diff options
Diffstat (limited to 'fix-crash-in-is_cfi-true-builds-with-unbundled-ICU.patch')
| -rw-r--r-- | fix-crash-in-is_cfi-true-builds-with-unbundled-ICU.patch | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/fix-crash-in-is_cfi-true-builds-with-unbundled-ICU.patch b/fix-crash-in-is_cfi-true-builds-with-unbundled-ICU.patch deleted file mode 100644 index ee7339d39817..000000000000 --- a/fix-crash-in-is_cfi-true-builds-with-unbundled-ICU.patch +++ /dev/null @@ -1,53 +0,0 @@ -From f15e8b573ada0fcd643ae393484214b1c7c940f8 Mon Sep 17 00:00:00 2001 -From: Evangelos Foutras <evangelos@foutrelis.com> -Date: Sat, 24 Mar 2018 00:04:33 +0000 -Subject: [PATCH] Fix crash in is_cfi=true builds with unbundled ICU - -Ensure ICU symbols have public visibility and are thus excluded from CFI -checks and whole-program optimization. The former caused a startup crash -and the latter has the potential to break virtual calls in weird ways. - -BUG=822820 - -Change-Id: Ia809eefcb9e93b3c612f2381d394db83bbc67120 -Reviewed-on: https://chromium-review.googlesource.com/978008 -Reviewed-by: Peter Collingbourne <pcc@chromium.org> -Reviewed-by: Thomas Anderson <thomasanderson@chromium.org> -Commit-Queue: Thomas Anderson <thomasanderson@chromium.org> -Cr-Commit-Position: refs/heads/master@{#545638} ---- - build/linux/unbundle/icu.gn | 18 ++++++++++++++++++ - 1 file changed, 18 insertions(+) - -diff --git a/build/linux/unbundle/icu.gn b/build/linux/unbundle/icu.gn -index 5bdd91555df7..4450e409dba5 100644 ---- a/build/linux/unbundle/icu.gn -+++ b/build/linux/unbundle/icu.gn -@@ -17,6 +17,24 @@ config("icu_config") { - "USING_SYSTEM_ICU=1", - "ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC", - "UCHAR_TYPE=uint16_t", -+ -+ # U_EXPORT (defined in unicode/platform.h) is used to set public visibility -+ # on classes through the U_COMMON_API and U_I18N_API macros (among others). -+ # When linking against the system ICU library, we want its symbols to have -+ # public LTO visibility. This disables CFI checks for the ICU classes and -+ # allows whole-program optimization to be applied to the rest of Chromium. -+ # -+ # Both U_COMMON_API and U_I18N_API macros would be defined to U_EXPORT only -+ # when U_COMBINED_IMPLEMENTATION is defined (see unicode/utypes.h). Because -+ # we override the default system UCHAR_TYPE (char16_t), it is not possible -+ # to use U_COMBINED_IMPLEMENTATION at this moment, meaning the U_COMMON_API -+ # and U_I18N_API macros are set to U_IMPORT which is an empty definition. -+ # -+ # Until building with UCHAR_TYPE=char16_t is supported, one way to apply -+ # public visibility (and thus public LTO visibility) to all ICU classes is -+ # to define U_IMPORT to have the same value as U_EXPORT. For more details, -+ # please see: https://crbug.com/822820 -+ "U_IMPORT=U_EXPORT", - ] - } - --- -2.16.3 - |