From d001b44003dc758fe5cb0dcc67020cf5524e3233 Mon Sep 17 00:00:00 2001 From: Mark Wielaard Date: Wed, 6 Dec 2023 16:07:55 +0100 Subject: [PATCH] 3.22.0-2 - Add valgrind-3.22.0-rodata.patch Resolves: #RHEL-18086 valgrind 3.22.0 fails when loading /usr/bin/stunnel --- valgrind-3.22.0-rodata.patch | 122 +++++++++++++++++++++++++++++++++++ valgrind.spec | 11 +++- 2 files changed, 132 insertions(+), 1 deletion(-) create mode 100644 valgrind-3.22.0-rodata.patch diff --git a/valgrind-3.22.0-rodata.patch b/valgrind-3.22.0-rodata.patch new file mode 100644 index 0000000..47f31ed --- /dev/null +++ b/valgrind-3.22.0-rodata.patch @@ -0,0 +1,122 @@ +commit 1d00e5ce0fb069911c4b525ec38289fb5d9021b0 +Author: Paul Floyd +Date: Sat Nov 18 08:49:34 2023 +0100 + + Bug 476548 - valgrind 3.22.0 fails on assertion when loading debuginfo file produced by mold + + (cherry picked from commit 9ea4ae66707a4dcc6f4328e11911652e4418c585) + +diff --git a/coregrind/m_debuginfo/image.c b/coregrind/m_debuginfo/image.c +index 02e509071..445f95555 100644 +--- a/coregrind/m_debuginfo/image.c ++++ b/coregrind/m_debuginfo/image.c +@@ -1221,6 +1221,20 @@ Int ML_(img_strcmp_c)(DiImage* img, DiOffT off1, const HChar* str2) + } + } + ++Int ML_(img_strcmp_n)(DiImage* img, DiOffT off1, const HChar* str2, Word n) ++{ ++ ensure_valid(img, off1, 1, "ML_(img_strcmp_c)"); ++ while (n) { ++ UChar c1 = get(img, off1); ++ UChar c2 = *(const UChar*)str2; ++ if (c1 < c2) return -1; ++ if (c1 > c2) return 1; ++ if (c1 == 0) return 0; ++ off1++; str2++; --n; ++ } ++ return 0; ++} ++ + UChar ML_(img_get_UChar)(DiImage* img, DiOffT offset) + { + ensure_valid(img, offset, 1, "ML_(img_get_UChar)"); +diff --git a/coregrind/m_debuginfo/priv_image.h b/coregrind/m_debuginfo/priv_image.h +index a49846f14..c91e49f01 100644 +--- a/coregrind/m_debuginfo/priv_image.h ++++ b/coregrind/m_debuginfo/priv_image.h +@@ -115,6 +115,10 @@ Int ML_(img_strcmp)(DiImage* img, DiOffT off1, DiOffT off2); + cast to HChar before comparison. */ + Int ML_(img_strcmp_c)(DiImage* img, DiOffT off1, const HChar* str2); + ++/* Do strncmp of a C string in the image vs a normal one. Chars are ++ cast to HChar before comparison. */ ++Int ML_(img_strcmp_n)(DiImage* img, DiOffT off1, const HChar* str2, Word n); ++ + /* Do strlen of a C string in the image. */ + SizeT ML_(img_strlen)(DiImage* img, DiOffT off); + +diff --git a/coregrind/m_debuginfo/readelf.c b/coregrind/m_debuginfo/readelf.c +index fb64ed976..46f8c8343 100644 +--- a/coregrind/m_debuginfo/readelf.c ++++ b/coregrind/m_debuginfo/readelf.c +@@ -2501,8 +2501,7 @@ Bool ML_(read_elf_object) ( struct _DebugInfo* di ) + di->rodata_avma += inrw1->bias; + di->rodata_bias = inrw1->bias; + di->rodata_debug_bias = inrw1->bias; +- } +- else { ++ } else { + BAD(".rodata"); /* should not happen? */ + } + di->rodata_present = True; +@@ -2977,6 +2976,46 @@ Bool ML_(read_elf_object) ( struct _DebugInfo* di ) + return retval; + } + ++static void find_rodata(Word i, Word shnum, DiImage* dimg, struct _DebugInfo* di, DiOffT shdr_dioff, ++ UWord shdr_dent_szB, DiOffT shdr_strtab_dioff, PtrdiffT rw_dbias) ++{ ++ ElfXX_Shdr a_shdr; ++ ElfXX_Shdr a_extra_shdr; ++ ML_(img_get)(&a_shdr, dimg, ++ INDEX_BIS(shdr_dioff, i, shdr_dent_szB), ++ sizeof(a_shdr)); ++ if (di->rodata_present && ++ 0 == ML_(img_strcmp_c)(dimg, shdr_strtab_dioff ++ + a_shdr.sh_name, ".rodata")) { ++ Word sh_size = a_shdr.sh_size; ++ Word j; ++ Word next_addr = a_shdr.sh_addr + a_shdr.sh_size; ++ for (j = i + 1; j < shnum; ++j) { ++ ML_(img_get)(&a_extra_shdr, dimg, ++ INDEX_BIS(shdr_dioff, j, shdr_dent_szB), ++ sizeof(a_shdr)); ++ if (0 == ML_(img_strcmp_n)(dimg, shdr_strtab_dioff ++ + a_extra_shdr.sh_name, ".rodata", 7)) { ++ if (a_extra_shdr.sh_addr == ++ VG_ROUNDUP(next_addr, a_extra_shdr.sh_addralign)) { ++ sh_size = VG_ROUNDUP(sh_size, a_extra_shdr.sh_addralign) + a_extra_shdr.sh_size; ++ } ++ next_addr = a_extra_shdr.sh_addr + a_extra_shdr.sh_size; ++ } else { ++ break; ++ } ++ } ++ vg_assert(di->rodata_size == sh_size); ++ vg_assert(di->rodata_avma + a_shdr.sh_addr + rw_dbias); ++ di->rodata_debug_svma = a_shdr.sh_addr; ++ di->rodata_debug_bias = di->rodata_bias + ++ di->rodata_svma - di->rodata_debug_svma; ++ TRACE_SYMTAB("acquiring .rodata debug svma = %#lx .. %#lx\n", ++ di->rodata_debug_svma, ++ di->rodata_debug_svma + di->rodata_size - 1); ++ TRACE_SYMTAB("acquiring .rodata debug bias = %#lx\n", (UWord)di->rodata_debug_bias); ++ } ++} + Bool ML_(read_elf_debug) ( struct _DebugInfo* di ) + { + Word i, j; +@@ -3391,7 +3430,11 @@ Bool ML_(read_elf_debug) ( struct _DebugInfo* di ) + FIND(text, rx) + FIND(data, rw) + FIND(sdata, rw) +- FIND(rodata, rw) ++ // https://bugs.kde.org/show_bug.cgi?id=476548 ++ // special handling for rodata as adjacent ++ // rodata sections may have been merged in ML_(read_elf_object) ++ //FIND(rodata, rw) ++ find_rodata(i, ehdr_dimg.e_shnum, dimg, di, shdr_dioff, shdr_dent_szB, shdr_strtab_dioff, rw_dbias); + FIND(bss, rw) + FIND(sbss, rw) + diff --git a/valgrind.spec b/valgrind.spec index 3c309d4..551192b 100644 --- a/valgrind.spec +++ b/valgrind.spec @@ -3,7 +3,7 @@ Summary: Dynamic analysis tools to detect memory or thread bugs and profile Name: %{?scl_prefix}valgrind Version: 3.22.0 -Release: 1%{?dist} +Release: 2%{?dist} Epoch: 1 License: GPLv2+ URL: https://www.valgrind.org/ @@ -88,6 +88,10 @@ Patch3: valgrind-3.16.0-some-stack-protector.patch # Add some -Wl,z,now. Patch4: valgrind-3.16.0-some-Wl-z-now.patch +# valgrind 3.22.0 fails on assertion when loading debuginfo +# https://bugs.kde.org/show_bug.cgi?id=476548 +Patch5: valgrind-3.22.0-rodata.patch + BuildRequires: make BuildRequires: glibc-devel @@ -226,6 +230,8 @@ Valgrind User Manual for details. %patch -P4 -p1 %endif +%patch -P5 -p1 + %build # LTO triggers undefined symbols in valgrind. Valgrind has a --enable-lto # configure time option, but that doesn't seem to help. @@ -458,6 +464,9 @@ fi %endif %changelog +* Wed Dec 6 2023 Mark Wielaard - 3.22.0-2 +- Add valgrind-3.22.0-rodata.patch + * Fri Nov 3 2023 Mark Wielaard - 3.22.0-1 - Upstream 3.22.0 final - BuildRequires elfutils-debuginfod for testing