GenFw will embed a NM10 section which contains the path to the input file, which means the output files have build paths embedded in them. To reduce information leakage and ensure reproducible builds, pass --zero in release builds to remove this information.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3256 Change-Id: Ie607893b979674e237cf04ead5c7690d7b1aedaf Signed-off-by: Ross Burton <ross.bur...@arm.com> --- OvmfPkg/AmdSev/AmdSevX64.dsc | 1 + OvmfPkg/Bhyve/BhyveX64.dsc | 1 + OvmfPkg/OvmfPkgIa32.dsc | 2 ++ OvmfPkg/OvmfPkgIa32X64.dsc | 1 + OvmfPkg/OvmfPkgX64.dsc | 1 + OvmfPkg/OvmfXen.dsc | 1 + 6 files changed, 7 insertions(+) diff --git a/OvmfPkg/AmdSev/AmdSevX64.dsc b/OvmfPkg/AmdSev/AmdSevX64.dsc index 65c42284d9..69a05feea9 100644 --- a/OvmfPkg/AmdSev/AmdSevX64.dsc +++ b/OvmfPkg/AmdSev/AmdSevX64.dsc @@ -78,6 +78,7 @@ GCC:*_*_X64_GENFW_FLAGS = --keepexceptiontable INTEL:*_*_X64_GENFW_FLAGS = --keepexceptiontable !endif + RELEASE_*_*_GENFW_FLAGS = --zero # # Disable deprecated APIs. diff --git a/OvmfPkg/Bhyve/BhyveX64.dsc b/OvmfPkg/Bhyve/BhyveX64.dsc index 4a1cdf5aca..132f55cf69 100644 --- a/OvmfPkg/Bhyve/BhyveX64.dsc +++ b/OvmfPkg/Bhyve/BhyveX64.dsc @@ -76,6 +76,7 @@ GCC:*_*_X64_GENFW_FLAGS = --keepexceptiontable INTEL:*_*_X64_GENFW_FLAGS = --keepexceptiontable !endif + RELEASE_*_*_GENFW_FLAGS = --zero # # Disable deprecated APIs. diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc index 1eaf3e99c6..ce20f09df8 100644 --- a/OvmfPkg/OvmfPkgIa32.dsc +++ b/OvmfPkg/OvmfPkgIa32.dsc @@ -90,6 +90,8 @@ !include NetworkPkg/NetworkBuildOptions.dsc.inc + RELEASE_*_*_GENFW_FLAGS = --zero + [BuildOptions.common.EDKII.DXE_RUNTIME_DRIVER] GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x1000 XCODE:*_*_*_DLINK_FLAGS = -seg1addr 0x1000 -segalign 0x1000 diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc index 4a5a430147..97cc438250 100644 --- a/OvmfPkg/OvmfPkgIa32X64.dsc +++ b/OvmfPkg/OvmfPkgIa32X64.dsc @@ -84,6 +84,7 @@ GCC:*_*_X64_GENFW_FLAGS = --keepexceptiontable INTEL:*_*_X64_GENFW_FLAGS = --keepexceptiontable !endif + RELEASE_*_*_GENFW_FLAGS = --zero # # Disable deprecated APIs. diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc index d4d601b444..f544fb04bf 100644 --- a/OvmfPkg/OvmfPkgX64.dsc +++ b/OvmfPkg/OvmfPkgX64.dsc @@ -84,6 +84,7 @@ GCC:*_*_X64_GENFW_FLAGS = --keepexceptiontable INTEL:*_*_X64_GENFW_FLAGS = --keepexceptiontable !endif + RELEASE_*_*_GENFW_FLAGS = --zero # # Disable deprecated APIs. diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc index 507029404f..fcaa35acf1 100644 --- a/OvmfPkg/OvmfXen.dsc +++ b/OvmfPkg/OvmfXen.dsc @@ -74,6 +74,7 @@ GCC:*_*_X64_GENFW_FLAGS = --keepexceptiontable INTEL:*_*_X64_GENFW_FLAGS = --keepexceptiontable !endif + RELEASE_*_*_GENFW_FLAGS = --zero # # Disable deprecated APIs. -- 2.25.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#72990): https://edk2.groups.io/g/devel/message/72990 Mute This Topic: https://groups.io/mt/81410931/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
