diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2006-11-25 00:38:14 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2006-11-25 00:38:14 +0000 |
| commit | 9f17e2a6cded940f18630a4f6612f47e7e2f9c03 (patch) | |
| tree | c83397837349e56175e534815631343424422402 /bfd/elf.c | |
| parent | b30697a1361b90003b9aaf2d7f81030934c969a1 (diff) | |
| download | gdb-9f17e2a6cded940f18630a4f6612f47e7e2f9c03.zip gdb-9f17e2a6cded940f18630a4f6612f47e7e2f9c03.tar.gz gdb-9f17e2a6cded940f18630a4f6612f47e7e2f9c03.tar.bz2 | |
2006-11-24 H.J. Lu <hongjiu.lu@intel.com>
* elf.c (IS_SECTION_IN_INPUT_SEGMENT): New.
(INCLUDE_SECTION_IN_SEGMENT): Use IS_SECTION_IN_INPUT_SEGMENT.
(rewrite_elf_program_header): Don't preserve segment physical
address in the output segment if the first section in the
corresponding input segment is removed.
Diffstat (limited to 'bfd/elf.c')
| -rw-r--r-- | bfd/elf.c | 35 |
1 files changed, 29 insertions, 6 deletions
@@ -5257,13 +5257,12 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. 8. PT_DYNAMIC should not contain empty sections at the beginning (with the possible exception of .dynamic). */ -#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ +#define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ ((((segment->p_paddr \ ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ : IS_CONTAINED_BY_VMA (section, segment)) \ && (section->flags & SEC_ALLOC) != 0) \ || IS_COREFILE_NOTE (segment, section)) \ - && section->output_section != NULL \ && segment->p_type != PT_GNU_STACK \ && (segment->p_type != PT_TLS \ || (section->flags & SEC_THREAD_LOCAL)) \ @@ -5279,6 +5278,12 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) == 0)) \ && ! section->segment_mark) +/* If the output section of a section in the input segment is NULL, + it is removed from the corresponding output segment. */ +#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ + (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ + && section->output_section != NULL) + /* Returns TRUE iff seg1 starts after the end of seg2. */ #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ (seg1->field >= SEGMENT_END (seg2, seg2->field)) @@ -5386,16 +5391,27 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) bfd_vma suggested_lma; unsigned int j; bfd_size_type amt; + asection * first_section; if (segment->p_type == PT_NULL) continue; + first_section = NULL; /* Compute how many sections might be placed into this segment. */ for (section = ibfd->sections, section_count = 0; section != NULL; section = section->next) - if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) - ++section_count; + { + /* Find the first section in the input segment, which may be + removed from the corresponding output segment. */ + if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) + { + if (first_section == NULL) + first_section = section; + if (section->output_section != NULL) + ++section_count; + } + } /* Allocate a segment map big enough to contain all of the sections we have selected. */ @@ -5411,8 +5427,14 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) map->p_type = segment->p_type; map->p_flags = segment->p_flags; map->p_flags_valid = 1; - map->p_paddr = segment->p_paddr; - map->p_paddr_valid = 1; + /* If the first section in the input segment is removed, there is + no need to preserve segment physical address in the corresponding + output segment. */ + if (first_section->output_section != NULL) + { + map->p_paddr = segment->p_paddr; + map->p_paddr_valid = 1; + } /* Determine if this segment contains the ELF file header and if it contains the program headers themselves. */ @@ -5742,6 +5764,7 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) #undef IS_CONTAINED_BY_LMA #undef IS_COREFILE_NOTE #undef IS_SOLARIS_PT_INTERP +#undef IS_SECTION_IN_INPUT_SEGMENT #undef INCLUDE_SECTION_IN_SEGMENT #undef SEGMENT_AFTER_SEGMENT #undef SEGMENT_OVERLAPS |