#include <sys/membarrier.h>
#include "pthread_impl.h"
#include "fork_impl.h"
-#include "libc.h"
#include "dynlink.h"
+static size_t ldso_page_size;
+#ifndef PAGE_SIZE
+#define PAGE_SIZE ldso_page_size
+#endif
+
+#include "libc.h"
+
#define malloc __libc_malloc
#define calloc __libc_calloc
#define realloc __libc_realloc
return find_sym2(dso, s, need_def, 0);
}
+static struct symdef get_lfs64(const char *name)
+{
+ const char *p;
+ static const char lfs64_list[] =
+ "aio_cancel\0aio_error\0aio_fsync\0aio_read\0aio_return\0"
+ "aio_suspend\0aio_write\0alphasort\0creat\0fallocate\0"
+ "fgetpos\0fopen\0freopen\0fseeko\0fsetpos\0fstat\0"
+ "fstatat\0fstatfs\0fstatvfs\0ftello\0ftruncate\0ftw\0"
+ "getdents\0getrlimit\0glob\0globfree\0lio_listio\0"
+ "lockf\0lseek\0lstat\0mkostemp\0mkostemps\0mkstemp\0"
+ "mkstemps\0mmap\0nftw\0open\0openat\0posix_fadvise\0"
+ "posix_fallocate\0pread\0preadv\0prlimit\0pwrite\0"
+ "pwritev\0readdir\0scandir\0sendfile\0setrlimit\0"
+ "stat\0statfs\0statvfs\0tmpfile\0truncate\0versionsort\0"
+ "__fxstat\0__fxstatat\0__lxstat\0__xstat\0";
+ size_t l;
+ char buf[16];
+ for (l=0; name[l]; l++) {
+ if (l >= sizeof buf) goto nomatch;
+ buf[l] = name[l];
+ }
+ if (!strcmp(name, "readdir64_r"))
+ return find_sym(&ldso, "readdir_r", 1);
+ if (l<2 || name[l-2]!='6' || name[l-1]!='4')
+ goto nomatch;
+ buf[l-=2] = 0;
+ for (p=lfs64_list; *p; p++) {
+ if (!strcmp(buf, p)) return find_sym(&ldso, buf, 1);
+ while (*p) p++;
+ }
+nomatch:
+ return (struct symdef){ 0 };
+}
+
static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stride)
{
unsigned char *base = dso->base;
def = (sym->st_info>>4) == STB_LOCAL
? (struct symdef){ .dso = dso, .sym = sym }
: find_sym(ctx, name, type==REL_PLT);
+ if (!def.sym) def = get_lfs64(name);
if (!def.sym && (sym->st_shndx != SHN_UNDEF
|| sym->st_info>>4 != STB_WEAK)) {
if (dso->lazy && (type==REL_PLT || type==REL_GOT)) {
static void do_relr_relocs(struct dso *dso, size_t *relr, size_t relr_size)
{
+ if (dso == &ldso) return; /* self-relocation was done in _dlstart */
unsigned char *base = dso->base;
size_t *reloc_addr;
for (; relr_size; relr++, relr_size-=sizeof(size_t))
ldso.phnum = ehdr->e_phnum;
ldso.phdr = laddr(&ldso, ehdr->e_phoff);
ldso.phentsize = ehdr->e_phentsize;
+ search_vec(auxv, &ldso_page_size, AT_PAGESZ);
kernel_mapped_dso(&ldso);
decode_dyn(&ldso);
size_t *ptr = (size_t *) app.dynv[i+1];
*ptr = (size_t)&debug;
}
+ if (app.dynv[i]==DT_DEBUG_INDIRECT_REL) {
+ size_t *ptr = (size_t *)((size_t)&app.dynv[i] + app.dynv[i+1]);
+ *ptr = (size_t)&debug;
+ }
}
/* This must be done before final relocations, since it calls