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https://github.com/dynup/kpatch
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fffbb85b81
Deal with a special case where gcc needs a pointer to the address at the end of a data section. This is usually used with a compare instruction to determine when to end a loop. The code doesn't actually dereference the pointer so this is "normal" and we just replace the section reference with a reference to the last symbol in the section. Note that this only catches the issue when it happens at the end of a section. It can also happen in the middle of a section. In that case, the wrong symbol will be associated with the reference. But that's ok because: 1) This situation only occurs when gcc is trying to get the address of the symbol, not the contents of its data; and 2) Because kpatch doesn't allow data sections to change, &(var1+sizeof(var1)) will always be the same as &var2. Fixes: #553 |
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| .. | ||
| insn | ||
| create-diff-object.c | ||
| kpatch-build | ||
| kpatch-gcc | ||
| list.h | ||
| lookup.c | ||
| lookup.h | ||
| Makefile | ||