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gas/ELF: also reject merge entity size being zero

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This won't have any useful effect, so is at best marginally less bogus
than a negative value.

The change actually points out a flawed (for Arm) testcase: @ is a
comment character there.
This commit is contained in:
Jan Beulich 2024-11-18 11:35:57 +01:00
parent 76445f36a2
commit d5cbf916be
2 changed files with 2 additions and 2 deletions
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2
binutils/testsuite/binutils-all/debug_str.s
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@ -8,5 +8,5 @@
resulting size was gigantic and consequently the library quickly ran out resulting size was gigantic and consequently the library quickly ran out
of memory. */ of memory. */
.section .debug_str,"MS",@progbits,1 .section .debug_str,"MS",%progbits,1
.string "ZLIB_VER_SUBREVISION 0" .string "ZLIB_VER_SUBREVISION 0"

2
gas/config/obj-elf.c
View File

@ -1327,7 +1327,7 @@ obj_elf_section (int push)
goto fetch_entsize; goto fetch_entsize;
entsize = get_absolute_expression (); entsize = get_absolute_expression ();
SKIP_WHITESPACE (); SKIP_WHITESPACE ();
if (entsize < 0) if (entsize <= 0)
{ {
as_warn (_("invalid merge entity size")); as_warn (_("invalid merge entity size"));
attr &= ~SHF_MERGE; attr &= ~SHF_MERGE;