CVS commit: src/lib/libc/arch/alpha/sys

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Wed Oct 21 01:55:07 UTC 2020

Modified Files:
        src/lib/libc/arch/alpha/sys: __sigtramp2.S

Log Message:
Add call frame unwind info to the Alpha signal trampoline.  Using
kamil@'s test program:

Before:
Backtrace 2 stack frames.
0x120000a74 <handler+0x54> at ./test
0x3fffdca6550 <__sigtramp_siginfo_2> at /usr/lib/libc.so.12

After:
Backtrace 4 stack frames.
0x120000a74 <handler+0x54> at ./test
0x3fffdca6554 <__sigtramp_siginfo_2> at /usr/lib/libc.so.12
0x120000b10 <main+0x38> at ./test
0x1200009b4 <___start+0x1a4> at ./test


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/lib/libc/arch/alpha/sys/__sigtramp2.S

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