diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/Makefile.inc | 17 | ||||
| -rw-r--r-- | src/lib/bootblock.ld | 49 | ||||
| -rw-r--r-- | src/lib/cbfs_spi.c | 5 | ||||
| -rw-r--r-- | src/lib/cbmem_console.c | 9 | ||||
| -rw-r--r-- | src/lib/loaders/load_and_run_payload.c | 1 | ||||
| -rw-r--r-- | src/lib/ramstage.ld | 116 | ||||
| -rw-r--r-- | src/lib/rmodule.ld | 10 | ||||
| -rw-r--r-- | src/lib/romstage.ld | 58 | ||||
| -rw-r--r-- | src/lib/selfboot.c | 9 |
9 files changed, 254 insertions, 20 deletions
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 7d02934e1e..f5b2afa5d7 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -39,7 +39,8 @@ romstage-y += prog_ops.c romstage-y += memchr.c romstage-y += memcmp.c $(foreach arch,$(ARCH_SUPPORTED),\ - $(eval rmodules_$(arch)-y += memcmp.c)) + $(eval rmodules_$(arch)-y += memcmp.c) \ + $(eval rmodules_$(arch)-y += rmodule.ld)) romstage-$(CONFIG_I2C_TPM) += delay.c romstage-y += cbfs.c cbfs_core.c @@ -122,12 +123,20 @@ ramstage-y += halt.c smm-y += halt.c secmon-y += halt.c +ifneq ($(CONFIG_ARCH_X86),y) +# X86 bootblock and romstage use custom ldscripts that are all glued together, +# so we need to exclude it here or it would pick these up as well +bootblock-y += bootblock.ld +romstage-y += romstage.ld +endif +ramstage-y += ramstage.ld + ifeq ($(CONFIG_RELOCATABLE_MODULES),y) ramstage-y += rmodule.c romstage-$(CONFIG_RELOCATABLE_RAMSTAGE) += rmodule.c RMODULE_LDSCRIPT := $(src)/lib/rmodule.ld -RMODULE_LDFLAGS := -nostartfiles --gc-sections --emit-relocs -z defs -Bsymbolic -T$(RMODULE_LDSCRIPT) +RMODULE_LDFLAGS := -nostartfiles --gc-sections --emit-relocs -z defs -Bsymbolic -T $(RMODULE_LDSCRIPT) # rmodule_link_rules is a function that should be called with: # (1) the object name to link @@ -137,8 +146,8 @@ RMODULE_LDFLAGS := -nostartfiles --gc-sections --emit-relocs -z defs -Bsymbolic # It will create the necessary Make rules to create a rmodule. The resulting # rmdoule is named $(1).rmod define rmodule_link -$(strip $(1)): $(strip $(2)) $$(RMODULE_LDSCRIPT) $$(RMODTOOL) - $$(LD_rmodules_$(4)) $$(RMODULE_LDFLAGS) --defsym=__heap_size=$(strip $(3)) -o $$@ --start-group $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) --end-group +$(strip $(1)): $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) $(obj)/lib/rmodule.rmodules_$(4).ld | $$(RMODTOOL) + $$(LD_rmodules_$(4)) --gc-sections -static -T $(obj)/lib/rmodule.rmodules_$(4).ld --defsym=__heap_size=$(strip $(3)) -o $$@ --start-group $(filter-out %.ld,$(2)) --end-group $$(NM_rmodules_$(4)) -n $$@ > $$(basename $$@).map $(strip $(1)).rmod: $(strip $(1)) diff --git a/src/lib/bootblock.ld b/src/lib/bootblock.ld new file mode 100644 index 0000000000..9bd8a86aea --- /dev/null +++ b/src/lib/bootblock.ld @@ -0,0 +1,49 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* This file is included inside a SECTIONS block */ + +.bootblock . : { + _program = .; + _bootblock = .; + *(.text._start); + *(.text.stage_entry); + KEEP(*(.id)); + *(.text); + *(.text.*); + *(.rodata); + *(.rodata.*); + *(.data); + *(.data.*); + *(.bss); + *(.bss.*); + *(.sbss); + *(.sbss.*); + _ebootblock = .; + _eprogram = .; +} : to_load = 0xff + +/DISCARD/ : { + *(.comment) + *(.note) + *(.comment.*) + *(.note.*) + *(.ARM.*) + *(.MIPS.*) +} diff --git a/src/lib/cbfs_spi.c b/src/lib/cbfs_spi.c index 2b3728efaa..81e6ec3ce6 100644 --- a/src/lib/cbfs_spi.c +++ b/src/lib/cbfs_spi.c @@ -25,6 +25,7 @@ #include <cbfs.h> #include <spi_flash.h> +#include <symbols.h> /* SPI flash as CBFS media. */ struct cbfs_spi_context { @@ -80,8 +81,8 @@ static int init_cbfs_media_context(void) if (!spi_context.spi_flash_info) return -1; - spi_context.buffer.buffer = (void *)CONFIG_CBFS_CACHE_ADDRESS; - spi_context.buffer.size = CONFIG_CBFS_CACHE_SIZE; + spi_context.buffer.buffer = (void *)_cbfs_cache; + spi_context.buffer.size = _cbfs_cache_size; } return 0; diff --git a/src/lib/cbmem_console.c b/src/lib/cbmem_console.c index 0c2722c04f..770c1d2c9b 100644 --- a/src/lib/cbmem_console.c +++ b/src/lib/cbmem_console.c @@ -21,6 +21,7 @@ #include <console/cbmem_console.h> #include <cbmem.h> #include <arch/early_variables.h> +#include <symbols.h> #include <string.h> /* @@ -44,11 +45,9 @@ static void copy_console_buffer(struct cbmem_console *old_cons_p, /* * While running from ROM, before DRAM is initialized, some area in cache as * ram space is used for the console buffer storage. The size and location of - * the area are defined in the config. + * the area are defined by the linker script with _(e)preram_cbmem_console. */ -extern struct cbmem_console preram_cbmem_console; - #else /* @@ -112,8 +111,8 @@ void cbmemc_init(void) if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) flags = 0; - init_console_ptr(&preram_cbmem_console, - CONFIG_CONSOLE_PRERAM_BUFFER_SIZE, flags); + init_console_ptr(_preram_cbmem_console, + _preram_cbmem_console_size, flags); #else /* * Initializing before CBMEM is available, use static buffer to store diff --git a/src/lib/loaders/load_and_run_payload.c b/src/lib/loaders/load_and_run_payload.c index 6c42a589d2..0e08d8829d 100644 --- a/src/lib/loaders/load_and_run_payload.c +++ b/src/lib/loaders/load_and_run_payload.c @@ -24,6 +24,7 @@ #include <fallback.h> #include <lib.h> #include <program_loading.h> +#include <symbols.h> #include <timestamp.h> extern const struct prog_loader_ops vboot_payload_loader; diff --git a/src/lib/ramstage.ld b/src/lib/ramstage.ld new file mode 100644 index 0000000000..f12653ec2e --- /dev/null +++ b/src/lib/ramstage.ld @@ -0,0 +1,116 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* This file is included inside a SECTIONS block */ + +/* First we place the code and read only data (typically const declared). + * This could theoretically be placed in rom. + */ +.text : { + _program = .; + _ramstage = .; + _text = .; + *(.text._start); + *(.text.stage_entry); + *(.text); + *(.text.*); + . = ALIGN(16); + _etext = .; +} : to_load + +#ifdef CONFIG_COVERAGE +.ctors : { + . = ALIGN(0x100); + __CTOR_LIST__ = .; + KEEP(*(.ctors)); + LONG(0); + LONG(0); + __CTOR_END__ = .; +} +#endif + +/* TODO: align data sections to cache lines? (is that really useful?) */ +.rodata : { + _rodata = .; + . = ALIGN(8); + + /* If any changes are made to the driver start/symbols or the + * section names the equivalent changes need to made to + * rmodule.ld. */ + console_drivers = .; + KEEP(*(.rodata.console_drivers)); + econsole_drivers = . ; + . = ALIGN(8); + pci_drivers = . ; + KEEP(*(.rodata.pci_driver)); + epci_drivers = . ; + cpu_drivers = . ; + KEEP(*(.rodata.cpu_driver)); + ecpu_drivers = . ; + _bs_init_begin = .; + KEEP(*(.bs_init)); + LONG(0); + LONG(0); + _bs_init_end = .; + + *(.rodata) + *(.rodata.*) + /* kevinh/Ispiri - Added an align, because the objcopy tool + * incorrectly converts sections that are not long word aligned. + */ + . = ALIGN(8); + + _erodata = .; +} + +.data : { + /* Move to different cache line to avoid false sharing with .rodata. */ + . = ALIGN(64); /* May not be actual line size, not that important. */ + _data = .; + *(.data) + *(.data.*) + _edata = .; +} + +.bss . : { + _bss = .; + *(.bss) + *(.bss.*) + *(.sbss) + *(.sbss.*) + _ebss = .; +} + +.heap . : { + _heap = .; + /* Reserve CONFIG_HEAP_SIZE bytes for the heap */ + . += CONFIG_HEAP_SIZE ; + . = ALIGN(4); + _eheap = .; + _eramstage = .; + _eprogram = .; +} + +/* Discard the sections we don't need/want */ + +/DISCARD/ : { + *(.comment) + *(.note) + *(.note.*) +} diff --git a/src/lib/rmodule.ld b/src/lib/rmodule.ld index 065b5b642e..70a2d3df8e 100644 --- a/src/lib/rmodule.ld +++ b/src/lib/rmodule.ld @@ -22,18 +22,21 @@ SECTIONS .payload : { /* C code of the module. */ - _ram_seg = .; - *(.textfirst); + _program = .; + *(.text._start); + *(.text.stage_entry); *(.text); *(.text.*); /* C read-only data. */ . = ALIGN(16); +#ifdef CONFIG_COVERAGE __CTOR_LIST__ = .; *(.ctors); LONG(0); LONG(0); __CTOR_END__ = .; +#endif /* The driver sections are to allow linking coreboot's * ramstage with the rmodule linker. Any changes made in @@ -68,6 +71,7 @@ SECTIONS . = ALIGN(8); /* Data section. */ + . = ALIGN(64); /* Mirror cache line alignment from ramstage. */ _sdata = .; *(.data); *(.data.*); @@ -95,7 +99,7 @@ SECTIONS _heap = .; . = . + __heap_size; _eheap = .; - _eram_seg = .; + _eprogram = .; } /DISCARD/ : { diff --git a/src/lib/romstage.ld b/src/lib/romstage.ld new file mode 100644 index 0000000000..c3a2643787 --- /dev/null +++ b/src/lib/romstage.ld @@ -0,0 +1,58 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* This file is included inside a SECTIONS block */ + +.text . : { + _program = .; + _romstage = .; + *(.text._start); + *(.text.stage_entry); + *(.text); + *(.text.*); +} : to_load + +.data . : { + *(.rodata); + *(.rodata.*); + *(.data); + *(.data.*); + . = ALIGN(8); +} + +.bss . : { + . = ALIGN(8); + _bss = .; + *(.bss) + *(.bss.*) + *(.sbss) + *(.sbss.*) + _ebss = .; + _eromstage = .; + _eprogram = .; +} + +/* Discard the sections we don't need/want */ +/DISCARD/ : { + *(.comment) + *(.note) + *(.comment.*) + *(.note.*) + *(.eh_frame); +} diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c index bd4c1690ac..d73b3f56af 100644 --- a/src/lib/selfboot.c +++ b/src/lib/selfboot.c @@ -24,17 +24,14 @@ #include <stdint.h> #include <stdlib.h> #include <string.h> +#include <symbols.h> #include <cbfs.h> #include <lib.h> #include <bootmem.h> #include <program_loading.h> -/* from ramstage.ld: */ -extern unsigned char _ram_seg; -extern unsigned char _eram_seg; - -static const unsigned long lb_start = (unsigned long)&_ram_seg; -static const unsigned long lb_end = (unsigned long)&_eram_seg; +static const unsigned long lb_start = (unsigned long)&_program; +static const unsigned long lb_end = (unsigned long)&_eprogram; struct segment { struct segment *next; |