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newlib-cygwin
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2009-05-13 Paul Brook <paul@codesourcery.com> 

* libc/machine/arm/setjmp.S: Don't bother saving IP.  Copy SP to
        IP before saving.  Likewise when restoring.
This commit is contained in:
Jeff Johnston 2009-05-13 18:31:55 +00:00
parent eba36c51fa
commit 5900080d7d
2 changed files with 7 additions and 2 deletions
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newlib/ChangeLog
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@ -1,3 +1,8 @@
2009-05-13 Paul Brook <paul@codesourcery.com>
* libc/machine/arm/setjmp.S: Don't bother saving IP. Copy SP to
IP before saving. Likewise when restoring.
2009-05-13 Paul Brook <paul@codesourcery.com> 2009-05-13 Paul Brook <paul@codesourcery.com>
* libc/machine/arm/setjmp.S: Add ARMv6-M implementation. * libc/machine/arm/setjmp.S: Add ARMv6-M implementation.

4
newlib/libc/machine/arm/setjmp.S
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@ -170,8 +170,8 @@ SYM (\name):
/* Save all the callee-preserved registers into the jump buffer. */ /* Save all the callee-preserved registers into the jump buffer. */
#ifdef __thumb2__ #ifdef __thumb2__
mov ip, sp
stmea a1!, { v1-v7, fp, ip, lr } stmea a1!, { v1-v7, fp, ip, lr }
str sp, [a1],#+4
#else #else
stmea a1!, { v1-v7, fp, ip, sp, lr } stmea a1!, { v1-v7, fp, ip, sp, lr }
#endif #endif
@ -198,7 +198,7 @@ SYM (\name):
/* Restore the registers, retrieving the state when setjmp() was called. */ /* Restore the registers, retrieving the state when setjmp() was called. */
#ifdef __thumb2__ #ifdef __thumb2__
ldmfd a1!, { v1-v7, fp, ip, lr } ldmfd a1!, { v1-v7, fp, ip, lr }
ldr sp, [a1],#+4 mov sp, ip
#else #else
ldmfd a1!, { v1-v7, fp, ip, sp, lr } ldmfd a1!, { v1-v7, fp, ip, sp, lr }
#endif #endif