https://sourceware.org/bugzilla/show_bug.cgi?id=30623
Bug ID: 30623 Summary: objcopy --set-section-flags: support toggling a flag Product: binutils Version: unspecified Status: NEW Severity: normal Priority: P2 Component: binutils Assignee: unassigned at sourceware dot org Reporter: i at maskray dot me Target Milestone: --- It will be more convenient if --set-section-flags supports toggling a flag, instead of specifying the full set of flags, e.g. --set-section-flags .foo=-alloc --set-section-flags .foo=-readonly --set-section-flags .foo=+readonly The lack of toggling flags is currently not so cumbersome because most ELF sections only use "alloc" and "readonly". However, if we consider more flags, e.g. "exclude", "large" (https://sourceware.org/bugzilla/show_bug.cgi?id=30592), the lack of toggling flags is quite inconvenient. For example, if we want to add SHF_X86_64_LARGE to large data sections, we need to figure out whether "readonly" is set. --set-section-flags .ldata=alloc,large --set-section-flags .lrodata=alloc,readonly,large It will be more convenient if we can just use --set-section-flags .ldata=+large --set-section-flags .lrodata=+large Candidate syntax: the right hand side of `=` can use one of the two forms: * comma separated flags, e.g. alloc,large * comma separated + flags and - flags, e.g. -alloc,+readonly Other forms like -alloc,readonly probably should be rejected. -- You are receiving this mail because: You are on the CC list for the bug.