Date: Thu, 4 Apr 2013 19:26:48 GMT From: Robert Watson <rwatson@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 227393 for review Message-ID: <201304041926.r34JQmpU085678@skunkworks.freebsd.org>
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http://p4web.freebsd.org/@@227393?ac=10 Change 227393 by rwatson@rwatson_zenith_cl_cam_ac_uk on 2013/04/04 19:25:54 Initialise the /boot/loader heap (allowing FICL to be less FICL), and implement the architecture-specific switch used by the loader->kernel metadata code. One remaining function to implement here, however. Affected files ... .. //depot/projects/ctsrd/beribsd/src/sys/boot/mips/Makefile#2 edit .. //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/Makefile#4 edit .. //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/arch.c#1 add .. //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/linker.cfg#3 edit .. //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/main.c#3 edit Differences ... ==== //depot/projects/ctsrd/beribsd/src/sys/boot/mips/Makefile#2 (text+ko) ==== @@ -1,3 +1,5 @@ # $FreeBSD$ +SUBDIR= beri + .include <bsd.subdir.mk> ==== //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/Makefile#4 (text+ko) ==== @@ -8,7 +8,7 @@ INSTALLFLAGS= -b # Architecture-specific loader code -SRCS= start.S main.c exec.c metadata.c vers.c +SRCS= start.S main.c exec.c metadata.c vers.c arch.c SRCS+= beri_console.c altera_jtag_uart.c beri_disk.c cfi.c LOADER_DISK_SUPPORT?= yes ==== //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/linker.cfg#3 (text+ko) ==== @@ -49,6 +49,12 @@ __loader_base__ = 0x20000; __loader_base_vaddr__ = __mips64_xkphys_cached__ + __loader_base__; +/* + * Highest address the loader is allowed to use below the kernel. + */ +__loader_end__ = 0x100000; +__loader_end_vaddr__ = __mips64_xkphys_cached__ + __loader_end__; + OUTPUT_FORMAT("elf64-tradbigmips"); OUTPUT_ARCH(mips) ENTRY(start) @@ -73,4 +79,8 @@ __boot_loader_len__ = . - __loader_base_vaddr__; __bss_start = ADDR(.bss); __bss_end = ALIGN(__bss_start + SIZEOF(.bss), 0x8); + + __heap_base = .; + __heap_top = __loader_end_vaddr__; + __heap_len = __heap_top - __heap_base; } ==== //depot/projects/ctsrd/beribsd/src/sys/boot/mips/beri/loader/main.c#3 (text+ko) ==== @@ -67,6 +67,9 @@ NULL }; +extern void *__heap_base; +extern void *__heap_top; + static int __elfN(exec)(struct preloaded_file *fp) { @@ -92,6 +95,8 @@ boot2_envv = envv; boot2_bootinfop = bootinfop; + setheap((void *)&__heap_base, (void *)&__heap_top); + /* * Probe for a console. */
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