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authorSteven Bosscher <steven@gcc.gnu.org>2012-06-25 13:09:42 +0000
committerSteven Bosscher <steven@gcc.gnu.org>2012-06-25 13:09:42 +0000
commit39ce30d841a90473fc5aeefe4dc6081c1966375d (patch)
treead3d9be34ddb16b21b5cd6ba654e740ab02d232f /gcc/doc/tm.texi.in
parent4e523f332518b5b2d04ffc9782a443e49944b49c (diff)
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v850.c: Remove redundant extern declarations for last_assemble_variable_decl and...
* config/v850/v850.c: Remove redundant extern declarations for last_assemble_variable_decl and size_directive_output. * doc/tm.texi.in: Document JMP_BUF_SIZE. * doc/tm.texi: Regenerate. * config/sparc/sparc.h (JMP_BUF_SIZE): Do not define. * config/pa/pa.h (JMP_BUF_SIZE): Likewise. * config/stormy16/stormy16.h: Likewise. * config/picochip/picochip.c: Do not define DONT_USE_BUILTIN_SETJMP. * doc/sourcebuild.texi: Add missing subdirectories. From-SVN: r188933
Diffstat (limited to 'gcc/doc/tm.texi.in')
-rw-r--r--gcc/doc/tm.texi.in8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index 3bf211c..5d2a0b1 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -8856,6 +8856,14 @@ should use the @code{setjmp}/@code{longjmp} functions from the C library
instead of the @code{__builtin_setjmp}/@code{__builtin_longjmp} machinery.
@end defmac
+@defmac JMP_BUF_SIZE
+This macro has no effect unless @code{DONT_USE_BUILTIN_SETJMP} is also
+defined. Define this macro if the default size of @code{jmp_buf} buffer
+for the @code{setjmp}/@code{longjmp}-based exception handling mechanism
+is not large enough, or if it is much too large.
+The default size is @code{FIRST_PSEUDO_REGISTER * sizeof(void *)}.
+@end defmac
+
@defmac DWARF_CIE_DATA_ALIGNMENT
This macro need only be defined if the target might save registers in the
function prologue at an offset to the stack pointer that is not aligned to