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gdb: Remove some C compiler support leftovers

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Remove some __cplusplus checks, inline EXPORTED_CONST, and update some comments.

gdb/ChangeLog:
2016-10-06  Pedro Alves  <palves@redhat.com>

	* cp-valprint.c (vtbl_ptr_name): Write "extern const" instead of
	EXPORTED_CONST.
	* stub-termcap.c: Remove __cplusplus checks.
	* common/common-defs.h [!__cplusplus] (EXTERN_C, EXTERN_C_PUSH,
	EXTERN_C_POP): Delete.
	* common/common-exceptions.h (GDB_XCPT_SJMP): Update comments.
	(GDB_XCPT) [!__cplusplus]: Delete.
	(throw_exception, throw_exception_sjlj): Update comments.
	* guile/guile-internal.h (as_a_scm_t_subr) [!__cplusplus]: Delete.
	* guile/guile.c (extension_language_guile): Write "extern const"
	instead of EXPORTED_CONST.
	* features/feature_to_c.sh: Don't emit !__cplusplus code.  Write
	"extern const" instead of EXPORTED_CONST.
This commit is contained in:
Pedro Alves
2016-10-06 19:23:37 +01:00
parent 33fa2c6e1b
commit ddb6d63387
8 changed files with 30 additions and 44 deletions
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23
gdb/common/common-exceptions.h
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@ -119,8 +119,7 @@ struct gdb_exception
/* The different exception mechanisms that TRY/CATCH can map to. */
/* Make GDB exceptions use setjmp/longjmp behind the scenes. This is
the only mode supported when GDB is built as a C program. */
/* Make GDB exceptions use setjmp/longjmp behind the scenes. */
#define GDB_XCPT_SJMP 1
/* Make GDB exceptions use try/catch behind the scenes. */
@ -132,11 +131,7 @@ struct gdb_exception
spurious code between the TRY and the CATCH block. */
#define GDB_XCPT_RAW_TRY 3
#ifdef __cplusplus
# define GDB_XCPT GDB_XCPT_TRY
#else
# define GDB_XCPT GDB_XCPT_SJMP
#endif
#define GDB_XCPT GDB_XCPT_TRY
/* Functions to drive the sjlj-based exceptions state machine. Though
declared here by necessity, these functions should be considered
@ -305,18 +300,16 @@ struct gdb_quit_bad_alloc
/* *INDENT-ON* */
/* Throw an exception (as described by "struct gdb_exception"). When
GDB is built as a C program, executes a LONG JUMP to the inner most
containing exception handler established using TRY/CATCH. When
built as a C++ program, throws a C++ exception, using "throw". */
/* Throw an exception (as described by "struct gdb_exception"),
landing in the inner most containing exception handler established
using TRY/CATCH. */
extern void throw_exception (struct gdb_exception exception)
ATTRIBUTE_NORETURN;
/* Throw an exception by executing a LONG JUMP to the inner most
containing exception handler established using TRY_SJLJ. Works the
same regardless of whether GDB is built as a C program or a C++
program. Necessary in some cases where we need to throw GDB
exceptions across third-party library code (e.g., readline). */
containing exception handler established using TRY_SJLJ. Necessary
in some cases where we need to throw GDB exceptions across
third-party library code (e.g., readline). */
extern void throw_exception_sjlj (struct gdb_exception exception)
ATTRIBUTE_NORETURN;