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populate ELF header information on the initial stack so that glibc can set up TLS properly

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Balazs Gerofi bgerofi@riken.jp
2012-10-09 00:51:50 +09:00
parent f1da972bb7
commit 9a8449df2b
7 changed files with 67 additions and 8 deletions
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19
kernel/process.c
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@@ -6,6 +6,7 @@
#include <aal/debug.h>
#include <page.h>
#include <cpulocal.h>
#include <auxvec.h>
#define DEBUG_PRINT_PROCESS
@@ -199,7 +200,8 @@ int add_process_memory_range(struct process *process,
void init_process_stack(struct process *process, int argc, char **argv,
void init_process_stack(struct process *process, struct program_load_desc *pn,
int argc, char **argv,
int envc, char **env)
{
int s_ind = 0;
@@ -215,11 +217,16 @@ void init_process_stack(struct process *process, int argc, char **argv,
USER_END,
virt_to_phys(stack), VR_STACK);
p[-1] = 0; /* AT_NULL */
p[-2] = 0;
p[-3] = USER_END - sizeof(unsigned long) * 2;
p[-4] = 0; /* envp terminating NULL */
s_ind = -5;
s_ind = -1;
p[s_ind--] = 0; /* AT_NULL */
p[s_ind--] = 0;
p[s_ind--] = pn->at_phnum; /* AT_PHNUM */
p[s_ind--] = AT_PHNUM;
p[s_ind--] = pn->at_phent; /* AT_PHENT */
p[s_ind--] = AT_PHENT;
p[s_ind--] = pn->at_phdr; /* AT_PHDR */
p[s_ind--] = AT_PHDR;
p[s_ind--] = 0; /* envp terminating NULL */
/* envp */
for (arg_ind = envc - 1; arg_ind > -1; --arg_ind) {
p[s_ind--] = (unsigned long)env[arg_ind];