Building OpenSSL with Emscripten

[Richard Levitte]

The issue isn't with any defined or not so defined macro, but most
probably rather with how you're loading the library in the 3rd party
code base.  Could it be that you're linking with libssl only?

Cheers,
Richard

On Fri, 10 May 2019 22:29:36 +0200,
Sunghyun Park wrote:
> 
> Hi, all. Thanks for your help, I could finish compilation to the end. 
> However, athough I successfully compiled with _no-asm_ options, I found a problem when loading the
> compiled library in the 3rd party code base.
> When looking into the source code, the definition of some function seems to require a specific
> preprocessor to be compiled. 
> (For example, PEM_write_bio_DSAPrivateKey needs '#define OPENSSL_FIPS'.)
> I installed openssl-1.0.2r.tar.gz and only provided no-asm for configuration.
> Am I missing some dependencies or necessary options?
> The error I'm facing is as follows:
> 
>     error: undefined symbol: AES_ctr128_encrypt
>     warning: To disable errors for undefined symbols use `-s ERROR_ON_UNDEFINED_SYMBOLS=0`
>     error: undefined symbol: AES_set_encrypt_key
>     error: undefined symbol: BIO_ctrl
>     error: undefined symbol: BIO_free
>     error: undefined symbol: BIO_new
>     error: undefined symbol: BIO_s_mem
>     error: undefined symbol: BN_bn2bin
>     error: undefined symbol: BN_free
>     error: undefined symbol: BN_is_bit_set
>     error: undefined symbol: BN_new
>     error: undefined symbol: BN_num_bits
>     error: undefined symbol: BN_set_word
>     error: undefined symbol: CRYPTO_free
>     error: undefined symbol: CRYPTO_malloc
>     error: undefined symbol: DSA_free
>     error: undefined symbol: DSA_generate_key
>     error: undefined symbol: DSA_generate_parameters_ex
>     error: undefined symbol: DSA_new
>     error: undefined symbol: EC_KEY_free
>     error: undefined symbol: EC_KEY_generate_key
>     error: undefined symbol: EC_KEY_get0_group
>     error: undefined symbol: EC_KEY_get0_public_key
>     error: undefined symbol: EC_KEY_new_by_curve_name
>     error: undefined symbol: EC_KEY_set_asn1_flag
>     error: undefined symbol: EC_POINT_point2oct
> 
>     ....
> 
> Any advice would be a great help!
> Thank you.
> 
> On Thu, May 9, 2019 at 10:43 PM Dr Paul Dale <paul.dale at oracle.com> wrote:
> 
>     Configure with the _no-asm_ option.
>    
>     It will be a **lot** slower.
> 
>     Pauli
>     -- 
>     Dr Paul Dale | Cryptographer | Network Security & Encryption 
>     Phone +61 7 3031 7217
>     Oracle Australia
> 
>         On 10 May 2019, at 3:33 pm, Sunghyun Park <sunggg at umich.edu> wrote:
>        
>         Nice to meet you all :)
>        
>         I faced a problem while building assembly code in OpenSSL (e.g., crypto/x86_64cpuid.s)
>         with Emscripten. 
>         Since Emscripten does not support compilation for assembly code (As far as I know), I'm
>         wondering if there is any version of OpenSSL that does not require compiling assembly
>         code.
>         Or, if there is anyone who experienced the similar problem, please share your experience. 
>        
>         Thank you!
>        
>         --
>         Best, Sung
> 
> --
> Best, Sung
> 
> 
-- 
Richard Levitte         levitte at openssl.org
OpenSSL Project         http://www.openssl.org/~levitte/