1982,15 @@
static Elf32_Half running_arch_code=EM_PARISC;
#elif (defined MIPS)
static Elf32_Half running_arch_code=EM_MIPS;
#elif (defined M68K)
static Elf32_Half running_arch_code=EM_68K;
+#elif (defined AARCH64)
+ static Elf32_Half running_arch_code=EM_AARCH64;
#else
#error Method os::dll_load requires that one of following is defined:\
- IA32, AMD64, IA64, __sparc, __powerpc__, ARM, S390, ALPHA, MIPS, MIPSEL, PARISC, M68K
+ IA32, AMD64, IA64, __sparc, __powerpc__, ARM, S390, ALPHA, MIPS, MIPSEL, PARISC, M68K, AARCH64
#endif
// Identify compatability class for VM's architecture and library's architecture
// Obtain string descriptions for architectures
@@ -3305,11 +3313,11 @@
// format has been changed), we'll use the largest page size supported by
// the processor.
#ifndef ZERO
large_page_size = IA32_ONLY(4 * M) AMD64_ONLY(2 * M) IA64_ONLY(256 * M) SPARC_ONLY(4 * M)
- ARM_ONLY(2 * M) PPC_ONLY(4 * M);
+ ARM_ONLY(2 * M) PPC_ONLY(4 * M) AARCH64_ONLY(2 * M);
#endif // ZERO
FILE *fp = fopen("/proc/meminfo", "r");
if (fp) {
while (!feof(fp)) {
@@ -5868,15 +5876,15 @@
extern char** environ;
#ifndef __NR_fork
- #define __NR_fork IA32_ONLY(2) IA64_ONLY(not defined) AMD64_ONLY(57)
+ #define __NR_fork IA32_ONLY(2) IA64_ONLY(not defined) AMD64_ONLY(57) AARCH64_ONLY(1079)
#endif
#ifndef __NR_execve
- #define __NR_execve IA32_ONLY(11) IA64_ONLY(1033) AMD64_ONLY(59)
+ #define __NR_execve IA32_ONLY(11) IA64_ONLY(1033) AMD64_ONLY(59) AARCH64_ONLY(221)
#endif
// Run the specified command in a separate process. Return its exit value,
// or -1 on failure (e.g. can't fork a new process).
// Unlike system(), this function can be called from signal handler. It