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CVS commit: src/lib/libc/arch/sparc64/gen

Module Name:    src
Committed By:   martin
Date:           Wed Apr 27 21:08:48 UTC 2011

Modified Files:
        src/lib/libc/arch/sparc64/gen: longjmp.c setjmp.S sigsetjmp.S

Log Message:
Fix offsets used in the assembly code to save global registers into a
jmp_buf, add a compile time assert to catch this kind of divergence
in the C code.
Move the fixed "%npc = %pc + 4" computation to longjmp, this frees
the sigcontext sc_npc value. Use this space to save the savemask
for siglongjmp (we have run out of space behind the globals).
Fixes the tests/lib/libc/setjmp/t_threadjmp tests, and also hopefully
fixes PR port-sparc64/44902.

To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/lib/libc/arch/sparc64/gen/longjmp.c
cvs rdiff -u -r1.7 -r1.8 src/lib/libc/arch/sparc64/gen/setjmp.S
cvs rdiff -u -r1.8 -r1.9 src/lib/libc/arch/sparc64/gen/sigsetjmp.S

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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