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| author | Jozef Lawrynowicz <jozef.l@somniumtech.com> | 2017-08-29 17:18:43 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2017-08-29 17:18:43 +0100 |
| commit | 7ef3addbe195b6283d0baf59e081146dfb211c97 (patch) | |
| tree | c201cf7915b7d05e32742dc90d4c0716e62babcf /gas/doc | |
| parent | 3819af136deb7ba6bc2058d7848cf80b33dbe51c (diff) | |
| download | gdb-7ef3addbe195b6283d0baf59e081146dfb211c97.zip gdb-7ef3addbe195b6283d0baf59e081146dfb211c97.tar.gz gdb-7ef3addbe195b6283d0baf59e081146dfb211c97.tar.bz2 | |
Improve MSP430 section placement.
ld * emultempl/msp430.em (change_output_section): New function.
(move_prefixed_section): New function.
(add_region_prefix): New function.
(msp430_elf_after_open): New function.
(gld${EMULATION_NAME}_add_options): Implement.
(gld${EMULATION_NAME}_list_options): Implement.
(gld${EMULATION_NAME}_handle_option): Implement.
* ld.texinfo: Document new options.
* testsuite/ld-msp430-elf/main-bss-lower.d: New.
* testsuite/ld-msp430-elf/main-bss-upper.d: New.
* testsuite/ld-msp430-elf/main-const-lower.d: New.
* testsuite/ld-msp430-elf/main-const-upper.d: New.
* testsuite/ld-msp430-elf/main-text-lower.d: New.
* testsuite/ld-msp430-elf/main-text-upper.d: New.
* testsuite/ld-msp430-elf/main-var-lower.d: New.
* testsuite/ld-msp430-elf/main-var-upper.d: New.
* testsuite/ld-msp430-elf/main-with-data-bss-unique-sec.s: New.
* testsuite/ld-msp430-elf/main-with-data-bss.s: New.
* testsuite/ld-msp430-elf/main-with-text-rodata-unique-sec.s: New.
* testsuite/ld-msp430-elf/main-with-text-rodata.s: New.
* testsuite/ld-msp430-elf/msp430-elf.exp: New.
* testsuite/ld-msp430-elf/msp430-no-lower.ld: New.
* testsuite/ld-msp430-elf/msp430.ld: New.
* emultempl/msp430.em (data_statement_size): New.
(eval_upper_either_sections): New.
(eval_lower_either_sections): New.
(intermediate_relax_sections): New.
(msp430_elf_after_allocation): New.
* emultempl/msp430.em (gld${EMULATION_NAME}_place_orphan): Always
place sections in the lower region.
gas * config/tc-msp430.c (md_parse_option): Define high data and high
bss symbols if -mdata-region is passed.
Define -mdata-region open.
* doc/c-msp430.texi: Document -mdata-region.
* testsuite/gas/msp430/high-data-bss-sym.d: New test.
* testsuite/gas/msp430/high-data-bss-sym.s: New.
* testsuite/gas/msp430/msp430.exp: Add -mdata-region tests.
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/c-msp430.texi | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gas/doc/c-msp430.texi b/gas/doc/c-msp430.texi index eb0e757..d80f540 100644 --- a/gas/doc/c-msp430.texi +++ b/gas/doc/c-msp430.texi @@ -107,6 +107,19 @@ disables warnings about missing NOP instructions. mark the object file as one that requires data to copied from ROM to RAM at execution startup. Disabled by default. +@item -mdata-region=@var{region} +Select the region data will be placed in. +Region placement is performed by the compiler and linker. The only effect this +option will have on the assembler is that if @var{upper} or @var{either} is +selected, then the symbols to initialise high data and bss will be defined. +Valid @var{region} values are: +@table @code +@item none +@item lower +@item upper +@item either +@end table + @end table @node MSP430 Syntax |