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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-07-09 13:34:38 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-07-31 17:02:05 -0300 |
| commit | 8d2a331b64c8d299d11826058c43d29643cf6b86 (patch) | |
| tree | 08add1295e872559161b7113929b92de759a203c | |
| parent | 6a785f1dcf4e63e169f0214dc3bbda962066fde9 (diff) | |
| download | glibc-8d2a331b64c8d299d11826058c43d29643cf6b86.zip glibc-8d2a331b64c8d299d11826058c43d29643cf6b86.tar.gz glibc-8d2a331b64c8d299d11826058c43d29643cf6b86.tar.bz2 | |
elf: Also parse gnu properties for static linked binaries
So the static binary can opt-out of memory sealing.
Checked on x86_64-linux-gnu.
| -rw-r--r-- | elf/dl-support.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/elf/dl-support.c b/elf/dl-support.c index 8290a38..a02ae71 100644 --- a/elf/dl-support.c +++ b/elf/dl-support.c @@ -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); |