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[Bug middle-end/37170] [4.4 Regression]: gcc.dg/weak/weak-1.c
- From: "aldot at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Sep 2008 09:51:42 -0000
- Subject: [Bug middle-end/37170] [4.4 Regression]: gcc.dg/weak/weak-1.c
- References: <bug-37170-507@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #84 from aldot at gcc dot gnu dot org 2008-09-24 09:51 -------
The fix doesn't seem to work for me on arm:
$ cat pr-weak.c
/* tell the compiler that the count isn't in the small data section if the arch
* has one (eg: FRV)
*/
extern const unsigned long kallsyms_num_syms
__attribute__((weak, section(".rodata")));
int main(void) {
return !!kallsyms_num_syms;
}
$ /there.arm/usr/bin/arm-linux-uclibcgnueabi-gcc -Os -S -o - pr-weak.c -v
Using built-in specs.
Target: arm-linux-uclibcgnueabi
Configured with: /srcs/toolchain_build_arm_nofpu/gcc-4.4.0/configure
--prefix=/usr --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu
--target=arm-linux-uclibcgnueabi --enable-languages=c,fortran
--with-sysroot=/there.arm
--with-build-time-tools=/there.arm/usr/arm-linux-uclibcgnueabi/bin
--disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --enable-shared
--with-gmp=/srcs/toolchain_build_arm_nofpu/gmp
--with-mpfr=/srcs/toolchain_build_arm_nofpu/mpfr --disable-nls --enable-threads
--disable-multilib --with-float=soft --with-abi=aapcs-linux --disable-libssp
--disable-libssp --disable-libmudflap --disable-libgomp
--enable-decimal-float=no
Thread model: posix
gcc version 4.4.0 20080923 (experimental) [trunk revision 140602] (GCC)
COLLECT_GCC_OPTIONS='-Os' '-S' '-o' '-' '-v' '-mfloat-abi=soft'
'-mabi=aapcs-linux'
/there.arm/usr/bin/../libexec/gcc/arm-linux-uclibcgnueabi/4.4.0/cc1 -quiet -v
-iprefix /there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/ pr-weak.c
-quiet -dumpbase pr-weak.c -mfloat-abi=soft -mabi=aapcs-linux -auxbase-strip -
-Os -version -o -
ignoring nonexistent directory
"/there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/../../../../arm-linux-uclibcgnueabi/include"
ignoring nonexistent directory "/there.arm/usr/local/include"
ignoring duplicate directory
"/there.arm/usr/bin/../lib/gcc/../../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/include"
ignoring duplicate directory
"/there.arm/usr/bin/../lib/gcc/../../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/include-fixed"
ignoring nonexistent directory
"/there.arm/usr/bin/../lib/gcc/../../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/../../../../arm-linux-uclibcgnueabi/include"
#include "..." search starts here:
#include <...> search starts here:
/there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/include
/there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/include-fixed
/there.arm/usr/include
End of search list.
GNU C (GCC) version 4.4.0 20080923 (experimental) [trunk revision 140602]
(arm-linux-uclibcgnueabi)
compiled by GNU C version 4.3.2, GMP version 4.2.2, MPFR version 2.3.1.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 071bc0f306e6057c8a651fee23ec8dfa
.cpu arm10tdmi
.fpu softvfp
.eabi_attribute 20, 1
.eabi_attribute 21, 1
.eabi_attribute 23, 3
.eabi_attribute 24, 1
.eabi_attribute 25, 1
.eabi_attribute 26, 2
.eabi_attribute 30, 4
.eabi_attribute 18, 4
.file "pr-weak.c"
.text
.align 2
.global main
.type main, %function
main:
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 0, uses_anonymous_args = 0
@ link register save eliminated.
ldr r3, .L3
ldr r0, [r3, #0]
subs r0, r0, #0
movne r0, #1
bx lr
.L4:
.align 2
.L3:
.word kallsyms_num_syms
.size main, .-main
.ident "GCC: (GNU) 4.4.0 20080923 (experimental) [trunk revision
140602]"
.section .note.GNU-stack,"",%progbits
COMPILER_PATH=/there.arm/usr/bin/../libexec/gcc/arm-linux-uclibcgnueabi/4.4.0/:/there.arm/usr/bin/../libexec/gcc/:/there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/../../../../arm-linux-uclibcgnueabi/bin/
LIBRARY_PATH=/there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/:/there.arm/usr/bin/../lib/gcc/:/there.arm/usr/bin/../lib/gcc/arm-linux-uclibcgnueabi/4.4.0/../../../../arm-linux-uclibcgnueabi/lib/:/there.arm/lib/:/there.arm/usr/lib/
COLLECT_GCC_OPTIONS='-Os' '-S' '-o' '-' '-v' '-mfloat-abi=soft'
'-mabi=aapcs-linux'
works with 4.3.2 configured in the same way.
--
aldot at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37170