Support building NSS's libssl as a component

libssl is used both by net (as part of SSL) and part of content (as part
of WebRTC). Built in component mode, two copies get built in, with
independent global variables - thus causing the net/ initialization
functions to initialize the net.dll version, rather than the content.dll
version.

Make libssl build as a dll in component mode (roughly). Rather than using
a linker script like upstream, just export all the symbols.

BUG=webrtc:1390
TEST=component builds are happy


Review URL: https://chromiumcodereview.appspot.com/12383007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@185342 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 84 insertions, 1 deletions

diff --git a/net/third_party/nss/ssl.gyp b/net/third_party/nss/ssl.gyp
index 548a5e3..eac82d4 100644
--- a/net/third_party/nss/ssl.gyp
+++ b/net/third_party/nss/ssl.gyp
@@ -22,7 +22,8 @@
   'targets': [
     {
       'target_name': 'libssl',
-      'type': 'static_library',
+      'type': '<(component)',
+      'product_name': 'crssl',  # Don't conflict with OpenSSL's libssl
       'sources': [
         'ssl/authcert.c',
         'ssl/cmpcert.c',
@@ -88,6 +89,23 @@
       ],
       'msvs_disabled_warnings': [4018, 4244, 4267],
       'conditions': [
+        ['component == "shared_library"', {
+          'conditions': [
+            ['OS == "mac" or OS == "ios"', {
+              'xcode_settings': {
+                'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',
+              },
+            }],
+            ['OS == "win"', {
+              'sources': [
+                'ssl/exports_win.def',
+              ],
+            }],
+            ['os_posix == 1 and OS != "mac" and OS != "ios"', {
+              'cflags!': ['-fvisibility=hidden'],
+            }],
+          ],
+        }],
         [ 'clang == 1', {
           'cflags': [
             # See http://crbug.com/138571#c8. In short, sslsecur.c picks up the
@@ -102,6 +120,13 @@
             'XP_MACOSX',
           ],
         }],
+        [ 'OS == "mac"', {
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/Security.framework',
+            ],
+          },
+        }],
         [ 'OS == "win"', {
             'sources!': [
               'ssl/unix_err.c',
diff --git a/net/third_party/nss/ssl/exports_win.def b/net/third_party/nss/ssl/exports_win.def
new file mode 100644
index 0000000..848f048
--- /dev/null
+++ b/net/third_party/nss/ssl/exports_win.def
@@ -0,0 +1,58 @@
+; Copyright (c) 2013 The Chromium Authors. All rights reserved.
+; Use of this source code is governed by a BSD-style license that can be
+; found in the LICENSE file.
+
+LIBRARY CRSSL
+EXPORTS
+
+NSS_CmpCertChainWCANames
+NSS_FindCertKEAType
+NSS_GetClientAuthData
+NSS_SetDomesticPolicy
+SSL_AuthCertificate
+SSL_AuthCertificateHook
+SSL_CipherPolicyGet
+SSL_CipherPolicySet
+SSL_CipherPrefGet
+SSL_CipherPrefGetDefault
+SSL_CipherPrefSet
+SSL_CipherPrefSetDefault
+SSL_ClearSessionCache
+SSL_ConfigSecureServer
+SSL_ConfigServerSessionIDCache
+SSL_ForceHandshake
+SSL_GetClientAuthDataHook
+SSL_GetSessionID
+SSL_HandshakeCallback
+SSL_ImportFD
+SSL_InvalidateSession
+SSL_OptionGet
+SSL_OptionGetDefault
+SSL_OptionSet
+SSL_OptionSetDefault
+SSL_PeerCertificate
+SSL_ResetHandshake
+SSL_SetSockPeerID
+SSL_SetURL
+SSL_GetChannelInfo
+SSL_GetCipherSuiteInfo
+SSL_ShutdownServerSessionIDCache
+SSL_GetImplementedCiphers
+SSL_GetNumImplementedCiphers
+SSL_HandshakeNegotiatedExtension
+SSL_SetNextProtoCallback
+DTLS_GetHandshakeTimeout
+DTLS_ImportFD
+SSL_ExportKeyingMaterial
+SSL_VersionRangeSet
+SSL_GetSRTPCipher
+SSL_SetSRTPCiphers
+
+; Chromium patches
+SSL_PeerCertificateChain
+SSL_SetClientChannelIDCallback
+SSL_GetPlatformClientAuthDataHook
+SSL_HandshakeResumedSession
+SSL_GetStapledOCSPResponse
+SSL_RestartHandshakeAfterChannelIDReq
+SSL_GetChannelBinding