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elf: Also parse gnu properties for static linked binaries

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So the static binary can opt-out of memory sealing.

Checked on x86_64-linux-gnu.
This commit is contained in:
Adhemerval Zanella 2024-07-09 13:34:38 -03:00
parent 6a785f1dcf
commit 8d2a331b64
1 changed files with 13 additions and 0 deletions
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13
elf/dl-support.c
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@ -45,6 +45,7 @@
#include <dl-find_object.h>
#include <array_length.h>
#include <dl-symbol-redir-ifunc.h>
#include <dl-prop.h>
#include <dl-mseal.h>
extern char *__progname;
@ -336,6 +337,18 @@ _dl_non_dynamic_init (void)
_dl_main_map.l_relro_size = ph->p_memsz;
break;
}
/* Process program headers again, but scan them backwards so
that PT_NOTE can be skipped if PT_GNU_PROPERTY exits. */
for (const ElfW(Phdr) *ph = &_dl_phdr[_dl_phnum]; ph != _dl_phdr; --ph)
switch (ph[-1].p_type)
{
case PT_NOTE:
_dl_process_pt_note (&_dl_main_map, -1, &ph[-1]);
break;
case PT_GNU_PROPERTY:
_dl_process_pt_gnu_property (&_dl_main_map, -1, &ph[-1]);
break;
}
call_function_static_weak (_dl_find_object_init);