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Commit Graph

4 Commits

Author SHA1 Message Date
Janne Grunau
71a0472114 checkasm: arm: report the first clobbered register in checkasm_checked_call 2016-07-16 12:57:18 +02:00
Janne Grunau
7b1ae0e73a checkasm/arm: preserve the stack alignment checkasm_checked_call
The stack used by checkasm_checked_call_vfp was a multiple of 4 when the
checked function is called. AAPCS requires a double word (8 byte)
aligned stack public interfaces. Since both calls are public interfaces
the stack is misaligned when the checked is called.

Might fix the SIGBUS error in the armv7-linux-clang-3.7 fate config.
2016-07-13 22:18:53 +02:00
Janne Grunau
8c816c0c9b checkasm/arm: align the clobber check data properly for ldrd
Should fix the SIGBUS in the armv7-linux-clang-3.7 fate target.
2016-07-10 13:35:41 +02:00
Martin Storsjö
26ec75aec3 checkasm: Check register clobbering on arm
Use two separate functions, depending on whether VFP/NEON is available.

This is set to require armv5te - it uses blx, which is only available
since armv5t, but we don't have a separate configure item for that.
(It also uses ldrd, which requires armv5te, but this could be avoided
if necessary.)

Signed-off-by: Martin Storsjö <martin@martin.st>
2016-01-07 09:33:24 +02:00