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[PATCH 15/17] SPARC support
- From: Sergio Durigan Junior <sergiodj at redhat dot com>
- To: GDB Patches <gdb-patches at sourceware dot org>
- Cc: Sergio Durigan Junior <sergiodj at redhat dot com>
- Date: Mon, 1 Jul 2013 04:42:23 -0300
- Subject: [PATCH 15/17] SPARC support
- References: <1372664545-3947-1-git-send-email-sergiodj at redhat dot com>
Support for SPARC. It does not share some signal numbers, therefore
there is the target-specific implementation for them.
2013-07-01 Sergio Durigan Junior <sergiodj@redhat.com>
* sparc-linux-tdep.c: Define enum with differences between SPARC
and x86 signal numbers.
(sparc32_linux_gdb_signal_to_target): New function.
(sparc32_linux_init_abi): Set gdbarch_gdb_signal_to_target to
sparc32_linux_gdb_signal_to_target.
---
gdb/sparc-linux-tdep.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 83 insertions(+)
diff --git a/gdb/sparc-linux-tdep.c b/gdb/sparc-linux-tdep.c
index 02c4137..6d33b28 100644
--- a/gdb/sparc-linux-tdep.c
+++ b/gdb/sparc-linux-tdep.c
@@ -90,6 +90,31 @@ static const struct tramp_frame sparc32_linux_rt_sigframe =
sparc32_linux_sigframe_init
};
+/* This enum represents the signals' numbers on the SPARC
+ architecture. It just contains the signal definitions which are
+ different from x86.
+
+ It is derived from the file <arch/sparc/include/uapi/asm/signal.h>,
+ from the Linux kernel tree. */
+
+enum
+ {
+ SPARC_LINUX_SIGEMT = 7,
+ SPARC_LINUX_SIGBUS = 10,
+ SPARC_LINUX_SIGSYS = 12,
+ SPARC_LINUX_SIGURG = 16,
+ SPARC_LINUX_SIGSTOP = 17,
+ SPARC_LINUX_SIGTSTP = 18,
+ SPARC_LINUX_SIGCONT = 19,
+ SPARC_LINUX_SIGCHLD = 20,
+ SPARC_LINUX_SIGIO = 23,
+ SPARC_LINUX_SIGPOLL = SPARC_LINUX_SIGIO,
+ SPARC_LINUX_SIGLOST = 29,
+ SPARC_LINUX_SIGPWR = SPARC_LINUX_SIGLOST,
+ SPARC_LINUX_SIGUSR1 = 30,
+ SPARC_LINUX_SIGUSR2 = 31,
+ };
+
static void
sparc32_linux_sigframe_init (const struct tramp_frame *self,
struct frame_info *this_frame,
@@ -268,6 +293,61 @@ sparc32_linux_get_syscall_number (struct gdbarch *gdbarch,
return ret;
}
+/* Implementation of `gdbarch_gdb_signal_to_target', as defined in
+ gdbarch.h. */
+
+static int
+sparc32_linux_gdb_signal_to_target (struct gdbarch *gdbarch,
+ enum gdb_signal signal)
+{
+ switch (signal)
+ {
+ case GDB_SIGNAL_EMT:
+ return SPARC_LINUX_SIGEMT;
+
+ case GDB_SIGNAL_BUS:
+ return SPARC_LINUX_SIGBUS;
+
+ case GDB_SIGNAL_SYS:
+ return SPARC_LINUX_SIGSYS;
+
+ case GDB_SIGNAL_URG:
+ return SPARC_LINUX_SIGURG;
+
+ case GDB_SIGNAL_STOP:
+ return SPARC_LINUX_SIGSTOP;
+
+ case GDB_SIGNAL_TSTP:
+ return SPARC_LINUX_SIGTSTP;
+
+ case GDB_SIGNAL_CONT:
+ return SPARC_LINUX_SIGCONT;
+
+ case GDB_SIGNAL_CHLD:
+ return SPARC_LINUX_SIGCHLD;
+
+ case GDB_SIGNAL_IO:
+ return SPARC_LINUX_SIGIO;
+
+ case GDB_SIGNAL_POLL:
+ return SPARC_LINUX_SIGPOLL;
+
+ case GDB_SIGNAL_LOST:
+ return SPARC_LINUX_SIGLOST;
+
+ case GDB_SIGNAL_PWR:
+ return SPARC_LINUX_SIGPWR;
+
+ case GDB_SIGNAL_USR1:
+ return SPARC_LINUX_SIGUSR1;
+
+ case GDB_SIGNAL_USR2:
+ return SPARC_LINUX_SIGUSR2;
+ }
+
+ return linux_gdb_signal_to_target (gdbarch, signal);
+}
+
static void
@@ -313,6 +393,9 @@ sparc32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_xml_syscall_file_name (XML_SYSCALL_FILENAME_SPARC32);
set_gdbarch_get_syscall_number (gdbarch,
sparc32_linux_get_syscall_number);
+
+ set_gdbarch_gdb_signal_to_target (gdbarch,
+ sparc32_linux_gdb_signal_to_target);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
--
1.7.11.7