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authorRich Felker <dalias@aerifal.cx>2013-07-24 02:17:02 -0400
committerRich Felker <dalias@aerifal.cx>2013-07-24 02:17:02 -0400
commit9693501c158d68431962938cb02e7d8d2ef89ca3 (patch)
tree2596b176d5dfe6f05854a86286d52d2a233b0354 /arch/x86_64
parent4a30ba5ca4072e85e42e84547572e958871952a2 (diff)
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change jmp_buf to share an underlying type and struct tag with sigjmp_buf
this is necessary to meet the C++ ABI target. alternatives were
considered to avoid the size increase for non-sig jmp_buf objects, but
they seemed to have worse properties. moreover, the relative size
increase is only extreme on x86[_64]; one way of interpreting this is
that, if the size increase from this patch makes jmp_buf use too much
memory, then the program was already using too much memory when built
for non-x86 archs.
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/bits/setjmp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/bits/setjmp.h b/arch/x86_64/bits/setjmp.h
index 81d4968a..63973a80 100644
--- a/arch/x86_64/bits/setjmp.h
+++ b/arch/x86_64/bits/setjmp.h
@@ -1 +1 @@
-typedef unsigned long jmp_buf[8];
+typedef unsigned long __jmp_buf[8];