From eac7440d805bec68f583db395aa42c38615daf14 Mon Sep 17 00:00:00 2001 From: Andrew Burgess Date: Sat, 22 Nov 2014 23:19:31 +0000 Subject: [PATCH] AVR: Only set link-relax elf flag when appropriate. The AVR target uses a bit in the elf header flags to indicate if the object was assembled ready for linker relaxation. Previously this flag was always set, even when the object was not assembled ready for linker relaxation. This patch moves setting of the flag into the assembler, and sets it only when the assembler is preparing the file for linker relaxation. bfd/ChangeLog: * elf32-avr.c (bfd_elf_avr_final_write_processing): Don't set EF_AVR_LINKRELAX_PREPARED unconditionally. gas/ChangeLog: * config/tc-avr.c: Add include for elf/avr.h. (avr_elf_final_processing): New function. * config/tc-avr.h (elf_tc_final_processing): Define. (avr_elf_final_processing): Declare gas/testsuite/ChangeLog: * gas/avr/link-relax-elf-flag-clear.d: New file. * gas/avr/link-relax-elf-flag-set.d: New file. * gas/avr/link-relax-elf-flag.s: New file. --- bfd/ChangeLog | 5 +++++ bfd/elf32-avr.c | 1 - gas/ChangeLog | 7 +++++++ gas/config/tc-avr.c | 9 ++++++++- gas/config/tc-avr.h | 3 +++ gas/testsuite/ChangeLog | 6 ++++++ gas/testsuite/gas/avr/link-relax-elf-flag-clear.d | 10 ++++++++++ gas/testsuite/gas/avr/link-relax-elf-flag-set.d | 10 ++++++++++ gas/testsuite/gas/avr/link-relax-elf-flag.s | 4 ++++ 9 files changed, 53 insertions(+), 2 deletions(-) create mode 100644 gas/testsuite/gas/avr/link-relax-elf-flag-clear.d create mode 100644 gas/testsuite/gas/avr/link-relax-elf-flag-set.d create mode 100644 gas/testsuite/gas/avr/link-relax-elf-flag.s diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 4bb379b..8e6fa09 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2014-12-23 Andrew Burgess + + * elf32-avr.c (bfd_elf_avr_final_write_processing): Don't set + EF_AVR_LINKRELAX_PREPARED unconditionally. + 2014-12-23 Alan Modra * elflink.c (_bfd_elf_define_linkage_sym): Set linker_def. diff --git a/bfd/elf32-avr.c b/bfd/elf32-avr.c index 3d52940..6333855 100644 --- a/bfd/elf32-avr.c +++ b/bfd/elf32-avr.c @@ -1522,7 +1522,6 @@ bfd_elf_avr_final_write_processing (bfd *abfd, elf_elfheader (abfd)->e_machine = EM_AVR; elf_elfheader (abfd)->e_flags &= ~ EF_AVR_MACH; elf_elfheader (abfd)->e_flags |= val; - elf_elfheader (abfd)->e_flags |= EF_AVR_LINKRELAX_PREPARED; } /* Set the right machine number. */ diff --git a/gas/ChangeLog b/gas/ChangeLog index 0df23d9..d5c489a 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,10 @@ +2014-12-23 Andrew Burgess + + * config/tc-avr.c: Add include for elf/avr.h. + (avr_elf_final_processing): New function. + * config/tc-avr.h (elf_tc_final_processing): Define. + (avr_elf_final_processing): Declare + 2014-12-18 Xingxing Pan * gas/config/tc-arm.c (arm_cpus): Add core marvell-whitney. diff --git a/gas/config/tc-avr.c b/gas/config/tc-avr.c index dfe66c6..bda0bd6 100644 --- a/gas/config/tc-avr.c +++ b/gas/config/tc-avr.c @@ -25,7 +25,7 @@ #include "subsegs.h" #include "dwarf2dbg.h" #include "dw2gencfi.h" - +#include "elf/avr.h" struct avr_opcodes_s { @@ -1848,3 +1848,10 @@ avr_allow_local_subtract (expressionS * left, them. */ return FALSE; } + +void +avr_elf_final_processing (void) +{ + if (linkrelax) + elf_elfheader (stdoutput)->e_flags |= EF_AVR_LINKRELAX_PREPARED; +} diff --git a/gas/config/tc-avr.h b/gas/config/tc-avr.h index fb596ad..81ba0fc 100644 --- a/gas/config/tc-avr.h +++ b/gas/config/tc-avr.h @@ -213,3 +213,6 @@ extern void tc_cfi_frame_initial_instructions (void); relaxation, so do not resolve such expressions in the assembler. */ #define md_allow_local_subtract(l,r,s) avr_allow_local_subtract (l, r, s) extern bfd_boolean avr_allow_local_subtract (expressionS *, expressionS *, segT); + +#define elf_tc_final_processing avr_elf_final_processing +extern void avr_elf_final_processing (void); diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index 7c76bbc..d6d6450 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2014-12-23 Andrew Burgess + + * gas/avr/link-relax-elf-flag-clear.d: New file. + * gas/avr/link-relax-elf-flag-set.d: New file. + * gas/avr/link-relax-elf-flag.s: New file. + 2014-12-19 Matthew Fortune * gas/mips/r6-64.s: Remove .align directives from LDPC diff --git a/gas/testsuite/gas/avr/link-relax-elf-flag-clear.d b/gas/testsuite/gas/avr/link-relax-elf-flag-clear.d new file mode 100644 index 0000000..88cd3c9 --- /dev/null +++ b/gas/testsuite/gas/avr/link-relax-elf-flag-clear.d @@ -0,0 +1,10 @@ +#name: AVR, check elf link-relax header flag is clear. +#as: -mmcu=avrxmega2 +#readelf: -h +#source: link-relax-elf-flag.s +#target: avr-*-* + +ELF Header: +#... + Flags: 0x66, avr:102 +#... \ No newline at end of file diff --git a/gas/testsuite/gas/avr/link-relax-elf-flag-set.d b/gas/testsuite/gas/avr/link-relax-elf-flag-set.d new file mode 100644 index 0000000..5614d3f --- /dev/null +++ b/gas/testsuite/gas/avr/link-relax-elf-flag-set.d @@ -0,0 +1,10 @@ +#name: AVR, check elf link-relax header flag is set. +#as: -mlink-relax -mmcu=avrxmega2 +#readelf: -h +#source: link-relax-elf-flag.s +#target: avr-*-* + +ELF Header: +#... + Flags: 0xe6, avr:102, link-relax +#... \ No newline at end of file diff --git a/gas/testsuite/gas/avr/link-relax-elf-flag.s b/gas/testsuite/gas/avr/link-relax-elf-flag.s new file mode 100644 index 0000000..af543e1 --- /dev/null +++ b/gas/testsuite/gas/avr/link-relax-elf-flag.s @@ -0,0 +1,4 @@ + .text + .global _start +_start: + nop -- 2.7.4