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author | Zack Weinberg <zackw@panix.com> | 2019-05-16 13:34:27 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2019-05-22 10:05:40 -0400 |
commit | a053e878494080f7070cf92890e546057236c9c9 (patch) | |
tree | c906e6ed1cb5ffd3f7ea460d521bd8317e8d855b /sysdeps/powerpc/powerpc32/__longjmp-common.S | |
parent | 46ae07324b1cd50fbf8f37a076d6babcfca7c510 (diff) | |
download | glibc-a053e878494080f7070cf92890e546057236c9c9.zip glibc-a053e878494080f7070cf92890e546057236c9c9.tar.gz glibc-a053e878494080f7070cf92890e546057236c9c9.tar.bz2 |
Remove support for PowerPC SPE extension (powerpc*-*-*gnuspe*).
GCC 9 dropped support for the SPE extensions to PowerPC, which means
powerpc*-*-*gnuspe* configurations are no longer buildable with that
compiler. This ISA extension was peculiar to the “e500” line of
embedded PowerPC chips, which, as far as I can tell, are no longer
being manufactured, so I think we should follow suit.
This patch was developed by grepping for “e500”, “__SPE__”, and
“__NO_FPRS__”, and may not eliminate every vestige of SPE support.
Most uses of __NO_FPRS__ are left alone, as they are relevant to
normal embedded PowerPC with soft-float.
* sysdeps/powerpc/preconfigure: Error out on powerpc-*-*gnuspe*
host type.
* scripts/build-many-glibcs.py: Remove powerpc-*-linux-gnuspe
and powerpc-*-linux-gnuspe-e500v1 from list of build configurations.
* sysdeps/powerpc/powerpc32/e500: Recursively delete.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/e500: Recursively delete.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h:
Delete.
* sysdeps/powerpc/fpu_control.h: Remove SPE variant.
Issue an #error if used with a compiler in SPE-float mode.
* sysdeps/powerpc/powerpc32/__longjmp_common.S
* sysdeps/powerpc/powerpc32/setjmp_common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
Remove code to preserve SPE register state.
* sysdeps/unix/sysv/linux/powerpc/elision-lock.c
* sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
Remove __SPE__ ifndefs.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/__longjmp-common.S')
-rw-r--r-- | sysdeps/powerpc/powerpc32/__longjmp-common.S | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/sysdeps/powerpc/powerpc32/__longjmp-common.S b/sysdeps/powerpc/powerpc32/__longjmp-common.S index 850b02a..e7a7007 100644 --- a/sysdeps/powerpc/powerpc32/__longjmp-common.S +++ b/sysdeps/powerpc/powerpc32/__longjmp-common.S @@ -25,12 +25,6 @@ # include <jmpbuf-offsets.h> #endif -#if defined __SPE__ || (defined __NO_FPRS__ && !defined _SOFT_FLOAT) -# define LOAD_GP(N) evldd r##N,((JB_FPRS+((N)-14)*2)*4)(r3) -#else -# define LOAD_GP(N) lwz r##N,((JB_GPRS+(N)-14)*4)(r3) -#endif - ENTRY (__longjmp_symbol) #if defined PTR_DEMANGLE || defined CHECK_SP @@ -46,13 +40,13 @@ ENTRY (__longjmp_symbol) lwz r1,(JB_GPR1*4)(r3) #endif lwz r0,(JB_LR*4)(r3) - LOAD_GP (14) - LOAD_GP (15) - LOAD_GP (16) - LOAD_GP (17) - LOAD_GP (18) - LOAD_GP (19) - LOAD_GP (20) + lwz r14,((JB_GPRS+14-14)*4)(r3) + lwz r15,((JB_GPRS+15-14)*4)(r3) + lwz r16,((JB_GPRS+16-14)*4)(r3) + lwz r17,((JB_GPRS+17-14)*4)(r3) + lwz r18,((JB_GPRS+18-14)*4)(r3) + lwz r19,((JB_GPRS+19-14)*4)(r3) + lwz r20,((JB_GPRS+20-14)*4)(r3) #ifdef PTR_DEMANGLE # ifndef CHECK_SP PTR_DEMANGLE3 (r1, r24, r25) @@ -63,19 +57,19 @@ ENTRY (__longjmp_symbol) second argument (-4@4), and target address (4@0), respectively. */ LIBC_PROBE (longjmp, 3, 4@3, -4@4, 4@0) mtlr r0 - LOAD_GP (21) - LOAD_GP (22) + lwz r21,((JB_GPRS+21-14)*4)(r3) + lwz r22,((JB_GPRS+22-14)*4)(r3) lwz r5,(JB_CR*4)(r3) - LOAD_GP (23) - LOAD_GP (24) - LOAD_GP (25) + lwz r23,((JB_GPRS+23-14)*4)(r3) + lwz r24,((JB_GPRS+24-14)*4)(r3) + lwz r25,((JB_GPRS+25-14)*4)(r3) mtcrf 0xFF,r5 - LOAD_GP (26) - LOAD_GP (27) - LOAD_GP (28) - LOAD_GP (29) - LOAD_GP (30) - LOAD_GP (31) + lwz r26,((JB_GPRS+26-14)*4)(r3) + lwz r27,((JB_GPRS+27-14)*4)(r3) + lwz r28,((JB_GPRS+28-14)*4)(r3) + lwz r29,((JB_GPRS+29-14)*4)(r3) + lwz r30,((JB_GPRS+30-14)*4)(r3) + lwz r31,((JB_GPRS+31-14)*4)(r3) LIBC_PROBE (longjmp_target, 3, 4@3, -4@4, 4@0) mr r3,r4 blr |