search for: 40048b

...LTO. Since modern system widely use the 64bit, the code need to run in high address (larger than 2 GB) is a reasonable requirement. $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin $ objdump -dS codemodel1_large_lto_gcc.bin int main(int argc, const char* argv[]) { 40048b: 55 push %rbp 40048c: 48 89 e5 mov %rsp,%rbp 40048f: 48 83 ec 20 sub $0x20,%rsp 400493: 89 7d ec mov %edi,-0x14(%rbp) 400496: 48 89 75 e0 mov %rsi,-0x20(%rbp) int t = g...

...ion to add. What is the linker you're using? Are you building your own clang? -- Mehdi > > $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin > $ objdump -dS codemodel1_large_lto_gcc.bin > > int main(int argc, const char* argv[]) > { > 40048b: 55 push %rbp > 40048c: 48 89 e5 mov %rsp,%rbp > 40048f: 48 83 ec 20 sub $0x20,%rsp > 400493: 89 7d ec mov %edi,-0x14(%rbp) > 400496: 48 89 75 e0 mov %rsi,-0x20...

...you're using? Are you building your own clang? > > -- > Mehdi > > > > > > $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o > codemodel1_large_lto_gcc.bin > $ objdump -dS codemodel1_large_lto_gcc.bin > > int main(int argc, const char* argv[]) > { > 40048b: 55 push %rbp > 40048c: 48 89 e5 mov %rsp,%rbp > 40048f: 48 83 ec 20 sub $0x20,%rsp > 400493: 89 7d ec mov %edi,-0x14(%rbp) > 400496: 48 89 75 e0 mov %rsi,-0x20...

...ering that it is really a trivial option to add. What is the linker you're using? Are you building your own clang? -- Mehdi $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin $ objdump -dS codemodel1_large_lto_gcc.bin int main(int argc, const char* argv[]) { 40048b: 55 push %rbp 40048c: 48 89 e5 mov %rsp,%rbp 40048f: 48 83 ec 20 sub $0x20,%rsp 400493: 89 7d ec mov %edi,-0x14(%rbp) 400496: 48 89 75 e0 mov %rsi,-0x20(%rbp) int t = g...

...re using? Are you building your own clang? > > -- > Mehdi > > > > > > $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin > $ objdump -dS codemodel1_large_lto_gcc.bin > > int main(int argc, const char* argv[]) > { > 40048b: 55 push %rbp > 40048c: 48 89 e5 mov %rsp,%rbp > 40048f: 48 83 ec 20 sub $0x20,%rsp > 400493: 89 7d ec mov %edi,-0x14(%rbp) > 400496: 48 89 75 e0 mov %rsi,-0x20...

...dering that it is really a trivial option to add. What is the linker you're using? Are you building your own clang? -- Mehdi $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin $ objdump -dS codemodel1_large_lto_gcc.bin int main(int argc, const char* argv[]) { 40048b: 55 push %rbp 40048c: 48 89 e5 mov %rsp,%rbp 40048f: 48 83 ec 20 sub $0x20,%rsp 400493: 89 7d ec mov %edi,-0x14(%rbp) 400496: 48 89 75 e0 mov %rsi,-0x20(%rbp) int t = g...

Hi, > On May 29, 2016, at 7:36 AM, Shi, Steven <steven.shi at intel.com> wrote: > > Hi Mehdi, > After deeper debug, I found my firmware LTO wrong code issue is related to X64 code model (-mcmodel=large) is always overridden as small (-mcmodel=small) if LTO build. And I don't know how to correctly specific the large code model for my X64 firmware LTO build. Appreciate if

...> > Mehdi > > > > > > > > > > > > $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o > > codemodel1_large_lto_gcc.bin > > $ objdump -dS codemodel1_large_lto_gcc.bin > > > > int main(int argc, const char* argv[]) > > { > > 40048b: 55 push %rbp > > 40048c: 48 89 e5 mov %rsp,%rbp > > 40048f: 48 83 ec 20 sub $0x20,%rsp > > 400493: 89 7d ec mov %edi,-0x14(%rbp) > > 400496: 48 89 75 e0 mov %rsi,-0x20(%rbp) > > int t = global_func(argc); > > 40049a: 8b 45 ec mov -0x14(%rbp),%eax > > 40049...

...e using? Are you building your own clang? > > -- > Mehdi > > > > > > $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin > $ objdump -dS codemodel1_large_lto_gcc.bin > > int main(int argc, const char* argv[]) > { > 40048b: 55 push %rbp > 40048c: 48 89 e5 mov %rsp,%rbp > 40048f: 48 83 ec 20 sub $0x20,%rsp > 400493: 89 7d ec mov %edi,-0x14(%rbp) > 400496: 48 89 75 e0 mov %rsi,-0x20...

...dering that it is really a trivial option to add. What is the linker you're using? Are you building your own clang? -- Mehdi $ gcc -g -O0 -flto codemodel1.c -mcmodel=large -o codemodel1_large_lto_gcc.bin $ objdump -dS codemodel1_large_lto_gcc.bin int main(int argc, const char* argv[]) { 40048b: 55 push %rbp 40048c: 48 89 e5 mov %rsp,%rbp 40048f: 48 83 ec 20 sub $0x20,%rsp 400493: 89 7d ec mov %edi,-0x14(%rbp) 400496: 48 89 75 e0 mov %rsi,-0x20(%rbp) int t = g...