Simplify the assembler's evaluation of chained .loc view expressions.
Resolves: #2059646
This commit is contained in:
Nick Clifton
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d685480361
commit
c074b4afae
59
binutils-gas-loc-view.patch
Normal file
59
binutils-gas-loc-view.patch
Normal file
@ -0,0 +1,59 @@
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Only in binutils-2.38/gas: #dwarf2dbg.c#
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Only in binutils-2.38/gas: .#dwarf2dbg.c
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diff -rup binutils.orig/gas/symbols.c binutils-2.38/gas/symbols.c
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--- binutils.orig/gas/symbols.c 2022-03-09 11:43:34.706610216 +0000
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+++ binutils-2.38/gas/symbols.c 2022-03-09 11:45:57.540686508 +0000
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@@ -61,8 +61,10 @@ struct symbol_flags
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/* Whether the symbol can be re-defined. */
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unsigned int volatil : 1;
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- /* Whether the symbol is a forward reference. */
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+ /* Whether the symbol is a forward reference, and whether such has
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+ been determined. */
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unsigned int forward_ref : 1;
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+ unsigned int forward_resolved : 1;
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/* This is set if the symbol is defined in an MRI common section.
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We handle such sections as single common symbols, so symbols
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@@ -202,7 +204,7 @@ static void *
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symbol_entry_find (htab_t table, const char *name)
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{
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hashval_t hash = htab_hash_string (name);
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- symbol_entry_t needle = { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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+ symbol_entry_t needle = { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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hash, name, 0, 0, 0 } };
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return htab_find_with_hash (table, &needle, hash);
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}
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@@ -784,7 +786,9 @@ symbol_clone (symbolS *orgsymP, int repl
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symbolS *
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symbol_clone_if_forward_ref (symbolS *symbolP, int is_forward)
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{
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- if (symbolP && !symbolP->flags.local_symbol)
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+ if (symbolP
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+ && !symbolP->flags.local_symbol
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+ && !symbolP->flags.forward_resolved)
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{
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symbolS *orig_add_symbol = symbolP->x->value.X_add_symbol;
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symbolS *orig_op_symbol = symbolP->x->value.X_op_symbol;
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@@ -837,6 +841,7 @@ symbol_clone_if_forward_ref (symbolS *sy
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symbolP->x->value.X_add_symbol = add_symbol;
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symbolP->x->value.X_op_symbol = op_symbol;
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+ symbolP->flags.forward_resolved = 1;
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}
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return symbolP;
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diff -rup binutils.orig/gas/testsuite/gas/elf/dwarf2-18.d binutils-2.38/gas/testsuite/gas/elf/dwarf2-18.d
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--- binutils.orig/gas/testsuite/gas/elf/dwarf2-18.d 2022-03-09 11:43:34.487611632 +0000
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+++ binutils-2.38/gas/testsuite/gas/elf/dwarf2-18.d 2022-03-09 11:48:03.298873228 +0000
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@@ -2,9 +2,8 @@
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#readelf: -x.rodata -wL
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#name: DWARF2 18
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# The am33 cr16 crx ft32 mn10 msp430 nds32 and rl78 targets do not evaluate the subtraction of symbols at assembly time.
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-# The mep targets turns some view computations into complex relocations.
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# The riscv targets do not support the subtraction of symbols.
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-#xfail: am3*-* cr16-* crx-* ft32*-* mep-* mn10*-* msp430-* nds32*-* riscv*-* rl78-*
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+#xfail: am3*-* cr16-* crx-* ft32*-* mn10*-* msp430-* nds32*-* riscv*-* rl78-*
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Hex dump of section '\.rodata':
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0x00000000 0100 *.*
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@ -39,7 +39,7 @@
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Summary: A GNU collection of binary utilities
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Name: binutils%{?name_cross}%{?_with_debug:-debug}
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Version: 2.38
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Release: 3%{?dist}
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Release: 4%{?dist}
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License: GPLv3+
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URL: https://sourceware.org/binutils
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@ -236,21 +236,21 @@ Patch08: binutils-2.27-aarch64-ifunc.patch
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Patch09: binutils-do-not-link-with-static-libstdc++.patch
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# Purpose: Allow OS specific sections in section groups.
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# Lifetime: Fixed in 2.38 (maybe)
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# Lifetime: Fixed in 2.39 (maybe)
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Patch10: binutils-special-sections-in-groups.patch
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# Purpose: Fix linker testsuite failures.
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# Lifetime: Fixed in 2.37 (maybe)
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# Lifetime: Fixed in 2.39 (maybe)
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Patch11: binutils-fix-testsuite-failures.patch
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# Purpose: Stop gold from aborting when input sections with the same name
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# have different flags.
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# Lifetime: Fixed in 2.38 (maybe)
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# Lifetime: Fixed in 2.39 (maybe)
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Patch12: binutils-gold-mismatched-section-flags.patch
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# Purpose: Add a check to the GOLD linker for a corrupt input file
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# with a fuzzed section offset.
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# Lifetime: Fixed in 2.38 (maybe)
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# Lifetime: Fixed in 2.39 (maybe)
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Patch13: binutils-CVE-2019-1010204.patch
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# Purpose: Change the gold configuration script to only warn about
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@ -289,6 +289,10 @@ Patch19: gcc12-libtool-no-rpath.patch
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# Lifetime: Fixed in 2.39
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Patch20: binutils-section-type.patch
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# Purpose: Simplify the evaluation of assembler loc view expression chains.
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# Lifetime: Fixed in 2.39
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Patch21: binutils-gas-loc-view.patch
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#----------------------------------------------------------------------------
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Provides: bundled(libiberty)
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@ -902,6 +906,9 @@ exit 0
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#----------------------------------------------------------------------------
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%changelog
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* Wed Mar 09 2022 Nick Clifton <nickc@redhat.comn> - 2.38-4
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- Simplify the assembler's evaluation of chained .loc view expressions. (#2059646)
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* Mon Feb 28 2022 Nick Clifton <nickc@redhat.comn> - 2.38-3
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- Do not export any windows tools (if they were built). (#2057636)
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