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Alex Coplan d27aad4ec3 gas: Fix internal error on long local labels
Prior to this commit, on an input such as "88888888888:", GAS hits a
signed integer overflow and likely an assertion failure. I see:

$ echo "88888888888:" | bin/aarch64-none-elf-as
{standard input}: Assembler messages:
{standard input}:1: Internal error in fb_label_name at ../gas/symbols.c:2049.
Please report this bug.

To fix this issue, I've taken two steps:

1. Change the type used for processing local labels in
   read_a_source_file() from int to long, to allow representing more
   local labels, and also since all uses of this variable (temp) are
   actually of type long.

2. Detect if we would overflow and bail out with an error message
   instead of actually overflowing and hitting the assertion in
   fb_label_name().

gas/ChangeLog:

2020-08-06  Alex Coplan  <alex.coplan@arm.com>

	* read.c (read_a_source_file): Use long for local labels, detect
	overflow and raise an error for overly-long labels.
	* testsuite/gas/all/gas.exp: Add local-label-overflow test.
	* testsuite/gas/all/local-label-overflow.d: New test.
	* testsuite/gas/all/local-label-overflow.l: Error output.
	* testsuite/gas/all/local-label-overflow.s: Input.
2020-08-06 17:39:03 +01:00
bfd bpf: relocation fixes for eBPF ELF backend 2020-08-06 15:14:54 +02:00
binutils Revert "PR26337, Malloc size error in objdump" 2020-08-05 17:40:02 +09:30
config Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
contrib
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gas gas: Fix internal error on long local labels 2020-08-06 17:39:03 +01:00
gdb amd64_analyze_prologue: fix incorrect comment 2020-08-06 11:04:53 -04:00
gdbserver Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
gdbsupport Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
gnulib Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
gold [GOLD] Power10 stub selection 2020-07-27 22:31:37 +09:30
gprof Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
include For DWARF v5 Dwarf Package Files (.dwp files), the section identifier encodings have changed. This patch updates dwarf2.h to contain the new encodings. (see http://dwarfstd.org/doc/DWARF5.pdf, section 7.3.5). 2020-07-29 16:33:07 +01:00
intl
ld bpf: relocation fixes for eBPF ELF backend 2020-08-06 15:14:54 +02:00
libctf libctf: compilation failure on MinGW due to missing errno values 2020-07-26 16:11:36 -07:00
libdecnumber Run autoreconf -vf throughout 2020-07-29 16:03:55 -04:00
libiberty
opcodes Z8k: fix sout/soudb opcodes with direct address 2020-08-04 22:31:42 +02:00
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sim MSP430: sim: Fix incorrect simulation of unsigned widening multiply 2020-08-05 15:02:30 +01:00
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ChangeLog PKG_CHECK_MODULES: Check if $pkg_cv_[]$1[]_LIBS works 2020-07-28 03:56:34 -07:00
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		   README for GNU development tools

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