Changes in Makefile

0ddc9c172279f686077310fbcfa5baf10c719188 - Merge git://git.denx.de/u-boot-mips

Wed, 26 Jul 2017 15:29:20 +0000

Merge git://git.denx.de/u-boot-mips List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

703ec9ddf965063cd79910df281657b056879368 - MIPS: Stop building position independent code

Mon, 19 Jun 2017 18:53:47 +0000

MIPS: Stop building position independent codeU-Boot has up until now built with -fpic for the MIPS architecture,producing position independent code which uses indirection through aglobal offset table, making relocation fairly straightforward as itsimply involves patching up GOT entries.Using -fpic does however have some downsides. The biggest of these isthat generated code is bloated in various ways. For example, functioncalls are indirected through the GOT & the t9 register: 8f998064 lw t9,-32668(gp) 0320f809 jalr t9Without -fpic the call is simply: 0f803f01 jal be00fc04 This is more compact & faster (due to the lack of the load & thedependency the jump has on its result). It is also easier to read &debug because the disassembly shows what function is being called,rather than just an offset from gp which would then have to be looked upin the ELF to discover the target function.Another disadvantage of -fpic is that each function begins with asequence to calculate the value of the gp register, for example: 3c1c0004 lui gp,0x4 279c3384 addiu gp,gp,13188 0399e021 addu gp,gp,t9Without using -fpic this sequence no longer appears at the start of eachfunction, reducing code size considerably.This patch switches U-Boot from building with -fpic to building with-fno-pic, in order to gain the benefits described above. The cost ofthis is an extra step during the build process to extract relocationdata from the ELF & write it into a new .rel section in a compactformat, plus the added complexity of dealing with multiple types ofrelocation rather than the single type that applied to the GOT. Thebenefit is smaller, cleaner, more debuggable code. The relocate_code()function is reimplemented in C to handle the new relocation scheme,which also makes it easier to read & debug.Taking maltael_defconfig as an example the size of u-boot.bin builtusing the Codescape MIPS 2016.05-06 toolchain (gcc 4.9.2, binutils2.24.90) shrinks from 254KiB to 224KiB.Signed-off-by: Paul Burton Cc: Daniel Schwierzeck Cc: u-boot@lists.denx.deReviewed-by: Daniel Schwierzeck Tested-by: Daniel Schwierzeck List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

a2cb31086f68cc0db95d4373e6dbdb612954f445 - Merge branch 'master' of git://git.denx.de/u-boot-mips

Wed, 30 Nov 2016 19:08:28 +0000

Merge branch 'master' of git://git.denx.de/u-boot-mips List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

6c59363004e6d3f860623daa330eef17fbccd8cd - MIPS: add handling for generic and EJTAG exceptions

Sat, 09 Jan 2016 17:34:14 +0000

MIPS: add handling for generic and EJTAG exceptionsAdd exception handlers for generic and EJTAG exceptions. Most ofthe assembly code is imported from Linux kernel and adapted to U-Boot.The exception vector table will be reserved above the stack beforeU-Boot is relocated. The exception handlers will be installed andactivated after relocation in the initr_traps hook function.Generic exceptions are handled by showing a CPU register dump similarto Linux kernel. For example:malta # md 100000001:Ooops:$ 0 : 00000000 00000000 00000009 00000004$ 4 : 8ff7e108 00000000 0000003a 00000000$ 8 : 00000008 00000001 8ff7cd18 00000004$12 : 00000002 00000000 00000005 0000003a$16 : 00000004 00000040 00000001 00000001$20 : 00000000 8fff53c0 00000008 00000004$24 : ffffffff 8ffdea44$28 : 90001650 8ff7cd00 00000004 8ffe6818Hi : 00000000Lo : 00000004epc : 8ffe6848 (text bfc28848)ra : 8ffe6818 (text bfc28818)Status: 00000006Cause : 00000410 (ExcCode 04)BadVA : 8ff9e928PrId : 00019300 ### ERROR ### Please RESET the board ###EJTAG exceptions are checked for SDBBP and delegated to the SDBBP handlerif necessary. Otherwise the debug mode will simply be exited. The SDBBPhandler currently prints the contents of registers c0_depc and c0_debug.This could be extended in the future to handle semi-hosting according tothe MIPS UHI specification.Signed-off-by: Daniel Schwierzeck Reviewed-by: Paul Burton Tested-by: Paul Burton List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

bd60252811c3c81dd0a32c0871b9116ba160190f - MIPS: reserve space for exception vectors

Sat, 09 Jan 2016 17:34:14 +0000

MIPS: reserve space for exception vectorsIn order to set own exception handlers, a table with the exceptionvectors must be built in DRAM and the CPU EBase register must beset to the base address of this table.Reserve the space above the stack and use gd->irq_sp as storagefor the exception base address.Signed-off-by: Daniel Schwierzeck List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

d2427caf54a08ec80e8bfa5ef2c0b4377da55bab - Merge branch 'master' of git://git.denx.de/u-boot-mips

Mon, 01 Feb 2016 21:58:46 +0000

Merge branch 'master' of git://git.denx.de/u-boot-mips List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

05e342554e51767830d7e60f2dab09192fd2a0e1 - MIPS: Support dynamic I/O port base address

Fri, 29 Jan 2016 13:54:52 +0000

MIPS: Support dynamic I/O port base addressThe existing mips_io_port_base variable isn't suitable for use earlyduring boot since it will be stored in the .data section which may notbe writable pre-relocation. Fix this by moving the I/O port base addressinto struct arch_global_data. In order to avoid adding this field forall targets, make this dependant upon a new Kconfig entryCONFIG_DYNAMIC_IO_PORT_BASE. Malta is the only board which sets anon-zero I/O port base, so select this option only for Malta.Signed-off-by: Paul Burton List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

e1cc4d31f889428a4ca73120951389c756404184 - Merge remote-tracking branch 'u-boot/master' into 'u-boot-arm/master'

Tue, 24 Feb 2015 06:59:38 +0000

Merge remote-tracking branch 'u-boot/master' into 'u-boot-arm/master' List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

e72d344386bf80738fab7a6bd37cb321f443093a - Merge branch 'master' of git://git.denx.de/u-boot

Fri, 13 Feb 2015 10:17:01 +0000

Merge branch 'master' of git://git.denx.de/u-boot List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

a0573d19885236ba03d412f7788104f75f0dea64 - Merge branch 'master' of git://git.denx.de/u-boot-mips

Fri, 30 Jan 2015 18:56:15 +0000

Merge branch 'master' of git://git.denx.de/u-boot-mips List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

4a5d8898bca3e442b61e34b811aec8332752efd3 - MIPS: unify cache initialization code

Thu, 29 Jan 2015 01:27:58 +0000

MIPS: unify cache initialization codeThe mips32 & mips64 cache initialization code differs only in that themips32 code supports reading the cache size from coprocessor 0 registersat runtime. Move the more developed mips32 version to a commonarch/mips/lib/cache_init.S & remove the now-redundant mips64 version inorder to reduce duplication. The temporary registers used are shuffledslightly in order to work for both mips32 & mips64 builds. The RAregister is defined differently to suit mips32 & mips64, but will beremoved by a later commit in the series after further cleanup.Signed-off-by: Paul Burton Cc: Daniel Schwierzeck List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

30374f98d14d5979f95a9d21d66346eaa9a795a1 - MIPS: unify cache maintenance functions

Thu, 29 Jan 2015 01:27:57 +0000

MIPS: unify cache maintenance functionsMove the more developed mips32 version of the cache maintenancefunctions to a common arch/mips/lib/cache.c, in order to reduceduplication between mips32 & mips64.Signed-off-by: Paul Burton Cc: Daniel Schwierzeck List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

38cd8c4253013ccdd4052ee021f6066fe9a52551 - Merge branch 'master' of git://git.denx.de/u-boot-mips

Thu, 27 Nov 2014 15:49:38 +0000

Merge branch 'master' of git://git.denx.de/u-boot-mips List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

426f87045c69b8887706f8eb20e9790e3025e35b - MIPS: remove board.c

Sat, 15 Nov 2014 22:46:58 +0000

MIPS: remove board.cAfter all MIPS boards are switched to generic-board, theMIPS specific board.c can be removed.Signed-off-by: Daniel Schwierzeck List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

e7f9350525d73233d4eaf1793f8fe618e9fd4910 - Merge branch 'master' of git://git.denx.de/u-boot-arm

Thu, 15 May 2014 08:27:32 +0000

Merge branch 'master' of git://git.denx.de/u-boot-arm List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19 - Merge branch 'u-boot/master'

Fri, 09 May 2014 08:47:05 +0000

Merge branch 'u-boot/master'Conflicts: drivers/net/Makefile(trivial merge) List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

adcdeacc3eda1e5949e54062aa99c299e12483be - Merge branch 'master' of git://git.denx.de/u-boot-mips

Wed, 23 Apr 2014 15:07:11 +0000

Merge branch 'master' of git://git.denx.de/u-boot-mips List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

9f0868fffb81ff6533d579b902058eb4f2669d40 - MIPS: allow use of generic board

Mon, 07 Apr 2014 09:11:22 +0000

MIPS: allow use of generic boardThis patch allows MIPS boards to make use of generic board, replacingarch/mips/lib/board.c with common/board_{f,r}.c and struct bd_info withthe asm-generic version.Signed-off-by: Paul Burton List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

11a932fb18a497fc1b9ad0c4c0e3c5969e455a42 - MIPS: move mips_io_port_base out of board.c

Mon, 07 Apr 2014 09:11:18 +0000

MIPS: move mips_io_port_base out of board.cMove the definition of this variable out of arch/mips/lib/board.c inpreparation for allowing use of generic board on MIPS, which will leadto this file not being compiled.Signed-off-by: Paul Burton List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile

1cad23c5f471d695bed1e3907e30caee3c2a3056 - Merge branch 'master' of git://git.denx.de/u-boot-arm into master

Fri, 04 Apr 2014 09:35:30 +0000

Merge branch 'master' of git://git.denx.de/u-boot-arm into masterConflicts: arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfgSigned-off-by: Stefano Babic List of files: /rk3399_rockchip-uboot/arch/mips/lib/Makefile