openssl/openssl

Assembly compilation error with openssl master for ios 8

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#26,510 opened on Jan 22, 2025

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branch: masterhelp wantedtriaged: bug

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Description

Discussed in https://github.com/openssl/openssl/discussions/26508

Originally posted by theoparis January 22, 2025 The Error:

/var/folders/
f1/dnhnm9p92m7djh9zydtx21s00000gn/T/armv4-gf2m-9049f1.s:229:1: error: symbol 'OPENSSL_armcap_P' can not be undefined in a subtraction expression
.word OPENSSL_armcap_P-.
^
make[1]: *** [crypto/bn/libcrypto-lib-armv4-gf2m.o] Error 1
make[1]: *** Waiting for unfinished jobs....
/var/folders/f1/dnhnm9p92m7djh9zydtx21s00000gn/T/armv4-mont-a0d413.s:26:1: error: symbol 'OPENSSL_armcap_P' can not be undefined in a subtraction expression
.word OPENSSL_armcap_P-Lbn_mul_mont
^

The command I used to build openssl was: ./Configure ios-xcrun no-shared --prefix=$HOME/armv7s-apple-darwin -mios-version-min=8.0 Adding no-asm seems to fix it temporarily 🤔 Any ideas?

Contributor guide

Research direction
Inspect the assembly files for iOS (armv4 gf2m.s, armv4 mont.s) and trace the use of OPENSSL armcap P. Check if the symbol is defined correctly for iOS targeting armv7s with version 8.0. Consider building with no asm as a temporary workaround, but investigate the root cause in the assembly code.
Tech stack
cios
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
Cassemblybuilding OpenSSL
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30