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gdb: Add sparc*-*-linux catch syscall support.

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2010-02-24  David S. Miller  <davem@davemloft.net>

	* gdb_ptrace.h (PT_SYSCALL): If PTRACE_SYSCALL is available, use it.
	* syscalls/sparc-linux.xml: New.
	* syscalls/sparc64-linux.xml: New.
	* Makefile.in (XML_SYSCALL_FILES): Add new syscall XML files.
	* sparc-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC32): Define.
	(sparc32_linux_get_syscall_number): New function.
	(sparc32_linux_init_abi): Set syscall XML file name and hook up
	syscall number fetcher.
	* sparc64-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC64): Define.
	(sparc64_linux_get_syscall_number): New function.
	(sparc64_linux_init_abi): Set syscall XML file name and hook up
	syscall number fetcher.
This commit is contained in:
David S. Miller
2010-02-24 15:14:31 +00:00
parent c060226ad0
commit 09de9781bd
7 changed files with 752 additions and 2 deletions
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30
gdb/sparc64-linux-tdep.c
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@@ -31,6 +31,10 @@
#include "symtab.h"
#include "trad-frame.h"
#include "tramp-frame.h"
#include "xml-syscall.h"
/* The syscall's XML filename for sparc 64-bit. */
#define XML_SYSCALL_FILENAME_SPARC64 "syscalls/sparc64-linux.xml"
#include "sparc64-tdep.h"
@@ -205,6 +209,27 @@ sparc64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
regcache_cooked_write_unsigned (regcache, SPARC64_STATE_REGNUM, state);
}
static LONGEST
sparc64_linux_get_syscall_number (struct gdbarch *gdbarch,
ptid_t ptid)
{
struct regcache *regcache = get_thread_regcache (ptid);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* The content of a register. */
gdb_byte buf[8];
/* The result. */
LONGEST ret;
/* Getting the system call number from the register.
When dealing with the sparc architecture, this information
is stored at the %g1 register. */
regcache_cooked_read (regcache, SPARC_G1_REGNUM, buf);
ret = extract_signed_integer (buf, 8, byte_order);
return ret;
}
static void
@@ -244,6 +269,11 @@ sparc64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdep->step_trap = sparc64_linux_step_trap;
set_gdbarch_write_pc (gdbarch, sparc64_linux_write_pc);
/* Functions for 'catch syscall'. */
set_xml_syscall_file_name (XML_SYSCALL_FILENAME_SPARC64);
set_gdbarch_get_syscall_number (gdbarch,
sparc64_linux_get_syscall_number);
}