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Jozef Lawrynowicz 64b63c2993 MSP430: Fix alignment of __*_array_start symbols in default linker script
__{preinit,init,fini}_array_start symbols must be word aligned in
linker scripts. If the section preceding the __*_array_start symbol
has an odd size, then a NULL byte will be present between the start
symbol and the .*_array section itself, when the section gets
automatically word-aligned.

This results in a branch to an invalid address when the CRT startup
code tries to run through the functions listed in the array sections.

Some MSP430 linker scripts do not align the __*_array start symbols, so
this added warning will catch that problem and help the user avoid
the potential incorrect execution of the program.

ld/ChangeLog:

	* emultempl/msp430.em (input_section_exists): New.
	(check_array_section_alignment): New.
	(gld${EMULATION_NAME}_finish): New.
	* scripttempl/elf32msp430.sc: Add ALIGN directives before the
	definition of __*_array_start symbols.
	* testsuite/ld-msp430-elf/finiarray-warn.ld: New test.
	* testsuite/ld-msp430-elf/finiarray-warn.r: New test.
	* testsuite/ld-msp430-elf/initarray-nowarn.ld: New test.
	* testsuite/ld-msp430-elf/initarray-warn.ld: New test.
	* testsuite/ld-msp430-elf/initarray-warn.r: New test.
	* testsuite/ld-msp430-elf/initarray.s: New test.
	* testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests.
	* testsuite/ld-msp430-elf/preinitarray-warn.ld: New test.
	* testsuite/ld-msp430-elf/preinitarray-warn.r: New test.
2020-08-28 14:01:10 +01:00
bfd PR26418 UBSAN: cache.c:386 null pointer fwrite 2020-08-28 21:59:29 +09:30
binutils CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
config Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
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cpu bpf: add xBPF ISA 2020-08-26 15:39:00 +02:00
elfcpp CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
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gas CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
gdb [gdb/breakpoint] Handle setting breakpoint on label without address 2020-08-28 12:02:20 +02:00
gdbserver gdb: allow specifying multiple filters when running selftests 2020-08-13 07:55:48 -04:00
gdbsupport gdb: allow specifying multiple filters when running selftests 2020-08-13 07:55:48 -04:00
gnulib Update gnulib to current trunk 2020-08-26 15:37:28 -07:00
gold PowerPC TPREL_HA/LO optimisation 2020-08-24 21:15:06 +09:30
gprof Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
include CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
intl
ld MSP430: Fix alignment of __*_array_start symbols in default linker script 2020-08-28 14:01:10 +01:00
libctf libctf, binutils, include, ld: gettextize and improve error handling 2020-08-27 13:15:43 +01:00
libdecnumber Run autoreconf -vf throughout 2020-07-29 16:03:55 -04:00
libiberty Sync config, include and libiberty with GCC 2020-06-24 16:52:48 -07:00
opcodes CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
readline Update readline/README to mention patchlevel 2020-06-30 15:17:07 -06:00
sim sim/bfin: include config/pkg.m4 in configure.ac 2020-08-21 11:55:08 -04:00
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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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configure config/debuginfod.m4: Use PKG_CHECK_MODULES 2020-07-24 15:16:20 -04:00
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		   README for GNU development tools

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