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author | Roland McGrath <roland@redhat.com> | 2010-05-20 17:04:15 -0700 |
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committer | Roland McGrath <roland@redhat.com> | 2010-05-20 17:04:15 -0700 |
commit | 844f20f64770e9ed4177aa7285c9b96a11ec7547 (patch) | |
tree | 38c73449e465eade3d36f891b9c5db2bee0e4c3b /backends/i386_cfi.c | |
parent | fb65cc365e5d51f2434128467dab554f6921727b (diff) | |
parent | a0635db0fbe13ad7b531ee99eeb063a8eded923c (diff) | |
download | elfutils-844f20f64770e9ed4177aa7285c9b96a11ec7547.tar.gz |
Merge branch 'master' into roland/notes
Conflicts:
libdw/libdw.map
libdwfl/Makefile.am
libdwfl/argp-std.c
libdwfl/core-file.c
libdwfl/libdwfl.h
libdwfl/libdwflP.h
libdwfl/linux-proc-maps.c
libelf/Makefile.am
libelf/common.h
libelf/elf_begin.c
libelf/elf_readall.c
libelf/libelf.map
libelf/libelfP.h
tests/Makefile.am
Diffstat (limited to 'backends/i386_cfi.c')
-rw-r--r-- | backends/i386_cfi.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/backends/i386_cfi.c b/backends/i386_cfi.c new file mode 100644 index 00000000..77478f7e --- /dev/null +++ b/backends/i386_cfi.c @@ -0,0 +1,65 @@ +/* i386 ABI-specified defaults for DWARF CFI. + Copyright (C) 2009 Red Hat, Inc. + This file is part of Red Hat elfutils. + + Red Hat elfutils is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by the + Free Software Foundation; version 2 of the License. + + Red Hat elfutils is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License along + with Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <dwarf.h> + +#define BACKEND i386_ +#include "libebl_CPU.h" + +int +i386_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info) +{ + static const uint8_t abi_cfi[] = + { + /* Call-saved regs. */ + DW_CFA_same_value, ULEB128_7 (3), /* %ebx */ + DW_CFA_same_value, ULEB128_7 (5), /* %ebp */ + DW_CFA_same_value, ULEB128_7 (6), /* %esi */ + DW_CFA_same_value, ULEB128_7 (7), /* %edi */ + + /* The CFA is the SP. */ + DW_CFA_val_offset, ULEB128_7 (4), ULEB128_7 (0), + + /* Segment registers are call-saved if ever used at all. */ + DW_CFA_same_value, ULEB128_7 (40), /* %es */ + DW_CFA_same_value, ULEB128_7 (41), /* %cs */ + DW_CFA_same_value, ULEB128_7 (42), /* %ss */ + DW_CFA_same_value, ULEB128_7 (43), /* %ds */ + DW_CFA_same_value, ULEB128_7 (44), /* %fs */ + DW_CFA_same_value, ULEB128_7 (45), /* %gs */ + }; + + abi_info->initial_instructions = abi_cfi; + abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi]; + abi_info->data_alignment_factor = 4; + + abi_info->return_address_register = 8; /* %eip */ + + return 0; +} |