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author | bde <bde@FreeBSD.org> | 2002-02-03 09:13:58 +0000 |
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committer | bde <bde@FreeBSD.org> | 2002-02-03 09:13:58 +0000 |
commit | 02ad3c7acac134e55beffbe42c345bc6f4b19d09 (patch) | |
tree | 5b287d6f54543df4565e79db5ade17a30aa455b6 /bin/test | |
parent | c41b30278b448bd9b788cceefb4d33e5084e52f8 (diff) | |
download | FreeBSD-src-02ad3c7acac134e55beffbe42c345bc6f4b19d09.zip FreeBSD-src-02ad3c7acac134e55beffbe42c345bc6f4b19d09.tar.gz |
Use osigreturn(2) instead of sigreturn(2) plus broken magic for returning
from old signal handlers. This is simpler and faster, and fixes (new)
sigreturn(2) when %eip in the new signal context happens to match the
magic value (0x1d516). 0x1d516 is below the default ELF text section,
so this probably never broken anything in practice.
locore.s:
In addition, don't build the signal trampoline for old signal handlers
when it is not used.
alpha:
Not fixed, but seems to be even less broken in practice due to more
advanced magic. A false match occurs for register #32 in mc_regs[].
Since there is no hardware register #32, a false match is only possible
for direct calls to sigreturn(2) that happen to have the magic number
in the spare mc_regs[32] field.
Diffstat (limited to 'bin/test')
0 files changed, 0 insertions, 0 deletions