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add infcall_mmap and gcc_target_options gdbarch methods

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The compiler needed two new gdbarch methods.

The infcall_mmap method allocates memory in the inferior.
This is used when inserting the object code.

The gcc_target_options method computes some arch-specific gcc options
to pass to the compiler.  This is used to ensure that gcc generates
object code for the correct architecture.

gdb/ChangeLog
2014-12-12  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* arch-utils.c (default_infcall_mmap)
	(default_gcc_target_options): New functions.
	* arch-utils.h (GDB_MMAP_PROT_READ, GDB_MMAP_PROT_WRITE)
	(GDB_MMAP_PROT_EXEC): Define.
	(default_infcall_mmap, default_gcc_target_options): Declare.
	* gdbarch.h: Rebuild.
	* gdbarch.c: Rebuild.
	* gdbarch.sh (infcall_mmap, gcc_target_options): New methods.
This commit is contained in:
Jan Kratochvil
2014-05-14 14:08:57 -06:00
parent 233a8fb382
commit f208eee0f3
6 changed files with 110 additions and 0 deletions
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9
gdb/arch-utils.h
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@ -193,4 +193,13 @@ extern int default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *ra
module determines whether a breakpoint is permanent. */
extern void default_skip_permanent_breakpoint (struct regcache *regcache);
/* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system
definitions would be dependent on compilation host. */
#define GDB_MMAP_PROT_READ 0x1 /* Page can be read. */
#define GDB_MMAP_PROT_WRITE 0x2 /* Page can be written. */
#define GDB_MMAP_PROT_EXEC 0x4 /* Page can be executed. */
extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot);
extern char *default_gcc_target_options (struct gdbarch *gdbarch);
#endif