8afd224270
* CVE-2026-0899: Out of bounds memory access in V8 * CVE-2026-0900: Inappropriate implementation in V8 * CVE-2026-0901: Inappropriate implementation in Blink * CVE-2026-0902: Inappropriate implementation in V8 * CVE-2026-0903: Insufficient validation of untrusted input in Downloads * CVE-2026-0904: Incorrect security UI in Digital Credentials * CVE-2026-0905: Insufficient policy enforcement in Network * CVE-2026-0906: Incorrect security UI * CVE-2026-0907: Incorrect security UI in Split View * CVE-2026-0908: Use after free in ANGLE
39 lines
1.7 KiB
Diff
39 lines
1.7 KiB
Diff
Author: Daniel Richard G. <skunk@iSKUNK.ORG>
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When building Chromium on unstable/ppc64el with ThinLTO enabled, this error
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occurs in the final link:
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ld.lld-16: error: Linking two modules of different data layouts:
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$C_CXX_OBJECT is 'e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512' whereas
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$RUST_LIBRARY is 'e-m:e-Fn32-i64:64-n32:64-S128-v256:256:256-v512:512:512'
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This is because the LLVM data layout for powerpc64le-unknown-linux-gnu has
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evolved over time, gaining the "Fn32" bit that specifies function pointer
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alignment. See the following source locations:
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llvm-project/clang/lib/Basic/Targets/PPC.h
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(class PPC64TargetInfo, under "Triple.getArch() == llvm::Triple::ppc64le")
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rust/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs
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(note that this file was relocated in a later version)
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This change occurred in clang-17, and rustc followed suit in 1.73.0. Since
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we use an older clang and a newer rustc in our unstable build, we get an
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inconsistency in data layouts when targeting this particular platform.
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The error reported by the linker is not technically an error, however, only
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a warning goosed up by a --fatal-warnings flag.
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Index: chromium-144.0.7559.59/build/config/compiler/BUILD.gn
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===================================================================
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--- chromium-144.0.7559.59.orig/build/config/compiler/BUILD.gn
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+++ chromium-144.0.7559.59/build/config/compiler/BUILD.gn
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@@ -470,7 +470,7 @@ config("compiler") {
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# Linker warnings.
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if (fatal_linker_warnings && !is_apple && current_os != "aix" &&
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- current_os != "zos") {
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+ current_os != "zos" && current_cpu != "ppc64") {
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ldflags += [ "-Wl,--fatal-warnings" ]
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}
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if (fatal_linker_warnings && is_apple) {
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