Mingw hosted arm-elf output differs from linux hosted arm-elf when compiling
with -Os and -mthumb for the code added below. Remove -mthumb and the output
won't differ.
Mingw hosted toolchain:
Target: arm-elf
Configured with: ../gcc-4.2.2/configure --target=arm-elf
--prefix=/proj/crossgcc/arm-elf --disable-nls --with-gnu-as --with-gnu-ld
--enable-languages=c --disable-shared --disable-threads --disable-libssp
--disable-__cxa_atexit --disable-libstdcxx-pch --enable-interwork
--enable-multilib
Thread model: single
gcc version 4.2.2
Linux hosted toolchain:
Target: arm-elf
Configured with: ../gcc-4.2.2/configure --target=arm-elf
--prefix=/proj/crossgcc/arm-elf --disable-nls --with-gnu-as --with-gnu-ld
--enable-languages=c --disable-shared --disable-threads --disable-libssp
--disable-__cxa_atexit --disable-libstdcxx-pch --enable-interwork
--enable-multilib
Thread model: single
gcc version 4.2.2
arm-elf-gcc -Wall -mlittle-endian -mthumb -mthumb-interwork -Os -save-temps -c
main.c
main.c:
typedef struct pic
{
unsigned int soft_set;
unsigned int soft_clear;
} pic_t;
typedef struct isr
{
void (*func)(void *);
void * arg;
} isr_t;
static volatile pic_t * const pSIC = (pic_t *)0xCA000000;
static isr_t isr_table[32];
static void isr1 (void * arg)
{
/* Clear high priority IRQ */
pSIC->soft_clear = (1 << 0);
}
int main (void)
{
/* Install interrupt handlers */
isr_table[0].func = isr1;
isr_table[0].arg = (void *)3;
while(1);
return (1);
}
regards Andreas
--
Summary: mingw hosted arm-elf output differs from linux hosted
arm-elf when compiling with -Os and -mthumb
Product: gcc
Version: 4.2.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: info dot gnu at rt-labs dot com
GCC build triplet: x86_64-unknown-linux-gnu, i686-pc-mingw32
GCC host triplet: x86_64-unknown-linux-gnu, i686-pc-mingw32
GCC target triplet: arm-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39663
