rr: patch for Linux 6.x UAPI
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63
srcpkgs/rr/patches/linux-6.patch
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63
srcpkgs/rr/patches/linux-6.patch
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From 2979c60ef8bbf7c940afd90172ddc5d8863f766e Mon Sep 17 00:00:00 2001
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From: Robert O'Callahan <robert@ocallahan.org>
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Date: Thu, 25 Aug 2022 20:40:59 +1200
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Subject: [PATCH] Avoid creating a struct with elements after
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ethtool_sset_info's variable-length-array.
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Resolves #3369
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---
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src/record_syscall.cc | 27 +++++++++++++--------------
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1 file changed, 13 insertions(+), 14 deletions(-)
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diff --git a/src/record_syscall.cc b/src/record_syscall.cc
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index 2e4cdec352..48544e1df8 100644
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--- a/src/record_syscall.cc
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+++ b/src/record_syscall.cc
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@@ -1450,17 +1450,17 @@ template <typename Arch> void get_ethtool_gstrings_arch(RecordTask* t) {
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AutoRemoteSyscalls remote(t);
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// Do a ETHTOOL_GSSET_INFO to get the number of strings
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- struct SingleStringSet {
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- ethtool_sset_info et;
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- uint32_t data;
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- };
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- SingleStringSet sss;
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- sss.et.cmd = ETHTOOL_GSSET_INFO;
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- sss.et.reserved = 0;
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- sss.et.sset_mask = 1 << et_gstrings.string_set;
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- AutoRestoreMem sss_mem(remote, &sss, sizeof(sss));
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-
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- ifreq.ifr_ifru.ifru_data = sss_mem.get();
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+ ethtool_sset_info et;
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+ et.cmd = ETHTOOL_GSSET_INFO;
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+ et.reserved = 0;
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+ et.sset_mask = 1 << et_gstrings.string_set;
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+ std::vector<uint8_t> buffer;
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+ buffer.resize(sizeof(et) + sizeof(uint32_t));
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+ memcpy(buffer.data(), &et, sizeof(et));
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+ memset(buffer.data() + sizeof(et), 0, sizeof(uint32_t));
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+ AutoRestoreMem et_mem(remote, buffer.data(), buffer.size());
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+
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+ ifreq.ifr_ifru.ifru_data = et_mem.get();
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AutoRestoreMem ifr_mem(remote, &ifreq, sizeof(ifreq));
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long ret = remote.syscall(regs.original_syscallno(), regs.arg1(),
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@@ -1470,8 +1470,7 @@ template <typename Arch> void get_ethtool_gstrings_arch(RecordTask* t) {
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return;
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}
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- sss = t->read_mem(sss_mem.get().cast<SingleStringSet>());
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-
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+ uint32_t data = t->read_mem((et_mem.get() + sizeof(et)).cast<uint32_t>());
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// Now do the ETHTOOL_GSTRINGS call
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ret = remote.syscall(regs.original_syscallno(), regs.arg1(), SIOCETHTOOL,
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regs.arg3());
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@@ -1479,7 +1478,7 @@ template <typename Arch> void get_ethtool_gstrings_arch(RecordTask* t) {
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if (ret < 0) {
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return;
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}
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- t->record_remote(orig_gstrings, sizeof(ethtool_gstrings) + ETH_GSTRING_LEN*sss.data);
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+ t->record_remote(orig_gstrings, sizeof(ethtool_gstrings) + ETH_GSTRING_LEN*data);
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}
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static void get_ethtool_gstrings(RecordTask* t) {
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@ -11,7 +11,7 @@ short_desc="Nondeterministic debugger"
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maintainer="Orphaned <orphan@voidlinux.org>"
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license="MIT, BSD-2-Clause"
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homepage="http://rr-project.org/"
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distfiles="https://github.com/mozilla/${pkgname}/archive/${version}.tar.gz"
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distfiles="https://github.com/mozilla/rr/archive/${version}.tar.gz"
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checksum=a75262ae622c2c91d3391401d3da4e1dc9379b5afea5c40c9ea93f6905706c87
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nopie=yes
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