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This commit is contained in:
Serguei Spitsyn 2017-02-13 22:43:50 +00:00
commit 75bb00fb10
3 changed files with 29 additions and 4 deletions
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2
hotspot/src/jdk.hotspot.agent/linux/native/libsaproc/elfmacros.h
View File

@ -33,6 +33,7 @@
#define ELF_NHDR Elf64_Nhdr
#define ELF_DYN Elf64_Dyn
#define ELF_ADDR Elf64_Addr
#define ELF_AUXV Elf64_auxv_t
#define ELF_ST_TYPE ELF64_ST_TYPE
@ -45,6 +46,7 @@
#define ELF_NHDR Elf32_Nhdr
#define ELF_DYN Elf32_Dyn
#define ELF_ADDR Elf32_Addr
#define ELF_AUXV Elf32_auxv_t
#define ELF_ST_TYPE ELF32_ST_TYPE

25
hotspot/src/jdk.hotspot.agent/linux/native/libsaproc/ps_core.c
View File

@ -642,6 +642,18 @@ static bool core_handle_note(struct ps_prochandle* ph, ELF_PHDR* note_phdr) {
if (core_handle_prstatus(ph, descdata, notep->n_descsz) != true) {
return false;
}
} else if (notep->n_type == NT_AUXV) {
// Get first segment from entry point
ELF_AUXV *auxv = (ELF_AUXV *)descdata;
while (auxv->a_type != AT_NULL) {
if (auxv->a_type == AT_ENTRY) {
// Set entry point address to address of dynamic section.
// We will adjust it in read_exec_segments().
ph->core->dynamic_addr = auxv->a_un.a_val;
break;
}
auxv++;
}
}
p = descdata + ROUNDUP(notep->n_descsz, 4);
}
@ -832,7 +844,13 @@ static bool read_exec_segments(struct ps_prochandle* ph, ELF_EHDR* exec_ehdr) {
// from PT_DYNAMIC we want to read address of first link_map addr
case PT_DYNAMIC: {
ph->core->dynamic_addr = exec_php->p_vaddr;
if (exec_ehdr->e_type == ET_EXEC) {
ph->core->dynamic_addr = exec_php->p_vaddr;
} else { // ET_DYN
// dynamic_addr has entry point of executable.
// Thus we should substract it.
ph->core->dynamic_addr += exec_php->p_vaddr - exec_ehdr->e_entry;
}
print_debug("address of _DYNAMIC is 0x%lx\n", ph->core->dynamic_addr);
break;
}
@ -1030,8 +1048,9 @@ struct ps_prochandle* Pgrab_core(const char* exec_file, const char* core_file) {
goto err;
}
if (read_elf_header(ph->core->exec_fd, &exec_ehdr) != true || exec_ehdr.e_type != ET_EXEC) {
print_debug("executable file is not a valid ELF ET_EXEC file\n");
if (read_elf_header(ph->core->exec_fd, &exec_ehdr) != true ||
((exec_ehdr.e_type != ET_EXEC) && (exec_ehdr.e_type != ET_DYN))) {
print_debug("executable file is not a valid ELF file\n");
goto err;
}

6
hotspot/src/share/vm/ci/ciMethod.cpp
View File

@ -1428,8 +1428,12 @@ bool ciMethod::is_consistent_info(ciMethod* declared_method, ciMethod* resolved_
if (!invoke_through_mh_intrinsic) {
// Method name & descriptor should stay the same.
// Signatures may reference unloaded types and thus they may be not strictly equal.
ciSymbol* declared_signature = declared_method->signature()->as_symbol();
ciSymbol* resolved_signature = resolved_method->signature()->as_symbol();
return (declared_method->name()->equals(resolved_method->name())) &&
(declared_method->signature()->equals(resolved_method->signature()));
(declared_signature->equals(resolved_signature));
}
ciMethod* linker = declared_method;