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Clean up and make linker scripts more uniform

Browse Source 
This includes:

 - fix some comments indent,
 - add entry point,
 - align exported symbols,
 - remove unneeded "." assignments.
This commit is contained in:
Nicolas Schodet 2012-09-03 19:41:36 +02:00
parent 11727f56c9
commit 2a35377980
8 changed files with 37 additions and 41 deletions
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14
lib/lm3s/libopencm3_lm3s.ld
View File

@ -24,31 +24,34 @@
/* Enforce emmition of the vector table. */ /* Enforce emmition of the vector table. */
EXTERN (vector_table) EXTERN (vector_table)
/* Define the entry point of the output file. */
ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
*(.vectors) /* Vector table */ *(.vectors) /* Vector table */
*(.text*) /* Program code */ *(.text*) /* Program code */
. = ALIGN(4);
*(.rodata*) /* Read-only data */ *(.rodata*) /* Read-only data */
. = ALIGN(4);
_etext = .; _etext = .;
} >rom } >rom
. = ORIGIN(ram);
.data : { .data : {
_data = .; _data = .;
*(.data*) /* Read-write initialized data */ *(.data*) /* Read-write initialized data */
. = ALIGN(4);
_edata = .; _edata = .;
} >ram AT >rom } >ram AT >rom
.bss : { .bss : {
*(.bss*) /* Read-write zero initialized data */ *(.bss*) /* Read-write zero initialized data */
*(COMMON) *(COMMON)
. = ALIGN(4);
_ebss = .; _ebss = .;
} >ram AT >rom } >ram
/* /*
* The .eh_frame section appears to be used for C++ exception handling. * The .eh_frame section appears to be used for C++ exception handling.
@ -62,6 +65,7 @@ SECTIONS
*/ */
/DISCARD/ : { *(.ARM.exidx) } /DISCARD/ : { *(.ARM.exidx) }
. = ALIGN(4);
end = .; end = .;
} }

14
lib/lpc13xx/libopencm3_lpc13xx.ld
View File

@ -24,31 +24,34 @@
/* Enforce emmition of the vector table. */ /* Enforce emmition of the vector table. */
EXTERN (vector_table) EXTERN (vector_table)
/* Define the entry point of the output file. */
ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
*(.vectors) /* Vector table */ *(.vectors) /* Vector table */
*(.text*) /* Program code */ *(.text*) /* Program code */
. = ALIGN(4);
*(.rodata*) /* Read-only data */ *(.rodata*) /* Read-only data */
. = ALIGN(4);
_etext = .; _etext = .;
} >rom } >rom
. = ORIGIN(ram);
.data : { .data : {
_data = .; _data = .;
*(.data*) /* Read-write initialized data */ *(.data*) /* Read-write initialized data */
. = ALIGN(4);
_edata = .; _edata = .;
} >ram AT >rom } >ram AT >rom
.bss : { .bss : {
*(.bss*) /* Read-write zero initialized data */ *(.bss*) /* Read-write zero initialized data */
*(COMMON) *(COMMON)
. = ALIGN(4);
_ebss = .; _ebss = .;
} >ram AT >rom } >ram
/* /*
* The .eh_frame section appears to be used for C++ exception handling. * The .eh_frame section appears to be used for C++ exception handling.
@ -62,6 +65,7 @@ SECTIONS
*/ */
/DISCARD/ : { *(.ARM.exidx) } /DISCARD/ : { *(.ARM.exidx) }
. = ALIGN(4);
end = .; end = .;
} }

12
lib/lpc17xx/libopencm3_lpc17xx.ld
View File

@ -1,4 +1,3 @@
/* /*
* This file is part of the libopencm3 project. * This file is part of the libopencm3 project.
* *
@ -31,28 +30,28 @@ ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
*(.vectors) /* Vector table */ *(.vectors) /* Vector table */
*(.text*) /* Program code */ *(.text*) /* Program code */
. = ALIGN(4);
*(.rodata*) /* Read-only data */ *(.rodata*) /* Read-only data */
. = ALIGN(4);
_etext = .; _etext = .;
} >rom } >rom
. = ORIGIN(ram);
.data : { .data : {
_data = .; _data = .;
*(.data*) /* Read-write initialized data */ *(.data*) /* Read-write initialized data */
. = ALIGN(4);
_edata = .; _edata = .;
} >ram AT >rom } >ram AT >rom
.bss : { .bss : {
*(.bss*) /* Read-write zero initialized data */ *(.bss*) /* Read-write zero initialized data */
*(COMMON) *(COMMON)
. = ALIGN(4);
_ebss = .; _ebss = .;
} >ram AT >rom } >ram
/* /*
* The .eh_frame section appears to be used for C++ exception handling. * The .eh_frame section appears to be used for C++ exception handling.
@ -66,6 +65,7 @@ SECTIONS
*/ */
/DISCARD/ : { *(.ARM.exidx) } /DISCARD/ : { *(.ARM.exidx) }
. = ALIGN(4);
end = .; end = .;
} }

6
lib/lpc43xx/libopencm3_lpc43xx.ld
View File

@ -32,8 +32,6 @@ ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
. = ALIGN(0x400); . = ALIGN(0x400);
_text_ram = 0; /* Start of Code in RAM NULL because Copy of Code from ROM to RAM disabled */ _text_ram = 0; /* Start of Code in RAM NULL because Copy of Code from ROM to RAM disabled */
@ -51,12 +49,11 @@ SECTIONS
} > rom } > rom
__exidx_end = .; __exidx_end = .;
. = ALIGN(4);
_etext = .; _etext = .;
_etext_ram = 0; /* Start of Code in RAM NULL because Copy of Code from ROM to RAM disabled */ _etext_ram = 0; /* Start of Code in RAM NULL because Copy of Code from ROM to RAM disabled */
_etext_rom = 0; /* Start of Code in RAM NULL because Copy of Code from ROM to RAM disabled */ _etext_rom = 0; /* Start of Code in RAM NULL because Copy of Code from ROM to RAM disabled */
. = ORIGIN(ram);
.data : { .data : {
_data = .; _data = .;
*(.data*) /* Read-write initialized data */ *(.data*) /* Read-write initialized data */
@ -88,6 +85,7 @@ SECTIONS
*/ */
/DISCARD/ : { *(.ARM.exidx) } /DISCARD/ : { *(.ARM.exidx) }
. = ALIGN(4);
end = .; end = .;
/* Leave room above stack for IAP to run. */ /* Leave room above stack for IAP to run. */

5
lib/lpc43xx/libopencm3_lpc43xx_rom_to_ram.ld
View File

@ -32,8 +32,6 @@ ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
. = ALIGN(0x400); . = ALIGN(0x400);
_text_ram = (. - ORIGIN(rom)) + ORIGIN(ram); /* Start of Code in RAM */ _text_ram = (. - ORIGIN(rom)) + ORIGIN(ram); /* Start of Code in RAM */
@ -52,6 +50,7 @@ SECTIONS
} > rom } > rom
__exidx_end = .; __exidx_end = .;
. = ALIGN(4);
_etext = .; _etext = .;
_etext_ram = (. - ORIGIN(rom)) + ORIGIN(ram); _etext_ram = (. - ORIGIN(rom)) + ORIGIN(ram);
_etext_rom = (. - ORIGIN(rom)) + ORIGIN(rom_flash); _etext_rom = (. - ORIGIN(rom)) + ORIGIN(rom_flash);
@ -64,7 +63,6 @@ SECTIONS
} >ram_data AT >rom } >ram_data AT >rom
.bss : { .bss : {
. = _edata;
*(.bss*) /* Read-write zero initialized data */ *(.bss*) /* Read-write zero initialized data */
*(COMMON) *(COMMON)
. = ALIGN(4); . = ALIGN(4);
@ -89,6 +87,7 @@ SECTIONS
*/ */
/DISCARD/ : { *(.ARM.exidx) } /DISCARD/ : { *(.ARM.exidx) }
. = ALIGN(4);
end = .; end = .;
/* Leave room above stack for IAP to run. */ /* Leave room above stack for IAP to run. */

12
lib/stm32/f1/libopencm3_stm32f1.ld
View File

@ -30,8 +30,6 @@ ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
*(.vectors) /* Vector table */ *(.vectors) /* Vector table */
*(.text*) /* Program code */ *(.text*) /* Program code */
@ -42,9 +40,9 @@ SECTIONS
} >rom } >rom
/* /*
* Another section used by C++ stuff, appears when using newlib with * Another section used by C++ stuff, appears when using newlib with
* 64bit (long long) printf support * 64bit (long long) printf support
*/ */
.ARM.extab : { .ARM.extab : {
*(.ARM.extab*) *(.ARM.extab*)
} >rom } >rom
@ -54,8 +52,6 @@ SECTIONS
__exidx_end = .; __exidx_end = .;
} >rom } >rom
. = ORIGIN(ram);
.data : AT (__exidx_end) { .data : AT (__exidx_end) {
_data = .; _data = .;
*(.data*) /* Read-write initialized data */ *(.data*) /* Read-write initialized data */
@ -68,7 +64,7 @@ SECTIONS
*(COMMON) *(COMMON)
. = ALIGN(4); . = ALIGN(4);
_ebss = .; _ebss = .;
} >ram AT >rom } >ram
/* /*
* The .eh_frame section appears to be used for C++ exception handling. * The .eh_frame section appears to be used for C++ exception handling.

12
lib/stm32/f2/libopencm3_stm32f2.ld
View File

@ -30,8 +30,6 @@ ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
*(.vectors) /* Vector table */ *(.vectors) /* Vector table */
*(.text*) /* Program code */ *(.text*) /* Program code */
@ -42,9 +40,9 @@ SECTIONS
} >rom } >rom
/* /*
* Another section used by C++ stuff, appears when using newlib with * Another section used by C++ stuff, appears when using newlib with
* 64bit (long long) printf support * 64bit (long long) printf support
*/ */
.ARM.extab : { .ARM.extab : {
*(.ARM.extab*) *(.ARM.extab*)
} >rom } >rom
@ -54,8 +52,6 @@ SECTIONS
__exidx_end = .; __exidx_end = .;
} >rom } >rom
. = ORIGIN(ram);
.data : AT (__exidx_end) { .data : AT (__exidx_end) {
_data = .; _data = .;
*(.data*) /* Read-write initialized data */ *(.data*) /* Read-write initialized data */
@ -68,7 +64,7 @@ SECTIONS
*(COMMON) *(COMMON)
. = ALIGN(4); . = ALIGN(4);
_ebss = .; _ebss = .;
} >ram AT >rom } >ram
/* /*
* The .eh_frame section appears to be used for C++ exception handling. * The .eh_frame section appears to be used for C++ exception handling.

3
lib/stm32/f4/libopencm3_stm32f4.ld
View File

@ -30,8 +30,6 @@ ENTRY(reset_handler)
/* Define sections. */ /* Define sections. */
SECTIONS SECTIONS
{ {
. = ORIGIN(rom);
.text : { .text : {
*(.vectors) /* Vector table */ *(.vectors) /* Vector table */
*(.text*) /* Program code */ *(.text*) /* Program code */
@ -48,6 +46,7 @@ SECTIONS
__exidx_end = .; __exidx_end = .;
. = ALIGN(4);
_etext = .; _etext = .;
.data : { .data : {