63 lines
2.6 KiB
Diff
63 lines
2.6 KiB
Diff
|
From c3476c3207efef576a185a047e6596b3b0cbcb42 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Tzu-ping Chung <uranusjr@gmail.com>
|
||
|
|
Date: Wed, 20 Apr 2022 10:00:07 +0800
|
||
|
|
Subject: [PATCH 1/2] Correctly parse ELF for musllinux on Big Endian
|
||
|
|
|
||
|
|
---
|
||
|
|
packaging/_musllinux.py | 8 +++++---
|
||
|
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/packaging/_musllinux.py b/packaging/_musllinux.py
|
||
|
|
index 8ac3059b..d5d3e044 100644
|
||
|
|
--- a/packaging/_musllinux.py
|
||
|
|
+++ b/packaging/_musllinux.py
|
||
|
|
@@ -39,9 +39,11 @@ def _parse_ld_musl_from_elf(f: IO[bytes]) -> Optional[str]:
|
||
|
|
# p_fmt: Format for section header.
|
||
|
|
# p_idx: Indexes to find p_type, p_offset, and p_filesz.
|
||
|
|
e_fmt, p_fmt, p_idx = {
|
||
|
|
- 1: ("IIIIHHH", "IIIIIIII", (0, 1, 4)), # 32-bit.
|
||
|
|
- 2: ("QQQIHHH", "IIQQQQQQ", (0, 2, 5)), # 64-bit.
|
||
|
|
- }[ident[4]]
|
||
|
|
+ (1, 1): ("<IIIIHHH", "<IIIIIIII", (0, 1, 4)), # 32-bit LSB.
|
||
|
|
+ (1, 2): (">IIIIHHH", ">IIIIIIII", (0, 1, 4)), # 32-bit MSB.
|
||
|
|
+ (2, 1): ("<QQQIHHH", "<IIQQQQQQ", (0, 2, 5)), # 64-bit LSB.
|
||
|
|
+ (2, 2): (">QQQIHHH", ">IIQQQQQQ", (0, 2, 5)), # 64-bit MSB.
|
||
|
|
+ }[(ident[4], ident[5])]
|
||
|
|
except KeyError:
|
||
|
|
return None
|
||
|
|
else:
|
||
|
|
|
||
|
|
From a339dd3374b334a1a999481f3014f68a7389dacc Mon Sep 17 00:00:00 2001
|
||
|
|
From: Tzu-ping Chung <uranusjr@gmail.com>
|
||
|
|
Date: Sun, 29 May 2022 11:55:30 +0800
|
||
|
|
Subject: [PATCH 2/2] Always use LSB to parse binary in tests
|
||
|
|
|
||
|
|
---
|
||
|
|
tests/test_musllinux.py | 9 +++++----
|
||
|
|
1 file changed, 5 insertions(+), 4 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/tests/test_musllinux.py b/tests/test_musllinux.py
|
||
|
|
index d2c87ca1..2623bdbc 100644
|
||
|
|
--- a/tests/test_musllinux.py
|
||
|
|
+++ b/tests/test_musllinux.py
|
||
|
|
@@ -101,14 +101,15 @@ def test_parse_ld_musl_from_elf_no_interpreter_section():
|
||
|
|
with BIN_MUSL_X86_64.open("rb") as f:
|
||
|
|
data = f.read()
|
||
|
|
|
||
|
|
- # Change all sections to *not* PT_INTERP.
|
||
|
|
- unpacked = struct.unpack("16BHHIQQQIHHH", data[:58])
|
||
|
|
+ # Change all sections to *not* PT_INTERP. We are explicitly using LSB rules
|
||
|
|
+ # because the binaries are in LSB.
|
||
|
|
+ unpacked = struct.unpack("<16BHHIQQQIHHH", data[:58])
|
||
|
|
*_, e_phoff, _, _, _, e_phentsize, e_phnum = unpacked
|
||
|
|
for i in range(e_phnum + 1):
|
||
|
|
sb = e_phoff + e_phentsize * i
|
||
|
|
se = sb + 56
|
||
|
|
- section = struct.unpack("IIQQQQQQ", data[sb:se])
|
||
|
|
- data = data[:sb] + struct.pack("IIQQQQQQ", 0, *section[1:]) + data[se:]
|
||
|
|
+ section = struct.unpack("<IIQQQQQQ", data[sb:se])
|
||
|
|
+ data = data[:sb] + struct.pack("<IIQQQQQQ", 0, *section[1:]) + data[se:]
|
||
|
|
|
||
|
|
assert _parse_ld_musl_from_elf(io.BytesIO(data)) is None
|
||
|
|
|