diff options
| author | Alan Modra <amodra@gmail.com> | 2018-08-26 14:23:38 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2018-08-26 22:45:59 +0930 |
| commit | 3d9c8f6b3f033a6092425b7344647fb51dbed5c6 (patch) | |
| tree | 20093232792f1e8061ef1a406c15505571294198 /ld/ldlang.h | |
| parent | ed60adf0a31db8ebc95edd09088465470a296671 (diff) | |
| download | gdb-3d9c8f6b3f033a6092425b7344647fb51dbed5c6.zip gdb-3d9c8f6b3f033a6092425b7344647fb51dbed5c6.tar.gz gdb-3d9c8f6b3f033a6092425b7344647fb51dbed5c6.tar.bz2 | |
Delay evaluation of alignment expressions in output sections
git commit 702d16713 broke expressions using CONSTANT(COMMONPAGESIZE)
in ALIGN or SUBALIGN of output section statements, because these
optional fields were evaluated at script parse time and the patch in
question delayed setting of config.commonpagesize. The right thing to
do is keep the tree representation of those fields for later
evaluation.
PR 23571
* ldlang.h (section_alignment): Make it an expression tree.
(subsection_alignment): Likewise.
* ldlang.c (topower): Delete.
(output_section_statement_newfunc): Adjust initialization.
(init_os): Evaluate section_alignment.
(lang_size_sections_1): Likewise.
(size_input_section): Evaluate subsection_alignment.
(lang_enter_output_section_statement): Don't evaluate here.
(lang_new_phdr): Use exp_get_vma rather than exp_get_value_int.
* ldexp.h (exp_get_value_int): Delete.
(exp_get_power): Declare.
* ldexp.c (exp_get_value_int): Delete.
(exp_get_power): New function.
* emultempl/pe.em (place_orphan): Build expression for section
alignment.
* emultempl/pep.em (place_orphan): Likewise.
* testsuite/ld-scripts/pr23571.d,
* testsuite/ld-scripts/pr23571.t: New test.
* testsuite/ld-scripts/align.exp: Run it.
Diffstat (limited to 'ld/ldlang.h')
| -rw-r--r-- | ld/ldlang.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ld/ldlang.h b/ld/ldlang.h index 3d66169..dfac0b1 100644 --- a/ld/ldlang.h +++ b/ld/ldlang.h @@ -143,6 +143,8 @@ typedef struct lang_output_section_statement_struct fill_type *fill; union etree_union *addr_tree; union etree_union *load_base; + union etree_union *section_alignment; + union etree_union *subsection_alignment; /* If non-null, an expression to evaluate after setting the section's size. The expression is evaluated inside REGION (above) with '.' @@ -153,8 +155,6 @@ typedef struct lang_output_section_statement_struct lang_output_section_phdr_list *phdrs; unsigned int block_value; - int subsection_alignment; /* Alignment of components. */ - int section_alignment; /* Alignment of start of section. */ int constraint; flagword flags; enum section_type sectype; |