From db45a970740a18c320b780506429fc3e0749004d Mon Sep 17 00:00:00 2001 From: Bruce Ashfield Date: Tue, 16 Apr 2013 13:13:48 -0700 Subject: linux-yocto/3.8: Makefile: add -grecord-gcc-switches if using -mfentry Commit a2546fae [ftrace: Add -mfentry to Makefile on function tracer] adds support for using -mfentry when possible, whenever the ftrace CONFIG_FUNCTION_TRACER option is enabled. This unfortunately causes bogus dwarf debuginfo to be generated: gcc Bug 54793 - the location of a formal_parameter is not started from a function entry with -mfentry http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54793 This can be fixed by applying the gcc patch above, which will be present in gcc-4.8, but in the meantime, the problem is currently being worked around in different ways by various tools. One of those tools that we support in Yocto, Systemtap, requires the DW_AT_producer string contain -mfentry, which means that it's assuming record-gcc-switches is also used: SystemTap Bug 15123 - workaround for bad debuginfo for -mfentry http://sourceware.org/bugzilla/show_bug.cgi?id=15123 The lack of -grecord-gcc-switches and therefore a missing -mfentry string in Yocto leads to the following Yocto bug: Bug 4099 - Crosstap script check fails https://bugzilla.yoctoproject.org/show_bug.cgi?id=4099 Which is what this patch intends to fix. It only affects architectures that HAVE_FENTRY when CONFIG_FUNCTION_TRACER is turned on and in any case is just adding to the debuginfo, so there doesn't seem to be much risk to adding it. (From OE-Core rev: c04f611aa4bf77867fe78a005d09434226feb62c) Signed-off-by: Tom Zanussi Signed-off-by: Bruce Ashfield Signed-off-by: Richard Purdie --- meta/recipes-kernel/linux/linux-yocto_3.8.bb | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'meta/recipes-kernel/linux/linux-yocto_3.8.bb') diff --git a/meta/recipes-kernel/linux/linux-yocto_3.8.bb b/meta/recipes-kernel/linux/linux-yocto_3.8.bb index 91cc52debf..4bf6bf4009 100644 --- a/meta/recipes-kernel/linux/linux-yocto_3.8.bb +++ b/meta/recipes-kernel/linux/linux-yocto_3.8.bb @@ -3,12 +3,12 @@ require recipes-kernel/linux/linux-yocto.inc KBRANCH_DEFAULT = "standard/base" KBRANCH = "${KBRANCH_DEFAULT}" -SRCREV_machine_qemuarm ?= "ec3299eaa89a7302009e3d46c9570f633ff32e9a" -SRCREV_machine_qemumips ?= "0d60789d710808e38690f27216c3ab13753e1055" -SRCREV_machine_qemuppc ?= "223428bbc1a355200bd9a8046fd272c1b9b13e67" -SRCREV_machine_qemux86 ?= "11998bd1f44b21cd0b8c0ca11cbd36865f14bfdc" -SRCREV_machine_qemux86-64 ?= "11998bd1f44b21cd0b8c0ca11cbd36865f14bfdc" -SRCREV_machine ?= "11998bd1f44b21cd0b8c0ca11cbd36865f14bfdc" +SRCREV_machine_qemuarm ?= "1473dd2b4505109d45bd7099f63826a66b71103d" +SRCREV_machine_qemumips ?= "1695c38d04855cc225bcc1968289770f0fa0ea64" +SRCREV_machine_qemuppc ?= "8b39c0424704a40c740b1ac61449fdf190a8460a" +SRCREV_machine_qemux86 ?= "d9a45e3325030f7bd6f37947a7a0b12da7f602c3" +SRCREV_machine_qemux86-64 ?= "d9a45e3325030f7bd6f37947a7a0b12da7f602c3" +SRCREV_machine ?= "d9a45e3325030f7bd6f37947a7a0b12da7f602c3" SRCREV_meta ?= "27b63fdbd25ad1a37bacc05f49a205c150d21779" SRC_URI = "git://git.yoctoproject.org/linux-yocto-3.8.git;protocol=git;bareclone=1;branch=${KBRANCH},${KMETA};name=machine,meta" -- cgit v1.2.3-54-g00ecf