aboutsummaryrefslogtreecommitdiff
path: root/bfd/section.c
diff options
context:
space:
mode:
authorSteve Chamberlain <sac@cygnus>1993-03-30 17:40:51 +0000
committerSteve Chamberlain <sac@cygnus>1993-03-30 17:40:51 +0000
commit21c7770362ef8eee989c93e7612673cfac3c8e84 (patch)
tree07cbbe4e3eb0a23f1873fe9fcda91cea5072d47f /bfd/section.c
parent39d4b51986425bc6afea1a76bebe5cd4da48487c (diff)
downloadgdb-21c7770362ef8eee989c93e7612673cfac3c8e84.zip
gdb-21c7770362ef8eee989c93e7612673cfac3c8e84.tar.gz
gdb-21c7770362ef8eee989c93e7612673cfac3c8e84.tar.bz2
* aoutx.h (translate_from_native_sym_flags): Now handles indirect
symbols in a better way. (translate_to_native_sym_flag): Set the N_INDR bit when necessary. (aout<>slurp_symbol_table): Maintain indirect state. * section.c: Added BFD_IND_SECTION_NAME and bfd_ind_section. (bfd_make_section): Cope with new builtin section. * syms.c (bfd_decode_symclass): Can now print indirect section info.
Diffstat (limited to 'bfd/section.c')
-rw-r--r--bfd/section.c43
1 files changed, 32 insertions, 11 deletions
diff --git a/bfd/section.c b/bfd/section.c
index a5b5164..e4188a4 100644
--- a/bfd/section.c
+++ b/bfd/section.c
@@ -1,5 +1,5 @@
/* Object file "section" support for the BFD library.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
@@ -220,15 +220,13 @@ CODE_FRAGMENT
. {* The section is a constuctor, and should be placed at the
. end of the . *}
.
-.
.#define SEC_CONSTRUCTOR_TEXT 0x1100
.
.#define SEC_CONSTRUCTOR_DATA 0x2100
.
.#define SEC_CONSTRUCTOR_BSS 0x3100
.
-.
-. {* The section has contents - a bss section could be
+. {* The section has contents - a data section could be
. <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>, a debug section could be
. <<SEC_HAS_CONTENTS>> *}
.
@@ -240,7 +238,19 @@ CODE_FRAGMENT
.
.#define SEC_NEVER_LOAD 0x400
.
+. {* The section is a shared library section. The linker must leave
+. these completely alone, as the vma and size are used when
+. the executable is loaded. *}
+.
+.#define SEC_SHARED_LIBRARY 0x800
+.
+. {* The section is a common section (symbols may be defined
+. multiple times, the value of a symbol is the amount of
+. space it requires, and the largest symbol value is the one
+. used). Most targets have exactly one of these (.bss), but
+. ECOFF has two. *}
.
+.#define SEC_IS_COMMON 0x8000
.
. bfd_vma vma;
. boolean user_set_vma;
@@ -348,6 +358,7 @@ CODE_FRAGMENT
.#define BFD_ABS_SECTION_NAME "*ABS*"
.#define BFD_UND_SECTION_NAME "*UND*"
.#define BFD_COM_SECTION_NAME "*COM*"
+.#define BFD_IND_SECTION_NAME "*IND*"
.
. {* the absolute section *}
. extern asection bfd_abs_section;
@@ -355,10 +366,13 @@ CODE_FRAGMENT
. extern asection bfd_und_section;
. {* Pointer to the common section *}
. extern asection bfd_com_section;
+. {* Pointer to the indirect section *}
+. extern asection bfd_ind_section;
.
. extern struct symbol_cache_entry *bfd_abs_symbol;
. extern struct symbol_cache_entry *bfd_com_symbol;
. extern struct symbol_cache_entry *bfd_und_symbol;
+. extern struct symbol_cache_entry *bfd_ind_symbol;
.#define bfd_get_section_size_before_reloc(section) \
. (section->reloc_done ? (abort(),1): (section)->_raw_size)
.#define bfd_get_section_size_after_reloc(section) \
@@ -368,21 +382,23 @@ CODE_FRAGMENT
/* These symbols are global, not specific to any BFD. Therefore, anything
that tries to change them is broken, and should be repaired. */
static CONST asymbol global_syms[] = {
- /* bfd, name, value, attr, section [, udata] */
+ /* the_bfd, name, value, attr, section [, udata] */
{ 0, BFD_COM_SECTION_NAME, 0, BSF_SECTION_SYM, &bfd_com_section },
{ 0, BFD_UND_SECTION_NAME, 0, BSF_SECTION_SYM, &bfd_und_section },
{ 0, BFD_ABS_SECTION_NAME, 0, BSF_SECTION_SYM, &bfd_abs_section },
+ { 0, BFD_IND_SECTION_NAME, 0, BSF_SECTION_SYM, &bfd_ind_section },
};
-#define STD_SECTION(SEC,SYM,NAME, IDX) \
+#define STD_SECTION(SEC, FLAGS, SYM, NAME, IDX) \
asymbol *SYM = (asymbol *) &global_syms[IDX]; \
- asection SEC = { NAME, 0, 0, 0, 0, (boolean) 0, 0, 0, 0, &SEC,\
+ asection SEC = { NAME, 0, 0, FLAGS, 0, (boolean) 0, 0, 0, 0, &SEC,\
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (boolean) 0, \
(asymbol *) &global_syms[IDX], &SYM, }
-STD_SECTION (bfd_com_section, bfd_com_symbol, BFD_COM_SECTION_NAME, 0);
-STD_SECTION (bfd_und_section, bfd_und_symbol, BFD_UND_SECTION_NAME, 1);
-STD_SECTION (bfd_abs_section, bfd_abs_symbol, BFD_ABS_SECTION_NAME, 2);
+STD_SECTION (bfd_com_section, SEC_IS_COMMON, bfd_com_symbol, BFD_COM_SECTION_NAME, 0);
+STD_SECTION (bfd_und_section, 0, bfd_und_symbol, BFD_UND_SECTION_NAME, 1);
+STD_SECTION (bfd_abs_section, 0, bfd_abs_symbol, BFD_ABS_SECTION_NAME, 2);
+STD_SECTION (bfd_ind_section, 0, bfd_ind_symbol, BFD_IND_SECTION_NAME, 3);
#undef STD_SECTION
/*
@@ -510,6 +526,11 @@ DEFUN(bfd_make_section,(abfd, name),
{
return &bfd_und_section;
}
+
+ if (strcmp(name, BFD_IND_SECTION_NAME) == 0)
+ {
+ return &bfd_ind_section;
+ }
while (sect) {
if (!strcmp(sect->name, name)) return NULL;
@@ -730,7 +751,7 @@ DEFUN(bfd_set_section_contents,(abfd, section, location, offset, count),
{
bfd_size_type sz;
- if (!(bfd_get_section_flags(abfd, section) & SEC_HAS_CONTENTS))
+ if (!bfd_get_section_flags(abfd, section) & SEC_HAS_CONTENTS)
{
bfd_error = no_contents;
return(false);