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Output the architecture in the smoke test.

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The smoke test now reads the ELF header of the pgbackrest binary being tested and prints its machine architecture and endianness, e.g. "s390x (64-bit big-endian)", right after the user it runs as. This makes it easy to confirm which architecture is actually being exercised, which matters when a binary built for a foreign architecture is run under emulation.
This commit is contained in:
David Steele
2026-07-18 11:28:41 +07:00
parent 1055287f49
commit 084b202ca1
1 changed files with 26 additions and 1 deletions
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27
test/smoke.py
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@@ -460,6 +460,30 @@ def resolve_runner(verbose, user_name):
return Runner(verbose, uid=info.pw_uid, gid=info.pw_gid, user=info.pw_name)
####################################################################################################################################
# Read the machine architecture and endianness from an ELF binary. This confirms which architecture is actually being exercised,
# which matters when the binary is built for a foreign architecture and run under emulation.
####################################################################################################################################
def binary_arch(path):
# ELF e_machine values for the architectures pgBackRest is built on
machines = {0x03: "i386", 0x3E: "x86_64", 0x15: "ppc64", 0x16: "s390x", 0xB7: "aarch64", 0x28: "arm"}
with open(path, "rb") as file:
header = file.read(20)
if len(header) < 20 or header[:4] != b"\x7fELF":
return "unknown (not an ELF binary)"
little = header[5] == 1
machine = int.from_bytes(header[18:20], "little" if little else "big")
return "%s (%s-bit %s-endian)" % (
machines.get(machine, "machine 0x%02X" % machine),
"64" if header[4] == 2 else "32",
"little" if little else "big",
)
####################################################################################################################################
# Main
####################################################################################################################################
@@ -512,10 +536,11 @@ def main():
return 1
sys.stdout.write(
"pgbackrest smoke test: %s\nrunning as: %s\nversions supported: %s\nversions found: %s\n\n"
"pgbackrest smoke test: %s\nrunning as: %s\narchitecture: %s\nversions supported: %s\nversions found: %s\n\n"
% (
pgbackrest,
runner.user,
binary_arch(pgbackrest),
", ".join(version_str(v) for v in sorted(supported)) if supported else "unknown",
", ".join(version_str(v) for v, _ in installs),
)