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| author | Walfred Tedeschi <walfred.tedeschi@intel.com> | 2016-02-02 11:58:36 +0100 |
|---|---|---|
| committer | Walfred Tedeschi <walfred.tedeschi@intel.com> | 2016-02-02 11:58:36 +0100 |
| commit | 96b5c49fb18ba7ad070b0c3ad36388d56c5897fb (patch) | |
| tree | d3ceb6bede943f289341c88040700fff95c06857 | |
| parent | 190b495d472576db66a8727d5872fcca3d5519c6 (diff) | |
| download | binutils-96b5c49fb18ba7ad070b0c3ad36388d56c5897fb.zip binutils-96b5c49fb18ba7ad070b0c3ad36388d56c5897fb.tar.gz binutils-96b5c49fb18ba7ad070b0c3ad36388d56c5897fb.tar.bz2 | |
Add bound related fields to the siginfo structure
Both Linux and glibc have introduced bound related fields in the
segmentation fault fields of the siginfo_t type. Add the new fields
to our x86's siginfo_t type too.
Kernel patch:
http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=ee1b58d36aa1b5a79eaba11f5c3633c88231da83
Glibc patch:
http://repo.or.cz/w/glibc.git/commit/d4358b51c26a634eb885955aea06cad26af6f696
2016-02-02 Walfred Tedeschi <walfred.tedeschi@intel.com>
gdb/ChangeLog:
* linux-tdep.c (linux_get_siginfo_type): Add the _addr_bnd
structure to the siginfo if extra_fields contains
LINUX_SIGINFO_FIELD_ADDR_BND.
| -rw-r--r-- | gdb/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/linux-tdep.c | 16 |
2 files changed, 21 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 25f7f16..56bdc79 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,11 @@ 2016-02-02 Walfred Tedeschi <walfred.tedeschi@intel.com> + * linux-tdep.c (linux_get_siginfo_type): Add the _addr_bnd + structure to the siginfo if extra_fields contains + LINUX_SIGINFO_FIELD_ADDR_BND. + +2016-02-02 Walfred Tedeschi <walfred.tedeschi@intel.com> + * linux-tdep.h (linux_get_siginfo_type_with_fields): Make extern. * linux-tdep.c (linux_get_siginfo_type_with_fields): Make extern. * i386-linux-tdep.h (x86_linux_get_siginfo_type): New @@ -11,7 +17,6 @@ (i386_linux_init_abi): Add new function at the i386 ABI initialization. - 2016-02-02 Walfred Tedeschi <walfred.tedeschi@intel.com> * linux-tdep.h (linux_siginfo_extra_field_values): New enum values. diff --git a/gdb/linux-tdep.c b/gdb/linux-tdep.c index cfbec40..555c302 100644 --- a/gdb/linux-tdep.c +++ b/gdb/linux-tdep.c @@ -250,7 +250,7 @@ linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch, linux_siginfo_extra_fields extra_fields) { struct linux_gdbarch_data *linux_gdbarch_data; - struct type *int_type, *uint_type, *long_type, *void_ptr_type; + struct type *int_type, *uint_type, *long_type, *void_ptr_type, *short_type; struct type *uid_type, *pid_type; struct type *sigval_type, *clock_type; struct type *siginfo_type, *sifields_type; @@ -266,6 +266,8 @@ linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch, 1, "unsigned int"); long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), 0, "long"); + short_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), + 0, "short"); void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); /* sival_t */ @@ -341,6 +343,18 @@ linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch, /* _sigfault */ type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); append_composite_type_field (type, "si_addr", void_ptr_type); + + /* Additional bound fields for _sigfault in case they were requested. */ + if ((extra_fields & LINUX_SIGINFO_FIELD_ADDR_BND) != 0) + { + struct type *sigfault_bnd_fields; + + append_composite_type_field (type, "_addr_lsb", short_type); + sigfault_bnd_fields = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); + append_composite_type_field (sigfault_bnd_fields, "_lower", void_ptr_type); + append_composite_type_field (sigfault_bnd_fields, "_upper", void_ptr_type); + append_composite_type_field (type, "_addr_bnd", sigfault_bnd_fields); + } append_composite_type_field (sifields_type, "_sigfault", type); /* _sigpoll */ |