[PATCH 8/8] beatnik, motorola_powerpc, mvme3100, mvme5500: Simplify bsp_specs
Joel Sherrill
joel at rtems.org
Wed Dec 20 21:20:48 UTC 2017
This collection of BSPs shared the linker script shared/startup/linkcmds.
I renamed that ot shared/startup/linkcmds.share and made a BSP family
specific startup/linkcmds. This was needed because each BSP family had
a different combination of start file name, undefined symbols, etc.
Updates #3520.
---
c/src/lib/libbsp/powerpc/beatnik/Makefile.am | 3 +-
c/src/lib/libbsp/powerpc/beatnik/bsp_specs | 6 +-
c/src/lib/libbsp/powerpc/beatnik/preinstall.am | 6 +-
c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds | 5 +
.../libbsp/powerpc/motorola_powerpc/Makefile.am | 3 +-
.../lib/libbsp/powerpc/motorola_powerpc/bsp_specs | 7 +-
.../libbsp/powerpc/motorola_powerpc/preinstall.am | 6 +-
.../powerpc/motorola_powerpc/startup/linkcmds | 6 +
c/src/lib/libbsp/powerpc/mvme3100/Makefile.am | 3 +-
c/src/lib/libbsp/powerpc/mvme3100/bsp_specs | 6 +-
c/src/lib/libbsp/powerpc/mvme3100/preinstall.am | 6 +-
c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds | 5 +
c/src/lib/libbsp/powerpc/mvme5500/Makefile.am | 4 +-
c/src/lib/libbsp/powerpc/mvme5500/bsp_specs | 6 +-
c/src/lib/libbsp/powerpc/mvme5500/preinstall.am | 6 +-
c/src/lib/libbsp/powerpc/mvme5500/startup/linkcmds | 5 +
c/src/lib/libbsp/powerpc/shared/startup/linkcmds | 297 ---------------------
.../libbsp/powerpc/shared/startup/linkcmds.share | 296 ++++++++++++++++++++
18 files changed, 349 insertions(+), 327 deletions(-)
create mode 100644 c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds
create mode 100644 c/src/lib/libbsp/powerpc/motorola_powerpc/startup/linkcmds
create mode 100644 c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds
create mode 100644 c/src/lib/libbsp/powerpc/mvme5500/startup/linkcmds
delete mode 100644 c/src/lib/libbsp/powerpc/shared/startup/linkcmds
create mode 100644 c/src/lib/libbsp/powerpc/shared/startup/linkcmds.share
diff --git a/c/src/lib/libbsp/powerpc/beatnik/Makefile.am b/c/src/lib/libbsp/powerpc/beatnik/Makefile.am
index 115a79c..19d627c 100644
--- a/c/src/lib/libbsp/powerpc/beatnik/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/beatnik/Makefile.am
@@ -50,7 +50,8 @@ project_lib_DATA += motld_start.$(OBJEXT)
#startup
-dist_project_lib_DATA += ../shared/startup/linkcmds
+dist_project_lib_DATA += ../shared/startup/linkcmds.share
+dist_project_lib_DATA += startup/linkcmds
noinst_LIBRARIES = libbsp.a
libbsp_a_SOURCES =
diff --git a/c/src/lib/libbsp/powerpc/beatnik/bsp_specs b/c/src/lib/libbsp/powerpc/beatnik/bsp_specs
index c664704..99ca0ad 100644
--- a/c/src/lib/libbsp/powerpc/beatnik/bsp_specs
+++ b/c/src/lib/libbsp/powerpc/beatnik/bsp_specs
@@ -1,13 +1,9 @@
%rename endfile old_endfile
%rename startfile old_startfile
-%rename link old_link
*startfile:
%{!qrtems: %(old_startfile)} \
-%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s -e __rtems_entry_point -u __vectors motld_start.o%s}}
+%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s}}
*endfile:
%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s ecrtn.o%s}
-
-*link:
-%{!qrtems: %(old_link)} %{qrtems: -dp -Bstatic}
diff --git a/c/src/lib/libbsp/powerpc/beatnik/preinstall.am b/c/src/lib/libbsp/powerpc/beatnik/preinstall.am
index 38d9b77..a80848a 100644
--- a/c/src/lib/libbsp/powerpc/beatnik/preinstall.am
+++ b/c/src/lib/libbsp/powerpc/beatnik/preinstall.am
@@ -61,7 +61,11 @@ $(PROJECT_LIB)/motld_start.$(OBJEXT): motld_start.$(OBJEXT) $(PROJECT_LIB)/$(dir
$(INSTALL_DATA) $< $(PROJECT_LIB)/motld_start.$(OBJEXT)
TMPINSTALL_FILES += $(PROJECT_LIB)/motld_start.$(OBJEXT)
-$(PROJECT_LIB)/linkcmds: ../shared/startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
+$(PROJECT_LIB)/linkcmds.share: ../shared/startup/linkcmds.share $(PROJECT_LIB)/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.share
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds.share
+
+$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
diff --git a/c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds b/c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds
new file mode 100644
index 0000000..b30fb91
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds
@@ -0,0 +1,5 @@
+STARTUP(motld_start.o)
+ENTRY(__rtems_entry_point)
+EXTERN(__vectors)
+
+INCLUDE linkcmds.share
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am b/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am
index 0eb1a18..fb4f9ca 100644
--- a/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am
@@ -33,7 +33,8 @@ project_lib_DATA += rtems_crti.$(OBJEXT)
libbspstart_a_SOURCES += ../../powerpc/shared/start/vectors_entry.S
project_lib_DATA += vectors_entry.$(OBJEXT)
-dist_project_lib_DATA += ../shared/startup/linkcmds
+dist_project_lib_DATA += ../shared/startup/linkcmds.share
+dist_project_lib_DATA += startup/linkcmds
noinst_LIBRARIES += libbsp.a
libbsp_a_SOURCES =
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/bsp_specs b/c/src/lib/libbsp/powerpc/motorola_powerpc/bsp_specs
index 2a245e9..2625609 100644
--- a/c/src/lib/libbsp/powerpc/motorola_powerpc/bsp_specs
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/bsp_specs
@@ -1,14 +1,9 @@
%rename endfile old_endfile
%rename startfile old_startfile
-%rename link old_link
*startfile:
%{!qrtems: %(old_startfile)} \
-%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s \
- vectors_entry%O%s start.o%s -e __rtems_entry_point -u __vectors}}
+%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s}}
*endfile:
%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s ecrtn.o%s}
-
-*link:
-%{!qrtems: %(old_link)} %{qrtems: -dp -Bstatic}
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/preinstall.am b/c/src/lib/libbsp/powerpc/motorola_powerpc/preinstall.am
index 5071a2d..6396cb5 100644
--- a/c/src/lib/libbsp/powerpc/motorola_powerpc/preinstall.am
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/preinstall.am
@@ -69,7 +69,11 @@ $(PROJECT_LIB)/vectors_entry.$(OBJEXT): vectors_entry.$(OBJEXT) $(PROJECT_LIB)/$
$(INSTALL_DATA) $< $(PROJECT_LIB)/vectors_entry.$(OBJEXT)
TMPINSTALL_FILES += $(PROJECT_LIB)/vectors_entry.$(OBJEXT)
-$(PROJECT_LIB)/linkcmds: ../shared/startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
+$(PROJECT_LIB)/linkcmds.share: ../shared/startup/linkcmds.share $(PROJECT_LIB)/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.share
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds.share
+
+$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/startup/linkcmds b/c/src/lib/libbsp/powerpc/motorola_powerpc/startup/linkcmds
new file mode 100644
index 0000000..ae44032
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/startup/linkcmds
@@ -0,0 +1,6 @@
+INPUT(vectors_entry.o)
+STARTUP(start.o)
+ENTRY(__rtems_entry_point)
+EXTERN(_vectors)
+
+INCLUDE linkcmds.share
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am b/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
index a1bc9db..5f3024c 100644
--- a/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
@@ -42,7 +42,8 @@ rtems_crti.$(OBJEXT): ../../powerpc/shared/start/rtems_crti.S
$(CPPASCOMPILE) -o $@ -c $<
project_lib_DATA += rtems_crti.$(OBJEXT)
-dist_project_lib_DATA += ../shared/startup/linkcmds
+dist_project_lib_DATA += ../shared/startup/linkcmds.share
+dist_project_lib_DATA += startup/linkcmds
noinst_LIBRARIES = libbsp.a
libbsp_a_SOURCES =
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/bsp_specs b/c/src/lib/libbsp/powerpc/mvme3100/bsp_specs
index c664704..2625609 100644
--- a/c/src/lib/libbsp/powerpc/mvme3100/bsp_specs
+++ b/c/src/lib/libbsp/powerpc/mvme3100/bsp_specs
@@ -1,13 +1,9 @@
%rename endfile old_endfile
%rename startfile old_startfile
-%rename link old_link
*startfile:
%{!qrtems: %(old_startfile)} \
-%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s -e __rtems_entry_point -u __vectors motld_start.o%s}}
+%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s}}
*endfile:
%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s ecrtn.o%s}
-
-*link:
-%{!qrtems: %(old_link)} %{qrtems: -dp -Bstatic}
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/preinstall.am b/c/src/lib/libbsp/powerpc/mvme3100/preinstall.am
index 16a7b91..ee5d767 100644
--- a/c/src/lib/libbsp/powerpc/mvme3100/preinstall.am
+++ b/c/src/lib/libbsp/powerpc/mvme3100/preinstall.am
@@ -61,7 +61,11 @@ $(PROJECT_LIB)/rtems_crti.$(OBJEXT): rtems_crti.$(OBJEXT) $(PROJECT_LIB)/$(dirst
$(INSTALL_DATA) $< $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
TMPINSTALL_FILES += $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
-$(PROJECT_LIB)/linkcmds: ../shared/startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
+$(PROJECT_LIB)/linkcmds.share: ../shared/startup/linkcmds.share $(PROJECT_LIB)/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.share
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds.share
+
+$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds b/c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds
new file mode 100644
index 0000000..b30fb91
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds
@@ -0,0 +1,5 @@
+STARTUP(motld_start.o)
+ENTRY(__rtems_entry_point)
+EXTERN(__vectors)
+
+INCLUDE linkcmds.share
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am b/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
index 7924eb0..c257a9e 100644
--- a/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
@@ -16,8 +16,8 @@ DISTCLEANFILES = include/bspopts.h
noinst_PROGRAMS =
-###
-dist_project_lib_DATA += ../shared/startup/linkcmds
+dist_project_lib_DATA += ../shared/startup/linkcmds.share
+dist_project_lib_DATA += startup/linkcmds
noinst_LIBRARIES = libbsp.a
libbsp_a_SOURCES =
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/bsp_specs b/c/src/lib/libbsp/powerpc/mvme5500/bsp_specs
index 9528d87..2625609 100644
--- a/c/src/lib/libbsp/powerpc/mvme5500/bsp_specs
+++ b/c/src/lib/libbsp/powerpc/mvme5500/bsp_specs
@@ -1,13 +1,9 @@
%rename endfile old_endfile
%rename startfile old_startfile
-%rename link old_link
*startfile:
%{!qrtems: %(old_startfile)} \
-%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s -e __rtems_entry_point -u __vectors mvme5500start.o%s}}
+%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s}}
*endfile:
%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s ecrtn.o%s}
-
-*link:
-%{!qrtems: %(old_link)} %{qrtems: -dp -Bstatic}
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/preinstall.am b/c/src/lib/libbsp/powerpc/mvme5500/preinstall.am
index 940b6fa..f2bf466 100644
--- a/c/src/lib/libbsp/powerpc/mvme5500/preinstall.am
+++ b/c/src/lib/libbsp/powerpc/mvme5500/preinstall.am
@@ -53,7 +53,11 @@ $(PROJECT_INCLUDE)/bsp/bootcard.h: ../../shared/include/bootcard.h $(PROJECT_INC
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/bootcard.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/bootcard.h
-$(PROJECT_LIB)/linkcmds: ../shared/startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
+$(PROJECT_LIB)/linkcmds.share: ../shared/startup/linkcmds.share $(PROJECT_LIB)/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.share
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds.share
+
+$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/startup/linkcmds b/c/src/lib/libbsp/powerpc/mvme5500/startup/linkcmds
new file mode 100644
index 0000000..384b623
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mvme5500/startup/linkcmds
@@ -0,0 +1,5 @@
+STARTUP(mvme5500start.o)
+ENTRY(__rtems_entry_point)
+EXTERN(__vectors)
+
+INCLUDE linkcmds.share
diff --git a/c/src/lib/libbsp/powerpc/shared/startup/linkcmds b/c/src/lib/libbsp/powerpc/shared/startup/linkcmds
deleted file mode 100644
index a18382b..0000000
--- a/c/src/lib/libbsp/powerpc/shared/startup/linkcmds
+++ /dev/null
@@ -1,297 +0,0 @@
-OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
- "elf32-powerpc")
-OUTPUT_ARCH(powerpc)
-ENTRY(_start)
-/* Do we need any of these for elf?
- __DYNAMIC = 0; */
-PROVIDE (__stack = 0);
-MEMORY {
- VECTORS : ORIGIN = 0x0 , LENGTH = 0x3000
- CODE : ORIGIN = 0x3000 , LENGTH = 32M - 0x3000
-}
-SECTIONS
-{
- .entry_point_section :
- {
- KEEP(*(.entry_point_section))
- } > VECTORS
-
- /*
- * This section is used only if NO_DYNAMIC_EXCEPTION_VECTOR_INSTALL
- * is defined in vectors/vectors.S
- */
- .vectors :
- {
- *(.vectors)
- } > VECTORS
-
- /* Read-only sections, merged into text segment: */
- .interp : { *(.interp) } > CODE
- .hash : { *(.hash) } > CODE
- .dynsym : { *(.dynsym) } > CODE
- .dynstr : { *(.dynstr) } > CODE
- .gnu.version : { *(.gnu.version) } > CODE
- .gnu.version_d : { *(.gnu.version_d) } > CODE
- .gnu.version_r : { *(.gnu.version_r) } > CODE
- .rela.text :
- { *(.rela.text) *(.rela.gnu.linkonce.t*) } > CODE
- .rela.data :
- { *(.rela.data) *(.rela.gnu.linkonce.d*) } > CODE
- .rela.rodata :
- { *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > CODE
- .rela.got : { *(.rela.got) } > CODE
- .rela.got1 : { *(.rela.got1) } > CODE
- .rela.got2 : { *(.rela.got2) } > CODE
- .rela.ctors : { *(.rela.ctors) } > CODE
- .rela.dtors : { *(.rela.dtors) } > CODE
- .rela.init : { *(.rela.init) } > CODE
- .rela.fini : { *(.rela.fini) } > CODE
- .rela.bss : { *(.rela.bss) } > CODE
- .rela.plt : { *(.rela.plt) } > CODE
- .rela.sdata : { *(.rela.sdata) } > CODE
- .rela.sbss : { *(.rela.sbss) } > CODE
- .rela.sdata2 : { *(.rela.sdata2) } > CODE
- .rela.sbss2 : { *(.rela.sbss2) } > CODE
- .rela.dyn : { *(.rela.dyn) } > CODE
-
- .init : { KEEP(*(.init)) } > CODE
-
- .text :
- {
- *(.text*)
-
- /*
- * Special FreeBSD sysctl sections.
- */
- . = ALIGN (16);
- __start_set_sysctl_set = .;
- *(set_sysctl_*);
- __stop_set_sysctl_set = ABSOLUTE(.);
- *(set_domain_*);
- *(set_pseudo_*);
-
- /* .gnu.warning sections are handled specially by elf32.em. */
- *(.gnu.warning)
- *(.gnu.linkonce.t*)
- } > CODE
-
- .fini : { _fini = .; KEEP(*(.fini)) } > CODE
-
- .rodata : { *(.rodata*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) } > CODE
- .rodata1 : { *(.rodata1) } > CODE
-
- .tdata : {
- _TLS_Data_begin = .;
- *(.tdata .tdata.* .gnu.linkonce.td.*)
- _TLS_Data_end = .;
- } >CODE
-
- .tbss : {
- _TLS_BSS_begin = .;
- *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
- _TLS_BSS_end = .;
- } >CODE
-
- _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
- _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
- _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
- _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
- _TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
- _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
-
- /* Adjust the address for the data segment. We want to adjust up to
- the same address within the page on the next page up. */
- . = ALIGN(0x10000) + (. & (0x10000 - 1));
- /* Ensure the __preinit_array_start label is properly aligned. We
- could instead move the label definition inside the section, but
- the linker would then create the section even if it turns out to
- be empty, which isn't pretty. */
- . = ALIGN(32 / 8);
- PROVIDE (__preinit_array_start = .);
- .preinit_array : { *(.preinit_array) } >CODE
- PROVIDE (__preinit_array_end = .);
- PROVIDE (__init_array_start = .);
- .init_array : { *(.init_array) } >CODE
- PROVIDE (__init_array_end = .);
- PROVIDE (__fini_array_start = .);
- .fini_array : { *(.fini_array) } >CODE
- PROVIDE (__fini_array_end = .);
-
- .sdata2 : {PROVIDE (_SDA2_BASE_ = 32768); *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >CODE
- .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
- /* avoid empty sdata2/sbss2 area -- __eabi would not set up r2
- * which may be important if run-time loading is used
- */
- . += 1;
- PROVIDE (__SBSS2_END__ = .);
- } >CODE
- .eh_frame : { *(.eh_frame) } >CODE
-
- /* NOTE: if the BSP uses page tables, the correctness of
- * '_etext' (and __DATA_START__) is CRUCIAL - otherwise,
- * an invalid mapping may result!!!
- */
- _etext = .;
- PROVIDE (etext = .);
-
- /* Adjust the address for the data segment. We want to adjust up to
- the same address within the page on the next page up. It would
- be more correct to do this:
- . = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1));
- The current expression does not correctly handle the case of a
- text segment ending precisely at the end of a page; it causes the
- data segment to skip a page. The above expression does not have
- this problem, but it will currently (2/95) cause BFD to allocate
- a single segment, combining both text and data, for this case.
- This will prevent the text segment from being shared among
- multiple executions of the program; I think that is more
- important than losing a page of the virtual address space (note
- that no actual memory is lost; the page which is skipped can not
- be referenced). */
- . = ALIGN(0x1000);
- .data ALIGN(0x1000) :
- {
- /* NOTE: if the BSP uses page tables, the correctness of
- * '__DATA_START__' (and _etext) is CRUCIAL - otherwise,
- * an invalid mapping may result!!!
- */
- PROVIDE(__DATA_START__ = ABSOLUTE(.) );
- *(.data .data.* .gnu.linkonce.d*)
- KEEP (*(SORT(.rtemsrwset.*)))
- SORT(CONSTRUCTORS)
- } > CODE
- .data1 : { *(.data1) } > CODE
- PROVIDE (__EXCEPT_START__ = .);
- .gcc_except_table : { *(.gcc_except_table*) } > CODE
- PROVIDE (__EXCEPT_END__ = .);
- .got1 : { *(.got1) } > CODE
- /* Put .ctors and .dtors next to the .got2 section, so that the pointers
- get relocated with -mrelocatable. Also put in the .fixup pointers.
- The current compiler no longer needs this, but keep it around for 2.7.2 */
- PROVIDE (_GOT2_START_ = .);
- .got2 : { *(.got2) } > CODE
- .dynamic : { *(.dynamic) } > CODE
-
- .ctors :
- {
- /* gcc uses crtbegin.o to find the start of
- the constructors, so we make sure it is
- first. Because this is a wildcard, it
- doesn't matter if the user does not
- actually link against crtbegin.o; the
- linker won't look for a file to match a
- wildcard. The wildcard also means that it
- doesn't matter which directory crtbegin.o
- is in. */
- KEEP (*crtbegin.o(.ctors))
- /* We don't want to include the .ctor section from
- from the crtend.o file until after the sorted ctors.
- The .ctor section from the crtend file contains the
- end of ctors marker and it must be last */
- KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
- KEEP (*(SORT(.ctors.*)))
- KEEP (*(.ctors))
- } > CODE
- .dtors :
- {
- KEEP (*crtbegin.o(.dtors))
- KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
- KEEP (*(SORT(.dtors.*)))
- KEEP (*(.dtors))
- } > CODE
-
-
- PROVIDE (_FIXUP_START_ = .);
- .fixup : { *(.fixup) } > CODE
- PROVIDE (_FIXUP_END_ = .);
- PROVIDE (_GOT2_END_ = .);
- PROVIDE (_GOT_START_ = .);
-
- .got : { *(.got) } > CODE
- .got.plt : { *(.got.plt) } > CODE
-
- PROVIDE (_GOT_END_ = .);
-
- .jcr : { KEEP (*(.jcr)) } > CODE
-
- /* We want the small data sections together, so single-instruction offsets
- can access them all, and initialized data all before uninitialized, so
- we can shorten the on-disk segment size. */
- .sdata : { PROVIDE (_SDA_BASE_ = 32768); *(.sdata*) *(.gnu.linkonce.s.*) } >CODE
- _edata = .;
- PROVIDE (edata = .);
- .sbss :
- {
- PROVIDE (__sbss_start = .);
- *(.dynsbss)
- *(.sbss* .gnu.linkonce.sb.*)
- *(.scommon)
- /* avoid empty sdata/sbss area -- __eabi would not set up r13
- * which may be important if run-time loading is used
- */
- . += 1;
- PROVIDE (__SBSS_END__ = .);
- PROVIDE (__sbss_end = .);
- } > CODE
- .plt : { *(.plt) } > CODE
- .bss :
- {
- PROVIDE (__bss_start = .);
- *(.dynbss)
- *(.bss .bss* .gnu.linkonce.b*)
- *(COMMON)
- . = ALIGN(16);
- PROVIDE (__bss_end = .);
- } > CODE
- . = ALIGN(16);
- . += 0x1000;
- __stack = .;
- _end = . ;
- __rtems_end = . ;
- PROVIDE (end = .);
- /DISCARD/ :
- {
- *(.comment)
- }
-
-
- /* Stabs debugging sections. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- .stab.excl 0 : { *(.stab.excl) }
- .stab.exclstr 0 : { *(.stab.exclstr) }
- .stab.index 0 : { *(.stab.index) }
- .stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
-
- /* DWARF debug sections.
- Symbols in the DWARF debugging sections are relative to the beginning
- of the section so we begin them at 0. */
- /* DWARF 1 */
- .debug 0 : { *(.debug) }
- .line 0 : { *(.line) }
-
- /* GNU DWARF 1 extensions */
- .debug_srcinfo 0 : { *(.debug_srcinfo) }
- .debug_sfnames 0 : { *(.debug_sfnames) }
-
- /* DWARF 1.1 and DWARF 2 */
- .debug_aranges 0 : { *(.debug_aranges) }
- .debug_pubnames 0 : { *(.debug_pubnames) }
-
- /* DWARF 2 */
- .debug_info 0 : { *(.debug_info) }
- .debug_abbrev 0 : { *(.debug_abbrev) }
- .debug_line 0 : { *(.debug_line) }
- .debug_frame 0 : { *(.debug_frame) }
- .debug_str 0 : { *(.debug_str) }
- .debug_loc 0 : { *(.debug_loc) }
- .debug_macinfo 0 : { *(.debug_macinfo) }
-
- /* SGI/MIPS DWARF 2 extensions */
- .debug_weaknames 0 : { *(.debug_weaknames) }
- .debug_funcnames 0 : { *(.debug_funcnames) }
- .debug_typenames 0 : { *(.debug_typenames) }
- .debug_varnames 0 : { *(.debug_varnames) }
- /* These must appear regardless of . */
-}
diff --git a/c/src/lib/libbsp/powerpc/shared/startup/linkcmds.share b/c/src/lib/libbsp/powerpc/shared/startup/linkcmds.share
new file mode 100644
index 0000000..59f538e
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/shared/startup/linkcmds.share
@@ -0,0 +1,296 @@
+OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
+ "elf32-powerpc")
+OUTPUT_ARCH(powerpc)
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+PROVIDE (__stack = 0);
+MEMORY {
+ VECTORS : ORIGIN = 0x0 , LENGTH = 0x3000
+ CODE : ORIGIN = 0x3000 , LENGTH = 32M - 0x3000
+}
+SECTIONS
+{
+ .entry_point_section :
+ {
+ KEEP(*(.entry_point_section))
+ } > VECTORS
+
+ /*
+ * This section is used only if NO_DYNAMIC_EXCEPTION_VECTOR_INSTALL
+ * is defined in vectors/vectors.S
+ */
+ .vectors :
+ {
+ *(.vectors)
+ } > VECTORS
+
+ /* Read-only sections, merged into text segment: */
+ .interp : { *(.interp) } > CODE
+ .hash : { *(.hash) } > CODE
+ .dynsym : { *(.dynsym) } > CODE
+ .dynstr : { *(.dynstr) } > CODE
+ .gnu.version : { *(.gnu.version) } > CODE
+ .gnu.version_d : { *(.gnu.version_d) } > CODE
+ .gnu.version_r : { *(.gnu.version_r) } > CODE
+ .rela.text :
+ { *(.rela.text) *(.rela.gnu.linkonce.t*) } > CODE
+ .rela.data :
+ { *(.rela.data) *(.rela.gnu.linkonce.d*) } > CODE
+ .rela.rodata :
+ { *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > CODE
+ .rela.got : { *(.rela.got) } > CODE
+ .rela.got1 : { *(.rela.got1) } > CODE
+ .rela.got2 : { *(.rela.got2) } > CODE
+ .rela.ctors : { *(.rela.ctors) } > CODE
+ .rela.dtors : { *(.rela.dtors) } > CODE
+ .rela.init : { *(.rela.init) } > CODE
+ .rela.fini : { *(.rela.fini) } > CODE
+ .rela.bss : { *(.rela.bss) } > CODE
+ .rela.plt : { *(.rela.plt) } > CODE
+ .rela.sdata : { *(.rela.sdata) } > CODE
+ .rela.sbss : { *(.rela.sbss) } > CODE
+ .rela.sdata2 : { *(.rela.sdata2) } > CODE
+ .rela.sbss2 : { *(.rela.sbss2) } > CODE
+ .rela.dyn : { *(.rela.dyn) } > CODE
+
+ .init : { KEEP(*(.init)) } > CODE
+
+ .text :
+ {
+ *(.text*)
+
+ /*
+ * Special FreeBSD sysctl sections.
+ */
+ . = ALIGN (16);
+ __start_set_sysctl_set = .;
+ *(set_sysctl_*);
+ __stop_set_sysctl_set = ABSOLUTE(.);
+ *(set_domain_*);
+ *(set_pseudo_*);
+
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ *(.gnu.linkonce.t*)
+ } > CODE
+
+ .fini : { _fini = .; KEEP(*(.fini)) } > CODE
+
+ .rodata : { *(.rodata*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) } > CODE
+ .rodata1 : { *(.rodata1) } > CODE
+
+ .tdata : {
+ _TLS_Data_begin = .;
+ *(.tdata .tdata.* .gnu.linkonce.td.*)
+ _TLS_Data_end = .;
+ } >CODE
+
+ .tbss : {
+ _TLS_BSS_begin = .;
+ *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
+ _TLS_BSS_end = .;
+ } >CODE
+
+ _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
+ _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
+ _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
+ _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
+ _TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
+ _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
+
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. */
+ . = ALIGN(0x10000) + (. & (0x10000 - 1));
+ /* Ensure the __preinit_array_start label is properly aligned. We
+ could instead move the label definition inside the section, but
+ the linker would then create the section even if it turns out to
+ be empty, which isn't pretty. */
+ . = ALIGN(32 / 8);
+ PROVIDE (__preinit_array_start = .);
+ .preinit_array : { *(.preinit_array) } >CODE
+ PROVIDE (__preinit_array_end = .);
+ PROVIDE (__init_array_start = .);
+ .init_array : { *(.init_array) } >CODE
+ PROVIDE (__init_array_end = .);
+ PROVIDE (__fini_array_start = .);
+ .fini_array : { *(.fini_array) } >CODE
+ PROVIDE (__fini_array_end = .);
+
+ .sdata2 : {PROVIDE (_SDA2_BASE_ = 32768); *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >CODE
+ .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
+ /* avoid empty sdata2/sbss2 area -- __eabi would not set up r2
+ * which may be important if run-time loading is used
+ */
+ . += 1;
+ PROVIDE (__SBSS2_END__ = .);
+ } >CODE
+ .eh_frame : { *(.eh_frame) } >CODE
+
+ /* NOTE: if the BSP uses page tables, the correctness of
+ * '_etext' (and __DATA_START__) is CRUCIAL - otherwise,
+ * an invalid mapping may result!!!
+ */
+ _etext = .;
+ PROVIDE (etext = .);
+
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. It would
+ be more correct to do this:
+ . = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1));
+ The current expression does not correctly handle the case of a
+ text segment ending precisely at the end of a page; it causes the
+ data segment to skip a page. The above expression does not have
+ this problem, but it will currently (2/95) cause BFD to allocate
+ a single segment, combining both text and data, for this case.
+ This will prevent the text segment from being shared among
+ multiple executions of the program; I think that is more
+ important than losing a page of the virtual address space (note
+ that no actual memory is lost; the page which is skipped can not
+ be referenced). */
+ . = ALIGN(0x1000);
+ .data ALIGN(0x1000) :
+ {
+ /* NOTE: if the BSP uses page tables, the correctness of
+ * '__DATA_START__' (and _etext) is CRUCIAL - otherwise,
+ * an invalid mapping may result!!!
+ */
+ PROVIDE(__DATA_START__ = ABSOLUTE(.) );
+ *(.data .data.* .gnu.linkonce.d*)
+ KEEP (*(SORT(.rtemsrwset.*)))
+ SORT(CONSTRUCTORS)
+ } > CODE
+ .data1 : { *(.data1) } > CODE
+ PROVIDE (__EXCEPT_START__ = .);
+ .gcc_except_table : { *(.gcc_except_table*) } > CODE
+ PROVIDE (__EXCEPT_END__ = .);
+ .got1 : { *(.got1) } > CODE
+ /* Put .ctors and .dtors next to the .got2 section, so that the pointers
+ get relocated with -mrelocatable. Also put in the .fixup pointers.
+ The current compiler no longer needs this, but keep it around for 2.7.2 */
+ PROVIDE (_GOT2_START_ = .);
+ .got2 : { *(.got2) } > CODE
+ .dynamic : { *(.dynamic) } > CODE
+
+ .ctors :
+ {
+ /* gcc uses crtbegin.o to find the start of
+ the constructors, so we make sure it is
+ first. Because this is a wildcard, it
+ doesn't matter if the user does not
+ actually link against crtbegin.o; the
+ linker won't look for a file to match a
+ wildcard. The wildcard also means that it
+ doesn't matter which directory crtbegin.o
+ is in. */
+ KEEP (*crtbegin.o(.ctors))
+ /* We don't want to include the .ctor section from
+ from the crtend.o file until after the sorted ctors.
+ The .ctor section from the crtend file contains the
+ end of ctors marker and it must be last */
+ KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ } > CODE
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ } > CODE
+
+
+ PROVIDE (_FIXUP_START_ = .);
+ .fixup : { *(.fixup) } > CODE
+ PROVIDE (_FIXUP_END_ = .);
+ PROVIDE (_GOT2_END_ = .);
+ PROVIDE (_GOT_START_ = .);
+
+ .got : { *(.got) } > CODE
+ .got.plt : { *(.got.plt) } > CODE
+
+ PROVIDE (_GOT_END_ = .);
+
+ .jcr : { KEEP (*(.jcr)) } > CODE
+
+ /* We want the small data sections together, so single-instruction offsets
+ can access them all, and initialized data all before uninitialized, so
+ we can shorten the on-disk segment size. */
+ .sdata : { PROVIDE (_SDA_BASE_ = 32768); *(.sdata*) *(.gnu.linkonce.s.*) } >CODE
+ _edata = .;
+ PROVIDE (edata = .);
+ .sbss :
+ {
+ PROVIDE (__sbss_start = .);
+ *(.dynsbss)
+ *(.sbss* .gnu.linkonce.sb.*)
+ *(.scommon)
+ /* avoid empty sdata/sbss area -- __eabi would not set up r13
+ * which may be important if run-time loading is used
+ */
+ . += 1;
+ PROVIDE (__SBSS_END__ = .);
+ PROVIDE (__sbss_end = .);
+ } > CODE
+ .plt : { *(.plt) } > CODE
+ .bss :
+ {
+ PROVIDE (__bss_start = .);
+ *(.dynbss)
+ *(.bss .bss* .gnu.linkonce.b*)
+ *(COMMON)
+ . = ALIGN(16);
+ PROVIDE (__bss_end = .);
+ } > CODE
+ . = ALIGN(16);
+ . += 0x1000;
+ __stack = .;
+ _end = . ;
+ __rtems_end = . ;
+ PROVIDE (end = .);
+ /DISCARD/ :
+ {
+ *(.comment)
+ }
+
+
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+ /* These must appear regardless of . */
+}
--
1.8.3.1
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