https://sourceware.org/bugzilla/show_bug.cgi?id=29256
--- Comment #2 from yuxuan He <1157401338 at qq dot com> --- (In reply to cvs-com...@gcc.gnu.org from comment #1) > The master branch has been updated by Alan Modra <amo...@sourceware.org>: > > https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git; > h=15797439805b1bb92c491b9c9a72500d93c0cb5b > > commit 15797439805b1bb92c491b9c9a72500d93c0cb5b > Author: Alan Modra <amo...@gmail.com> > Date: Fri Jun 17 17:25:53 2022 +0930 > > PR29256, memory leak in obj_elf_section_name > > When handling section names in quotes obj_elf_section_name calls > demand_copy_C_string, which puts the name on the gas notes obstack. > Such strings aren't usually freed, since obstack_free frees all more > recently allocated objects as well as its arg. When handling > non-quoted names, obj_elf_section_name mallocs the name. Due to the > mix of allocation strategies it isn't possible for callers to free > names, if that was desirable. Partially fix this by always creating > names on the obstack, which is more efficient anyway. (You still > can't obstack_free on error paths due to the xtensa > tc_canonicalize_section_name.) Also remove a couple of cases where > the name is dup'd for no good reason as far as I know. > > PR 29256 > * config/obj-elf.c (obj_elf_section_name): Create name on notes > obstack. > (obj_elf_attach_to_group): Don't strdup group name. > (obj_elf_section): Likewise. > (obj_elf_vendor_attribute): Use xmemdup0 rather than xstrndup. thank you！ -- You are receiving this mail because: You are on the CC list for the bug.
