556252 - support building nspr with gcc on HP-UX ia64 (IPF, Itanium)

Status: RESOLVED FIXED

(NSPR :: NSPR, enhancement)

Description

[Michael Haubenwallner]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.6) Gecko/20100111 Gentoo Firefox/3.5.6
Build Identifier: nspr-4.8.3 using gcc on ia64-hp-hpux

gcc does not support asm helper functions like _Asm_mov_from_ar(), leading to this linker warning multiple times when building NSS against an NSPR built with gcc:
ld: (Warning) Unsatisfied symbol "_Asm_mov_from_ar" in file /tmp/install/lib/libnspr4.so

Subsequently running shlibsign within NSS fails, even if the NSS-build does not abort in this case.

Reproducible: Always

Steps to Reproduce:
1. Compile NSPR on ia64-hpux using gcc.
2. Compile NSS using gcc against that NSPR.

Actual Results:  
Checksums of shared libraries in NSS are not created, error message is:

cd HP-UXB.11.23_ia64_ia64-hp-hpux11.23-gcc_32_OPT.OBJ ; sh /tmp/nss-3.12.5/mozilla/security/nss/cmd/shlibsign/./sign.sh /tmp/nss-3.12.5/mozilla/security/nss/cmd/shlibsign/../../../dist/HP-UXB.11.23_ia64_ia64-hp-hpux11.23-gcc_32_OPT.
OBJ \
        /tmp/nss-3.12.5/mozilla/security/nss/cmd/shlibsign/HP-UXB.11.23_ia64_ia64-hp-hpux11.23-gcc_32_OPT.OBJ HP-UX \
        /tmp/install/lib   /tmp/nss-3.12.5/mozilla/security/nss/cmd/shlibsign/../../../dist/HP-UXB.11.23_ia64_ia64-hp-hpux11.23-gcc_32_OPT.OBJ/lib/libnssdbm3.so
/tmp/nss-3.12.5/mozilla/security/nss/cmd/shlibsign/HP-UXB.11.23_ia64_ia64-hp-hpux11.23-gcc_32_OPT.OBJ/shlibsign -v -i /tmp/nss-3.12.5/mozilla/security/nss/cmd/shlibsign/../../../dist/HP-UXB.11.23_ia64_ia64-hp-hpux11.23-gcc_32_OPT.OBJ/lib/libnssdbm3.so
/usr/lib/hpux32/dld.so: Unsatisfied code symbol '_Asm_mov_from_ar' in load module '/tmp/install/lib/libnspr4.so'.
C_Initialize failed: 0x00000030, CKR_DEVICE_ERROR
NSPR error code: -5977: Failure to load dynamic library
Initiailzing softoken failed: 0x00000030, CKR_DEVICE_ERROR
NSPR error code: -5977: Failure to load dynamic library


Expected Results:  
Successfully create the library checksums.

This requires the general build support in NSPR for gcc on HP-UX, bug#550428.

Comment 1

[Michael Haubenwallner]

Attachment: Use immediate inline assembly with gcc.

This basically is what HP-cc (and aCC) create from _Asm_mov_from_ar(_AREG44).
Although it seems to work - I'm not a gcc-inline-assembly expert, so you might want to double-check with HP experts (eg. Dennis Handly), thank you!

Comment 2

[Wan-Teh Chang]

Attachment: Use immediate inline assembly with gcc, v2, by Michael Haubenwallner

r=wtc.  I did a web search and found this code in several
open source projects.  I changed "asm" to "__asm__ __volatile__".

I checked in the patch on the NSPR trunk (NSPR 4.8.5).

Checking in uxrng.c;
/cvsroot/mozilla/nsprpub/pr/src/md/unix/uxrng.c,v  <--  uxrng.c
new revision: 1.24; previous revision: 1.23
done