PR symtab/17890
gdb/ChangeLog: PR symtab/17890 * dwarf2read.c (dwarf_decode_line_header): Punt if version > 4.
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@ -1,3 +1,8 @@
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2015-01-29 Doug Evans <dje@google.com>
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PR symtab/17890
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* dwarf2read.c (dwarf_decode_line_header): Punt if version > 4.
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2015-01-25 Mark Wielaard <mjw@redhat.com>
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2015-01-25 Mark Wielaard <mjw@redhat.com>
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* dwarf2read.c (checkproducer): Call producer_is_gcc.
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* dwarf2read.c (checkproducer): Call producer_is_gcc.
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@ -17136,6 +17136,8 @@ get_debug_line_section (struct dwarf2_cu *cu)
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/* Read the statement program header starting at OFFSET in
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/* Read the statement program header starting at OFFSET in
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.debug_line, or .debug_line.dwo. Return a pointer
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.debug_line, or .debug_line.dwo. Return a pointer
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to a struct line_header, allocated using xmalloc.
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to a struct line_header, allocated using xmalloc.
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Returns NULL if there is a problem reading the header, e.g., if it
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has a version we don't understand.
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NOTE: the strings in the include directory and file name tables of
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NOTE: the strings in the include directory and file name tables of
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the returned object point into the dwarf line section buffer,
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the returned object point into the dwarf line section buffer,
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@ -17200,6 +17202,14 @@ dwarf_decode_line_header (unsigned int offset, struct dwarf2_cu *cu)
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lh->statement_program_end = line_ptr + lh->total_length;
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lh->statement_program_end = line_ptr + lh->total_length;
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lh->version = read_2_bytes (abfd, line_ptr);
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lh->version = read_2_bytes (abfd, line_ptr);
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line_ptr += 2;
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line_ptr += 2;
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if (lh->version > 4)
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{
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/* This is a version we don't understand. The format could have
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changed in ways we don't handle properly so just punt. */
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complaint (&symfile_complaints,
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_("unsupported version in .debug_line section"));
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return NULL;
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}
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lh->header_length = read_offset_1 (abfd, line_ptr, offset_size);
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lh->header_length = read_offset_1 (abfd, line_ptr, offset_size);
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line_ptr += offset_size;
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line_ptr += offset_size;
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lh->minimum_instruction_length = read_1_byte (abfd, line_ptr);
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lh->minimum_instruction_length = read_1_byte (abfd, line_ptr);
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