riscv/musl - musl - Gitea: Git with a cup of tea

History

Rich Felker 9439ebd766 fix dynamic loader library mapping for nommu systems on linux/nommu, non-writable private mappings of files may actually use memory shared with other processes or the fs cache. the old nommu loader code (used when mmap with MAP_FIXED fails) simply wrote over top of the original file mapping, possibly clobbering this shared memory. no such breakage was observed in practice, but it should have been possible. the new code starts by mapping anonymous writable memory on archs that might support nommu, then maps load segments over top of it, falling back to read if MAP_FIXED fails. we use an anonymous map rather than a writable file map to avoid reading more data from disk than needed. since pages cannot be loaded lazily on fault, in case of large data/bss, mapping the full file may read a lot of data that will subsequently be thrown away when processing additional LOAD segments. as a result, we cannot skip the first LOAD segment when operating in this mode. these changes affect only non-FDPIC nommu support.		11 years ago
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aarch64	properly access mcontext_t program counter in cancellation handler	11 years ago
arm	explicitly assemble all arm asm sources as UAL	11 years ago
i386	properly access mcontext_t program counter in cancellation handler	11 years ago
microblaze	properly access mcontext_t program counter in cancellation handler	11 years ago
mips	properly access mcontext_t program counter in cancellation handler	11 years ago
or1k	properly access mcontext_t program counter in cancellation handler	11 years ago
powerpc	properly access mcontext_t program counter in cancellation handler	11 years ago
sh	fix dynamic loader library mapping for nommu systems	11 years ago
x32	properly access mcontext_t program counter in cancellation handler	11 years ago
x86_64	properly access mcontext_t program counter in cancellation handler	11 years ago