archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-16 00:54:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8003850: add support for constants in stub code

Browse source 
Remember the code section and switch back to the proper one when adding constants.

Reviewed-by: twisti, kvn
This commit is contained in:
Goetz Lindenmaier 2012-11-27 17:41:38 -08:00 • committed by Vladimir Kozlov
parent 2d2532e740
commit 8e00acca17
3 changed files with 29 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

11
hotspot/src/share/vm/asm/codeBuffer.cpp
View file

@ -749,7 +749,18 @@ void CodeBuffer::relocate_code_to(CodeBuffer* dest) const {
// Make the new code copy use the old copy's relocations:
dest_cs->initialize_locs_from(cs);
}
// Do relocation after all sections are copied.
// This is necessary if the code uses constants in stubs, which are
// relocated when the corresponding instruction in the code (e.g., a
// call) is relocated. Stubs are placed behind the main code
// section, so that section has to be copied before relocating.
for (int n = (int) SECT_FIRST; n < (int)SECT_LIMIT; n++) {
// pull code out of each section
const CodeSection* cs = code_section(n);
if (cs->is_empty()) continue; // skip trivial section
CodeSection* dest_cs = dest->code_section(n);
{ // Repair the pc relative information in the code after the move
RelocIterator iter(dest_cs);
while (iter.next()) {