diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/rtld.c | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index b7439b2e7b..bdd12b4f81 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -222,10 +222,6 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p, ElfW(Ehdr) *ehdr; ElfW(Phdr) *phdr; size_t cnt; - size_t tlssize = 0; - size_t tlsimagesize = 0; - const void *tlsimage = NULL; - void *tlsblock = NULL; dtv_t initdtv[2]; #endif @@ -261,23 +257,26 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p, for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) if (phdr[cnt].p_type == PT_TLS) { + void *tlsblock; size_t align = MAX (TLS_INIT_TCB_ALIGN, phdr[cnt].p_align); - tlssize = phdr[cnt].p_memsz; - tlsimagesize = phdr[cnt].p_filesz; - tlsimage = (void *) (bootstrap_map_p->l_addr + phdr[cnt].p_offset); + GL(dl_rtld_map).l_tls_blocksize = phdr[cnt].p_memsz; + GL(dl_rtld_map).l_tls_initimage_size = phdr[cnt].p_filesz; + GL(dl_rtld_map).l_tls_initimage = (void *) (bootstrap_map_p->l_addr + + phdr[cnt].p_offset); /* We can now allocate the initial TLS block. This can happen on the stack. We'll get the final memory later when we know all about the various objects loaded at startup time. */ # if TLS_TCB_AT_TP - tlsblock = alloca (roundup (tlssize, TLS_INIT_TCB_ALIGN) + tlsblock = alloca (roundup (GL(dl_rtld_map).l_tls_blocksize, + TLS_INIT_TCB_ALIGN) + TLS_INIT_TCB_SIZE + align); # elif TLS_DTV_AT_TP tlsblock = alloca (roundup (TLS_INIT_TCB_SIZE, phdr[cnt].p_align) - + tlssize + + GL(dl_rtld_map).l_tls_blocksize + align); # else /* In case a model with a different layout for the TCB and DTV @@ -295,24 +294,32 @@ _dl_start_final (void *arg, struct link_map *bootstrap_map_p, # if TLS_TCB_AT_TP initdtv[1].pointer = tlsblock; # elif TLS_DTV_AT_TP - GL(rtld_tlsoffset) = roundup (TLS_INIT_TCB_SIZE, phdr[cnt].p_align); - initdtv[1].pointer = (char *) tlsblock + GL(rtld_tlsoffset); + GL(dl_rtld_map).l_tls_offset = roundup (TLS_INIT_TCB_SIZE, + phdr[cnt].p_align); + initdtv[1].pointer = (char *) tlsblock + GL(dl_rtld_map).l_tls_offset); # else # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" # endif - memset (__mempcpy (initdtv[1].pointer, tlsimage, tlsimagesize), - '\0', tlssize - tlsimagesize); + memset (__mempcpy (initdtv[1].pointer, GL(dl_rtld_map).l_tls_initimage, + GL(dl_rtld_map).l_tls_initimage_size), + '\0', (GL(dl_rtld_map).l_tls_blocksize + - GL(dl_rtld_map).l_tls_initimage_size)); /* Initialize the thread pointer. */ # if TLS_TCB_AT_TP - GL(rtld_tlsoffset) = roundup (tlssize, TLS_INIT_TCB_ALIGN); - TLS_INIT_TP ((char *) tlsblock + GL(rtld_tlsoffset), initdtv); + GL(dl_rtld_map).l_tls_offset + = roundup (GL(dl_rtld_map).l_tls_blocksize, TLS_INIT_TCB_ALIGN); + TLS_INIT_TP ((char *) tlsblock + GL(dl_rtld_map).l_tls_offset, + initdtv); # elif TLS_DTV_AT_TP - TLS_INIT_TP (tlsblock, intidtv); + TLS_INIT_TP (tlsblock, initdtv); # else # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" # endif + /* So far this is module number one. */ + GL(dl_rtld_map).l_tls_modid = 1; + /* There can only be one PT_TLS entry. */ break; } |