search for: abicalls

...klibc.git;a=commit;h=0a14ced5d7d0c23ece5d2828cbdff6cb1c589b8d Author: James Cowgill <james.cowgill at mips.com> AuthorDate: Fri, 2 Mar 2018 14:48:21 +0000 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Wed, 2 Jan 2019 03:08:04 +0000 [klibc] mips64: compile with -mno-abicalls By default, the MIPS toolchain compiles all code as PIC. Since klibc links everything at static addresses, we don't need PIC code so use -mno-abicalls to disable it. To fix subsequent link errors, use -Ttext-segment to adjust the base address of klibc to a more sensible location. This fixes a...

On 10 December 2013 15:35, Joerg Sonnenberger <joerg at britannica.bec.de> wrote: > Without it, -save-temps is broken. As such it falls into a pretty > basic use case. Hi Joerg, I couldn't find anything in bugzilla that matched your description, but it seems like a pretty bad problem, can you point us to the discussion so we can decide whether it should be fixed now, or after the

...your description, > but it seems like a pretty bad problem, can you point us to the > discussion so we can decide whether it should be fixed now, or after > the move. I haven't created a bug report yet. From memory, the following things are missing and higher-priority: Pseudo-ops: .abicalls .fpu .arch .cpu Modifiers: foo(GOTOFF) foo(GOT) foo(PLT) ldr is a separate issue with a pending patch. Joerg

> I haven't created a bug report yet. From memory, the following things > are missing and higher-priority: This is looking hopeful. > Pseudo-ops: > .abicalls This is MIPS-only. > .fpu > .arch > .cpu I think there was some opinion that directives like these weren't essential (well, I certainly hold the opinion!) > Modifiers: > foo(GOTOFF) > foo(GOT) > foo(PLT) I think David fix...

...on: $ cat hello.c #include <stdio.h> int main(int argc, char *argv[]) { printf("Hello World\n"); return 0; } $ gcc -O0 -S hello.c $ cat hello.s .file 1 "hello.c" .section .mdebug.abi64 .previous .nan legacy .gnu_attribute 4, 1 .abicalls .rdata .align 3 .LC0: .ascii "Hello World\000" .text .align 2 .globl main .set nomips16 .set nomicromips .ent main .type main, @function main: .frame $fp,48,$31 # vars= 16, regs= 3/0, args= 0, gp= 0...

...World\n"); >> return 0; >> } >> >> $ gcc -O0 -S hello.c >> >> $ cat hello.s >> .file 1 "hello.c" >> .section .mdebug.abi64 >> .previous >> .nan legacy >> .gnu_attribute 4, 1 >> .abicalls >> .rdata >> .align 3 >> .LC0: >> .ascii "Hello World\000" >> .text >> .align 2 >> .globl main >> .set nomips16 >> .set nomicromips >> .ent main >> .type main,...

...tarted crashing on 64-bit MIPS and in my quest to fix the bug I got a bit carried away and fixed a few other things as well. Here are various miscellaneous MIPS patches, although the first patch is the important one. Thanks, James *** BLURB HERE *** James Cowgill (5): mips64: compile with -mno-abicalls mips: use -Ttext-segment when linking shared library mips/mips64: simplify crt0 code mips: don't save floating point registers in setjmp / longjmp mips64: remove __unused from __jmp_buf usr/include/arch/mips/klibc/archsetjmp.h | 14 -- usr/include/arch/mips64/klibc/archsetjmp.h |...

On Tue, Dec 10, 2013 at 05:07:06PM +0000, Tim Northover wrote: > > I haven't created a bug report yet. From memory, the following things > > are missing and higher-priority: > > This is looking hopeful. > > > Pseudo-ops: > > .abicalls > > This is MIPS-only. Sorry, too much assembler in a short time. You are right. > > .fpu > > .arch > > .cpu > > I think there was some opinion that directives like these weren't > essential (well, I certainly hold the opinion!) At l...

...a large write to allow better bypass [klibc] fwrite: fix typo in comment Helge Deller (1): [klibc] Add pread and pwrite 32bit syscall wrappers for parisc James Clarke (1): [klibc] Fix sparc assembly when compiled as PIC James Cowgill (5): [klibc] mips64: compile with -mno-abicalls [klibc] mips: use -Ttext-segment when linking shared library [klibc] mips/mips64: simplify crt0 code [klibc] mips: don't save floating point registers in setjmp / longjmp [klibc] mips64: remove __unused from __jmp_buf Jay Vosburgh (1): [klibc] ipconfig: handle mul...

...ove unused variables [klibc] use more consistent quoting [klibc] remove some 'make -s' build spew [klibc] add more PHONY targets to $(PHONY) James Clarke (1): [klibc] Fix sparc assembly when compiled as PIC James Cowgill (5): [klibc] mips64: compile with -mno-abicalls [klibc] mips: use -Ttext-segment when linking shared library [klibc] mips/mips64: simplify crt0 code [klibc] mips: don't save floating point registers in setjmp / longjmp [klibc] mips64: remove __unused from __jmp_buf Jay Vosburgh (1): [klibc] ipconfig: handle mul...

Actually, GCC will generate non-PIC for n64. Maybe that is a recent addition, but we are using its results. Even if PIC may be faster and smaller code, it seems that non-PIC is still useful for bare-metal. That's the driver of my interest. I guess we can just test what happens when that part of the conditional is removed. As a side note, if it isn't supported then we should probably

...-- /dev/null +++ b/usr/klibc/arch/mips/MCONFIG @@ -0,0 +1,15 @@ +# -*- makefile -*- +# +# arch/mips/MCONFIG +# +# Special rules for this architecture. Note that this is actually +# included from the main Makefile, and that pathnames should be +# accordingly. +# + +KLIBCARCHREQFLAGS = -fno-pic -mno-abicalls -G 0 +KLIBCOPTFLAGS = -Os +KLIBCBITSIZE = 32 + +# Extra linkflags when building the shared version of the library +KLIBCSHAREDFLAGS = -T $(src)/arch/$(KLIBCARCH)/klibc.ld diff --git a/usr/klibc/arch/mips/Makefile.inc b/usr/klibc/arch/mips/Makefile.inc new file mode 100644 index 0000000..31...

I have updated the klibc patchset based on feedback received. In particular, the patchset has been reorganized so as not to break git-bisect. Additionally, this updates the patch base to 2.6.17-git12 (d38b69689c349f35502b92e20dafb30c62d49d63) and klibc 1.4.8; the main difference on the klibc side is removal of obsolete code. This is also available as a git tree at: