import systemtap-4.6-13.el9_0
This commit is contained in:
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4dd5486a03
commit
90d759d2a7
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@ -0,0 +1,38 @@
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commit 9b6f4d4e4f2649b05459be4ecf48a42661163fd1
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Author: Stan Cox <scox@redhat.com>
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Date: Fri Feb 25 14:09:26 2022 -0500
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PR28557: module probe insertion on modern kernels
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Similar to commit 0425c60d7 but for return probes. Try to fully relocate
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addresses, before letting the kernel try it with symbols / kallsyms.
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diff --git a/runtime/linux/kprobes.c b/runtime/linux/kprobes.c
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index d59935d06..09f0e0665 100644
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--- a/runtime/linux/kprobes.c
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+++ b/runtime/linux/kprobes.c
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@@ -269,15 +269,17 @@ stapkp_prepare_kretprobe(struct stap_kprobe_probe *skp)
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struct kretprobe *krp = &skp->kprobe->u.krp;
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unsigned long addr = 0;
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- if (! skp->symbol_name) {
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- addr = stapkp_relocate_addr(skp);
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- if (addr == 0)
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- return 1;
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- krp->kp.addr = (void *) addr;
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+ // PR28557 Try a pass resolving the address now with the currently
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+ // known module/section addresses within our own stap-symbols tables.
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+ addr = stapkp_relocate_addr(skp);
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+ if (addr != 0) {
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+ krp->kp.addr = (void*) addr;
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}
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- else {
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+ // fall back to kallsyms-based or kernel kprobes-delegated symbolic
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+ // registration
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+ else if (skp->symbol_name) {
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if (USE_KALLSYMS_ON_EACH_SYMBOL && krp->kp.addr == 0)
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- return 1;
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+ return 4;
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else if (!USE_KALLSYMS_ON_EACH_SYMBOL) {
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0)
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if (krp->kp.symbol_name == NULL)
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@ -118,7 +118,7 @@ m stapdev stapdev
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Name: systemtap
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Version: 4.6
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Release: 12%{?release_override}%{?dist}
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Release: 13%{?release_override}%{?dist}
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# for version, see also configure.ac
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@ -162,6 +162,7 @@ Patch5: rhbz2027683.patch
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Patch6: rhbz2047256.patch
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Patch7: rhbz2039207.patch
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Patch8: rhbz2058908.patch
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Patch9: rhbz2083727.patch
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# Build*
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BuildRequires: make
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@ -591,6 +592,7 @@ systemtap-runtime-virthost machine to execute systemtap scripts.
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%patch6 -p1
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%patch7 -p1
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%patch8 -p1
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%patch9 -p1
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%build
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@ -1287,6 +1289,9 @@ exit 0
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# PRERELEASE
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%changelog
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* Thu May 12 2022 Frank Ch. Eigler <fche@redhat.com> - 4.6-13
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- rhbz2083727: fix kernel module .return probes
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* Fri Mar 11 2022 Frank Ch. Eigler <fche@redhat.com> - 4.6-12
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- rhbz2058908: Change sys/sdt.h on x86-64 to stop allowing xmm registers
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