support setting of default thread stack size via PT_GNU_STACK header

[musl] / src / env / __init_tls.c

diff --git a/src/env/__init_tls.c b/src/env/__init_tls.c
index e022424..96d0e28 100644 (file)
--- a/src/env/__init_tls.c
+++ b/src/env/__init_tls.c
@@ -90,6 +90,11 @@ static void static_init_tls(size_t *aux)
                        base = (size_t)_DYNAMIC - phdr->p_vaddr;
                if (phdr->p_type == PT_TLS)
                        tls_phdr = phdr;
+               if (phdr->p_type == PT_GNU_STACK &&
+                   phdr->p_memsz > __default_stacksize)
+                       __default_stacksize =
+                               phdr->p_memsz < DEFAULT_STACK_MAX ?
+                               phdr->p_memsz : DEFAULT_STACK_MAX;
        }
 
        if (tls_phdr) {