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| author | Michal Simek <michal.simek@amd.com> | 2022-06-24 14:15:01 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@amd.com> | 2022-06-24 14:15:01 +0200 |
| commit | d58c007498258b73d9eb5e3b24973578498fc341 (patch) | |
| tree | d3d54223dd11fcbd2db4dfdb2715a9dda4aa7f62 /common/board_f.c | |
| parent | 034944b33bc8dd42dd90f9d043c5c03cc0036f01 (diff) | |
| download | u-boot-d58c007498258b73d9eb5e3b24973578498fc341.zip u-boot-d58c007498258b73d9eb5e3b24973578498fc341.tar.gz u-boot-d58c007498258b73d9eb5e3b24973578498fc341.tar.bz2 | |
microblaze: Add support for run time relocation
Microblaze is using NEEDS_MANUAL_RELOC from the beginnging. This is causing
issues with function pointer arrays which need to be updated manually after
relocation. Building code with -fPIC and linking with -pic will remove this
limitation and there is no longer need to run manual update.
By default still old option is enabled but by disabling NEEDS_MANUAL_RELOC
code will be compiled for full relocation.
The patch does couple of things which are connected to each other.
- Define STATIC_RELA dependency to call relocate-rela to fill sections.
- REMAKE_ELF was already enabled but u-boot file can't be used because
sections are empty. relocate-rela will fill them and output file is
u-boot.elf which should be used.
- Add support for full relocation (u-boot.elf)
- Add support for early relocation when u-boot.bin is loaded to different
address then CONFIG_SYS_TEXT_BASE
- Add rela.dyn and dynsym sections
Disabling NEEDS_MANUAL_RELOC U-Boot size increased by 10% of it's original
size (550kB to 608kB).
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a845670b34925859b2e321875f7588a29f6655f9.1655299267.git.michal.simek@amd.com
Diffstat (limited to 'common/board_f.c')
| -rw-r--r-- | common/board_f.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/common/board_f.c b/common/board_f.c index 51d2f3c..a5666ca 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -684,6 +684,8 @@ static int setup_reloc(void) #ifdef CONFIG_SYS_TEXT_BASE #ifdef ARM gd->reloc_off = gd->relocaddr - (unsigned long)__image_copy_start; +#elif defined(CONFIG_MICROBLAZE) + gd->reloc_off = gd->relocaddr - (u32)_start; #elif defined(CONFIG_M68K) /* * On all ColdFire arch cpu, monitor code starts always |