blob: 7c9f2dc5fc05abaf82f2e7b59704862b325c0aab (
plain)
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This is required to make the gcompat ELF interpreter stub work with some
packed binaries.
diff --git a/src/env/__init_tls.c b/src/env/__init_tls.c
index b125eb1..616c6a6 100644
--- a/src/env/__init_tls.c
+++ b/src/env/__init_tls.c
@@ -66,8 +66,10 @@ void *__copy_tls(unsigned char *mem)
}
#if ULONG_MAX == 0xffffffff
+typedef Elf32_Ehdr Ehdr;
typedef Elf32_Phdr Phdr;
#else
+typedef Elf64_Ehdr Ehdr;
typedef Elf64_Phdr Phdr;
#endif
@@ -77,15 +79,23 @@ extern const size_t _DYNAMIC[];
static void static_init_tls(size_t *aux)
{
unsigned char *p;
- size_t n;
+ size_t n, e;
Phdr *phdr, *tls_phdr=0;
size_t base = 0;
void *mem;
- for (p=(void *)aux[AT_PHDR],n=aux[AT_PHNUM]; n; n--,p+=aux[AT_PHENT]) {
+ if (aux[AT_BASE]) {
+ Ehdr *ehdr = (void *)aux[AT_BASE];
+ p = (unsigned char *)aux[AT_BASE] + ehdr->e_phoff;
+ n = ehdr->e_phnum;
+ e = ehdr->e_phentsize;
+ } else {
+ p = (void *)aux[AT_PHDR];
+ n = aux[AT_PHNUM];
+ e = aux[AT_PHENT];
+ }
+ for (; n; n--, p+=e) {
phdr = (void *)p;
- if (phdr->p_type == PT_PHDR)
- base = aux[AT_PHDR] - phdr->p_vaddr;
if (phdr->p_type == PT_DYNAMIC && _DYNAMIC)
base = (size_t)_DYNAMIC - phdr->p_vaddr;
if (phdr->p_type == PT_TLS)
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