10900 – [darwin] trampolines crash (original) (raw)

| Description Adriaan van Os 2003-05-21 10:16:01 UTC trampolines crash on apple-powerpc-darwin (known for a long time, but still not fixed in gcc-3.3) Release: gcc-3.3 Environment: apple-powerpc-darwin 6.4 ppc7400 Comment 1 Adriaan van Os 2003-05-21 10:16:01 UTC Fix: # bug fix for trampolines (Andrew Reynolds) *** gcc/config/rs6000/darwin-tramp.asm.orig Sat Dec 29 09:07:56 2001 --- gcc/config/rs6000/darwin-tramp.asm Mon Feb 10 01:55:39 2003 *************** *** 60,75 **** .globl ___trampoline_setup ___trampoline_setup: ! mflr r0 /* save return address */ ! bcl 20,31,LCF0 /* load up __trampoline_initial into r7 */ ! LCF0: ! mflr r11 ! addi r7,r11,ha16(LTRAMP-LCF0) ! lwz r7,lo16(LTRAMP-LCF0)(r7) ! subi r7,r7,4 ! li r8,trampoline_size /* verify trampoline big enough */ ! cmpw cr1,r8,r4 ! srwi r4,r4,2 /* # words to move */ addi r9,r3,-4 /* adjust pointer for lwzu */ mtctr r4 blt cr1,Labort --- 60,74 ---- .globl ___trampoline_setup ___trampoline_setup: ! mflr r0 /* save return address */ ! bcl 20,31,LCF0 /* load up __trampoline_initial into r7 */ ! LCF0: ! Ltrampoline_address = Ltrampoline_initial-4-. ! mflr r11 ! addi r7,r11,Ltrampoline_address ! li r8,trampoline_size /* verify trampoline big enough */ ! cmpw cr1,r8,r4 ! srwi r4,r4,2 /* # words to move */ addi r9,r3,-4 /* adjust pointer for lwzu */ mtctr r4 blt cr1,Labort *************** *** 124,131 **** #else bl _abort #endif - .data - .align 2 - LTRAMP: - .long Ltrampoline_initial --- 123,126 ---- Comment 2 Wolfgang Bangerth 2003-05-21 14:07:57 UTC Responsible-Changed-From-To: unassigned->shebs Responsible-Changed-Why: Stan, can you take a look? There's even a patch in this PR. Thanks W. Comment 3 Dara Hazeghi 2003-07-05 20:01:58 UTC Confirmed still present on mainline sources (20030705). Sent a mail to the list, so hopefully somebody will review this soon. Comment 4 Drea Pinski 2003-07-06 02:14:08 UTC This patch is needed for Ada support. Comment 5 Adriaan van Os 2003-07-06 08:58:11 UTC Subject: Re: [mac os x] trampolines crash pinskia at physics dot uc dot edu wrote: > This patch is needed for Ada support. It is also needed for Pascal support. Regards, Adriaan van Os Comment 6 Drea Pinski 2003-07-06 16:57:17 UTC This should be fixed for 3.3.2 because it blocks Ada building and Pascal building (hopefully Pascal gets included for 3.5). Comment 7 Joseph S. Myers 2003-07-06 17:00:11 UTC Subject: Re: [mac os x] trampolines crash On Sun, 6 Jul 2003, gcc at microbizz dot nl wrote: > It is also needed for Pascal support. Are there any plans to merge Pascal into the GCC distribution? Stage 1 for GCC 3.4 has now ended, so it's probably too late for 3.4, but maybe for 3.5? Comment 8 Adriaan van Os 2003-07-07 15:22:06 UTC Subject: Re: [darwin] trampolines crash jsm at polyomino dot org dot uk wrote: >> It is also needed for Pascal support. > > Are there any plans to merge Pascal into the GCC distribution? Stage 1 > for GCC 3.4 has now ended, so it's probably too late for 3.4, but maybe > for 3.5? There are no immediate plans to merge Pascal into the GCC distribution, but for most platforms GCC releases are followed closely. The GNU Pascal for Mac OS X compiler (www.microbizz.nl/gpc.html) is in need of two important fixes in the GCC back-end, PR 10900 and 10901. Regards, Adriaan van Os Comment 11 Drea Pinski 2003-07-07 17:37:28 UTC Fixed for 3.3.1 and 3.4. Thanks Dale. Comment 12 Adriaan van Os 2003-07-08 07:19:37 UTC Subject: Re: [darwin] trampolines crash I can confirm that the patch works for Pascal. Thanks, Adriaan van Os Comment 13 Drea Pinski 2003-10-14 22:22:14 UTC This was really fixed for 3.3.1. | | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | |