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author | Amaury Pouly <amaury.pouly@gmail.com> | 2012-04-02 15:11:21 +0200 |
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committer | Amaury Pouly <amaury.pouly@gmail.com> | 2012-04-06 13:46:32 +0200 |
commit | f33330c0ff90adad8855250877a4a3d0a407bba4 (patch) | |
tree | 6b5ad86aeb2e6b0a57f78965e59c618b4a26f30f /firmware/target/arm/imx31/crt0.S | |
parent | bb0e4cc543e4c7bed6dff3a41d092b6867632535 (diff) | |
download | rockbox-f33330c0ff90adad8855250877a4a3d0a407bba4.tar.gz rockbox-f33330c0ff90adad8855250877a4a3d0a407bba4.zip |
arm: factor all exception handlers out of the crt0.S files
Remove the implementations of all exceptions handlers from the
various crt0.S files and have a single implementation in system-arm.h
The new implementation is weak so that it can be overwritten by some
specific code (like the unwinder)
Change-Id: Ib3e041ed6037376bbe0e79286057e1051640dd90
Reviewed-on: http://gerrit.rockbox.org/205
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>
Diffstat (limited to 'firmware/target/arm/imx31/crt0.S')
-rw-r--r-- | firmware/target/arm/imx31/crt0.S | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/firmware/target/arm/imx31/crt0.S b/firmware/target/arm/imx31/crt0.S index 1c1ae55736..4e489800d4 100644 --- a/firmware/target/arm/imx31/crt0.S +++ b/firmware/target/arm/imx31/crt0.S | |||
@@ -326,35 +326,6 @@ remap_end: | |||
326 | .word 0 @ fiq_handler | 326 | .word 0 @ fiq_handler |
327 | #endif /* BOOTLOADER */ | 327 | #endif /* BOOTLOADER */ |
328 | 328 | ||
329 | .text | ||
330 | |||
331 | /* All illegal exceptions call into UIE with exception address as first | ||
332 | * parameter. This is calculated differently depending on which exception | ||
333 | * we're in. Second parameter is exception number, used for a string lookup | ||
334 | * in UIE. */ | ||
335 | undef_instr_handler: | ||
336 | sub r0, lr, #4 | ||
337 | mov r1, #0 | ||
338 | b UIE | ||
339 | |||
340 | /* We run sys mode most of the time, and should never see a software | ||
341 | * exception being thrown. Make it illegal and call UIE. */ | ||
342 | software_int_handler: | ||
343 | reserved_handler: | ||
344 | sub r0, lr, #4 | ||
345 | mov r1, #4 | ||
346 | b UIE | ||
347 | |||
348 | prefetch_abort_handler: | ||
349 | sub r0, lr, #4 | ||
350 | mov r1, #1 | ||
351 | b UIE | ||
352 | |||
353 | data_abort_handler: | ||
354 | sub r0, lr, #8 | ||
355 | mov r1, #2 | ||
356 | b UIE | ||
357 | |||
358 | /* 256 words of IRQ stack */ | 329 | /* 256 words of IRQ stack */ |
359 | .section .bss | 330 | .section .bss |
360 | .balign 32 | 331 | .balign 32 |